nathanellis

Just wanted to get some opinions, numbers, suggestions..
Have ecutek reflash/tbe/up.. thinking of doing turbo upgrade.. between vf34/22/ or jst doing a vf 39.. looking to get 250whp.. so i dont want a bunch of people onhere to start posting how im a fool cause they think i should get a fp grn or something.. just want a reliable 250whp...
thanks

NJ Dino

250 is a good goal. I am making 236 on a stock turbo and intercooler. my supporting mods are intake,TBE, headers, Uppipe, AFC, AVCR PWR radiator. You should have no problem makign 250 with that turbo. especially with a good engine managment. you shoudl make 250 no problem. I have heard that just an uppipe with stock headers will limit you somewhat, but...you shoudl be able to make it with that turbo no problem.

NJ Dino

and I know that with a UTEC or ECU tek my car would make alot more property. so by my numbers with just an AFC and AVCR you shoudl have no problem with a VF39. shoudl be a pretty cool setup. hope that helps. Since the car was on the dyno making 236whp. I have put a TSX top mount and have a VF39 waitin at home. I need injectors and a pump before I install it. I would also like to put the fuel rails on also. you should see if you can run a larger turbo with out upgraded injectors though. check that out though because I dont know if the stock 440s (I think thats what they are) can handle a larger turbo.

nathanellis

Thanks for the info, 236 on stock turbo and intercooler is very good.. i would like to do headers as well, i was planning on doing the gruppes ones.. what is your powerband like? i was told that doing headers without bigger turbo cause masive low end power loss..

NJ Dino

powerband is pretty good. If my stupid scanner wasnt broke I would scan my dyno sheet for you..the header and uppipe definatly made the car pull harder on top. but its also alot faster down low too. The spool time is much faster and the car is much torquier even at partial throttle/around town driving. If I had to compare the powerband...I would say the power band is pretty similar before and after the header/uppipe install. (just so you know, before the header,uppipe, and retune I was making 202whp and 205lb/ft of torque. Its just faster all around in the same spots. it gained a little on top but still faster down low. then again thats all due to a really small turbo also. as you get rev higher with that td04 you start to push more and more hot air especially if the boost is up. the point is that the header/uppipe and tune got me more then 30 whp and 30lb/ft or torque. solid gains for 500 bucks roughly. The only thing I do notice about the headers that is disadvantageous with a stock turbo is that you cant really hold boost all the way to redline. before the i put them on I was making 1.1 bar all the to red. now it tapers off to between .96-1.0 bar from 1.2bar max. the stock td04 cant flow so its starts to bleed out. which is normal since you change the diameter of the headers and delete yet another cat. but the loss in boost twards the top is due to larger piping on the manifold and still using the tiny turbo. do the headers and uppipe its worth it. if your strapped for cash I am sure the uppipe will make a huge difference for you right now. most of my gains that I feel are probably because of the uppipe. but once the bigger turbo goes in the headers will make a bigger impact because of the flow capabilities.

clintieboy

hey there, i am running a stage 4 wrx. vf 39, sti intercooler, perrin ebc, perrin uppipe,invidia catless turbo back, modded injectors, ngk iridium plugs, perrin turbo inlet and intake, aps blowoff. i had pdx tuning and matrix in portland do the dyno, on pump 92 octane we got 277.6 at the wheels. very drivable. its probably equivelant to a stage 2 sti. i am worried about the 5speed trannie though. i wish i would have bought an sti instead. i will be buying one in october though, hehehe

clintieboy

oh yea, i am running about 1.4 bar on the boost (about 22 psi)

clintieboy

oh yea, i forgot to mention the ecutec reflash and tune by pdx tuning

NJ Dino

sounds like a nice setup. Like I said, 236 on stock turbo. im hoping to get around that kinda of a horespower plus I run 93 octane so I think it shoudl be pretty feasable. But to anyone who is interested. I am going to be sellin gthat VF39 that I have. PM me if your interested.

blue blurr

iTrader: (3)

All those numbers seem pretty high, were you dyno'd on a Dynojet? If so that is why. Around here someone just got tuned and dyno'd with a vf39 and was around 240whp on a Mustang Dyno. Nathanellis Who will be doing the install and tuning?

fastnoypi

all three of your turbo selections will get you to 250whp on a wrx ..mid to low 12 sec 1/4mi.

check out http://forums.nasioc.com/forums/show...4&page=1&pp=25 #17 for a vf22, there are several vf30 plots which are very close to what vf34s should do too