B18 Build up!!

[boostme05]

i own a 1995 acura integra ls.. with the b18b1... since its my daily driver i really cant just take it off the road and rip out the motor to build it... so i got a b18a1...out of a 1993 acura integra... will i have any trouble swapping this motor into my car after i build it up.. or will it not work right in my car?...

[boostme05]

whats the difference between a b18b1 and the b18a1?

[SilverTurboRidin]

Both USDM non-vtecs that produce roughly 140hp....

Just build a LS/vtec

[boostme05]

i know im going to forge the internials on it with all new pistons rods rings all new bearings and crankshaft but the head... should i throw a b16 vtec head on it or just use the non vtec b18 head... im going to be boosting this car..what do u think

[highmilehatch]

How much power do you want? Didn't you just make a post about this three threads down?

[Jourdan]

whats the difference between a b18b1 and the b18a1?
nothing really. the b1's are like a few extra horses...but im pretty sure theres no significant differences though. the head i sold you is in good condition...you probably would be able to sell it for some extra loot.
frankenstein it all the way.

[boostme05]

i was deff thinking bout the ls vtec conversion... the horsepower i want.. well i just wanna be at least 12's ... i want to push at least 20 psi when i run it... and at a daily driver like 12 to 15... so should i bore it and sleeve it... or just keep the stock bore and forge it all the way????.... and i did find out that the b1 and a1 one is really no difference at all..

[highmilehatch]

I used to run low 12's on 225/50/15 BFG's with 306 whp/267 tq. Stock LS, full interior Si hatch. You'll have no problems hitting your goals with a stock block.

I still don't think you understand that boost is just a number. It's the horsepower you need to consider. Why do you insist on running 20 psi?? Do you want to make 250whp @ 20 psi or 400whp @ 20 psi? There are so many different turbochargers out there that could put you at those power levels and anywhere inbetween.

[dstarmotuner]

I used to run low 12's on 225/50/15 BFG's with 306 whp/267 tq. Stock LS, full interior Si hatch. You'll have no problems hitting your goals with a stock block.

I still don't think you understand that boost is just a number. It's the horsepower you need to consider. Why do you insist on running 20 psi?? Do you want to make 250whp @ 20 psi or 400whp @ 20 psi? There are so many different turbochargers out there that could put you at those power levels and anywhere inbetween.


:iagree: I say if 12s are your goal keep the stock block and make a custom kit like with DSM turbocharger like the 14b and 450cc injectors. If you get tired you can always upgrade. I say low boost on stock block. Boost is only a number

[boostme05]

now if i make this an ls vtec i heard that if i turbo it the vtec and turbo are going to work agaisnt eachother since vtec speeds up the timeing and doesnt let the turbo fully spool...

[highmilehatch]

That is completely false. Sounds like your way in over your head and really have no idea what's going on. Ignition advance is dictated by alot of variables such as the type of engine management used, how the engine responds to a certain amount, fuel octane, and most importantly who tunes it. All you need to know is that Vtec heads flow much much more cfm (air) than that the non-vtec heads. This makes for much more power output when used in turbocharging. A lot of people will tell you that power is found in the cylinder head. Well this couldn't be more true in this case. Pick up a book called Maximum Boost by Corky Bell. Your not going to gain a true understanding of what you seek to know on this board.

[james_ls]

Ls//vtec For Life!!

[underpressure02]

now if i make this an ls vtec i heard that if i turbo it the vtec and turbo are going to work agaisnt eachother since vtec speeds up the timeing and doesnt let the turbo fully spool...


I think you should start reading honda-tech or have someone that knows what their doing build your car. And why do you want to run 20 psi? I made 569hp at 22 psi and 391 @ 12psi so like the other guy said psi means nothing. How much power do you want to make sure be your first step. Then from there pick the correct turbo for those goals. I ran 12.1 with 280 hp and that was at 10psi on a drag gen kit 3 turbo kit.

[ketchup!]

Ls//vtec For Life!!

haha get ur **** tuned sukka

[Loserkidwac]

This site is great...If you want to build a motor do not go to H-T half the people there have no clue what they are doing anyways seems to be the same here....

Your original questions:
There were a few variations between B18 Ls motors between 90-01 but not many, the mani difference in the b18a1(130hp) and B18b(140hp/142hp) was the intake manifold, intake cam, and the ECU tune...if you are building the motor most will be changed anyways, the difference in cam is also very minimal...I have also head about the p75 head(B18b) haveing a sightly better casting design compared to the PR4 head(B18a)

The blocks and bottom ends are identical excempt for the fan switch thermo sensor, which on OBD0 B18a is on the back of the block and for OBD1+ B18a and B18b it is located on the thermostat housing...

Vtec heads will out flow any non-vtec head its fact and has been proven many times...but the mani debate is money related...you can spend $500 to get a stock vtec head or you can spend $500 to build an LS head, if money isn't a problem go for a b16 head...

The LS motor is a great motor and can easily push 300 hp on a stock bottom end if you plan to make more a built motor is what you need but honestly only forged rods and pistons with some new bearings and rod bolts should get you a fair amount of more power safely...you can build an LS motor to make 500hp...if your goals are alot more then and LS/Vtec could get you there and built properly it could still be fairly reliable...


I rock a 91 CRX si w/ B18b Turbo...7psi currently on a straight T3 .60/.63 till i get a good tune, I only need about 215whp to get me into the 12s you Teg is a little heavier so you could probably reach 12s with around 250whp...good luck with your build...Matt

[OutOfStock]

I heard that Ls-Vtec turbos arent that reliable but also it probably depends on build quality. Also dont think since your slapping a vtec head on your block you'll be able to rev to 9k all day long. Ive been looking at options for my b18b but I think I might be going H2B

[underpressure02]

This site is great...If you want to build a motor do not go to H-T half the people there have no clue what they are doing anyways seems to be the same here....



I rock a 91 CRX si w/ B18b Turbo...7psi currently on a straight T3 .60/.63 till i get a good tune, I only need about 215whp to get me into the 12s you Teg is a little heavier so you could probably reach 12s with around 250whp...good luck with your build...Matt

Funniest thing I read all day long. Have you ever run your car or are you just assuming that you will run 12's with 215 HP? Considering there are only a few people on this site that have hondas and of those few only one or two that actually know what they are talking about I still think you should make your way over to H-T and start reading. If you think most of the people on H-T have no clue what they are talking about why is everyone that has made great power on built and stock motors on that site and pretty much every racer that runs in NHRA and NOPI with an import post and provide input in the drag forum? I guess we all have no idea what we are talking about.

[TurboTagTeam]

I heard that Ls-Vtec turbos arent that reliable but also it probably depends on build quality. Also dont think since your slapping a vtec head on your block you'll be able to rev to 9k all day long. Ive been looking at options for my b18b but I think I might be going H2B

This is were most people blow their Ls/Vtec's. THey assume since they have a vtec head that they can rev as high as a B18c1 or b16. LS motors have a longer stroke then vtec B series motors, so you cant rev them as high.

[OutOfStock]

And the LS blocks dont have the block gaurd like B18cs do, dont B18c motors have oild squirters or something too. I forget i havent looked into LsV for awhile

[Loserkidwac]

Funniest thing I read all day long. Have you ever run your car or are you just assuming that you will run 12's with 215 HP? Considering there are only a few people on this site that have hondas and of those few only one or two that actually know what they are talking about I still think you should make your way over to H-T and start reading. If you think most of the people on H-T have no clue what they are talking about why is everyone that has made great power on built and stock motors on that site and pretty much every racer that runs in NHRA and NOPI with an import post and provide input in the drag forum? I guess we all have no idea what we are talking about.

Yes i have run my car and been working on hondas for a couple years now, I am not running 12s currently or have run my car since I built and installed my own turbo kit, 215"whp" is a resonable estimate to get 2000lbs car into the 12s with traction, 215whp = somewhere around 260-280 hp depending on power train loss, yea there are many factors in that estimate but a porperly built car that should hold ture....

How are you sure that everyone that has made "great power" on a stock Honda motor on H-T?? Those people are more than likely not sitting on the intraweb they are in there garage working on there car...H-t is made up of mostly all pretty boy rich kids that don't even know how to do oil changes, I see topics posted there everyday that could be solved by looking in a repair manual, if you can't figure out how to read an ecu code on an ED/EF honda you shouldn't own a honda....

underpressure02 I made no comments towards you so back off, I was more referenceing the comments about how vtec and turbo work against each other, maybe I haven't been around here long enough to see that people know what they are doing but from what you have posted here previously I think you are one of the few, lets just talk cars and not be e-thugs here like H-T has tuned into

[underpressure02]

Yes i have run my car and been working on hondas for a couple years now, I am not running 12s currently or have run my car since I built and installed my own turbo kit, 215"whp" is a resonable estimate to get 2000lbs car into the 12s with traction, 215whp = somewhere around 260-280 hp depending on power train loss, yea there are many factors in that estimate but a porperly built car that should hold ture....

How are you sure that everyone that has made "great power" on a stock Honda motor on H-T?? Those people are more than likely not sitting on the intraweb they are in there garage working on there car...H-t is made up of mostly all pretty boy rich kids that don't even know how to do oil changes, I see topics posted there everyday that could be solved by looking in a repair manual, if you can't figure out how to read an ecu code on an ED/EF honda you shouldn't own a honda....

underpressure02 I made no comments towards you so back off, I was more referenceing the comments about how vtec and turbo work against each other, maybe I haven't been around here long enough to see that people know what they are doing but from what you have posted here previously I think you are one of the few, lets just talk cars and not be e-thugs here like H-T has tuned into

Not trying to be an e-thug at all a little to old for that crap. You just seem to be sterotyping people on honda-tech. I guess I have a different perspective of people on there since I have been on it forever and have seen the site go through waves of noobs asking the same dumb questions but there is still a lot of good tech information on there espically if you look in the archives. You do have to take what people post and say and really figure out what is bs and what is the truth. But there are still a lot of good people on there that post informative info. All of the people I have met on honda-tech are not pretty boy rich kids except for me but I do all my own work so I guess I don't fit into that group.

As far as power on a stock block I was making over 500 on a stock ls/vtec before finally cracking a sleeve. I got another stock ls motor and I am throwing my stock b16 head on it tonight and going to retune it before this weekends event at e-town. I will keep running stock blocks until my sleeved motor gets back from ERL. For the money ls/vtec is the way to go. You can buy ls blocks cheap as hell all day long vs trying to buy a gsr block. I don't rev my ls/vtec past 8500 and my last motor lasted for 3 years.

[turboteg]

Not trying to be an e-thug at all a little to old for that crap. You just seem to be sterotyping people on honda-tech. I guess I have a different perspective of people on there since I have been on it forever and have seen the site go through waves of noobs asking the same dumb questions but there is still a lot of good tech information on there espically if you look in the archives. You do have to take what people post and say and really figure out what is bs and what is the truth. But there are still a lot of good people on there that post informative info. All of the people I have met on honda-tech are not pretty boy rich kids except for me but I do all my own work so I guess I don't fit into that group.

As far as power on a stock block I was making over 500 on a stock ls/vtec before finally cracking a sleeve. I got another stock ls motor and I am throwing my stock b16 head on it tonight and going to retune it before this weekends event at e-town. I will keep running stock blocks until my sleeved motor gets back from ERL. For the money ls/vtec is the way to go. You can buy ls blocks cheap as hell all day long vs trying to buy a gsr block. I don't rev my ls/vtec past 8500 and my last motor lasted for 3 years.

word yo

[OutOfStock]

Damn that makes me wanna go LSv again....how much did your first build cost you? The thing about H2B that bugs me is that hood thing....

[IntegrasAreBest]

Not trying to be an e-thug at all a little to old for that crap. You just seem to be sterotyping people on honda-tech. I guess I have a different perspective of people on there since I have been on it forever and have seen the site go through waves of noobs asking the same dumb questions but there is still a lot of good tech information on there espically if you look in the archives. You do have to take what people post and say and really figure out what is bs and what is the truth. But there are still a lot of good people on there that post informative info. All of the people I have met on honda-tech are not pretty boy rich kids except for me but I do all my own work so I guess I don't fit into that group.

As far as power on a stock block I was making over 500 on a stock ls/vtec before finally cracking a sleeve. I got another stock ls motor and I am throwing my stock b16 head on it tonight and going to retune it before this weekends event at e-town. I will keep running stock blocks until my sleeved motor gets back from ERL. For the money ls/vtec is the way to go. You can buy ls blocks cheap as hell all day long vs trying to buy a gsr block. I don't rev my ls/vtec past 8500 and my last motor lasted for 3 years.

500 on a stock ls/vtec!!!! nice! i want one!:wiggle:

[underpressure02]

500 on a stock ls/vtec!!!! nice! i want one!:wiggle:


Hopefully I will beat that this friday. We will have to see how much balls I have to push it on the dyno. I would hate to blow it up and not be able to make it to NHRA Falls Nats.

[highmilehatch]

Hopefully I will beat that this friday. We will have to see how much balls I have to push it on the dyno. I would hate to blow it up and not be able to make it to NHRA Falls Nats.

underpressure02, are we talking stock piston/rod LS block?

[HatchSurfer3]

Damn that makes me wanna go LSv again....how much did your first build cost you? The thing about H2B that bugs me is that hood thing....

I think the h2b is going to be much more expensive then an lsvtec. I don't know a whole lot, but just the h2b conversion kit is like 800 im pretty sure

And as far as h-t goes, i kinda avoid using it unless im in the marketplace. Yes there are alot of knowledgable people on there, but also alot of d-bags. But thats going to be any car forum. It seems to me that people just go in and put the search link no matter what question you ask. I remember asking a question that i searched alot for but never found my answer, and the first line was "I searched for this already but could not find what im looking for" yet i still got about 5 people sayin "search noob!" or posting the search link. Ive been on h-t for years but still only have like 300 some posts i think

[underpressure02]

underpressure02, are we talking stock piston/rod LS block?



Yupers 1996 ls block stock 99si head. Has an aftermarket IM, TB, Fuel Rail, Inejectors, FPR but the head and all internals are stock. Just put new bearings, and rings in it.

[Loserkidwac]

I think the h2b is going to be much more expensive then an lsvtec. I don't know a whole lot, but just the h2b conversion kit is like 800 im pretty sure

And as far as h-t goes, i kinda avoid using it unless im in the marketplace. Yes there are alot of knowledgable people on there, but also alot of d-bags. But thats going to be any car forum. It seems to me that people just go in and put the search link no matter what question you ask. I remember asking a question that i searched alot for but never found my answer, and the first line was "I searched for this already but could not find what im looking for" yet i still got about 5 people sayin "search noob!" or posting the search link. Ive been on h-t for years but still only have like 300 some posts i think

I try to help when people ask questions on there but most of the time questions are:

How do I do a motor swap?
Can I put a S2k motor is my riced out civic?
What will make my car faster?

All these stupid questions or ones that were found in the FAQ section, when I acctually see someone that has a intellegent question I'm all over it and help as much as i can...Anymore people just put "i searched" even if they didn't so it sucks for people that acctually do...


underpressure02

you have any dynos for this motor? I'd really like to see a stock LS bottom that holds up to 500hp, who tuned it? Not that i don't believe you but Its hard to think stock LS rods held up to that, I guess i never tired that yet either...

[highmilehatch]

Yupers 1996 ls block stock 99si head. Has an aftermarket IM, TB, Fuel Rail, Inejectors, FPR but the head and all internals are stock. Just put new bearings, and rings in it.

Haha nice I love stock blocks! C16 I assume?

[underpressure02]

I try to help when people ask questions on there but most of the time questions are:

How do I do a motor swap?
Can I put a S2k motor is my riced out civic?
What will make my car faster?

All these stupid questions or ones that were found in the FAQ section, when I acctually see someone that has a intellegent question I'm all over it and help as much as i can...Anymore people just put "i searched" even if they didn't so it sucks for people that acctually do...


underpressure02

you have any dynos for this motor? I'd really like to see a stock LS bottom that holds up to 500hp, who tuned it? Not that i don't believe you but Its hard to think stock LS rods held up to that, I guess i never tired that yet either...


Usually I fly Mase up to tune my cars. Jdogg tuned the last motor. This time I am having Frank from PSI tune it because I don't have time to fly mase up since I need it tuned for this weekends race. I don't have any dyno sheets on my work computer and when I get a chance I will post some. But that is not on my list of things to do. I could care less about dyno numbers b/c it should be used as a tuning tool. All I care about it is the times at the track and winning events. You should bring your car to e-town this weekend for fall nats.

I use Sunoco 116 Maximal Red.

[Loserkidwac]

I wish I could make it up this weekend I'd reallylike to check out your car but i promised a friend I'd help him do some house painting...not really looking forward to it...hopefully i will get my EBC soon and I am taking my car to JK Tuning to get her set-up just sucks that tracks will be closing soon and I'll have to wait till sring to get some good runs in...just means I can work on it over the winter

[underpressure02]

I wish I could make it up this weekend I'd reallylike to check out your car but i promised a friend I'd help him do some house painting...not really looking forward to it...hopefully i will get my EBC soon and I am taking my car to JK Tuning to get her set-up just sucks that tracks will be closing soon and I'll have to wait till sring to get some good runs in...just means I can work on it over the winter


Yeah this is the last big race close to us. I will be going to NOPI OH for the finals OCt-14-15 and then there are a few small events at e-town. Import Vs Domestic. Then in Nov there is a big race at MIR Import VS Domestic which is supposed to be good. I may try and go there if there is no snow on the ground.