Are In-Line Pumps Noisy?

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01-09-2007, 05:06 PM

WLingle92lx

3rd Gear Member

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Join Date: Feb 2006

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Posts: 604

Are In-Line Pumps Noisy?

I am going to buy either a NOS T-Rex or A Holley In-Line Pump.
How loud are these pumps mounted to metal not rubber?
Is it good to leave these pump running all the time?

01-09-2007, 05:09 PM

93must

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Join Date: Jun 2006

Location: Oregon

Posts: 598

RE: Are In-Line Pumps Noisy?

My vortech came with one. It is a little noisier than the stock pump. Mine came with rubber washers to mount with. I am taking mine off the car and selling it if you are interested? Its only got about a 1000 miles on it?

01-09-2007, 05:10 PM

shaners90lxhatch

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Join Date: Sep 2006

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Posts: 760

RE: Are In-Line Pumps Noisy?

They should run all the time if you need it. Otherwise you can wire it in series with your WOT nitrous switch (if thats why you are using it). I am sure there is a pressure switch you could use in the fuel rail to activate it when pressure drops. Only bad thing there is that you can run out of fuel volume and still have good pressure. Loss of fuel volume is what those pumps are designed to prevent.
Noisy? Yes. They whine like a 6 year old girl.