Turbo WRX Today
Thread Starter
Joined: Feb 2003
Posts: 21,820
Likes: 1
From: OH-IO
Rep Power: 511 










Turbo WRX Today
ok, so this guy in an 02 wrx who always goes to the local shows was there today. he has 19s, huge FMIC, intercooler sprayer, and i think some turbo upgrades along with intercooler piping upgrades. well, i saw he had a dyno of his car with him today and it read "291 whp @ 19 psi". wtf is with that? 19 psi and only 291 whp. shouldnt he be alot higher than that? the dyno was real, but he wrote in the psi. could he have been BS'in that?
well....my friend has a 02 wrx...upgraded fuel rails, injectors, turbo, exhaust, fmic, and piggyback comp. He ran 308whp at like 20psi.....tuned at xx-tuning. Very snappy car, me like lots!
SRT-4 owner with 2MCHPSI
iTrader: (8)
Joined: Jan 2002
Posts: 1,695
Likes: 0
From: your g/f house, Louisiana, US
Rep Power: 0 
dont forget that the wrx is allwheel drive...they loose A LOT of power in the transition...check out their numbers at the crank....but i bet that those wrx are running high 12s low 13s
Thread Starter
Joined: Feb 2003
Posts: 21,820
Likes: 1
From: OH-IO
Rep Power: 511 










i just would have expected more from that kind of psi on a wrx engine. i mean, kevin is gettlin like 250 whp on 14 psi, so he could probally top or better the whp of the wrx on 19psi theoretically if that was possible on the 7thgen.
Joined: Sep 2001
Posts: 26,407
Likes: 0
From: Lexington, KY
Rep Power: 584 










Originally Posted by abmerop18
i just would have expected more from that kind of psi on a wrx engine. i mean, kevin is gettlin like 250 whp on 14 psi, so he could probally top or better the whp of the wrx on 19psi theoretically if that was possible on the 7thgen.
Sometimes, I can see right through myself ...
Hey! Look At Me!! I'm a Supporting Member!!
iTrader: (2)
Joined: Jun 2001
Posts: 17,276
Likes: 0
From: 757
Rep Power: 481 










I need to find a link to the 650whp+ WRX that is around here. It's sick. Supposedly the guy flew in STi from Australia to help him build up the car. It's absolutely gorgeous. I'll hafta go take my camera and go get some pictures of you. You guys will recoginze it.
Don't drink and post, you will end up hilarious.
Joined: Apr 2003
Posts: 5,268
Likes: 1
From: In a Box
Rep Power: 342 










You need to understand that boost pressure won't tell you anything about the horsepower.
10 psi on a TD0518G will flow LESS air than 10 psi on a T51R, which will flow LESS air than 10 psi on a T88H.
My old mazda was pushing around 22-23 psi and I was making roughly 220 awhp. The reason was because I had a small turbo. Had I upgraded the turbo to a better IHI VJ16 turbo I would never be able to run over 20 psi on the stock trans cause the power I would be putting down would destroy the stock trans in no time.
10 psi on a TD0518G will flow LESS air than 10 psi on a T51R, which will flow LESS air than 10 psi on a T88H.
My old mazda was pushing around 22-23 psi and I was making roughly 220 awhp. The reason was because I had a small turbo. Had I upgraded the turbo to a better IHI VJ16 turbo I would never be able to run over 20 psi on the stock trans cause the power I would be putting down would destroy the stock trans in no time.
7thgen Power Maker
iTrader: (74)
Joined: Sep 2003
Posts: 9,048
Likes: 1
From: Buffalo, NY, US
Rep Power: 0 










Originally Posted by Got Boost???
You need to understand that boost pressure won't tell you anything about the horsepower.
10 psi on a TD0518G will flow LESS air than 10 psi on a T51R, which will flow LESS air than 10 psi on a T88H.
My old mazda was pushing around 22-23 psi and I was making roughly 220 awhp. The reason was because I had a small turbo. Had I upgraded the turbo to a better IHI VJ16 turbo I would never be able to run over 20 psi on the stock trans cause the power I would be putting down would destroy the stock trans in no time.
10 psi on a TD0518G will flow LESS air than 10 psi on a T51R, which will flow LESS air than 10 psi on a T88H.
My old mazda was pushing around 22-23 psi and I was making roughly 220 awhp. The reason was because I had a small turbo. Had I upgraded the turbo to a better IHI VJ16 turbo I would never be able to run over 20 psi on the stock trans cause the power I would be putting down would destroy the stock trans in no time.
For example:
A T3 turbo at 10 PSI vs T3/T4 turbo at 10 PSI vs T71 Turbo at 10 PSI
The power the T3 may put out will be less than that of both other turbos. Simply because it flows less......say maybe 325 lb/min
The T3/T4 will be more than the T3 simply because it flows more....say 350 lbs/min
The T71 might be a HUGE turbo diesel one and may flow 500 lbs/min.
The power is not going to be the same in all 3 of these turbos....EVEN on the same motor.
Registered!!
iTrader: (4)
Joined: Jul 2002
Posts: 2,396
Likes: 0
From: *UCF* Orlando, FL
Rep Power: 0 

Originally Posted by Got Boost???
You need to understand that boost pressure won't tell you anything about the horsepower.
10 psi on a TD0518G will flow LESS air than 10 psi on a T51R, which will flow LESS air than 10 psi on a T88H.
My old mazda was pushing around 22-23 psi and I was making roughly 220 awhp. The reason was because I had a small turbo. Had I upgraded the turbo to a better IHI VJ16 turbo I would never be able to run over 20 psi on the stock trans cause the power I would be putting down would destroy the stock trans in no time.
10 psi on a TD0518G will flow LESS air than 10 psi on a T51R, which will flow LESS air than 10 psi on a T88H.
My old mazda was pushing around 22-23 psi and I was making roughly 220 awhp. The reason was because I had a small turbo. Had I upgraded the turbo to a better IHI VJ16 turbo I would never be able to run over 20 psi on the stock trans cause the power I would be putting down would destroy the stock trans in no time.
guys comparing an IHI 78 turbo the almighty on the WRX's turbo upgrades list at 10PSI will flow a hell of a lot more than the puny stockers, that's like comparing a t25 to a t66..... just plain stupid.... and secondly that WRX's "measly" 290HP 4WD vs. if any 7thgen or FWD for that matter 310HP FWD, the WRX would fuc.king own all day long, and would take some change for later
this is why i'm trying to slide into one locally right now... wish me luck
also you have to remember that the WRX came from the factory with a turbo. The 227 stock is at (IIRC) around 7-8 psi. That means that if it was non-turbo it would be making like 120HP. If you get a NA honda motor and turbo it you will get a bigger increase going from atmospheric to 14psi than from 7 psi to 21 on a turbo motor.
Post Whore General
iTrader: (8)
Joined: Dec 2001
Posts: 7,704
Likes: 0
From: Cincinnati, Ohio, US
Rep Power: 374 



Smaller turbo+AWD+19s=lower numbers. The WRX comes stock running 13.5 psi I believe. With a bigger turbo he would make a lot more power. But being AWD and with 19s is going to kill his nubmers.
Registered!!
iTrader: (4)
Joined: Jul 2002
Posts: 2,396
Likes: 0
From: *UCF* Orlando, FL
Rep Power: 0 

^^^^ EGHHHHH.... wrong my friend
stock WRX are rated at 17 PSI most only see 16 on their boost gauges... but ya... ok on with the topic now that matters have been corrected
stock WRX are rated at 17 PSI most only see 16 on their boost gauges... but ya... ok on with the topic now that matters have been corrected
Originally Posted by REDchirp
^^^^ EGHHHHH.... wrong my friend
stock WRX are rated at 17 PSI most only see 16 on their boost gauges... but ya... ok on with the topic now that matters have been corrected
stock WRX are rated at 17 PSI most only see 16 on their boost gauges... but ya... ok on with the topic now that matters have been corrected
why does everyone always say that it's not possible to run 19psi on a d17. Thats just being ignorent. with the correct amount of work(sleeves,pistons,rods,rings,valves,headwork) it can be done. there are d16's out at the local races that are running 21psi and are daily driven. so it is possible, lets not be so narrow minded.
Sometimes, I can see right through myself ...
Hey! Look At Me!! I'm a Supporting Member!!
iTrader: (2)
Joined: Jun 2001
Posts: 17,276
Likes: 0
From: 757
Rep Power: 481 










Noone is saying that it's not possible to boost more than 1 BAR on a D17. Just the amount of work and money to go into boosting that much on a SOHC might not be worth it. The money would be better invested into something that was DOHC.
hes talking about a wrx impreza, not the STi, but yes all thats correct. I dont know why people put so much down on wrx's. I know a guy in town, cobb tuning package, fmic, 3.5" exhaust, greddy profec b and hes making 355whp, you know what he runs in the 1/4? low 12's, exactly
Sometimes, I can see right through myself ...
Hey! Look At Me!! I'm a Supporting Member!!
iTrader: (2)
Joined: Jun 2001
Posts: 17,276
Likes: 0
From: 757
Rep Power: 481 










Originally Posted by civicskater
hes talking about a wrx impreza, not the STi, but yes all thats correct. I dont know why people put so much down on wrx's. I know a guy in town, cobb tuning package, fmic, 3.5" exhaust, greddy profec b and hes making 355whp, you know what he runs in the 1/4? low 12's, exactly
The real challenge is to put a corner in there somewhere. See how fast you can make it around that corner. See if you can drop lap times. Real men drive around corners.
Or, how about actually using the WRX/STi for what it was designed for - road/rally racing. Spend all that money in tuning an already expensive car and you want to not use it for what it was designed? That's like putting shoes on your hands. Pointless.
A stock wrx runs 12.5psi stock. I just installed the boost guage for my friends wrx-pretty much 12.5psi except for a 2psi spike right when he shifts into third. Whoever said a wrx runs 17 psi stock is retarded considering its turbo would be out of its efficensy sp? at that psi. A sti runs 16 psi stock. Evos run 19psi stock.
Originally Posted by abmerop18
i just would have expected more from that kind of psi on a wrx engine. i mean, kevin is gettlin like 250 whp on 14 psi, so he could probally top or better the whp of the wrx on 19psi theoretically if that was possible on the 7thgen.
Originally Posted by taz757
Honestly, who cares how fast it goes in a straight line. There's no real skill involved in driving your car down a 1/4 mile drag strip. Straight line. Ooooo. Whooptie ****.
The real challenge is to put a corner in there somewhere. See how fast you can make it around that corner. See if you can drop lap times. Real men drive around corners.
Or, how about actually using the WRX/STi for what it was designed for - road/rally racing. Spend all that money in tuning an already expensive car and you want to not use it for what it was designed? That's like putting shoes on your hands. Pointless.
The real challenge is to put a corner in there somewhere. See how fast you can make it around that corner. See if you can drop lap times. Real men drive around corners.
Or, how about actually using the WRX/STi for what it was designed for - road/rally racing. Spend all that money in tuning an already expensive car and you want to not use it for what it was designed? That's like putting shoes on your hands. Pointless.


