Electric Fuel Pump Noise Level

[70RoadRrunner]

I have a Holley Blue pump in my 70 RR.

Short piece of 1/2" hose to inlet
Short piece of hose from outlet to tube
1/2" aluminum tube to regulator in engine compartment

I know electric pumps are noisy but am wondering if I am getting a resonance out of the aluminum tubing.

Anyone have experience with sound difference between aluminum tubing and running hose?

I have the parts to replacement the fuel tank and am considering changing the fuel lines as well if it will reduce the sound.

I know this is a loaded question as noisy is a subjective term.

Thank you in advance.

 

[493 Mike]

The empty tubing may be noisier than rubber but the fuel would dampen the sound. I ran 2 blue pumps for years and they are screamers! I went to a Holley rotor pump and it is much quieter.
Mike

 

[70RoadRrunner]

Thanks 493.

Everything I have read indicates this pump is normally noisy.

I will try to record the pump running to see what you think.

Its probably as good as it gets.

Fuel pressure is fine and motor runs great.

 

[Fran Blacker]

Do you use rubber insulated clamps to mount the tubing?

 

[70RoadRrunner]

There are clamps that are plastic/rubber coated but I am not sure how much insulating they do.

I'm thinking about running the outlet of the pump through a short length of hose into a bucket to see how quiet it can possible be.

It wont be under pressure but it will indicate a best case scenario.

 

[threewood]

The pump is just loud. Even with a rubber insulator under the mount and rubber behind and around the lines, my black pump sounded like a garbage disposal lol.

 

[33 IMP]

Definitely agree with 493 Mike. I have a holley blue on one car, just replaced a Paxton 150, with a trick flow 140, (the Paxton was way too hit-or-miss if it would prime) on the car with 1/2 alum fuel line. The monster Mallory 250 g-rotor is much quieter than the vane pumps, and mine has been LOTS more dependable.
The downside is that the Mallory g-rotor are insanely high priced now.
If you want quieter, I would try the Holley g-rotor version, though I don't have personal experience.
The noise my vane pumps make doesn't bother me, can't hear the pumps over the exhaust when running.

 

[70RoadRrunner]

Thank you everyone for confirming what I already believed to be the case.

I'll probably just live with it as it works fine and there is no reason to replace a working part with so many other cool things to buy.

 

[Dennis H]

It’s what they do.