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Old 11-23-2016, 03:30 PM
Thunderherd Thunderherd is offline
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I think 6 psi is the max you want. I got the 6 to 9 and it was a little to much. Just pushes right on by my Edelbrock carb. Got another one that was like 3 to six or little bit less. And it works fine. I've got a 390 and a big cam. Got it at auto zone. And I wouldn't really worry about the gph. Just think. If you drove your car for an hour down the road, how much gas would you use. I don't think it would be any where near 35 gallons.
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Old 11-23-2016, 05:39 PM
Yadkin Yadkin is offline
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If you go electric you want to have one self-regulated at 5 psi. Most pumps are fuel injector rated and therefore much higher pressure.

You should also wire it to a relay, along with a "bump" switch rigidly mounted to the chassis to turn it off if you are in an accident. And you should have it lower than the tank to help it prime. Finally, beware, as the little buggers are noisy. Read my experience on these before you decide. I ended up doing away with all that to install an in-tank unit.

Regards to your shipping cost issues, is Amazon available for you? I've found that many of the venders I use sell through Amazon and this helps me save on shipping, especially when ordering a single item.
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Old 11-23-2016, 06:04 PM
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Frango100 Frango100 is offline
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Just got the mechanical pump of the engine. It has a year stamp of 2010, so its not that old yet and most probably not used much. This is a completely sealed pump, so no repair possible. I could choose to put an inline check valve just after the pump, so that the fuel line will stay primed all the time.
I saw some electrical pumps for carburator use, but wonder how reliable they are. I didnt see any well known brand overhere. They sell some pumps for motor cycle applications with the right pressure rating, which seem to be of good quality. They have a flow rating of 50Ltr/hr. (approx 13gallon/hr), which should be enough for normal driving. I only wonder if it will be enough during hard acceleration (which i normally never do)
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Old 11-23-2016, 07:20 PM
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byersmtrco byersmtrco is offline
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If you can possibly by the pump in the brand Carter, I recommend that. They're quieter - Less chance of the arm tapping on the eccentric cam.
They also have one without the bowl.
John Byers
1960 Convertible (Orig owner)
Pic of car with my son Justin (15 Y/O 6'1")
Poss 3rd Gen T/B owner
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Old 11-24-2016, 05:28 AM
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scumdog scumdog is offline
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Originally Posted by Frango100 View Post
[ They have a flow rating of 50Ltr/hr. (approx 13gallon/hr), which should be enough for normal driving. I only wonder if it will be enough during hard acceleration (which i normally never do)[/font]

On a long uphill run they might not keep enough fuel to the carb - and you'll find yourself slowing down until the fuel supply 'catches up'.
A Thunderbirder from the Land of the Long White Cloud.
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Old 11-24-2016, 12:39 PM
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Frango100 Frango100 is offline
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They sell the electric fuel pumps from Carter overhere. Their rated pressure is 5 to 9 Psi and flow rate of 50 Gph.
Anyone using an electric pump from Carter?
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Old 11-25-2016, 09:55 AM
pbf777 pbf777 is online now
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In order to establish your fuel delivery requirements in general terms: one calculates the weight gasoline to be approximately 6.3 +/- pounds per gallon, your engine will require approximately .5 lbs. per hour times horse power produced at wide open throttle, so 300hp X .5 lbs. of fuel = 150 lbs of fuel 6.3 lbs. per gal. = approximately 25 gallons per hour fuel delivery requirement +/-.

We are keeping this very general in values, for the purpose of only attempting to establish the fuel delivery requirements for the purpose of selecting appropriate fuel pump, and not attempting to make a science project of it.

Your fuel pump should be capable of performance in excess of this value (25 gal.) as one should not assume 100% volumetric efficiency as installed. Or, just don't push the pedal down any longer than the supply in the fuel bowls of the carburetor will permit. Scott.
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