ok how much boost can i run with stock injectors maf with my t3t4 st up . i will have: wide band to monitor and apexi avcr to control boost and watch duty cycle of injectors . Any help would be greatly appreciated .

 

probably shouldn't run more than the factory 7 psi until you get injectors and a way to tune it.

 

stock ECU, stock motor, around 12-13lbs... any more than that without a tune and you'll start leaning out...

if you have a AFC and are able to "tune" with it (if that's what you want to call it), then the max boost a "stock" SR can handle is around 17-18lbs, then the OEM headgasket starts to fail......

 

safc is tuning.... when you have 550 and below injectors..... its all i have used on my KA-T and my car has outlasted those guys cars who go and spend 10000000 on standalone for a basic setup.... one they either blow it and or they never get it running.

 

im going to gt one i just wasn't going to say anything i know peoles who use it on there 2jz motor to get them through until they can fully upgrade there other parts and go stand alone. As long as i can get 8 psi i think ill b ok with that like in my op im using the wide band to monitor air to fuel and the avcr boost controller to watch duty cycle and control boost . So i don't go over board . Thanks for the help and input .

 

Well just wanted to give up date .Im running 11psi at 11/1 afr With 94 octane gas . So i believe 12 to 13psi is attainable .Stock everything except 255lpf walbro . I may put my aeromotive fpr on this weekend just as a safety feature