When To Change To A Electric Fuel Pump ?

With a carbed 460 stroker, say to 514, 545, is it nessessery to give up a mechanicl fuel pump to a electric ?

427HISS wrote:With a carbed 460 stroker, say to 514, 545,  is it nessessery to give up a mechanicl fuel pump to a electric ?

I don't think this is the section for this but,
Not unless it is well over 800 horsepower. There are high pressure, 6 valve, mechanical fuel pumps readily available however, a fuel pressure regulator is necessary.

I don't know how I placed the question here. Sorry about that.
Mods, feel free to move my thread.

I run electric fuel pumps more for the ease of priming and it is easier to isolate the fuel lines from heat.

In fast stuff it's easier to push fuel than pull it

I use a Carter M60882 on a 502. Around 530 hp and runs 11.50's @ 116 mph. I enlarged the inlet to 3/8 npt from 1/4 npt. I holds 5 psi from about half track on.

I have 1/2 fuel line to the pump and 3/8 to the carb. Seems to be enough.

I'd rather not have to use electric, just more possible problems. A lot of people think their cool, like a race car.
They can have so many issues compared to mechanicals,....and most are noisy. Too me, its an irritating, like the noise of a fax machine !
Same for the noise of a gear drive. "It sounds like a blower man". I say nope, the only good whine is,..... a blower.

Funny how all new cars have used electric pumps for the last 30 years

Well that's true, but there all internal and quiet. Think if everyone driving on public roads had Holley blue pumps, 3/4 of the cars would be broken down on the side of the road and the other 1/4 would be deaf. Electric fuel pump would be a last resort for me to.

Cars have had aluminum blocks decades and utill recently, aftermarket blocks have sucked.
To have a great and reliable electric system, their very expensive to plumb and to maintain.

A high quality mechanical pump is worry free for many years and almost no maintainance.

rmk57 wrote:Well that's true, but there all internal and quiet. Think if everyone driving on public roads had Holley blue pumps, 3/4 of the cars would be broken down on the side of the road and the other 1/4 would be deaf.  Electric fuel pump would be a last resort for me to.

Let's at least upgrade into the 90's? Holley blue is so 70's!

Their are avaliable intank pumps and quiet external pumps, it's not a big deal.

And simple EFI systems are getting very affordable.

My next street cruiser is going to forgo the atmospheric controlled metering device for a stand alone EFI system.

dfree383 wrote: Funny how all new cars have used electric pumps for the last 30 years

AA/Fuel Dragsters use a MECHANICAL fuel pump and they make about 10,000 horsepower.

I don't think there is a small lightweight electric fuel pump on the planet that will keep-up.

Though, this original question was probably concerning mechanical, DIAPHRAM type fuel pumps.

rmcomprandy wrote:

dfree383 wrote: Funny how all new cars have used electric pumps for the last 30 years

AA/Fuel Dragsters use a MECHANICAL fuel pump and they make about 10,000 horsepower.

I don't think there is a small lightweight electric fuel pump on the planet that will keep-up.

Though, this original question was probably concerning mechanical, DIAPHRAM type fuel pumps.

I'm thinking that's a little beyond the initial question....

dfree383 wrote:

rmcomprandy wrote:

dfree383 wrote: Funny how all new cars have used electric pumps for the last 30 years

AA/Fuel Dragsters use a MECHANICAL fuel pump and they make about 10,000 horsepower.

I don't think there is a small lightweight electric fuel pump on the planet that will keep-up.

Though, this original question was probably concerning mechanical, DIAPHRAM type fuel pumps.

I'm thinking that's a little beyond the initial question....

Well Dave, you did put "funny" and "car" in the same sentence.

rmcomprandy wrote:

dfree383 wrote: Funny how all new cars have used electric pumps for the last 30 years

AA/Fuel Dragsters use a MECHANICAL fuel pump and they make about 10,000 horsepower.

I don't think there is a small lightweight electric fuel pump on the planet that will keep-up.

Though, this original question was probably concerning mechanical, DIAPHRAM type fuel pumps.

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Correct, typical street pump.

What are some heavy duty pumps that will stand up to high RPM's, power, etc ?