Hello all, I just ordered 450 injectors from RMW and was wondering if anyone has the same or similar and if its needed to upgrade the fuel pump?

 

My understanding is that the Factory Pump is good to a little beyond 500+, so i think you are good.

 

what other upgrades do you have? you shouldnt need to upgrade the fuel pump in most cases.

rmw also has their own forum now. the guys over there are usually very helpful.

 

I sent an email to Jan at RMW, he told me the stock fuel pump is good to 300 WHP. So I'm good.

 

I run the RMW Dominator Cam, 450cc injectors and RMW tune on the stock pump with no issues. FYI, last week I did replace the fuel filter (2006 with 40k) and it was filthy. I am sure that it was, at the very least, a little bit restrictive. I did notice I gained back a little burble and pop.

 

Since the question has been answered I'll just throw this out there as a reference point:
OEM fuel pump flows 60-62 psi, even with my setup of 550's running 85% duty cycle @ WOT I've never seen more than a 47 psi demand at the rail.

You'd prob. have to run a 600+ cc injector at 100% to need more than an OEM fuel pump, or there abouts.