j66

i have the comptech SC 04-05 with aftercooler, i want to know if i upgrade my pulley, what other changes do i need inorder for the car to run safely? injectors? standalone? what does the comptech use to adjust the fuel/oil? please help me out. thank you!

Asura

What size pulley? The answer will depend on how much boost..

news2kroller

i have an 02 s2k but i just ordered my 4.25" pulley from asp racing. 3 weeks wait time for an alum pulley. it all depends on what you want overall, im running a very safe pulley size and will probally be at or just below 8lbs of boost. should have it by october.

j66

i want to go for the max size pulley, still running safe with the comptech kit, and don't have to get AEM EMS and Injectors done, what's the best pulley for this ?

news2kroller

your going to want something to help your a/f wether it be EMS or other setups. you will be getting more hp/$ when you add something.

j66

what is the maximum psi pulley i can run safely with stock engine and comptech sc kit?

news2kroller

the more boost you run the more vital ems or other fuel tuning. at the minimum add ultimate e-manage. I was in your same shoes 1 week ago, after searching and talking to tuning authorities you NEED some sort of engine managment, i bought the EMS with UEGO yesterday along with 750 injectors, the comptech FPR dosent allow you to get the most/safest setup out of your car as its just one screw you adjust.

Dsgs2k3

7 psi pulley, keep the stock injectors, and get it on the dyno to get it tuned some with the comptech fpr. the pulley should be 4in.