94EclipseGST
15+ Year Contributor
- 334
- 0
- Sep 1, 2003
-
Des Plaines,
Illinois
I've done all of the stage 1 & 2 mods. I've also upgraded to a B16G turbo. Got a MAFT and stage III dsmchip. FMIC is in the closet and will be installed this summer for sure.
Anyway, no matter what I've done (including fixing all boost leaks) I run rich. So much so that I bog at high RPMs. Aside from my sidemount heat soaking, I'm wondering if it could be that I do not have an aftermarket fuel pressure regulator.
I have a Walbro 255, 550cc injectors.
So, the question is, when do you absolutely need a non-stock fuel pressure regulator? Is this what is causing my problems?
Thanks in advance.
Anyway, no matter what I've done (including fixing all boost leaks) I run rich. So much so that I bog at high RPMs. Aside from my sidemount heat soaking, I'm wondering if it could be that I do not have an aftermarket fuel pressure regulator.
I have a Walbro 255, 550cc injectors.
So, the question is, when do you absolutely need a non-stock fuel pressure regulator? Is this what is causing my problems?
Thanks in advance.