I've been getting so many mixed answers, and gettin myself paranoid, and after searching I havent found a satisfactory answer, Summer is here, and i have my MBC, sitting here and an exhaust and intake in the mail, and an AWD dyno 15 minutes from me, and a very reputable tuner, and a few friends who are familiar with the 4g63 block, were all in debate as to what would be a safe PSI for me, to run during the summer and winter, if any one has any advice I would appreciate it thanks.

 

Any reputable tuner would have that answer for you.

 

23 pounds

 

22 is "safe", I ran 24 on pump

 

i was thinking 23 my friends older brother says no more then 21, but hes got a first gen 4g63, so the turbos and internals are almost completly different correct?

 

i know theres tons of difference from the 2g to this,

 

I know people run up to 25psi on 104oct with stock internals.If you are on pump gas prob 21psi.

 

I heard 24psi max on 93 octane with a tune.

 

what octane gas are you going to run? i am sure your tuner will set the boost level for you while tuning. but its usually 23psi spike on 93

 

I've ran 21 - 22 psi on 91 pump and 30+ on 100 pump with stock internals besides cams. It all depends on what octane fuel your gonna use.

 

93 octane im thinking 22-23, with the arc induction box, and greddy ti-c what kinda power can expect?

 

whats up man, we got the same car and im from harrison, but anyways with a good tune, i've heard 24psi if you run on 93 octane.

 

I say 23 on 93, but I'd go no more than 22 on 93 to protect from fluctuations in gas qualities...but if you log you can tell what's going on with your car and run a bit more

 

sean ivey when my trust exhaust shows up

 

you will be able to find out what psi once u get tuned... every car is different so you have to take that into account