Twin Turbo WRX?? Even Possible??

[JaySpecV]

This kid at my school claims that when he has enough money (wich will be never) he says he can twin turbo his wrx. I was like WTF??? :bigeek: I dont own a wrx so i wasnt going to say it is impossible but i find that really hard to believe.
Question: Is it possible to twin turbo a wrx? If so would it be wise??

[MPowerKai]

I think twin turbo is pretty useless with a car that only has one exhaust manifold, it's good on v6's or v8's because they have more than one manifold to tap. It also works on rotory because they have one exhaust port per rotor. You'd have all sorts of spooling problems. But it can be done if you just wanna say I have twin turbo and you don't want to go fast. You could have a smaller turbine off the exhaust feeding into a bigger turbine which would go into the intake manifold.

So in short is it possible, yes. Will it be fast? maybe. How much will it cost? He'd better be able to afford 5 STi's....

[B-Nice]

There is a twin turbo wrx on nasioc. it put down 247hp and 199ft-lbs of torque at 7psi

[JaySpecV]

There is a twin turbo wrx on nasioc. it put down 247hp and 199ft-lbs of torque at 7psi


sounds like a waste of money to only put down that much.

[B-Nice]

I think they are going to turn up the boost on the next dyno run.

[BlackBulletTSi]

still sounds like a waste to me

[05Accent]

twin turboed WRX with only 247????? BOO

[eviltalon]

twin turboed WRX with only 247????? BOO
:rofl: :rotfl:

[05Accent]

:rofl: :rotfl:

:confused:

[markley02]

IMO it would only be worth it if you are going to run huge boost through the thing. Like MpowerKai said, use a smaller one to spool the bigger one. Even then it just helps with lag, no power increase. unlike the 3000gt what uses a turbo per 3 cylinders.

[300zTT]

twin turbo is where its at !!!!!

[SUB2.5RS]

Well i this i've seen some TT subaru engines on ebay before( EJ20TT), and they put out like over 260 i think. But you tell that kid while he's wasting his money you'll be just fine.

[peteyturbo]

The legacy's came with a twin turbo in japan I believe with the 4 banger. Twin turbo is alot easier on scoobies since the have two cyls on each side, but there really is not much of a benifit other then to "say" its TT, unless you have a big/small sequential setup like they did from the factory..

[Silver04STi]

I've seen a twin turbo/supercharged WRX somewhere on the net.

[specVogel]

http://www.nissanperformancemag.com/june06/nerds/

[Silver04STi]

Quote from the above article:

"The only time a twin turbo should be seriously considered is on V-6, I-6 and V-8 motors where it packages well and you can use two larger turbos. On 4 cylinders, consider a twin setup only for show purposes"

[wgknestrick]

The problem with a TT setup on any 4cly Suby is the firing order. Subarus fire 1,3,2,4 so that means one side fires it's 2 cylinders then has to wait for the other side. This splits the exhaust up into "chunks" that isn't so great for spooling turbos as you want a smooth continuous flow of exhaust.

It's hard to extract all the energy out of the exhaust in the turbo when it hits the turbine in big pulses like that. 6 cylinder boxer engines are a different story. Big turbos are almost always much more efficient than 2 smaller ones too. Efficiencies don't start to plateau until up in the GT30R range. 2 GT30Rs aren't spooling on a 4 cyl either.

[Keyan]

The only way I see a twin turbo doing any good in a wrx is if they swapped in the 6 cyl touareg motor in.!

[alachua]

The only way I see a twin turbo doing any good in a wrx is if they swapped in the 6 cyl touareg motor in.!

I think you meant Tribeca. I doubt the VW engine would be a drop in. :afro:

-Cliff

[S4toSTI]

H6 Ftmfw.

[BradC]

FAT makes a kit with 2 GT30's for the STi
http://www.forcedairtech.com/index.html

[9 Ball]

The only way I see a twin turbo doing any good in a wrx is if they swapped in the 6 cyl touareg motor in.!

Perrin dropped an H6 (Tribeca motor) in a Rex a few months back.

Here’s some info… SuperCars (http://www.supercars.net/cars/3278.html)

[BradC]

Perrin dropped an H6 (Tribeca motor) in a Rex a few months back.

Here’s some info… SuperCars (http://www.supercars.net/cars/3278.html)
That car was sick...the video of it was awesome...sounded hot too

[9 Ball]

And I quote Barry… “H6 Ftmfw!!”:supz:

If it doesn’t cost too much I can see more people doing these swaps. The only other 3000lb flat-6 powered cars are the Porsches – that would be cool and truly something different.

And it’s also another way for you Subie guys to keep up with us Evos.:wink:

[HuffRex]

Its def. something different...that not many say they have...but the efficiency of them compared to just a simple turbo upgrade is def. not worth it. Single turbo setup FTW!

[05Accent]

twin turboed WRX with only 247????? BOO
:rofl: :rotfl:

:confused:
i still want to know why i got rotfl'ed at. ?

[05CGMSTi]

Subaru did make a twin-turbo Legacy a few years ago. It was called the B4 RSK.

[TROLL]

I think Gadiel and crew were running a twin GT35R setup in their drag car... Ultimate Racing fabbed it up for them, but never really produced it for the public. Instead, UR produced a single GT40R setup for those who have completely lost their minds :)
But if my info is correct, there has to be a benefit to running the twin GT35Rs or else Gadiel and Big Valley wouldnt be using them to power one of the fastest Imprezas in the world. I'll see if I can find more details on that setup...
Bryan

[HuffRex]

I think Gadiel and crew were running a twin GT35R setup in their drag car... Ultimate Racing fabbed it up for them, but never really produced it for the public. Instead, UR produced a single GT40R setup for those who have completely lost their minds :)
But if my info is correct, there has to be a benefit to running the twin GT35Rs or else Gadiel and Big Valley wouldnt be using them to power one of the fastest Imprezas in the world. I'll see if I can find more details on that setup...
Bryan
Knew nothing about that...keep us posted!!

[Vypurr2]

Ever wonder why even the factory TT cars often go to 1 giant turbo?

1 Big Turbo > 2 Small-Medium Turbos!

Just look at the Supra for example. Its cheaper and more power when you go to an insane turbo!

[the mike]

Subaru did make a twin-turbo Legacy a few years ago. It was called the B4 RSK.


Found a motor on ebay, JDM TT goodness, 2 downpipes and all:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8075522059&ssPageName=MERC_VI_RSCC_Pr4_PcY_BID_Stores_IT#ebay photohosting

[TROLL]

that thing is awesome, and only 25 mins left

[Plastik Racer]

Dude that twin turbo engine is sick! I love that cover that says Boxer twin turbo! The only think good about the twin TT setup is almost no lag what so ever. It'd be like having the throttle response of an N/A subaru but with a turbo.

[D Money]

http://img.photobucket.com/albums/v495/Japslapr/Momscamera070.jpg

http://img.photobucket.com/albums/v495/Japslapr/Momscamera071.jpg

http://img.photobucket.com/albums/v495/Japslapr/Momscamera072.jpg

http://img.photobucket.com/albums/v495/Japslapr/Momscamera069.jpg

http://img.photobucket.com/albums/v214/mattyk04/car%20meet/DSC_0428.jpg

http://img.photobucket.com/albums/v214/mattyk04/car%20meet/DSC_0350.jpg

http://i33.photobucket.com/albums/d95/AllAspects/DSC03013.jpg

http://i33.photobucket.com/albums/d95/AllAspects/DSC03014.jpg
WRX 2.0L
Garrett T3-45 trim turbos
twin 38mm tial wastegates
Aftermarket radiator designed for a Honda
Tilton oil pump for turbo cooling (I guess this was a MAJOR hurdle to find an oil pump that would flow the right amount of HOT oil)
AN fittings everywhere
Perrin fuel rails
AEM standalone
Other doo-dads I forgot


Is it possible? YES. Is it worth it? Not sure....

[Plastik Racer]

I think its worth it, if you do road racing but for drag I think its a waste. I would give the guys who fab'd that up a serious high five, looks like an insane amount of work.

[HuffRex]

Thats the car I saw online. I was like wtf. Its def. different!!!

[TROLL]

i looked into the TT setup i was referencing earlier, and i was mistaken... the Big Valley setup this year is running a single GT40 and utilizing a true twin scroll setup with two uppipes and two tial wastegates. woops...

[Keyan]

I think you meant Tribeca. I doubt the VW engine would be a drop in. :afro:

-Cliff


Yup, thanks. was kind of sleepy.

I'm glad people on this forum correct, not flame :partyman: