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Author Topic:   Electric Fuel Pump?
Billgear
Gearhead

Posts: 168
From: Concord,CA
Registered: May 2000

posted 02-02-2001 11:08 PM     Click Here to See the Profile for Billgear   Click Here to Email Billgear     Edit/Delete Message   Reply w/Quote
I installed a electric fuel pump made by summit. This thing is so loud. I can hear
it over my 2 chamber exhoust. I thought the
thing would turn off when pressure was reached, but it runs non-stop. Can i wrap it
with somehting to quiet it down?

Regards,
BillGear
www.289mustang.com

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Moneymaker
Moderator

Posts: 10921
From: Lyons, IL, USA
Registered: May 99

posted 02-03-2001 12:13 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
I would not recomend that Bill, as that would cause the pump and fuel to over heat. You can insolate it's mounting bracket and that will help. Vane type electric fuel pumps run constantly. That's why they require regulators.

------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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Billgear
Gearhead

Posts: 168
From: Concord,CA
Registered: May 2000

posted 02-03-2001 12:34 AM     Click Here to See the Profile for Billgear   Click Here to Email Billgear     Edit/Delete Message   Reply w/Quote
Thanks Alex,

Is there another type of electric pump for
a performance street car that doesn't run all the time. It's really annoying! I will try
installing a piece of rubber between the bracket and the frame.

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302Mustang66
Journeyman

Posts: 41
From: Virginia
Registered: Jan 2001

posted 02-03-2001 04:31 AM     Click Here to See the Profile for 302Mustang66   Click Here to Email 302Mustang66     Edit/Delete Message   Reply w/Quote
I'll be running 2 Holey Blue pumps on my 66. One for gasoline and the other just for the No2 system. I use a double sandwich bracket I made that uses rubber shock bushings to hold down the racket.

------------------
~~~~~~~~~~~~~~~~~~~~~~~~~
1995 Mustang
Midnight Blue
393cid 452hp off the bottle
NOS 250hp 2 stage
SVO T5
Steeda Stage3
Cobra wing
17x8 & 17x10 OZ wheels
Goodyear F1's
10.38et - 130mph on the bottle
~~~~~~~~~~~~~~~~~~~~~~~~~
And comeing soon!
1966 Mustang Coupe
White Pearl
302cid C4 Trans
9" 3.50 Rear
16x7 OZ wheels
BFG rubber

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Moneymaker
Moderator

Posts: 10921
From: Lyons, IL, USA
Registered: May 99

posted 02-03-2001 01:17 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Only the old "piston" type of pumps work on demand Bill. Like 240 A Stewart Warners, and the old AC units. I don't even know if they are still available?

------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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n2oMike
Gearhead

Posts: 654
From: Spencer, WV
Registered: Jan 2001

posted 02-04-2001 10:07 AM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
The best thing you can do for the fuel system in your car is to set it up with a return style regulator and return line back to the tank. I use the Mallory #4309 unit.

This will allow the pump to run MUCH quieter and WAY cooler.

With a "dead-head" regulator, the pump builds pressure in the line, then has to run at full pressure without moving much fuel. The fuel cannot circulate, and the pump runs at full capacity dead headed against the rest of the fuel system. You'll notice the noise build up when it first turns on... at first it is quiet, then quickly gets very loud as it dead heads.

The return style regulator doesn't "bottle up" the pump like that. It allows it to work at moderate pressure and circulate the fuel through the system. The lower operating pressure makes the pump run MUCH quieter, and the circulating fuel keeps the pump nice and cool. Pump life greatly extended with a return line.

I've run the same Mallory 140 pump on the mustang with a return regulator for 10 years now and many, many street and racing miles. A second Mallory 140 pump with a return style regulator is used with the nitrous system.

Another bonus of this type of regulator is when switching to race gas for a trip to the track, the existing pump gas in the fuel lines is easily flushed from the system!

Good Luck!

------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/motorcitymustang/cmml/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

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