vetteboy
NAXJA Forum User
- Location
- morganville, nj
Re: THe NAC Lots-O-Post Thread
It sounds like a really whiny regular fuel pump, except the fuel pump in this application just runs at 100% all the time and shouldn't modulate with the engine.
Unless what I'm hearing is the CP3 pulling fuel *through* the in-tank pump. It's basically only at idle and up to half-2/3rds throttle that it makes the noise; at WOT it shuts up. So if the lift pump is struggling and making noise, but the CP3 pulls harder through it and lightens the load, I guess the noise could change.
It sounds like a really whiny regular fuel pump, except the fuel pump in this application just runs at 100% all the time and shouldn't modulate with the engine.
Unless what I'm hearing is the CP3 pulling fuel *through* the in-tank pump. It's basically only at idle and up to half-2/3rds throttle that it makes the noise; at WOT it shuts up. So if the lift pump is struggling and making noise, but the CP3 pulls harder through it and lightens the load, I guess the noise could change.