V-8 in RX-7

[mazda6guy]

To all my fellow rotor headz I need your opinion. I was thinking about doing an V-8 conversion on my FB. What is your opinions and advice on this. I was thinking about going with a Chevy 350 along with a 700R4 tranny. Yes this car would be for the drag strip plus a daily commuter to and from work. I have plans of buying a TII in a couple of months so I still love the almighty Wankel! :mrgreen:

[FeeJ]

http://v8rx7.com/

thats a pretty decent site I stumbled upon

I've seen some discussions of V8's in FB's being insane overkill in power, but I dunno and if you feel like getting everywhere fast and probably sideways go do it lol

I say if the 12A is still functional keep it till she blows, so its still an RX-7, most people go with LT1's and other vette motors, they seem to fit well or whatever, but if you decide to do it anyway, GL, and take many pictures along the way

[xEJ20x]

http://v8rx7.com/

thats a pretty decent site I stumbled upon

I've seen some discussions of V8's in FB's being insane overkill in power, but I dunno and if you feel like getting everywhere fast and probably sideways go do it lol

I say if the 12A is still functional keep it till she blows, so its still an RX-7, most people go with LT1's and other vette motors, they seem to fit well or whatever, but if you decide to do it anyway, GL, and take many pictures along the way

I thought the older Vettes were running LS1 motors, except the most recent c6 vette.

[LSHatch]

I thought the older Vettes were running LS1 motors, except the most recent c6 vette.

C5's used the LS1. C4's used the LT1.

[moorefire]

I want one. I love FDs but I hate rotarys

FD+LS1 or VG30DET= my dream street killer

http://members.tripod.com/~grannys/3rdgenrx7chevyv8.html

[mazda6guy]

Yeah a nice combo with the FD is the LS1 motor. I just love that rotary sound especially when it is a turbo rotary. Well if my FB was a 13B I would not think of this conversion. Just think it is cheaper to do a v-8 coversion than a 13B turbo conversion for my FB. The only thing that I hate about rotaries is that they are really exspensive. :thumbdow:

[mazda6guy]

Well since I am so impatient the project is about to begin. I pick up the 700R4 tranny today and my buddy is going to do a fresh rebuild on it. Next month I am going to order the 350 small block from Summit. This project should hopefully be completed by next summer. :banana:

[sPrSw2o]

v8 rx7's are GAY.

[SilverTurboRidin]

v8 rx7's are GAY.

Hardly, They are some of the real street killer's.

[sPrSw2o]

rx7's were not designed for straight line performance. pulling the rotary and throwing in an anchor takes from the designs of the car, therefore ruining the car. this makes it GAY.

[LSHatch]

rx7's were not designed for straight line performance. pulling the rotary and throwing in an anchor takes from the designs of the car, therefore ruining the car. this makes it GAY.

Rotaries are heavy motors. You DO know this right?

Putting in an LT1 or LS1 will hardly hurt the handling. A lot of guys who have done the swap actually like the handling better with the Chevy.

[SilverTurboRidin]

rx7's were not designed for straight line performance. pulling the rotary and throwing in an anchor takes from the designs of the car, therefore ruining the car. this makes it GAY.

Rotaries are heavy motors. You DO know this right?

Putting in an LT1 or LS1 will hardly hurt the handling. A lot of guys who have done the swap actually like the handling better with the Chevy.

:thumbup: , Thank you!!! I knew you were a smart cookie like myself! LOL

[sPrSw2o]

rx7's were not designed for straight line performance. pulling the rotary and throwing in an anchor takes from the designs of the car, therefore ruining the car. this makes it GAY.

Rotaries are heavy motors. You DO know this right?

Putting in an LT1 or LS1 will hardly hurt the handling. A lot of guys who have done the swap actually like the handling better with the Chevy.

you must be joking. 2 ppl can lift a 13b from an engine bay w/ no hoist. try that with an ls1. those guys that "prefer" the handling in the chevy say this b/c the ls1 moves the rx7's weight distribution extremely to the front, which would cause understeer problems. an ls1 camaro/vette's weight distribution is more neutral b/c the rear of the car is heavier. this is why there is a more positive feeling in the chevy.

[LSHatch]

The TII 13b weighs in around 400lbs, while the LS1 almost hits 500. So a 100lb difference in the front which can easily be counteracted. Battery moved to the rear, fiberglass hood, take out all unnecessary parts. You end up with a car that has much more potential and reliability. The car ends up only being about 30-40 lbs heavier in the nose. Not too shabby.

[SilverTurboRidin]

you also get a car that with enough weight reduction will lift the front tires lol

[mazda6guy]

Here is a little more info about this swap. I got to ride in one yesterday with an LS1 in it and it is the shiznit setup for an FC. The RX-7's layout and structure is well suited to engine conversions. The rotary engine's eccentric shaft centerline is way up in the center of the rotary engine, dictating a much higher transmission location than that of a piston engine. The net result is that Mazda designed the RX-7 with a HUGE transmission tunnel, big enough to fit even the monster T-56 6 spd manual transmission which was used in the Viper and Corvette. The rotary engine's low torque output required Mazda to use a very heavy flywheel and a high rear gear ratio, a combination of factors that combined induce large amounts of stress on the RX-7's rear axles and hubs. Mazda planned accordingly, and designed plenty of strength into the RX-7's rear differential/axles/and hubs. Experience has shown that the stock NA RX-7 components are strong enough to withstand low 10sec 1/4mi passes, a feat that requires around 500hp. Now does this sound GAY?

[G1GSX]

RX7 with a viper motor and a 6 speed that would be fun :mrgreen:

[moorefire]

rx7's were not designed for straight line performance. pulling the rotary and throwing in an anchor takes from the designs of the car, therefore ruining the car. this makes it GAY.

Rotaries are heavy motors. You DO know this right?

Putting in an LT1 or LS1 will hardly hurt the handling. A lot of guys who have done the swap actually like the handling better with the Chevy.

you must be joking. 2 ppl can lift a 13b from an engine bay w/ no hoist. try that with an ls1. those guys that "prefer" the handling in the chevy say this b/c the ls1 moves the rx7's weight distribution extremely to the front, which would cause understeer problems. an ls1 camaro/vette's weight distribution is more neutral b/c the rear of the car is heavier. this is why there is a more positive feeling in the chevy.

You sound like all the annoying armchair engineers that cry on drift forums like "you can't drift anything that doesn't have 50/50 weight dist!!" idiots

No one prefers the weight dist of the V8, but the benefits in reliability, drivability, and not having a car that sounds like a chainsaw on crack greatily outweigh the weight distribution problem.

PS, if anyone is intrested in a sweet sr20det powered fc let me know immediately

[FC3S4]

Experience has shown that the stock NA RX-7 components are strong enough to withstand low 10sec 1/4mi passes, a feat that requires around 500hp. Now does this sound GAY?


No, it sounds wrong.

[sPrSw2o]

Here is a little more info about this swap. I got to ride in one yesterday with an LS1 in it and it is the shiznit setup for an FC. The RX-7's layout and structure is well suited to engine conversions. The rotary engine's eccentric shaft centerline is way up in the center of the rotary engine, dictating a much higher transmission location than that of a piston engine. The rotary engine's low torque output required Mazda to use a very heavy flywheel and a high rear gear ratio, a combination of factors that combined induce large amounts of stress on the RX-7's rear axles and hubs.

your looking at it the complete wrong way. the "high" centerline of the e-shaft does NOT dictate a higher transmission mount. it dictates a LOWER engine mounting location, which is just another reason dropping an ls1 (or any other piston engine) hurts the cars ability to turn, b/c it raises the vehicles center of gravity. a stock tII does not produce comparably low tq numbers, and why you think engineers used a heavy flywheel b/c of "low tq output", is beyond me. other than being a mating surface for your clutch, an flywheel has no purpose other than to carry momentum, and to smooth power impulses (which is less neccessary in a rotary).

i've never weighed a complete 13b, but ive held most of the main components (rotors, housings, etc..), and im pretty sure that a complete 13b does not weigh 400 lbs. adding that much weight DOES throw off the balance of the car. i said nothing about drifting. im no armchair engineer, and i care nothing about what weight distribution is prefered for drifting. im speaking only of real racing, in which moving the weight forward in an rx7 is in no way beneficial.

[FeeJ]

why are you yelling at him?? hes not doing it to your car hes doing it to his own car wityh his money...
so if you dont like just say I think ur wasting ur money but gl and dont blow urself up or understeer into a tree due to the weight distribution

the 'R' in RX-7 stands for rotary, so most rotary owners are a bit opposed to the swap, as a new owner of an FC I'd prefer a 13BT in the FB or something like that, but he claimed price and whatnot in the first post which is very reasonable to stay away from teh wankel.

the weight distribution fight, yeah mnootors are heavy, but the placement of the motor in the RX's are what gave it the good distribution, the motor is completely behind the front axle making it front-mid mounted.

at least hes not worrying about voiding a warranty or some crappy lil mod like a bolt on intake like a lot of people are so confused about on these boards. If it ends up being a mistake he'll learn in the end and the hard way

GL to you again in producing an extremely rare LS1 FB, mae sure to post pics along the way so we can follow up on its development and make sure you get it done :thumbup:

[sPrSw2o]

I wasn't yelling at him, I just gave him my opinion and reasons for it. If he only wanted agreement then he would/should have asked for that.

To the kid in the neon, shut up. There is no information is worse than wrong information (your specialty apparently). I also like it when it's not coming out of someone's ass, rather someone with experience.

- A 13bt is NOT 400lbs. (weigh one and tell me)
- An LS1 WILL throw off the balance of the car
- Your mother was a lizard (I won't call you stupid anymore if you can tell me what movie that was from)
- Ellis Jaun is NOT an improvement in an rx7.

[FC3S4]

Yeah a nice combo with the FD is the LS1 motor. I just love that rotary sound especially when it is a turbo rotary. Well if my FB was a 13B I would not think of this conversion. Just think it is cheaper to do a v-8 coversion than a 13B turbo conversion for my FB. The only thing that I hate about rotaries is that they are really exspensive. :thumbdow:

I would hardly call rotaries expensive. Whats expensive is all the custom stuff your gonna have to do to fit that ls1 in there, and then when you shoot a piston out of that aluminum block, fabbing everything back to put in a rotary again, thats when it gets expensive.

Hardly, They are some of the real street killer's.

Thats cool, the one v8 rx7 I every came across, ran a 15.3 and it had trouble beating my old na rotary

Rotaries are heavy motors. You DO know this right?

Putting in an LT1 or LS1 will hardly hurt the handling. A lot of guys who have done the swap actually like the handling better with the Chevy.

Heavy compared to what? A lima bean? I have held every part of a rotary engine in my hands, this includes the rotors, housings, exhaust mani, upper and lower intake mani's, turbo, and eccentric shaft. Those parts dont add up to 400 lbs. I have also pushed a S4 13bt and a 13brew accross the floor of a shop. I weigh 145 lbs soaking wet and I didnt have any problems. IMO they weigh about 200 lbs(these were complete motors btw)

The TII 13b weighs in around 400lbs, while the LS1 almost hits 500. So a 100lb difference in the front which can easily be counteracted. Battery moved to the rear, fiberglass hood, take out all unnecessary parts. You end up with a car that has much more potential and reliability. The car ends up only being about 30-40 lbs heavier in the nose. Not too shabby.

Read above statement. A stock t2 hood is fiberglass. So good luck shaving the weight down there. Taking out all unnecessary parts, that would include the ls1, that would shave alot of weight off.

you also get a car that with enough weight reduction will lift the front tires lol

You can do that with a rotary with no weight reduction. I've seen it so dont try to disprove me.

Experience has shown that the stock NA RX-7 components are strong enough to withstand low 10sec 1/4mi passes, a feat that requires around 500hp. Now does this sound GAY?


No, it sounds wrong.

Let me expand on this a little bit. Go to any rx7 forum and ask how much power the stock na tranny can handle. They will tell you this: "barely more then stock". Swapping in a stock s4 t2 motor (which has 182 hp and 183 torque) will destroy that tranny.

[FC3S4]

why are you yelling at him?? hes not doing it to your car hes doing it to his own car wityh his money...
so if you dont like just say I think ur wasting ur money but gl and dont blow urself up or understeer into a tree due to the weight distribution

the 'R' in RX-7 stands for rotary, so most rotary owners are a bit opposed to the swap, as a new owner of an FC I'd prefer a 13BT in the FB or something like that, but he claimed price and whatnot in the first post which is very reasonable to stay away from teh wankel.

the weight distribution fight, yeah mnootors are heavy, but the placement of the motor in the RX's are what gave it the good distribution, the motor is completely behind the front axle making it front-mid mounted.

at least hes not worrying about voiding a warranty or some crappy lil mod like a bolt on intake like a lot of people are so confused about on these boards. If it ends up being a mistake he'll learn in the end and the hard way

GL to you again in producing an extremely rare LS1 FB, mae sure to post pics along the way so we can follow up on its development and make sure you get it done :thumbup:

And so there is no confusion I am not yelling at anybody, I am just correcting the wrong statements. It is his money and he can do what he wants with it. And good luck to him, if he ever wants to sell it, I wont buy it.

[Freak Foot]

The rotary engine's eccentric shaft centerline is way up in the center of the rotary engine, dictating a much higher transmission location than that of a piston engine.

Wow...........Tri-state tuner, huh? I hope the only thing your tuning in your car is the radio.

Experience has shown that the stock NA RX-7 components are strong enough to withstand low 10sec 1/4mi passes.
A (single) experience . . . in a go-kart, maybe.


:thumbup: , Thank you!!! I knew you were a smart cookie like myself! LOL

"LOL" huh, you weren't the only one laughing after you said that.

v8 rx7's are GAY.

Hardly, They are some of the real street killer's.

Yeah, I bet you're running into them ALL the time.




Yes, you can remove accesories and do other things to shave weight after a v8 swap to get closer to their original weight. You can also do the same things to a stock-engined car and be lighter still....so that is hardly a valid argument for the swap.

You guys talking about the "minor" difference in the weight of an ls1 versus a 13bt need to remember that its not only WHAT the weight is but it's also WHERE the weight is.

Hold a 5 lb. dumbell next to your shoulder for five minutes....cake.....now hold it an arms length away.....not so cool. Would you rather play a football game with 5 lbs. on each ankle, or 10 lbs. on your back? Crude analogy, but it illustrates the idea.

[LSHatch]

Heavy compared to what? A lima bean? I have held every part of a rotary engine in my hands, this includes the rotors, housings, exhaust mani, upper and lower intake mani's, turbo, and eccentric shaft. Those parts dont add up to 400 lbs. I have also pushed a S4 13bt and a 13brew accross the floor of a shop. I weigh 145 lbs soaking wet and I didnt have any problems. IMO they weigh about 200 lbs(these were complete motors btw)


Read above statement. A stock t2 hood is fiberglass. So good luck shaving the weight down there. Taking out all unnecessary parts, that would include the ls1, that would shave alot of weight off.



My comments come directly from my buddy who has a V8 RX-7. He said the Rotary was heavy for how small it is. My weight came from some site online. I wasn't sure of the weight, so I looked it up.

The argument of reliability is still valid here though. I don't trust rotaries, I've seen too many break at the track, online, wherever. I still haven't personally seen an LS1 take a **** on someone when the motor was pushed. The same can't be said of any rotary motor.

I still don't see why some of the rotary guys hate the V8 conversion so much. It's a car, and someone puts a different motor in it of their choosing. Who cares? It's like the guys that cry about swapping the F20 out of my car for something else, since it's the VTEC god to some of the dorks out there. Whatever happened to custom fabbing mounts and putting the V8 set back farther. Therefore, pushing that weight back again and getting closer to a better weight distribution. Anything can be done if you have the know how and equipment...or money.

[sPrSw2o]

My comments come directly from my buddy who has a V8 RX-7. He said the Rotary was heavy for how small it is. My weight came from some site online. I wasn't sure of the weight, so I looked it up.

The argument of reliability is still valid here though. I don't trust rotaries, I've seen too many break at the track, online, wherever. I still haven't personally seen an LS1 take a *no cursing!* on someone when the motor was pushed. The same can't be said of any rotary motor.

I still don't see why some of the rotary guys hate the V8 conversion so much. It's a car, and someone puts a different motor in it of their choosing. Who cares? It's like the guys that cry about swapping the F20 out of my car for something else, since it's the VTEC god to some of the dorks out there. Whatever happened to custom fabbing mounts and putting the V8 set back farther. Therefore, pushing that weight back again and getting closer to a better weight distribution. Anything can be done if you have the know how and equipment...or money.

heavy for its size? its cast iron.

you just had three ppl explain why a lot of rotary owners hate the v8 swap. and we all said, "its your car, good luck". we told you flaws in the swap, we did not say not to do it.

the only lt1 rx7(fc) i've seen, the engine WAS mounted at the back of the engine bay. but it still FILLS the engine bay. Therefore, still moving weight up and forward.

[LSHatch]

heavy for its size? its cast iron.

you just had three ppl explain why a lot of rotary owners hate the v8 swap. and we all said, "its your car, good luck". we told you flaws in the swap, we did not say not to do it.

the only lt1 rx7(fc) i've seen, the engine WAS mounted at the back of the engine bay. but it still FILLS the engine bay. Therefore, still moving weight up and forward.

Ok, so they hate V8 swaps because it puts the engine up forward and messes up the weight bias of the car. I understand that, but many things can be done to counteract any of that. i.e. New swaybars, stiffer springs, removing unneeded weight from the front.

The RX7 I know of is running an older carbed 350. The motor sits pretty far back and doesn't seem to stick over the front cross member that much.

There may be flaws in the swap, but there are also flaws with keeping the Rotary. It really depends on what you want.

[SilverTurboRidin]

BTW To the poster who said his Stock N/A would keep up with a V8 powered rex i find your full of ****. Two people i know have now done the LS1 swap one went a little more drastic. First time at the track he ran a 12.1

The other guy who had his car prepped for 10's ended up only hitting 11.23

And yes V8 powered RX-7's are around, Just come to the car show's or hell go to some of the shop's i goto...you'll see.

[Driven]

I have a friend at Clemson who did the swap with a 302. His web site is: http://www.uglyduckracing.net/

Who says V8 rx7's can't be fun, watch some of his videos.

[FC3S4]

Heavy compared to what? A lima bean? I have held every part of a rotary engine in my hands, this includes the rotors, housings, exhaust mani, upper and lower intake mani's, turbo, and eccentric shaft. Those parts dont add up to 400 lbs. I have also pushed a S4 13bt and a 13brew accross the floor of a shop. I weigh 145 lbs soaking wet and I didnt have any problems. IMO they weigh about 200 lbs(these were complete motors btw)


Read above statement. A stock t2 hood is fiberglass. So good luck shaving the weight down there. Taking out all unnecessary parts, that would include the ls1, that would shave alot of weight off.



My comments come directly from my buddy who has a V8 RX-7. He said the Rotary was heavy for how small it is. My weight came from some site online. I wasn't sure of the weight, so I looked it up.

The argument of reliability is still valid here though. I don't trust rotaries, I've seen too many break at the track, online, wherever. I still haven't personally seen an LS1 take a *no cursing!* on someone when the motor was pushed. The same can't be said of any rotary motor.

I still don't see why some of the rotary guys hate the V8 conversion so much. It's a car, and someone puts a different motor in it of their choosing. Who cares? It's like the guys that cry about swapping the F20 out of my car for something else, since it's the VTEC god to some of the dorks out there. Whatever happened to custom fabbing mounts and putting the V8 set back farther. Therefore, pushing that weight back again and getting closer to a better weight distribution. Anything can be done if you have the know how and equipment...or money.

My comments come directly from me, not some guy who feeds me information that I post on the internet to sound smarter(ohh wait, that kinda describes you doesnt it?) The weight I said comes from experience. You dont trust rotaries, then dont buy one and you wont have to worry about it. As far as rotaries breaking, they do break, but so do all other motors. Ive seen a STOCK LS1 shoot a piston through its block.

When did I say i hate the v8 conversion. I DONT CARE WHAT HE DOES WITH HIS CAR!!!!! I wished him good luck. The only reason I came in here is because there are idiots like you spreading around wrong information. Push it back as far as possible and the weight distrubution still wont be equal to the rotary powered rx7.

There may be flaws in the swap, but there are also flaws with keeping the Rotary. It really depends on what you want.

How are there flaws with keeping the rotary? The car was designed for a rotary engine.

BTW To the poster who said his Stock N/A would keep up with a V8 powered rex i find your full of *no cursing!*. Two people i know have now done the LS1 swap one went a little more drastic. First time at the track he ran a 12.1

The other guy who had his car prepped for 10's ended up only hitting 11.23

And yes V8 powered RX-7's are around, Just come to the car show's or hell go to some of the shop's i goto...you'll see.


Wow you are an idoit. Look at what you have contributed to this thread. Absolutly nothing. My na fc was a real street killer. haha When did I ever say my old na was stock. There are more v8's then just you precious ls1. It was a mustang motor. It ran a 15.3 I ran a 15.7 I had a 3 tenths better reaction time then him so we were door to door the whole lenght of the track. He had trouble beating my old na(which wasnt stock).

[Freak Foot]

Yeah but how many people are really going to bother with an old 286 (thats what it was right?) if they're going to swap in a v8? Probably not too too many . . .

I can't recall myself, FC3S4, or sprsw2o having ever said a v8 rx7 couldn't make a fast drag car. They aren't just talking about drag racing.

I don't know why any of you v8 guys haven't brought up any of the pro's of the swap instead of arguing that the cons don't really exist.

With the right v8 you could have similar fuel consumption to a 13bt with more bottom end torque, predictable and immediate throttle response, and smooth power delivery (no sudden rush of boost). A v8 rx7 would probably feel a bit quicker in day to day driving. There are a lot more shops out there qualified to work with most v8's than there are people to work on rotaries (i.e. more convienant). Maybe you do your own work and prefer to work with v8's, maybe you prefer the exhaust sound of a lopey v8 to a John Deer on crack, maybe you want to make 400hp and dont feel like deeling with what a rotary needs to run there safely....yada yada yada.....

Those are all valid points (to which I'm sure others will give good counter points *ahem* sprsw2o, fc3s4 *ahem*)...so why are we still talking about weight? You pro-v8 guys can't win that argument.

Sorry to flip-flop between sides, but the v8rx7 wasn't quite getting a fair trial here (inadequate representation).

[Freak Foot]

I have a friend at Clemson who did the swap with a 302. His web site is: http://www.uglyduckracing.net/
:drag: cool stuff

[mazda6guy]

Nice vid of the 302 powered FB. :thumbup:

[LSHatch]

My comments come directly from me, not some guy who feeds me information that I post on the internet to sound smarter(ohh wait, that kinda describes you doesnt it?) The weight I said comes from experience. You dont trust rotaries, then dont buy one and you wont have to worry about it. As far as rotaries breaking, they do break, but so do all other motors. Ive seen a STOCK LS1 shoot a piston through its block.

When did I say i hate the v8 conversion. I DONT CARE WHAT HE DOES WITH HIS CAR!!!!! I wished him good luck. The only reason I came in here is because there are idiots like you spreading around wrong information. Push it back as far as possible and the weight distrubution still wont be equal to the rotary powered rx7.

How are there flaws with keeping the rotary? The car was designed for a rotary engine.




My info doesn't come from "some guy". He is my good friend, I was there while he did some of the swap. It's not some guy I just talk to. So your arrogant comment about me trying to sound smart on the internet just flew out the window. Get the stick out of your ass and chill out. This is a discussion, not a cry baby argument.

I have yet to spread any misinformation. I've posted ideas and counterarguments. Not just "oh the weight gets shifted forward, so it sucks." Like I stated, which is FACT, that can easily be counteracted with proper suspension setups.

My flaws, as stated if you actually would read are the reliability of the rotary, especially once they get heavily modded. So, before you come at me with personal attacks, why don't you actually read what has been posted. Thanks.

[FC3S4]

My info doesn't come from "some guy". He is my good friend, I was there while he did some of the swap. It's not some guy I just talk to. So your arrogant comment about me trying to sound smart on the internet just flew out the window. Get the stick out of your ass and chill out. This is a discussion, not a cry baby argument.

I have yet to spread any misinformation. I've posted ideas and counterarguments. Not just "oh the weight gets shifted forward, so it sucks." Like I stated, which is FACT, that can easily be counteracted with proper suspension setups.

My flaws, as stated if you actually would read are the reliability of the rotary, especially once they get heavily modded. So, before you come at me with personal attacks, why don't you actually read what has been posted. Thanks.


Your exact words were "my comments come from my buddy". Your "buddy" could be some little punk that cant even change his oil for all i know. So as far as im concerned he is "just some guy".

You have yet to spread any misinformation? You were the person that said that a rotary engines weight was 400lbs, which is wrong. Your ideas are wrong (remember replacing the fiberglass hood with a fiberglass hood? Yea good idea.)

OK now on to your flaws. Contrary to popular belief rotary engines can be very reliable to those that know what they are doing. And about how the extra weight of the ls1 can be counteracted by proper suspension setups. This is true, but an rx7 with a rotary inside will handle better than a v8 rx7 simply because ITS LIGHTER.

You can stop trying to save what little dignity you have left, that is unless you want me to beat it into the ground like i did with the rest of your "facts" and "ideas".

[FeeJ]

bicker bicker bicker

argue argue argue

am I the only one seeing this too??

not to pick on you 2, but its a trend im seeing

I think this thread needs to get locked if it doesnt start to become productive, we all know the basics of the big motor swap in place of the rotary, and what it causes in the characteristics of the car, yes the V-8 will make it heavier and throw the weight balance forward, yes it is more power reliably than a 13BT

[sPrSw2o]

i find it hard to believe that this extreme change in weight distr. and center of gravity can be "easily" counteracted. suspension mods are avialable regardless of whether its still got a rotary or not. this means that the v8 rx7 will always be the inferior handling vehicle. tons of companies have spent tons of money into finding good rates, ride heights, swaybar stiffness, etc... for a rotary powered rx7. how many companies have done real test + tuning for an ls1 equipped rx7?

your modifying the cars suspension to try to return it to the handling capability to that of a stock rx7. this must be done b4 the car makes any step forward in the handling area. IMO, this is gay.

[FC3S4]

bicker bicker bicker

argue argue argue

am I the only one seeing this too??

not to pick on you 2, but its a trend im seeing

I think this thread needs to get locked if it doesnt start to become productive, we all know the basics of the big motor swap in place of the rotary, and what it causes in the characteristics of the car, yes the V-8 will make it heavier and throw the weight balance forward, yes it is more power reliably than a 13BT


Its all in good fun :wiggle:

[LSHatch]

Your exact words were "my comments come from my buddy". Your "buddy" could be some little punk that cant even change his oil for all i know. So as far as im concerned he is "just some guy".

You have yet to spread any misinformation? You were the person that said that a rotary engines weight was 400lbs, which is wrong. Your ideas are wrong (remember replacing the fiberglass hood with a fiberglass hood? Yea good idea.)

OK now on to your flaws. Contrary to popular belief rotary engines can be very reliable to those that know what they are doing. And about how the extra weight of the ls1 can be counteracted by proper suspension setups. This is true, but an rx7 with a rotary inside will handle better than a v8 rx7 simply because ITS LIGHTER.

You can stop trying to save what little dignity you have left, that is unless you want me to beat it into the ground like i did with the rest of your "facts" and "ideas".

A lot of people on here know my "buddy who can't change his oil."

I didn't just quote that the motor weighed 400lbs. A website that sold rotary blocks did. So, cry to them.

I never said that an LS1 would handle better then a rotor powered rx. So, once again, stop the diareah of your mouth and putting it into mine. Thanks.

Save my dignity? Hahaha. Oh yeah, I'm really getting schooled here. :roll:

[mazda6guy]

Man I opened up a can of WORMS! Can we all just get along? :partyman:

[FC3S4]

[quote=FC3S4]
A lot of people on here know my "buddy who can't change his oil."

I didn't just quote that the motor weighed 400lbs. A website that sold rotary blocks did. So, cry to them.

I never said that an LS1 would handle better then a rotor powered rx. So, once again, stop the diareah of your mouth and putting it into mine. Thanks.

Save my dignity? Hahaha. Oh yeah, I'm really getting schooled here. :roll:


Ok so you buddy is popular, whats your point?
There is no "block" in a rotary motor, there are housings, rotors and the e shaft, and other small parts.
A website told you the motor weighed 400 lbs. It's very nice of you to give a link, or show some proof of some kind. But again as I said earlier your going off of what other people say, I'm going off of what ive seen, felt and done.

Man I opened up a can of WORMS! Can we all just get along? :partyman:

Man I'm enjoying myself, but it seems that lshatch has his panties in a bunch. :rofl:

BTW good luck with the swap

[Freak Foot]

No no no no, you're all wrong, it is MY penis that is the biggest. :finga: :banana:

[sPrSw2o]

your mother was a lizard, and v8 7's ARE gay.

[LSHatch]

Ok so you buddy is popular, whats your point?
There is no "block" in a rotary motor, there are housings, rotors and the e shaft, and other small parts.
A website told you the motor weighed 400 lbs. It's very nice of you to give a link, or show some proof of some kind. But again as I said earlier your going off of what other people say, I'm going off of what ive seen, felt and done.

Man I'm enjoying myself, but it seems that lshatch has his panties in a bunch. :rofl:

BTW good luck with the swap

Point is that people know what he is capable of and the he is not just some idiot. You understood completely what I meant by block, so don't try to make a smart ass comment.

I could give a link, but that means having to go back, look for it, copy it, and then recopy it here. Way too much work for me.

Sorry to burst your bubble, but I could care less about this thread. I'm just keeping it going. We both have only posted opinions either way. I like the V8 swap, you don't. You posted why you don't and I posted why I do.

[moorefire]

i find it hard to believe that this extreme change in weight distr. and center of gravity can be "easily" counteracted. suspension mods are avialable regardless of whether its still got a rotary or not. this means that the v8 rx7 will always be the inferior handling vehicle. tons of companies have spent tons of money into finding good rates, ride heights, swaybar stiffness, etc... for a rotary powered rx7. how many companies have done real test + tuning for an ls1 equipped rx7?

Yea I guess since no one has made an LS1 RX7 susp setup then it must not be possible :roll:

your modifying the cars suspension to try to return it to the handling capability to that of a stock rx7. this must be done b4 the car makes any step forward in the handling area. IMO, this is gay.

No one gives a **** about your narrow minded opinion. Keep it to yourself nex time you feel like craping on someones goals for thier project.

[sPrSw2o]

i find it hard to believe that this extreme change in weight distr. and center of gravity can be "easily" counteracted. suspension mods are avialable regardless of whether its still got a rotary or not. this means that the v8 rx7 will always be the inferior handling vehicle. tons of companies have spent tons of money into finding good rates, ride heights, swaybar stiffness, etc... for a rotary powered rx7. how many companies have done real test + tuning for an ls1 equipped rx7?

Yea I guess since no one has made an LS1 RX7 susp setup then it must not be possible :roll:

your modifying the cars suspension to try to return it to the handling capability to that of a stock rx7. this must be done b4 the car makes any step forward in the handling area. IMO, this is gay.

No one gives a *no cursing!* about your narrow minded opinion. Keep it to yourself nex time you feel like craping on someones goals for thier project.

hey d0uchebag. this thread was started asking for opinions. unless you have something worth contributing to this thread, dont waste the bandwidth w/ your pitiful attempt at bashing me.

i never said a proper suspension couldnt be made. i said that engineers/companies have spent big money finding what works w/ an rx7. if someone (not a company. just an everyday someone) wanted to be as effective as possible w/ there supsension for a v8 7, it would be nearly impossible to do SERIOUS testing. for example, having springs made w/ custom rates isnt cheap, so test and tuning this way is sorta out of the question.

[FC3S4]

Ok so you buddy is popular, whats your point?
There is no "block" in a rotary motor, there are housings, rotors and the e shaft, and other small parts.
A website told you the motor weighed 400 lbs. It's very nice of you to give a link, or show some proof of some kind. But again as I said earlier your going off of what other people say, I'm going off of what ive seen, felt and done.

Man I'm enjoying myself, but it seems that lshatch has his panties in a bunch. :rofl:

BTW good luck with the swap

Point is that people know what he is capable of and the he is not just some idiot. You understood completely what I meant by block, so don't try to make a smart ass comment.

I could give a link, but that means having to go back, look for it, copy it, and then recopy it here. Way too much work for me.

Sorry to burst your bubble, but I could care less about this thread. I'm just keeping it going. We both have only posted opinions either way. I like the V8 swap, you don't. You posted why you don't and I posted why I do.

You should have stated your point earlier, "not just say I have a buddy who did the swap and people here are friends with him"

I'm sorry your too lazy to put up a link, and show any kind of proof of what you said.

Obviously you care enough about this thread to keep it going.

You posted your opinoins, and then I shot them down and posted my own opinions which are still standing. haha

And about ot caring about this thread, I stated a long time ago I could care less what the original poster does with his car. He asked for opinions and I posted my opinions and dispelled the opinions like yours based on myths.

[wonner]

Read above statement. A stock t2 hood is fiberglass. So good luck shaving the weight down there. Taking out all unnecessary parts, that would include the ls1, that would shave alot of weight off.



I hate to be a prick here, but stock T2's came with either steel or aluminum hoods. But being a fellow FC owner, I love the rotary engine. I think Mazda put it in there for a reason. And people think rotaries are unreliable because they sometimes aren't properly maintained. Rotary engines require specific care and maintenance. With the proper care, a rotary can last just as long as a piston engine.

[LSHatch]

You should have stated your point earlier, "not just say I have a buddy who did the swap and people here are friends with him"

I'm sorry your too lazy to put up a link, and show any kind of proof of what you said.

Obviously you care enough about this thread to keep it going.

You posted your opinoins, and then I shot them down and posted my own opinions which are still standing. haha

And about ot caring about this thread, I stated a long time ago I could care less what the original poster does with his car. He asked for opinions and I posted my opinions and dispelled the opinions like yours based on myths.

I don't need to justify myself to some kids on the internet. I don't care, it doesn't effect my life whatsoever.

I don't care about this thread. I keep it going, that doesn't mean I give two ****s about it. Unlike "Mr. let me make personal attacks at people over the internet." I'm not getting butt hurt over this like some of you.

Yes, your opinions are standing, while mine are also.

My opinions based on myth? Hahahahha. I guess so.

I hate to be a prick here, but stock T2's came with either steel or aluminum hoods.

Hahahahahhahahahaahahahahahah!!!!!!!

[FeeJ]

weren't all T2 hoods AL?? maybe i was misinformed there
N/A hoods could be either steel or AL though pending on model or whatever.

funny how talking about engineering changes in the FC, I was replacing my calipers and upgrading to some SS lines yesterday and talking about putting in the DTSS eliminators, and that started a nice big discussion about changing the engineers initial plans and whatnot, but the DTSS mod is a fairly common one that really does throw a whole lot of engineering to waste.
It was a good thing I could laugh about it as a mechanical engineer too, that some stupid schmuck can take this hardcore complex tri-axial floating hub I could design and make it go to waste with a $40 bushing lol :finga:

Whenever you modify a car you are basically changing a lot that the original engineers set it as, so if anyone complains about that on this board you seem confused, but yeah im done sharing my story, I'm just happy I finally worked on my dying brakes and did some upgrade to my car lol

[sPrSw2o]

I hate to be a prick here, but stock T2's came with either steel or aluminum hoods.
weren't all T2 hoods AL?? maybe i was misinformed there.

wrong. tII hoods are fiberglass. have you two ever seen/lifted one in person? ^these statements are reasons why ppl get flamed so often on the internet. misinforming others.....

I hate to be a prick here, but stock T2's came with either steel or aluminum hoods.

Hahahahahhahahahaahahahahahah!!!!!!!

you wonder why you get so much crap from ppl. your so easily misinformed by ppl.

But being a fellow FC owner, I love the rotary engine. I think Mazda put it in there for a reason. And people think rotaries are unreliable because they sometimes aren't properly maintained. Rotary engines require specific care and maintenance. With the proper care, a rotary can last just as long as a piston engine.

hate to be a prick, but this is wrong too. rotary engines are great. they havent proven to be unreliable when properly maintained. they simply dont live as long as piston engines. you show me one 13bt that lasted 200k miles, and ill show you thirty turbo 4cyl's that have done the same.

[LSHatch]

you wonder why you get so much crap from ppl. your so easily misinformed by ppl.




No, and no. But, thanks for playing.

[LSHatch]

Oh, and a 13b weighs almost 300lbs without trans.


http://lancaironline.net/Lists/flyrotary/Message/3548.html

So, you would stop crying that I am not posting fact. Where I still have yet to see either of you have any backup to your claims.

Thanks.

[FeeJ]

I hate to be a prick here, but stock T2's came with either steel or aluminum hoods.
weren't all T2 hoods AL?? maybe i was misinformed there.

wrong. tII hoods are fiberglass. have you two ever seen/lifted one in person? ^these statements are reasons why ppl get flamed so often on the internet. misinforming others.....

I hate to be a prick here, but stock T2's came with either steel or aluminum hoods.

Hahahahahhahahahaahahahahahah!!!!!!!

you wonder why you get so much crap from ppl. your so easily misinformed by ppl.

But being a fellow FC owner, I love the rotary engine. I think Mazda put it in there for a reason. And people think rotaries are unreliable because they sometimes aren't properly maintained. Rotary engines require specific care and maintenance. With the proper care, a rotary can last just as long as a piston engine.

hate to be a prick, but this is wrong too. rotary engines are great. they havent proven to be unreliable when properly maintained. they simply dont live as long as piston engines. you show me one 13bt that lasted 200k miles, and ill show you thirty turbo 4cyl's that have done the same.


stock hoods are not fiberglass, not on any RX-7, definitly not any FC, yes I have seen stock T2 hoods, theyre light because theyre AL, I'm not positive if all are, but pretty sure they were, along with the 'vert's also. Even some N/A FC's came with AL hoods
The only way you're getting a fiberglass hood is an aftermarket piece

I agree with you that the rotary is not unreliable, that it just takes different maintenance than a piston, but it is very easy to find 30 more turbo 4's that lasted as long as a 13BT because there have been that many more produced, so a better show would be percentages of 13BT's that have lasted as a portion of all 13BT's produced and the same for turbo 4's

So longevity and reliability of ANY motor comes simply down to maintenance and care of the motor

and as an MR2 owner what gives you this expertise in mazda's??
you just seem to be putting down every idea put out there because you don't like them, if the original thread writer wanted to here that "V8 RX-7's are GAY" he wouldve went to a trailer park and asked some redneck their opinion.
He was coming here looking for some constructive criticism; you know help, suggestions, tips, not having him and his car's sexuality questioned when he wants to build a one-off unique car that will earn some respect once its finished if he does it well

you're too bull-headed and stubborn to just let it go already, so I'll be waiting for your return flame, but stfu with calling everyone douchebags and morons because they dont share your perspective.

back to a constructive thread....
any updates on the swap yet?? or still waiting for the motor and tranny to come around?

[wonner]

wrong. tII hoods are fiberglass. have you two ever seen/lifted one in person? ^these statements are reasons why ppl get flamed so often on the internet. misinforming others.....








http://www.rx7club.com/showthread.php?t=433792&highlight=aluminum+hood
Wrong. Try doing a little research before you claim that I am misinforming people.

[wonner]

stock hoods are not fiberglass, not on any RX-7, definitly not any FC, yes I have seen stock T2 hoods, theyre light because theyre AL, I'm not positive if all are, but pretty sure they were, along with the 'vert's also. Even some N/A FC's came with AL hoods
The only way you're getting a fiberglass hood is an aftermarket piece

I agree with you that the rotary is not unreliable, that it just takes different maintenance than a piston, but it is very easy to find 30 more turbo 4's that lasted as long as a 13BT because there have been that many more produced, so a better show would be percentages of 13BT's that have lasted as a portion of all 13BT's produced and the same for turbo 4's

So longevity and reliability of ANY motor comes simply down to maintenance and care of the motor

and as an MR2 owner what gives you this expertise in mazda's??
you just seem to be putting down every idea put out there because you don't like them, if the original thread writer wanted to here that "V8 RX-7's are GAY" he wouldve went to a trailer park and asked some redneck their opinion.
He was coming here looking for some constructive criticism; you know help, suggestions, tips, not having him and his car's sexuality questioned when he wants to build a one-off unique car that will earn some respect once its finished if he does it well

you're too bull-headed and stubborn to just let it go already, so I'll be waiting for your return flame, but stfu with calling everyone *no cursing!* and morons because they dont share your perspective.

back to a constructive thread....
any updates on the swap yet?? or still waiting for the motor and tranny to come around?

Amen, brother

[sPrSw2o]

stock hoods are not fiberglass, not on any RX-7, definitly not any FC, yes I have seen stock T2 hoods, theyre light because theyre AL, I'm not positive if all are, but pretty sure they were, along with the 'vert's also. Even some N/A FC's came with AL hoods
The only way you're getting a fiberglass hood is an aftermarket piece

I agree with you that the rotary is not unreliable, that it just takes different maintenance than a piston, but it is very easy to find 30 more turbo 4's that lasted as long as a 13BT because there have been that many more produced, so a better show would be percentages of 13BT's that have lasted as a portion of all 13BT's produced and the same for turbo 4's

So longevity and reliability of ANY motor comes simply down to maintenance and care of the motor

and as an MR2 owner what gives you this expertise in mazda's??
you just seem to be putting down every idea put out there because you don't like them, if the original thread writer wanted to here that "V8 RX-7's are GAY" he wouldve went to a trailer park and asked some redneck their opinion.
He was coming here looking for some constructive criticism; you know help, suggestions, tips, not having him and his car's sexuality questioned when he wants to build a one-off unique car that will earn some respect once its finished if he does it well

you're too bull-headed and stubborn to just let it go already, so I'll be waiting for your return flame, but stfu with calling everyone *no cursing!* and morons because they dont share your perspective.

back to a constructive thread....
any updates on the swap yet?? or still waiting for the motor and tranny to come around?

try doing what i did. go outside and knock on the hood of the 10th anniversary sitting in the driveway. tell me if it sounds like metal. if T2 hoods are aluminum, my bad. learn something new everyday.

i have no expertise in rx7's. i never claimed that. however, i have done minor work on FC's and lots of research since i got my license. im not too bullheaded to admit to any advantages of a v8 or a rotary in a seven. the only person that actually posted real advantages was freak foot. i did not try shooting down any of his ideas, b/c he backed them up and made valid points. NO ONE ELSE IN THIS THREAD stated any other advantages. they all tried SHOOTING DOWN what I said. for example, i said poor handling; they said suspension upgrades; i said how much testing and guessing it would take for a proven setup. the only ideas i put down were ones that were wrong, like a 13bt weighing 400lbs, etc... ls1 rx7's used to be unique one-offs. now arent there kits?

i came and gave my opinion first:

v8 rx7's are GAY

i then backed it up w/ a reason:

rx7's were not designed for straight line performance. pulling the rotary and throwing in an anchor takes from the designs of the car, therefore ruining the car. this makes it GAY.

he didnt ask for constructive criticism, merely opinions. ppl got offended all the opinions werent "sweet" or "awesome".

and about the rotary reliability thing: reliability and longevity/lifespan are two completely different things. reliability is defenately in direct relation to upkeep and maintenance. longevity is not. it can be a reliable motor, but its life expentancy is short. to make a more even number of turbo 4's vs. turbo rotaries (for the sake of our comparison), do some research on average life span of a 3sgte and compare it to the average life span of a 13bt/13brew. it still shows the much shorter life of the rotary.

[mazda6guy]

Here is an update on the project. I am in the process of rebuilding the GM 700R4 tranny. I am just waiting on Summit to send the rebuild kit. It should be here tommorrow. I am also going with a brand new 350 motor from Summit so reliability will not be an issue for me. :thumbup:

[95nracer]

I'm not even going to get into this thread.

All I have to say is a driven 7 is better than a broken 7 even if it has a V8 in it.

It up to a person what they want to do with there car.

Good luck on your rebuild. :thumbup:

[moorefire]

MODS: Please delete

(Why the **** can't I delete my own posts?)

[moorefire]

haha I'm the d0uchebag but your first post was (with out any explanation):

v8 rx7's are GAY

since you're all-knowing and you know what this guys testing and development budget is or if he even gives a crap how the car handles I might as well shut up

stay in school son

[sPrSw2o]

haha I'm the d0uchebag but your first post was (with out any explanation):

go down another two or so posts for my reasoning. i stated that in my last post. reading comprehension.....

since you're all-knowing and you know what this guys testing and development budget is or if he even gives a crap how the car handles I might as well shut up.

stay in school son

havent we already acknowledged that im not all-knowing? i never said he couldnt afford this swap/suspension. all i said was that, to be done CORRECTLY (proven), it would take a lot of money. if he doesnt care about the cars ability to turn, im sure he can simply disregard my statements w/ out your help. once again, waste bandwidth somewhere else please.

and since your on the subject of school. i started my new class today, and there just happens to be a guy who plans on swapping an ls1 into his fc as his class project. if i can, ill get my hands in and help him out. see if i dont learn something else new.....

[moorefire]

haha I'm the d0uchebag but your first post was (with out any explanation):

go down another two or so posts for my reasoning. i stated that in my last post. reading comprehension.....

If you're gonna act like a d0uche, you better back it up with reasoning right then and there, not after someone calls you out for being a d0uche

havent we already acknowledged that im not all-knowing? i never said he couldnt afford this swap/suspension. all i said was that, to be done CORRECTLY (proven), it would take a lot of money. if he doesnt care about the cars ability to turn, im sure he can simply disregard my statements w/ out your help. once again, waste bandwidth somewhere else please.

In a street car "CORRECTLY" is subjective. If hes not building a track car that needs 50/50 weight bias and every ounce shaved, then who the **** cares. Anyone that says they drive at 9/10ths (making perfect handling nessicary) all the time on the street is a liar, and assuming that you NEED a perfectly balanced car to enjoy it is retarded. So it was really you wasting bandwidth crapping on someones gaols for their project because your ideal street car is unrealistic.


and since your on the subject of school. i started my new class today, and there just happens to be a guy who plans on swapping an ls1 into his fc as his class project. if i can, ill get my hands in and help him out. see if i dont learn something else new.....

good, I hope you do

but you should really learn some respect

[sPrSw2o]

If you're gonna act like a d0uche, you better back it up with reasoning right then and there, not after someone calls you out for being a d0uche well, thats your own flawed opinion. i gave my opinion.... and when confronted about it, i explained it.



In a street car "CORRECTLY" is subjective. If hes not building a track car that needs 50/50 weight bias and every ounce shaved, then who the *no cursing!* cares. Anyone that says they drive at 9/10ths (making perfect handling nessicary) all the time on the street is a liar, and assuming that you NEED a perfectly balanced car to enjoy it is retarded. So it was really you wasting bandwidth crapping on someones gaols for their project because your ideal street car is unrealistic.

first, when a car is balanced 50/50, there is no front or rear bias. who are you to say that he doesnt care what his car handles like? what if its not ONLY to drive daily? maybe it'll see a road course once or twice. i never mentioned that 50/50 was "NEEDED" to enjoy a street car. (i drive an mr2.... no where near 50/50 balance). we already accomplished that its near 50/50 weight distrbution will be lost. I dont assume that this great balance is necessary, so you can leave the "you dont need 50/50" argument alone now. of course he could have fun, even w/ its horrible distribution. but maybe what he loves most about the car as it stands is how positive it feels when cornering. im sure he'll miss it. and getting it back to that will be very tough.

but you should really learn some respect

i show plenty of respect where its due. but thanks for being that "mature adult figure" :roll:

[moorefire]

If you're gonna act like a d0uche, you better back it up with reasoning right then and there, not after someone calls you out for being a d0uche well, thats your own flawed opinion. i gave my opinion.... and when confronted about it, i explained it.
Next time have some balls and explain yourself instead of shouting insults and running like a little child.


first, when a car is balanced 50/50, there is no front or rear bias.

No really?:roll:

who are you to say that he doesnt care what his car handles like?[/qoute]

Well its a reasonable assumption to make that handling isn't a high priority. Generally, people that put V8s into little cars aren't too worried about handling

what if its not ONLY to drive daily? maybe it'll see a road course once or twice.

Then he'll just have to live with his compromise. You seem to just enjoy insulting his intelligence by pointing out the obvious.

i never mentioned that 50/50 was "NEEDED" to enjoy a street car. (i drive an mr2.... no where near 50/50 balance). we already accomplished that its near 50/50 weight distrbution will be lost. I dont assume that this great balance is necessary, so you can leave the "you dont need 50/50" argument alone now.

hahaha, You just completly contradicted your original argument; that messing with the design (and balance) somehow makes the car gay.

By your reasoning, your car, every FF car, **** everything thats not MR is gay straight from the factory.


of course he could have fun, even w/ its horrible distribution. but maybe what he loves most about the car as it stands is how positive it feels when cornering. im sure he'll miss it. and getting it back to that will be very tough.

Now if you would have respectfully made that point originally and not acted like some punk kid in the sandbox we could have avoid all this couldn't we.

[quote=moorefire]but you should really learn some respect

i show plenty of respect where its due. but thanks for being that "mature adult figure" :roll:

YoUr WeLcOmE :roll:

[sPrSw2o]

had i ran "like a child", i wouldnt have returned........ so lets put this lame **** down okay?

"If hes not building a track car that needs 50/50 weight bias and every ounce shaved..."- you, i was just correcting you. theres no such thing as 50/50 weight bias.

you shouldnt make assumptions. you dont know his plans...

i never tried insulting his intelligence, just said how tough it would be to get a proper handling car out of a v8 fb.

how exaclty did i contradict my original argument? IMO, its gonna ruin the cars purpose, and be gay. but its not my car, good luck to him.

"By your reasoning, your car, every FF car, *no cursing!* everything thats not MR is gay straight from the factory. "- you

^that doesnt make sense. try again.

respectfully made what point? i think its clear that he feels he can have fun w/ this setup, or else this thread wouldnt exist. i hope you could figure this out on your own.

[the mike]

I am ----><----- this close to locking this thread guys. Either offer up helpful advice, or take this bickering to PM.


Lets keep the opinions out of this one, 5 pages is enough.

Thank You,


mike

[sPrSw2o]

this thread was FOR opinions.....

[the mike]

WAS.

He already said he was going through with it. Now it's time for useful info.

[mazda6guy]

Well I met a guy from torquecentral today at lunch and his car is amazing. His is a 1984 FB with a supercharged SBC 350. He had a couple of timeslips and his best time was a high 10 seconds in the 1/4 mile. He is also running 550 horsepower on his factory differential with 15 inch raceslicks. So I am coming to the assumption that anything is possible as long as there is some pre planning involved. Thats what I was hoping to get from this thread and not a whole lot of flaming going on. Or maybe even a little help from you guys and gals on this board since we are all suppose to be true automobile enthusiasts. It is cool I learned a valuable lesson from all this. NEVER ASK FOR OPINIONS! Some of you did help me out so I just want to say thank you and hopefully the finished project will be at a meet real soon. :supz:

[wonner]

Good luck on the FB conversion - big V8+small FB= :jawdrop:
BTW I only stuck up for the rotary because I own one and I believe it is the "soul" of the car; how do you think a WRX owner would feel about a V8 swap in a WRX :furious: Having said that,I'm done with the topic and I wish you nothing but the best. Keep us updated on your progress :thumbup:

[sPrSw2o]

yes... good luck. keep us updated, and ask all the questions you've got. im sure with all these ppl that see things from such different angles, you'll get more than enough response.

[FC3S4]

BTW T2 hoods were aluminum, not fiberglass like i stated earlier. (although the point doesnt really change, its still very lightweight)

And some t2's do have steel hoods, although it is very rare and mostly in seriers 4 (S4) fc's. This is because the car sold so well mazda came upon a shortage of aluminum, so they had to use steel.


Well I met a guy from torquecentral today at lunch and his car is amazing. His is a 1984 FB with a supercharged SBC 350. He had a couple of timeslips and his best time was a high 10 seconds in the 1/4 mile. He is also running 550 horsepower on his factory differential with 15 inch raceslicks. So I am coming to the assumption that anything is possible as long as there is some pre planning involved. Thats what I was hoping to get from this thread and not a whole lot of flaming going on. Or maybe even a little help from you guys and gals on this board since we are all suppose to be true automobile enthusiasts. It is cool I learned a valuable lesson from all this. NEVER ASK FOR OPINIONS! Some of you did help me out so I just want to say thank you and hopefully the finished project will be at a meet real soon. :supz:


And no offense but I doubt there are any stock parts in that entire drivetrian (diff. included). It was made to support at most 135 bhp and 133 torque. I doubt it would be able to handle 4 times that amount of power.

[mazda6guy]

Well FC3S4 that guy I met today made me a believer. He had a stock GSL diff and a 200R4 tranny with no mods but his next mod is a 8.8 ford diff just for he can tune the FB for more HP's. I plan on going with a 8.8 ford diff because it requires no fabbing of the stock suspension. I will keep posting updates of the projects. :supz:

[Zeropistonz]

The Rotary community affectionatly calls this transformation, "the dark side" But good luck none the less. Should really kick some ass when its finished!

[poolmike]

Enough of this crap already. A perfect balance to this car is some pimp daddy Caddy power. Find yourself a wrecked Caddy with a fresh Northstar engine... bolt it to the GM transmission of your choice and haul ass. Those engines are small, lightweight, RELIABLE, and powerful with a great aftermarket following.

On that note, I have a 500 cubic inch Caddy engine that is just beggin' to be installed in something silly like an rx-7 or 280z.

[sPrSw2o]

Oh, and a 13b weighs almost 300lbs without trans.


http://lancaironline.net/Lists/flyrotary/Message/3548.html

So, you would stop crying that I am not posting fact. Where I still have yet to see either of you have any backup to your claims.

Thanks.

that link shows that the engine, b4 lots of random stuff like: starter, radiator, alternator, exhaust piping; was under 250 lbs. it stated that the engine itself, no manifolds, was only 218 lbs. thats light as hell.

[Zeropistonz]

i can't tell you how light it is exactly... but a friend and I easily picked up mine and carried it into my basement.... and that was w/ all the accessorys on.

[LSHatch]

that link shows that the engine, b4 lots of random stuff like: starter, radiator, alternator, exhaust piping; was under 250 lbs. it stated that the engine itself, no manifolds, was only 218 lbs. thats light as hell.

Well, I don't really consider an engine an engine without anything on it. It won't work in a car without all of that stuff.

[Freak Foot]

that link shows that the engine, b4 lots of random stuff like: starter, radiator, alternator, exhaust piping; was under 250 lbs. it stated that the engine itself, no manifolds, was only 218 lbs. thats light as hell.

Well, I don't really consider an engine an engine without anything on it. It won't work in a car without all of that stuff.

Is the 500 lb. weight someone mentioned for an ls1 earlier a weight with or with out accesories?

[LSHatch]

Not sure. I'll have to check again.

[SilverTurboRidin]

a N/A LS1 weighs 480LBS (includes header's, air cleaner,power steering pump, transaxle adapter, flywheel, clutch, and pressure plate.)

PLUS A OLD SCHOOL RX WITH A LS1 SWAP!!!!
http://www.cardomain.com/ride/763434

And i quote from his cardomain.
"The all alluminum LS1 is actually lighter than the cast iron turbo rotory engine it replaced"

[sPrSw2o]

a N/A LS1 weighs 480LBS (includes header's, air cleaner,power steering pump, transaxle adapter, flywheel, clutch, and pressure plate.)

PLUS A OLD SCHOOL RX WITH A LS1 SWAP!!!!
http://www.cardomain.com/ride/763434

And i quote from his cardomain.
"The all alluminum LS1 is actually lighter than the cast iron turbo rotory engine it replaced"

so in reality, all those posters screaming "ROTARIES ARE HEAVY" were just running there mouths? the ls1 seems to be TWICE as heavy.

[LSHatch]

For being 300lbs just motor with your basic stuff on it, and for how small it is. A rotary is heavy. And that is going with just a non turbo motor. A TII motor will be much heavier because of the turbo, intercooler, piping, etc. So, there you have it.

I said in the very beginning an LS1 weighs around 500lbs.
Maybe we should all change our facts to one's like yours.

"I've pushed a rotary motor."
"I think they are light."
"I've never driven a 350 RX7."
"I have yet to post any kind of link to support my claims."
"I just make personal attacks to make it seem like I'm right."

Happy??

[mazda6guy]

The weight of the motor is not really a major issue because the 330 Horsepower is going to compensate for it. The FB is still goign to be light for the application and i plan on keeping all the interior in the car. The 350 HO motor is going to make my FB fly along with the 3.93 gears in the rear end and the first gear in a 700R4 tranny. PArts are coming in by the boatloads now I just need to stop working so much OT to have time for the swap. :supz:

[sPrSw2o]

For being 300lbs just motor with your basic stuff on it, and for how small it is. A rotary is heavy. And that is going with just a non turbo motor. A TII motor will be much heavier because of the turbo, intercooler, piping, etc. So, there you have it.

I said in the very beginning an LS1 weighs around 500lbs.
Maybe we should all change our facts to one's like yours.

"I've pushed a rotary motor."
"I think they are light."
"I've never driven a 350 RX7."
"I have yet to post any kind of link to support my claims."
"I just make personal attacks to make it seem like I'm right."

Happy??

you still refer to it as "300lbs" even though i just told you that its NOT that much. 300 lbs includes things like exhaust piping, starter, ecu, and alternator. as said, the actual motor is under 250lbs. find out the actual weight of the ls1, and what it includes b4 making any more claims please.

[LSHatch]

Why don't you read up about 5 posts and Silverturboridin posted what it is. Thanks.

[sPrSw2o]

so what we're agreeing on is that the rotary weighs roughly half as much as the ls1?

[SilverTurboRidin]

Mazda rotary 2 rotor, 285lbs
Mazda rotary 3 rotor, 480lbs
The weights below are based on motors ready to install into the car. This means the motor has headers, air cleaner, power steering pump, turbo and intercooler (where noted), transaxle adapter, flywheel, clutch, and pressure plate.

[Zeropistonz]

Why is everyone arguing? :screwy:

[mazda6guy]

I am am the last to argue. I am saving all that for when I actually doing the swap. Most of the V-8 RX-7 peeps say that it is easy but I know better. Everything dealing with mechanics is a project. I even ordered a new welding outfit just in case I run into a stubborn bolt or nut. I never knew so many people on this board are rotor headz? Amazing! :thumbup:

[Jokiesmurf]

Good luck. I'm a rotory fan.Allways wanted a 13b (prerriterial) wrote it in spanish. cause it rev up to 13000 to 14000 rpm's. But also falled on love with this 86 rx-7 with a Grand National engine in it The guy was from Philly The car name was Milady. He used to street race at Delaware ave & Castor ave back in the days.

[2001orangess]

i didn't read the whole post, but here's a guy in nj who did the swap and he also road races.


http://www.ponycars.net/rx7.htm


on the bottom click on the link that says "Click here for pics, video and info "

[freddietvo]

The more i read this me more i realize i don't know shi%. THis is great

[Nick13b]

Personally I'd swap a 13B-REW into an FB...Lots of potential for power even in its stock form...and you're still keeping the rotary spirit alive.


which are why rx7's are so cool and unique in the first place.


but a v8 FD looks and sounds mean as hell.

[Sid]

Torque!!!!!!!!!!!!!!!!!!!!!!!!!

[capaGC8]

how can anyone argue about this when there's plenty of proof supporting the facts?

just pick up the USCC issue of SCC - there's a hybrid rx7 in the contest this year and it goes into a little detail.

facts:
- LS1 is only slightly heavier than the 3rd gen 13b, most of the additional weight comes from the 6 spd transmission and beefier rear end. (this evens out weight distribution)
- LS1 can be mounted in just about the same spot as the 13b rotary since the SBC has been condensed as it's aged.
- the rx7 has amazing similarity to a c5 vette, but has the ability to shed more weight.

the only problem with this swap is how much fabrication is involved, but it's still the most potent value combo anyone could come up with.

[95nracer]

Na, no thanks I'll still stick to my rotary.

Doesn't matter how much people argue. There going to run what they want to run.

[ROTARYROCKET7]

To all my fellow rotor headz I need your opinion. I was thinking about doing an V-8 conversion on my FB. What is your opinions and advice on this. I was thinking about going with a Chevy 350 along with a 700R4 tranny. Yes this car would be for the drag strip plus a daily commuter to and from work. I have plans of buying a TII in a couple of months so I still love the almighty Wankel! :mrgreen:

Piston powered Rotary powered car, thats not cool dude how can you think of something so disgusting as that. Its rotary keep the rotary love around, who needs a friggin v-8, were a few already, why mess it up with more pistons.

I dont like pistons, rotaries ONLY Baby

[mazda6guy]

Like I said before I love the rotary but I am ready for a new project that is almost complete and something different. Hopefully around tax time I will have everything up and running for the strip and now SoloII.

[Zeropistonz]

Piston powered Rotary powered car, thats not cool dude how can you think of something so disgusting as that. Its rotary keep the rotary love around, who needs a friggin v-8, were a few already, why mess it up with more pistons.

I dont like pistons, rotaries ONLY Baby


^ This guy kicks ass! lol

[bsteimel]

^ This guy kicks ass! lol

:iagree:

Keep the rotary spirit alive. Get a 20b turboed engine that would be bad a**.

Even still, take some pictures if you decide to go with the ls1 swap.

[wgknestrick]

Thank god this is still the only forum left without pointless arguing........uh oh.:mad:

Arguing without teaching is pointless.

[4g4d4u]

my evo runs 12.6 in the quarter mile bone stock.

[2MCHPWR]

its funny how this same topic is in every car forum.
i love my rx7 with ls1. it has better weight distribution than my friends stock rx7 but weighs only 15 lbs more (it would been more but i removed ac and ps and abs - although abs is back in now). i autocross a lot, and i beat every rx7 fd that has been there. my friend races his stock fd with scca at the nationals, and i beat him. and he loves my car, as do all the rotary guys that i give a ride too. so it handles insane and is fast as hell too.

videos - right click, save as.
from last week, drag racing at atco:
http://209.177.55.37/video/atco102306.wmv

autocross and weighing the car on corner scales:
http://209.177.55.37/video/AX.wmv

hpde/road race at pocono with stock suspension (now has coilovers):
http://209.177.55.37/video/poclong_0002.wmv

http://209.177.55.37/images/rx7/ax/images/IMG_4121.jpg

http://209.177.55.37/images/rx7/ax/images/IMG_4122.jpg

http://209.177.55.37/images/rx7/IMG_3023.jpg

http://209.177.55.37/images/rx7/IMG_3014.jpg

my car is 50.5% front, 49.5% rear, 2730 lbs total.
my friends stock rx7 is 53% front, 47 rear, 2715 total.
my engine is old design 370 LS1 stroker, tiny cam, 398 hp, 410 tq.

[wonner]

my car is ... 2730 lbs total.
my friends stock rx7 is ...2715 total.


A-ha! The rotary IS superior!! :wink:

[FuzzyMD]

suprsingly no one has mentioned about this site, anyway

http://www.hinsonsupercars.com/faqFC.htm


also couple good Ls1 Rx7 swap forums

http://www.torquecentral.com/index.php?

http://www.swapcartech.com/forum/index.php

[su_maverick]

Wow, I know I am bringing an old thread back from the dead but I have never heard so much mis-information and ignorance from some people in my life.

I am not bashing the rotary faithful who want to keep the engines they came with but some of you are pulling numbers and engineering principals out of your collective rears. This seems like a very good case of "if you dont know what you are talking about, shaddup."

[NOPSTNS]

im not scannin thru 6 pages or arguing, but just to be safe, su mav was i rambling in this thread at all? if so lemme kno where so i can read it,apologize, and then wish i could delete it! haha


just kidding...but seriously, check it....

[screamingdsm]

Rotaries are amazing motors, if you know what your doing you can go very fast. I have friends with both v8 and rotary...the one thing i love about a v8 rx7 or any smaller import is the fact of its reliablity...a mild bolt on ls1 will go deep into the 11s if not 10s in a rex. Its alot of blood sweat and tears into a rotary.... both will break, but rotarys should have hour meters not odometers.more power to who ever but on a go fast cheap, reliablity stand point....beat the crap out of it and drive grandma to the food store.

[su_maverick]

NOPSTNS- Na, dont think you were a part of the nonsense in there

I have no problem with rotaries what so ever. I think they are great motors too but I just dont think that there is enough development behind them yet to make a turbo rotary a good OEM option on a car. The point I was making was that it is people who blindly make up facts or repeat drivel that they heard from someone else who doesnt know what they are talking about that annoys me. This is for both rotaries and ls1 swaps.

Anyway

/Rant

If anyone wants to see what the differences are between LS1 7's and Rotary 7, a couple of us FD owners (rotary and ls1) are starting to have get togethers at Giant's Stadium for auto-x's. Come out and judge for yourself.

[dragonfly2k3]

this thread fails, its a cool idea and i think you should go for it. Rotarys blow.