Like the title says. I am wonder what is the maximum size fuel pump I can run on the stock fuel pressure regulator without overrun. I plan on putting a walbro 255 on and wanted to make sure I wasn't going to be running overly rich at idle. I have no intentions of getting an AFPR so this is important.

 

You will be fine.

 

is this true? i would rather not run an aftermarket FPR either. at least not yet if i dont absolutely have to. i'll be running 750cc injectors with a 255lph pump on the stock rail and FPR if possible

 

Thanks... I am so used to the DSM platform I'm still learning how much all the Evo stuff maxes out at vs. having to upgrade everything on a DSM. It seems that the Evo was built to handle power pretty well, DSM's were not.


Apparently not ^^^. I was simply asking a question, not stating a fact.

 

no i was talking about Murf's post. simply putting "you will be fine" without any explanation doesn't seem to solid to me. i was hoping more people would chime in with some more expertise.