fuel pump limits.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
fuel pump limits.
Im close to 400hp at the crank. And I run the stock fuelpump. I got no dip in fuelpressure when i hammer it. Am I running on "borrowed" time with the stock pump? Anyone else that run the stock pump and 400Chp?
And is the lt1 pump more powerfull then a stock l98 pump?
Thanks
And is the lt1 pump more powerfull then a stock l98 pump?
Thanks
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Our pump is a constant volume unit so I don't think there is a "borrowed time" issue here. Rather it's a matter of how much of the flow goes to the injectors and how much is returned to the tank.
If running under 50psi, you might bump fuel pressure to say 55psi and make a WOT run to see if pressure holds. That would tell you if there is plenty of reserve flow.
If running under 50psi, you might bump fuel pressure to say 55psi and make a WOT run to see if pressure holds. That would tell you if there is plenty of reserve flow.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Our pump is a constant volume unit so I don't think there is a "borrowed time" issue here. Rather it's a matter of how much of the flow goes to the injectors and how much is returned to the tank.
If running under 50psi, you might bump fuel pressure to say 55psi and make a WOT run to see if pressure holds. That would tell you if there is plenty of reserve flow.
If running under 50psi, you might bump fuel pressure to say 55psi and make a WOT run to see if pressure holds. That would tell you if there is plenty of reserve flow.
Im impressed with our tiny little fuel pump
Racer
Joined: Jan 2007
Posts: 252
Likes: 5
From: bethlehem PA
pump psi
i with stock motor freeflo exhaust kan n filter an c/chipdont understand. if i up my fuel psi with stock injectors, can this be done. i have an 85 vet. how do i up the fuel psi. the stock inj. is 22, how far bigger can i go
