well after 3 different pusher pumps i decided to get serious about a fix. i looked at the fass system and although it looks to be a great product, i don't like the thought of another electric pump to fail.
i thought about the old p-pump trucks and you almost never hear of a lift pump problem from those lp's.
as one of the bonuses to the www.dieseldynamics.com camshaft is the fact that it has the lift pump lobe on the cam shaft. i was a little worried about the high pressure from the 12v lift pump so i called down to diesel dynamics so make sure i wouldn't hurt my hotrod vp-44 from them. keith told me not to worry, they had put 20k+ miles on a stock vp-44 and never had a problem with the high pressure.
so i ordered one up and installed it. the whole thing cost $160 inlcuding freight. the only thing you need to get is a adapter plate that goes in between the block and the pump. i did have to remove one of the ecm bolts becuase it hit my a/n fitting on the top of the pump.
i started my truck and it just buries my 30psi guage at idle. no matter what i do it will not budge off of 30psi. keith told me it will make 50psi at idle and about 60psi at 3000rpm. i can't verify that but i know it's over 30psi
granted my truck is only making about 550rwhp right now, i still have in my baby injectors. but i can't see why anyone would need 1/2 lines. my stock lines will flow plenty of fuel. my last setup was the holley black pump and the stock lp, when the setup was new it would run 30psi at idle and drop down to 10psi at wot. i almost upgraded my lines to try and help my pressure drop. i now see i just didn't have enough pump.
i will keep everyone updated as to how it performs. it quieted down my truck a ton. i will be putting in my monster injectors for may madness and we will see if i can pull it down to 30psi.
jim
i thought about the old p-pump trucks and you almost never hear of a lift pump problem from those lp's.
as one of the bonuses to the www.dieseldynamics.com camshaft is the fact that it has the lift pump lobe on the cam shaft. i was a little worried about the high pressure from the 12v lift pump so i called down to diesel dynamics so make sure i wouldn't hurt my hotrod vp-44 from them. keith told me not to worry, they had put 20k+ miles on a stock vp-44 and never had a problem with the high pressure.
so i ordered one up and installed it. the whole thing cost $160 inlcuding freight. the only thing you need to get is a adapter plate that goes in between the block and the pump. i did have to remove one of the ecm bolts becuase it hit my a/n fitting on the top of the pump.
i started my truck and it just buries my 30psi guage at idle. no matter what i do it will not budge off of 30psi. keith told me it will make 50psi at idle and about 60psi at 3000rpm. i can't verify that but i know it's over 30psi

granted my truck is only making about 550rwhp right now, i still have in my baby injectors. but i can't see why anyone would need 1/2 lines. my stock lines will flow plenty of fuel. my last setup was the holley black pump and the stock lp, when the setup was new it would run 30psi at idle and drop down to 10psi at wot. i almost upgraded my lines to try and help my pressure drop. i now see i just didn't have enough pump.

jim
Last edited by a moderator: