new 255 pump, adj. fpr required????

[Tonys96Cobra]

My stock pump is toast, future plans include H/C/I and 6-9 psi blower. So I am going with the 255 Walbro. My car is completely stock right now, do I need an adjustable FPR now???? Thanks. (yes I searched, couldnt find a good answer)

 

[Grn92LX]

Go with a 255 high pressure since you plan on a blower.

No you don't need an afpr.

 

[RYC CUKR]

Like Grn92LX said go with the big pump since you have to replace the burnt out one. Especially since you are planning on a power adder. While it is nice the AFPR is not required when going with a larger pump.

 

[SamSnyder]

I disagree. Although the pumps are supposed to put out stock pressure out of the box, the Walbro 190 I installed on my GT40/E303 motor was off by a fair amount and gave me idle issues. The pressure was pretty high at idle, causing it to be soft and unstable. I installed an adj. FPR and gauge, and dialed it back closer to stock for daily driving.

 

[vristang]

I disagree. Although the pumps are supposed to put out stock pressure out of the box, the Walbro 190 I installed on my GT40/E303 motor was off by a fair amount and gave me idle issues. The pressure was pretty high at idle, causing it to be soft and unstable. I installed an adj. FPR and gauge, and dialed it back closer to stock for daily driving.

I agree with that.

Somtimes the stock regulator cannot control the big fuel pumps.

Some guys have been just fine though.

jason

 

[HISSIN50]

Yep - another vote for the possibility that the pressure will go up a little bit. Enough to matter? Gotta wait and see since the pumps dont seem to all flow the same.

Good luck.

 

[Tonys96Cobra]

I guess I will just install it and see how it goes! Thanks......