Al, last ? before I send you my ecu for a update . Is the hallmans mbc supposed to drop boost at high rpm like 7000? mine dose. I just dont trust this thing I am thinking I will just get the high boost map and a retune for the updates all at once.I have been afraid to set the hallmans to 19 psi it is set on 17 or so right now. That and I am like the only one with the bushur TBE that gets the check eng light for the rear o2 and yes I have the cat. so I wont know If I get a prob. Thanks for the reply I know your a busy guy.

 

i say turn it up!!! i have Al's base flash w/ the hallman MBC holding 25psi from 4k to about 6k then tapers to about 21-22 at 7800RPM. i would check all your exhaust connections & check for leaks as well.

 

20.5 - 21 psi peak is a godo target - some cars can peak at 22

 

I will try it thanks.