Electric fuel pump choice?

hound dog · #1 (**permalink**) 06-17-2002, 02:05 PM

I'm about ready to pick up an electric fuel pump for my cobra buildup and I was wondering if any of you might have recommendations. What do you like, Holley, Borg Warner, Summit? How about fuel filters, the replacable kind or the ones with the cleanable elements. How many of you run a pressure guage in the line?
h dog

wilf leek · #2 (**permalink**) 06-17-2002, 03:52 PM

H dog - I'm running the Carter pump. Works fine, keeps fuel pressure up OK at WOT (observed on chassis dyno). Noisy tho'.
I have a cleanable filter on the suction side, mounted where I can see and get at it easily, plus filter before carb.
Pressure guage under the hood, only really used for setting up and the check mentioned above.
HTH

cobra427mnsi · #3 (**permalink**) 06-17-2002, 04:05 PM

Hound dog

When selecting the pump, check out how the pump pumps. The first pump I bought was a Holly. It had a rubber diaphram and a solenoid that activated it. The contacts that actuated the solenoid burnt out in no time. Then went with a Carter pump that has an electric motor (rotating) that drives a pump. No contacts to burn out. It is a bid noisy, but once the engine is running you can't hear it anyway. Has been running for several years now, no problems.

Paul

Cobranut · #4 (**permalink**) 06-17-2002, 07:16 PM

HD,

I'm running a Mallory Comp 140 pump, with a Mallory return-style regulator to the tank sump. The advantage to the return system is it keeps the fuel cooler, and is easier on the pump than a dead-head regulator. It also allows use of a larger capacity pump to help keep up with demand at WOT.

SERPNTE · #5 (**permalink**) 06-18-2002, 02:20 PM

I was in the hunt for the 'right" fuel pump and research + this forum lead me to a Carter. I also added a relay to deliver max voltage to the pump. Very pleased with the results. Be prepared when you first throw power to it - this pump is LOUD! A bit shocking when in your closed garage with the car on jack stands. On the road it is not a problem but it is LOUD!

hound dog · #6 (**permalink**) 06-18-2002, 08:28 PM

Thanks for the comments guys

I think I remember Turk saying that he had to replace a couple of Holley pumps, so with the comments I've seen here I'm going the Carter route. Would some insulation between the pump and the frame rail quieten things down a bit?
h dog

SERPNTE · #7 (**permalink**) 06-19-2002, 01:46 AM

Dog

The P4600HP, 100 gph, 7 psi ($72 from SummitRacing.com) includes rubber mounts for the included bracket. I have read of others who have then rubber mounted the bracket to the frame (search Shop Talk for electric fuel pumps), but I have never heard one mounted like that. I did not have the room on my installation to add the additional mounting rubber. Good luck to you,

Serpnte

dalola · #8 (**permalink**) 06-19-2002, 06:07 AM

H Dog,

A few thoughts for you. Don't try to save a buck with your fuel system. Basically, you get what you pay for. I recommend Barry Grant pumps and regulators for carburated engines. Don't overlook the importance of the regulator!! And a gauge is essential! Plumb it as close to the carb as possible. BG usually recommends 6-7 psi. I've found the Holley's do not keep consistant pressure. Also, consider a return type pump, if your tank is plumbed for it. Choose flow capacity based on your engines needs. I little extra time and money spent here is well worth it.
Best of luck to you.

Dave

Chad Johnson · #9 (**permalink**) 06-19-2002, 06:23 AM

For constant use I like the Aeromotive "street rod" pump that puts out 150gph (good up to 750 hp). Many of the other pumps are not designed to be operated for continuous use. Take a look at it http://www.jegs.com/cgi-bin/ncommerc...47&prmenbr=361

Good luck