? about after Installing 255lph...
 

I finally got my Walboro fuel pump that i'm going to install tomorrow, i just wanted to know if the engine/ecu would react funny by installing the bigger fuel pump, i would think not considering it's the injectors that allow the fuel into the engine, but i would like to be assured that it won't make a difference for the time being.

Re: ? about after Installing 255lph...
 

naw it will be fine...

Re: ? about after Installing 255lph...
 

It will seem a little weird at first...my 255 raised my rail pressure considerably until I turned it back down...was hitting close to 65psi with no vaccum.

Re: ? about after Installing 255lph...
 

Did you have the HP one? The LPH ones don't normally have that issue with stock FPR.

Re: ? about after Installing 255lph...
 

Yeah, it's the HP model. I know it's more than I need, but I picked it up new off a friend for $10 :D

Re: ? about after Installing 255lph...
 

You need a higher capacity FPR. The return is not allowing enough bypass fuel to get to the tank.

I have an AEM, and I swapped out the dinky return fitting for the biggest one in the set.

Re: ? about after Installing 255lph...
 

Thanks guys! ;D

Re: ? about after Installing 255lph...
 

Once again, THANKS GUYS!!! ;D My pressure did go up to about 65psi witn no vaccum, so i turned it down to about 45psi, B&G regulaotr, although i'm really not sure what the optimal pressure should be! Any suggestions? I would like to think that once the car gets tuned that it will be adjusted then, but for now ???

Re: ? about after Installing 255lph...
 

Yeah, new fpr is on the list...for now it's just a b&m junker on a stock regulator that had the largest return fitting on it I could find.
Mine seems to like 45psi at wot (meaning no vaccum to the regulator), yours might respond differently though once you start tuning.