Max Hp On 03 Wrx
#1
Max And Safest Boost
Wondering On How Much Boost And Safest Can A 03wrx Engine Hold With Mods...well So Far I Have A Vf34turbo;sti Pink Inj;walbrofp;hks Hi-power Exhaust;helix Dp And Upp;gruppe-s Headers;perrin Inlet Pipe;lightweight Crank Pulley;fmic;intake;act Clutch If That Matters;ekutek Tuned;and Stickers Lol...and Would It Matter If I Use 93 0r 100 Octane....right Now Im Boosting Near 16' ;thanks
#10
#11
I'm guessing that the water injection has a little something to do with that. It really seems to help extend the life of the stock pistons from what I've gathered. Nice set up. How do you like the SR55?
#12
Registered User
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Join Date: Jul 2005
Location: Fairfield B&N Drive & BBQ
Posts: 2,576
Car Info: 02 PSM Bugeye & Kawasaki Z1000
Originally Posted by bigedscycles
Currently, I'm running 395 wheel HP with stock internals on my 2002 WRX. The clutch can't handle it all the time, slipping on occasion. A new clutch will be my next upgrade.
#14
Sr55
On my stock 2.0 engine, there is a lot of turbo lag. At about 5500 RPMS the turbo pulls very hard to about redline. I'm probably going to upgrade my 2.0 to a 2.5 next fall which will hopefully help me reach full boost sooner. The alcohol/water injection allows me to run a lot more boost, about 25 psi. Without alcohol/water injection I only dynoed at 325 HP at the wheels at about 18 pounds of boost.
#15
Dyno Recalibration
My dyno results from my initial printout were wrong, the dyno was incorrectly calibrated from the company. My new results are 360.7 WHP with 320 ft-lb of torque. I did some minor moods since my last tuning, to include APS tumbler deletes and new clutch that allowed for a complete tuning (without clutch slippage).