'Red' Holley Fuel Pump

[kam]

Question.

I added a red holley pump inline to a new 3/8 fuel line plus am still running the pump in the tank. Has anyone done this?

Also, is there a better way?

Will the fuel pump's life be shortened because it must draw fuel up through the top of the tank?

Thanks,

Kerry

[lincolnolli]

Hi Kerry!
I'm running exactly the same setup.Red pump up front,no problems whatsever.
Technically it even helps the oem pump..
Olli

[kam]

Olli,

Thanks! Nice to know it works well.

Do you have problems with noise? The new pump I installed rattles the entire car. I may try tightening it up more and or adding some more rubber layers between the sheet metal and the pump bracket.

Kerry

[lincolnolli]

Hi Kerry!
Well,i expected the loud noise they are known for.But mine's really quite!
This is a used one from a friend,maybe they run in with time?
The rubbermats helped some of my customers big time.
Oh yeah:Don't bolt the pump to the body,like holley wants you to!
I think that causes the noise in the first place!
There are rubber pieces that have screws "melted/baked" in on both sides.Like some motormounts,you know.Use this stuff.
I think MSD sell them for there boxes too.

My pump lays somewhat free in a homemade rubber box..Not really nice,but effective..LOL..

Olli

[72 SS PNL]

try mounting it on some water treated balsa wood , with the rubber pads or isolators

but yeah holley pumps are known for being loud

[Sirshredalot]

To tell you the truth...It will hurt things. Maybe not immediately but it will.

Say you holley red pump will PULL 90 GPH free flow with a 3/8 line.....now choke it off with a 1/4 pickup that is inside the factory fuel pump and you will starve the Holley for gas....making it work harder...even if the factory fuel pump is still working.

Even worse if the factory pump is dead or off.

The holleys do make lots of noise...I use the MSD 7AL mounts to isolate them from the frame...and I put a strip of rubber between the pump and the clamp...that way it at least wont transfer noise into the chassis.

God bless
-Shred

[kam]

Shred,

What would you recommend then in place of using a Holley pump?

Thanks for the info on the mounts, I'll try that.

Kerry

[Sirshredalot]

The holley pump is fine....I just would recommend removing the factory fuel pump from the system....all you would need to do is replace it with a piece of rubber hose or a piece of steel/aluminum line with a few compression fittings.

There are quieter pumps out there....geroter pumps like a mallory is a very quiet, but the holleys perform well and take the abuse.

God bless
-Shred

[72 SS PNL]

ive known alot of people to use a stock pump , and use a lot higher volume pump after it

the stock pump will out flow the suction of the red pump , which is why small pushers work , how ever if its something you are really wooried about you can run the stock pump into a small surge tank mounted a little higher than the red pump

unless you are gonna have a very high horse power motor , i think youll be fine with the stock feeding the red

[Ishiftem]

Yeah, don't worry about the stock pump starving the Holley pump. Unless your fuel demands are significant. Also, depending on where your holley pump is located, the stock pump could be helping. Most aftermarket pumps are good at pushing fuel but, not at pulling it. That's why it is usually best to mount the pump in such a way that it is gravity fed which also usually requires some type of sump be added to the tank.

[superspirit]

ok guys look at it this way ford used a low pressure lift pump in the tanks and a high pressure pump up on the frame to supply the high pressure fuel injection system in their trucks it is a very dependable setup, so you are on the right track

[vegon71]

I have never heard of the dual pump set up like that but sounds like it should work. I scored a Holley Red pump at a swap meet last summer for $5.00, the guy said it didnt work when he bought it at a swap meet, so I took it home and found out it was just stuck from sitting (it was dry) works great now

[res0o7eb]

... Ford used a low pressure lift pump in the tanks and a high pressure pump up on the frame to supply the high pressure fuel injection system ...

I have never heard of the dual pump set up like that but sounds like it should work.

Have you heard of a Cosworth Vega - one of the first GM cars with EFI? Yep, that's how GM did it.

I scored a Holley Red pump at a swap meet last summer for $5.00, the guy said it didnt work when he bought it at a swap meet, so I took it home and found out it was just stuck from sitting (it was dry) works great now

Yes, nice score on the Holley pump and good troubleshooting, too.

[Rickracer]

I build a plate to mount the pump to, then mount the plate to the body on 3 bolts with grommets in the sheet metal and flat washers on each side, so the pump mounting plate is totally isolated from the body. You can even use grommets and flat washers in the mounting plate and the body for double isolation. Works great, makes em almost silent!!

[ck_carnut]

... Ford used a low pressure lift pump in the tanks and a high pressure pump up on the frame to supply the high pressure fuel injection system ...

I have never heard of the dual pump set up like that but sounds like it should work.

Have you heard of a Cosworth Vega - one of the first GM cars with EFI? Yep, that's how GM did it.

Yep. Also how BMW did it through the mid-80s. Not suprising, as the Bendix and Bosch systems from the era are very similar.

-=Chris