hi guys,
ive got an S13 with an RB20DET in it, and its got a fuel issue of some sort.
heres the mods.
RB20det manual with:
RB25 turbo
Twin dump
3" dump back exhaust
600x300x76 FMIC
Bosch 040 intank pump
now i used to have an XR6 turbo pump in there, and i could run 16psi no problem. it went fairly hard too. but it died last week and i put a bosch 040 intank pump in. i also went through a water temp sensor issue too, but that all fixed and the car is running sweet, except if a go above 9psi, it leans off. if i set the boost controller to 8psi, car runs perfect all teh way to 8000rpm till it hits the limiter. but anymore than this, and it leans off around 6000-7000 rpm and starts to pop and stutter. and i get off it, cuase i dont wanna blow it up....
so whats the deal? i think maybe the fuel reg is fooked, but i dont wanna buy a new one if this is not my problem. i also have a new fuel filter in there too...
thanks in advance