i tuned my ix on pump today (91) octane. while we were doing the tuning, street tuning... at 290 the car back-fired because we hit 26 lbs of boost on 91,

so i guess we have to thank mitsu for good safety feautres

 

^ or smack yourself for doing that to your car.

 

22psi is "roughly" the value you'd get assuming the entire boost control system is stock. As soon as anything is altered, including exhaust and other components, this changes.

I just wanted to point this out.

 

at first i left mine at 255 and I was hitting 24psi in the 270load area

 

hitting boost cut is better then over boosting on a 5th and/or 6th gear pull going uphill with 4 pers in the car!!!! DO NOT set the timer/boost table to the max they re here for a reason... It is a great function of our ECU just set it a little higher to the max value you are hitting

 

And based on the data from the JDM map it seems to be partly RPM dependent as well. 250 load at 3500rpm seems to be a different boost level than the same 250 load @ 5500rpm.