Modifing FPR for Walbro pump??

[djrenok]

So i just bought a Walbro 255 HP pump and RC 550 injectors for my setup. I was told i need to drill my FPR to handle the pressure. I have a blox racing Adj FPR. Do i need to do this step with the new pump??

 

[--<EM1>--]

no. the stock FPR is the one you would have needed to drill. since yours is adjustable. youll be good.

 

[djrenok]

oh alright cool......and if i was to tap my rail for a pressure guage is that fine,???

 

[oc_civic]

no. the stock FPR is the one you would have needed to drill. since yours is adjustable. youll be good.

depends on the return orifice in the FPR..what you NEED is a FP GAUGE so you can actually see what the pressure is..

most aftermarket FPRs are fuel preassure risers and wont lower it.. you also need to figure otu what the fuel pressure needs to be for your application..

 

[djrenok]

whats a good pressure for 550 injectors??

 

[got traction]

hrmmm...im runnin a stock fpr and a walbro fuel pump...didnt modify s**t for it

 

[--<EM1>--]

depends on the return orifice in the FPR..what you NEED is a FP GAUGE so you can actually see what the pressure is..

most aftermarket FPRs are fuel preassure risers and wont lower it.. you also need to figure otu what the fuel pressure needs to be for your application..

i can't remember but didn't you make a DIY about drilling the stock FPR? i tried searching but couldn't find it.

 

[Astheros]

i can't remember but didn't you make a DIY about drilling the stock FPR? i tried searching but couldn't find it.

http://www.clubcivic.com/board/showt...=fuel+pressure

 

[--<EM1>--]

link didn't work ant. but oh well.

 

[lkailburn]

http://www.theoldone.com

-Luke

 

[Matt.]

you really don't need a fpr, cause most tuners will set it to stock spec anyways.

 

[oc_civic]

you really don't need a fpr, cause most tuners will set it to stock spec anyways.

no.. not with a high output pump..

 

[slowhatch]

hrmmm...im runnin a stock fpr and a walbro fuel pump...didnt modify s**t for it

How long have you had it for? I've been told the high pressure Walbro's push too much fuel and the stock fpr can't keep up.

 

[oc_civic]

i think there are a few different versions of the same pump.. and one is a high pressure pump and that is the one you need to adjust the fpr with