vf34 vs vf22 let the debate begin....
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From: Traverse City, Michigan
Car Info: 03 wrx vf34 281hp/276tq
(shhh dont tell my wife i want to break it so i can go sti 6 speed)
honestly i would like the trans to last for awhile but i do like to "drive" the car and understand the 02-03 5 speed is a bit weak. i plan to eventually go to the sti 6 speed cause the gears are stronger and its just sexy lol. my bigger concern is the limits of the stock engine. i havent heard of hardly any cases of blown 2.0's so i dont really have a good idea of where the power/reliablility limit is. same goes with the driveshafts.
honestly i would like the trans to last for awhile but i do like to "drive" the car and understand the 02-03 5 speed is a bit weak. i plan to eventually go to the sti 6 speed cause the gears are stronger and its just sexy lol. my bigger concern is the limits of the stock engine. i havent heard of hardly any cases of blown 2.0's so i dont really have a good idea of where the power/reliablility limit is. same goes with the driveshafts.
Last edited by austinp02; Nov 6, 2007 at 11:14 PM.
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From: No More Suby. Im still your friend though!!
Car Info: 2003 Jeep Wrangler 8" lift
Clutch
well i just put the 34 in my sti and i like it, still spools low and adds just the right amount of power... but i would advise for a tranny upgrade... im gna have to swap clutches soon.. the power is just a tad too much for stocky!!!
cOry
everyone said i shoulda went 22 tho, aha... oh well... ima go 20g once i get a bike for day to day use
cOry
everyone said i shoulda went 22 tho, aha... oh well... ima go 20g once i get a bike for day to day use
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From: Southern California
Car Info: 2016 Z51 C7, 2007 Exige S, 2008 ZX-10R, 2016 Taco
ok so im gonna upgrade the ol turbo in the very near future and have narrowed it to the vf34 or the vf22, but cant decide which one to go with. i would like to go with 565cc injectors cause i have a good deal on a set so i need to know if those will be sufficient for either. my goal is to make around 325-350whp (or more if its reliable) but maintain good low to midrange torque and spool characteristics. the car is my daily driver so it must be reliable. the internals and driveline will remain stock for now so they need to withstand the extra power. i will be using the car for autocross and light track days but want good streetability as well. so basically my decision will be based on reliability, streetability and as much power as can be made with the 565cc injectors and a single 255lph pump without breakin stuff. post up your wisdom!!
Bone stock 2002 2.0 block, fmic, intake, STI injectors, pump, exhaust, etc and no injection I made 292 awhp 297 tq on pump (93). 50/50 mix of race (117) and pump netted 324 awhp and 338 tq. My car weighs under 3,000 lbs and is fast. Ask some of the STI owners that raced with me at the track.
The VF-34 and VF-22 are quite a bit different IMHO. The VF-34 is not a "large" turbo, but you can't wish for the response of the stock turbo and ask for 300+ awhp. It ain't gonna happen. The VF-22 will give you more peak horsepower and some claim it spools nearly as quickly as a VF-34. I think that it has to be tuned very aggressively to come close. I would not even think of running a VF-22 without large (read not STI) injectors.
Why not ask about the VF-30? Many claim it is nearly identical to the VF-34 in performance. Prominent tuners have said there are little to no differences in performance.
My $0.02. Opinions will and do vary. I can be reached at james.s.johnson.iii@hotmail.com or you can do a search and find my cell #. I don't get on this board too often. Blame it on the Vette.
San
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