KA24DET FMU & tuning question

[s13_ka24det]

Is a FMU needed if I am running a JWT ecu tuned for 370cc injectors and stock MAF? I want to make sure before I send my car out to get dyno tuned. Also, any good places near San Francisco for tuning?

[Chezedik]

Best thing you can do for this is search. But since I am in a good mood today, I will tell you that you should not need an FMU if you upgrade injectors. The point of the FMU is to block return flow from the injector rail, thereby raising line pressure, and forcing more fuel through the injectors. They are only good for low boost anyway.

[WDRacing]

Yeah, you definitly don't use bigger injetors and a FMU at the same time. Ditch the FMU and stay with the injectors.

WD

[s13_ka24det]

Thanks Chezedik & WDRacing. I just wanted to make sure before I hit the road.