ill be rebuilding my trans before i run that much of a tune. if i were to throw in a lift pump right now, would that feed me to much fuel? and should i wait for all these other things before i mod the regulatr?
LB7: Boost increase valve help?!
- Thread starter AubleAK
- Start date
ill be rebuilding my trans before i run that much of a tune. if i were to throw in a lift pump right now, would that feed me to much fuel? and should i wait for all these other things before i mod the regulatr?
Here's what's up:
Our CP3 (injection pump) has a small built in lift pump on the rear. This is higher than the fuel tank. Under high acceleration like drag racing launches, the pump struggles to suck in the needed fuel.
An external lift pump is usually mounted at tank level, and helps the factory lift pump.
HOWEVER, the lift pump doesn't actually do anything but feed the high pressure injection pump. Lift pump = 3 to 15 PSI pressure. Injection pump = up to 26,000 PSI.
A lift pump will not affect your fueling, HP, or mileage in normal operation. It's only useful for competition purposes to guarantee the factory lift pump does it's job. It can't "force" more fuel into the engine than the existing injection pump provides.
Our CP3 (injection pump) has a small built in lift pump on the rear. This is higher than the fuel tank. Under high acceleration like drag racing launches, the pump struggles to suck in the needed fuel.
An external lift pump is usually mounted at tank level, and helps the factory lift pump.
HOWEVER, the lift pump doesn't actually do anything but feed the high pressure injection pump. Lift pump = 3 to 15 PSI pressure. Injection pump = up to 26,000 PSI.
A lift pump will not affect your fueling, HP, or mileage in normal operation. It's only useful for competition purposes to guarantee the factory lift pump does it's job. It can't "force" more fuel into the engine than the existing injection pump provides.
well i think im guna go ahead and get the ppe lift pump.. when i drive my truck back to alaska from here in utah, im guna have some guys from fairbanks tune my truck and put some gauges in.. that will get me started for now. new tranny soon after that.