fuel pump question

[santos]

Need to replace fuel pump in my 92 bolt on. I have heard different people tell me that I need to upgrade regulator, and others say stock is just fine. what is stangnets opinion on this? plan on putting walbro 255 in the tank

thanks

 

[Steel1]

Stock regulator is fine.
I still run a stock regulator on my 393w.

 

[Dan02gt]

The stock regulator will be fine. When you say 92 bolt on. Do you mean the car has basic mods? If so the 255 is way over kill.

 

[santos]

every bolt on, except heads and cam ( coming later) got a better suggestion? I did assume a 255 is overkill, but that what I have been hearing to put in

 

[Mustang5L5]

255 is overkill. 150 or even 190 would be more than enough.


When I went from a 88lph to a 190, my fuel pressure went up 3-4 PSI. Fortunately I had a kirban adjustable so I was able to lower it down, however the lowest setting possible gave me 39psi. That's just my experience.

If I could of it again, I would install a 150lph pump, and that's with my future plans of TFS170 heads. I feel it's more than enough short of a power adder on the combo

 

[Dan02gt]

every bolt on, except heads and cam ( coming later) got a better suggestion? I did assume a 255 is overkill, but that what I have been hearing to put in

I'm still running the stock pump on my H/C/I setup. However, I know I'm past the limit of the pump and will be installing a 155 Walbro this weekend. I would recommend you do the same. No need to be pushing that much fuel through the system when you don't need it.

 

[santos]

thanks for the input , I appreciate it

 

[Blown88GT]

The 255 is good for up to 450hp.
http://www.eastcoastrollingthunder.com/jmiller/finject1.htm

 

[Boostedpimp]

Have ran the 255 on various cars that needed it and didn't need it and never had a problem