Jay-Z

searching for max boost has on stock engine. I did the search but my eyes are spinnin from the off subject things im reading so please assist if you have solid answers.

I have an 02 vortech SC w/ aftercooler running at 11.77lbs of boost @ 8400RPM cutoff on the stock head as of now. What is the max boost i can safely use as this is my daily driver. The car was tuned by church automotive testing and shawn church says once i get my RC 650 injectors put in he can tune me up to 14lbs at 9krpms. He says ill be at about 420-430hp. Am i pushing it? Any input will be helpful. Thanks in advanced!!!

Enthralled

374WHP on stock injectors...SWEET!!

DC5 RSX R

Alot of a boosted daily driver is how you drive it but more boost will always tend to shorten the lifespan. 400 hp is quite a bit for a daily driven, high compression engine

s2000442

Read Sideways post on how to maximize the vortech supercharger...excellent post and should answer most of your questions, if not then PM him. I would say he is the resident expert on everything Vortech

https://www.s2ki.com/forums/index.php?showtopic=588363

UberDuper

AFAIK the vortech is a 5th injector setup. When you move to larger injectors, do you ditch the 5th supplied with the kit?

UD.

Enthralled

I did. btw this is only on the AP2 kits.

9kFever

Nice numbers...after about 12psi on the vortech you are starting to push it a bit. However, depending on how you drive it it should hold up.

9kFever

your not on stock injectors are you?

Jay-Z

Yes i am on stock injectors. Is that odd?

ABCVTEC

Not odd, impressive. I'm running lean on stock injectors at ~330hp @ 6.5psi. That is with a CTSC though. Perhaps I should investigate into my running lean.