i had my car flashed this month and my boost is sitting at 22psi dropping only 1-1.5psi by redline. is this too high for 91 pump ?
if i were to turn it down, would my tune/flash be off?
thanks for any input.

 

get on a dyno and check your afr, or get a datalogger and check for knock. It does seem a bit high to me.

 

I run 22psi on 91 at high altitude. 11.5-11.2 afr. Seems safe enough. Like Blitz said get it on a dyno to fine tune it.

 

Hey bro ..

You might be boost spiking,,,on the road. If you pulling your car from low speeds in a high gear you will get that. Its safe where its at, if you feel more comfortable turn it down a pound, to where it was tuned

mark
turbotrix

 

thanks mark, just turned it down to be on the safe side.

 

turn it up

 

Yea, break off the knob!

 

arp head studs installed on your evo??