*This is all hypothetical, I am not currently interested (or have the money) in making my car any faster

What turbo setup/kit out there puts out the most power that does not require a full engine build and transmission rebuild/harder gears/sti gearbox?

More specifically; say i wanted a bigger turbo. I would not want to put in new cams, pistons, etc - engine internals, basically a bolt on turbo kit with supporting mods. Also, i wouldn't want to upgrade the potentially fragile wrx gearbox. (and clutch setup if possible).

As many of you know, the car has the 2.5L wrx engine and the 5 speed wrx transmission.

I was talking to a guy with an 06 wrx sti and he said I should look into a gt35r kit because they are fairly well priced (2k-3k used) and put out lots of power, like low-mid 400whp. I looked into it a bit, but it seems most people were putting in new pistons and stuff like that, most people suggested not doing that setup on a stock block/motor.

When the time comes that I would want more power, I think that I'd like to putting down around 320 - 360awhp if possible without pulling the engine for that kind of work. Is this possible at all? If not, what is the most power i could go for without endangering my engine/transmission?

 

Dom 3

 

i had 350whp and no problems with my 5 speed

 

20g..i belive good for 340whp on pump gas...maybe a gt30r, that will take you to the 370ish...but a gt35r is best, maybe 400whp on pump!

 

which turbo?

but on the stock engine/tranny, is that ok?

 

go vf34...

have fun..

anything else u can only granny shift

 

18g

 

I'd say one of these with a .63ar housing so you get the quick spool, nice response but without the high end power

 

http://www.blouchturbo.com/turbos/WRX_Dominator_3.0R/

 

good turbo, will work well for any 2.5L also a easy 375-400whp

 

so also, what are the need supporting mods that somone would have to get with a turbo upgrade? like an accessport, bigger injectors, up-pipe, down-pipe, bigger intercooler? (fmic needed?) and what else?

 

correctly if i'm wrong,

how about all bolt ons like full tbe, headers, uppipe.
vf22 w/ bigger injectors, fuel pump, front mount intercooler and proper tuning.

wont this bring the car to atleast 350whp range?

 

^All those bolt-ons will come close to the price of a rotated kit but not have the performance and adjustability of a rotated kit.

 

you got most of the supporting mods but your missing a fuel pump homie and a tune that is of coarse...im running a gt30r with cobb ap v.2 860cc injectors 3" inlet pipe, hks fmic, custom up-pipe, custom 3" downpipe, greddy evo 2 exhuasts. putting down like almost 400 whp more like 390ish with 91 oct. i'd say go with gt30r. you'll love it for sure. i originally wanted just a fp green but my tech told me other wise and got me a gt30r and im very happy i did that move...what ever your choice is hope the main thing your happy with it because your the one paying for it.

 

Wow cool i completely forgot about the fuel pump, that would be a good idea

Is an fmic needed with a 20g or 30r? Can you even fit a tmic when the newer turbo is in place?