Originally Posted by 135Pats
I have no idea what's wrong with your meth kit, without more detail it's tough to trouble shoot. Talk to Shiv he'll be the best resource for this. There are some folks with N54s running 20psi or so midrange, some also run aggressive tapers that hold boost pretty high towards redline. Anything over 20psi and I'd have to think you're leaving the efficiency range of our stock units. 17.3psi seems a bit low for FBO+meth, i'm currently topping out at 17psi or so midrange without catless downpipes or meth.
When I installed the RB turbos,I got 17.6psi only,I dont know whats wrong with my car.when I back to the stock turbo,I can see 17.3psi in the datalog.
my pwm its work now,when I upload the new map.
I see my log the fuel trim all maxed sometimes,like the log.
I run the stage3,
start boost map1(60%) map2(85%)