Quadrajet Accelerator pump; Standard vs HP?
Thread Starter
Burning Brakes
Joined: Mar 2016
Posts: 1,008
Likes: 163
Quadrajet Accelerator pump; Standard vs HP?
Hey guys, I've rebuilt my quadrajet and it runs better than before, but I still have a couple weird stumbles at low RPM (and occasionally at higher RPM). One of the only things I didn't replace was the accelerator pump. I plan to purchase one from Cliff's High Performance since his are proven to work in fuel with higher ethanol levels. He sells a Standard and a High Performance. How do I know which one I need? My engine isn't stock (Brodix aluminum heads, Lunati 268 cam, performer RPM intake), but I would necessarily call it high performance either.
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
Hey guys, I've rebuilt my quadrajet and it runs better than before, but I still have a couple weird stumbles at low RPM (and occasionally at higher RPM). One of the only things I didn't replace was the accelerator pump. I plan to purchase one from Cliff's High Performance since his are proven to work in fuel with higher ethanol levels. He sells a Standard and a High Performance. How do I know which one I need? My engine isn't stock (Brodix aluminum heads, Lunati 268 cam, performer RPM intake), but I would necessarily call it high performance either.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
I'm not sure what a high-performance accelerator pump is???
I definitely would go with the ethanol-capable seal; I've seen several with common synthetic rubber that absorbed the ethanol, swelled up and just fell off the piston. Then you had NO accelerator pump action to assist with starts or WOT actions.
I definitely would go with the ethanol-capable seal; I've seen several with common synthetic rubber that absorbed the ethanol, swelled up and just fell off the piston. Then you had NO accelerator pump action to assist with starts or WOT actions.
