Oil Scavenge pump noise possible solution

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Feb 16, 2009 | 10:40 AM

aknovaman

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From: Hog Back, KS

Oil Scavenge pump noise possible solution

Has anyone tried using a PWM (pulsewidth modulation) circuit to vary the speed of their scavenge pump instead of a resistor?

The circuit is pretty easy to build.

Works like a champ to vary the speed od DC motors like the ones in treadmills.

http://www.electronickits.com/kit/co...tor/ck1400.htm

These can handle up to 30Amps.

http://www.bakatronics.com/shop/item.aspx?itemid=581

These can handle up to 16Amps.

Thoughts?

Last edited by aknovaman; Feb 16, 2009 at 10:46 AM.

Feb 16, 2009 | 12:17 PM

BadgeZ28

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I am curious how much oil is being circulated through a supercharger or turbo? My question centers around the idea that a pump might be running dry part of the time.

Feb 16, 2009 | 03:23 PM

ZL1Killa

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It may not necessarily be running dry, just slightly coated, lol.

Feb 16, 2009 | 03:53 PM

BadgeZ28

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I would love to see a bench demo of the flow rate of oil through the unit. I bet something like a quart sized sump setup would be a better return option. The pump kicks on and off by a level indicator.