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Old 05-28-15, 01:24PM   #1
conceptfab
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Default why is my fuel pump so loud and turbo so quiet??

I have an aeromotive "street/strip" fuel pump, an aeromotive boost referenced bypass regulator and a tv7101 on 8 lbs on a low compression 389. Maybe I need to up the boost to hear the turbo? I mean I can certainly tell when the boost hits but its just so stinking quiet except for that dang fuel pump!
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Old 05-29-15, 02:01PM   #2
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Try running rubber washers or bushings under the pump. It will help some but will not cure it totally. Also are you running a return line back to the cell? If not and you are "dead heading" the pump, the pump is working hard; therefore, it makes more noise.
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Old 06-25-15, 03:24PM   #3
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Yup cut a piece of rubber and place it between the pump and sheet metal that'll quiet it.

A lot of times the turbos are very quiet especially on gas engines compared to diesels. Idk why but that does happen my car you really only hear the BOV not the turbo my dodge diesel I hear the turbo much more.
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Old 06-25-15, 03:28PM   #4
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My king sumo pump is pretty loud, I can tell when I'm getting low on fuel in the cell because the pump starts cavitating making it sound different. I think it starts pulling in frothed fuel from the return line dumping back in. one of these days I'll go to a bigger cell with a gauge but until then that fuel pump sound is my best Freind. ��
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Old 06-25-15, 03:29PM   #5
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The "turbo" sound will get louder with more boost. Run it with no hood you will here it more!
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