General Category > Quadrajet Carb Talk and Tips
Fuel pressure issue
Too Fast:
Well crap. I've already ordered, I may cancel. I'm debating about going another way. The more research about owner satisfaction with this pump, the more I wonder about it. Not a good thing. And I can't quickly find many reviews, another red flag.
Cliff Ruggles:
I love everything about my sumped tank/electric pump behind the tank/8an line-fitting everyplace/return system set up except the look. I tucked it up as high as possible but I still have a regulator and lines visible from behind the car and under the hood.
Having an external pump sure makes it easy to get to when there are issues, which happen about every 20 years since making it a return system set-up.
Since the pump is a gerotor style it is quiet and reliable. Vane pumps are a lot more popular (less expensive), but they can be pretty noisy.
There is some pretty "muddy water" when it comes to this topic. I have NEVER had any success trying to have a fast street car with any type of mechanical pump sucking thru 14' or so of stock fuel lines. Once I took steps to hook hard and run fast fuel delivery issues reared their ugly head. With that said I've had folks come on and claim they have ran 10's with "stock" fuel pumps pulling thru stock 5/16" fuel lines, etc.
I often wondered if they meant 10's in the 1/8th mile or a 200 yard drag race on the street someplace, but for sure ALL the vehicles I've owned, built, set-up or helped folks with REQUIRED significant improvements in fuel delivery once we started making big power and running quick with them at the track.
I haven't looked into it lately but I've heard there are some really nice in tank systems and even baffled tanks available for some cars to use them. That would be a nice clean look and for sure I'd go that direction with my car if doing all of this over again........Cliff
77cruiser:
I've been using this pump for about 3 yrs. with no problems. The install isn't quite as neat as I would've liked.
https://www.aemelectronics.com/products/fuel-delivery/high-flow-fuel-pumps/340lph-high-flow-in-tank-fuel-pump-offset-inlet
old cars:
--- Quote from: 77cruiser on September 17, 2021, 10:52:48 AM ---I've been using this pump for about 3 yrs. with no problems. The install isn't quite as neat as I would've liked.
https://www.aemelectronics.com/products/fuel-delivery/high-flow-fuel-pumps/340lph-high-flow-in-tank-fuel-pump-offset-inlet
--- End quote ---
So you run a 40psi pump for your carburetor?
77cruiser:
I have the return regulator set for 6.5. I should have added that. :D
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