BurrisWill

Hey fellers, just a quick question, what fuel pressure are the 2nd gen piston fuel pumps good for? Thanks

ofcmarc

Somewhere around 25-30 psi IIRC. A bit much for a VE without a regulator....

Benjamin b2

enough to blow the front seal out of the VE, dont run it without a regulator or it will make a mess, been there done that

SOOT4BRAINS

There is a piston lift pump available from cummins that puts out around 18 psi. My friend is running ddp 3's and he cant pull the fuel pressure gauge down past 7 psi at wot. He has maxed pump and no afc. Heres a link to the thread with the part numbers on it. https://www.dieseltruckresource.com/...ad.php?t=93722

crewcabxlt

i run the above mentioned low pressure piston pump,got at local tractor dealer. works excellent. bc,s write up is excellent also.

The_Head

Yep me too. I got mine from Case IH. I got raped on the price, but it had to be done.

archer39

One thing that you should remember though if you put on the piston style pump is that if it should fail the truck will not run like like it would with diaphragm pump.

Ace

True, but the failure mode is graceful - It will eventually just get tired. If you have a fuel pressure gauge you'll notice declining pressure after about a half million miles.

archer39

True, but not all have a fuel pressure gauge.

Just trying to help out those that my not be aware.

Ace

People should also be aware the running the VE allowing it draw it's own fuel and filling the crankcase with fuel are two very bad ideas that happen unwittingly to people all the time running stock lift pumps. Running without a fuel pressure gauge is another bad dea that allows that to happen.

The only good thing to be said about the stock lift pump is it's easy and inexpensive to change.