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Old 02-13-2016, 08:05 PM
Mike69Cam Mike69Cam is offline
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Default Fuelabs pump issues

I own a '66 Chevelle with an LS3 bottom end, LS9 top end...It makes about 750 HP with 650LB torque. I drive this car usually 50-75 miles on the weekend. I don't race it anymore. We recently installed an ATL fuel cell and new fuel lines (wider gauge) to accommodate the HP. The pump is out side of the tank and has returns lines. The Fuelab pump is rated at 1000 HP and above. Under normal driving, it makes a lot of noise, which I hear is normal. When I run low on fuel from time to time, it cavitates...I then have to add fuel and then wait for air to leave the pump. Occasionally when tank is like 3/4 full, it will suck in air and I am on the side of road for 20-30 mins waiting for air to leave pump.

Question-Are these fuel pumps made for long drives? Is there a better brand that runs quieter and more reliably on longer drives?
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Old 02-13-2016, 11:16 PM
MtotheIKEo MtotheIKEo is online now
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Default

Sounds more like a fuel supply issue than a pump issue. I'd correct the issue of it sucking air as that will make any pump struggle.
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Old 02-14-2016, 01:34 PM
Mike69Cam Mike69Cam is offline
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Default In Tank

Thanks...Agreed...it looks like we are going to move the pump inside the tank and make sure we have the right "gravity" set up. Keeping pump submerged and cooler seems to work best. Also runs a bit quieter while in the tank.
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