Thread: When to use an electric fuel pump?

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K.I.S.S----Keep It Simple Stupid! The stock (or improved) mechanical pump is the way to go until it becomes obvious that it won't do the job. Usually flow rate is not the problem, the stock pump has to "pull" the fuel against acceleration and often causes starvation. An electric pump mounted behind the tank and rear line in the tank fixes that problem. Not usually a concern on a street rod.

I would have preferred a mechanical pump, but when you pinch the frame on a '32 Ford, there is no room for a mechanical pump, hence the necessity of using an electric pump.

Good info, guys.

I have a tunnel ram set up on my Nova with (2) Edelbrock 500 cfm carbs. Again,street only and I have never had any issues or hints there of.

Now I am looking at going with a small block or big block blown engine in my Ford and really don't want to move over to an electrical pump either. Again, simply street duty with a little smoking the tires here and there.

IMO with aftermarket mech pumps flowing 110 gph or more @ 9# or more there's just no need for an electric pump for a carbed motor on the street.
Of course FI and limited space is another story.
I run a Holley mech. pump on my blown small block with dual Demon 650s and have never had anything close to a fuel delivery issue.

Originally Posted by bucs012

Good info, guys.

I have a tunnel ram set up on my Nova with (2) Edelbrock 500 cfm carbs. Again,street only and I have never had any issues or hints there of.

Now I am looking at going with a small block or big block blown engine in my Ford and really don't want to move over to an electrical pump either. Again, simply street duty with a little smoking the tires here and there.

Blown application, I would use an electric pump. Worst thing to happen is a lean condition in a blown motor. My .02