Using AIR pump as vacuum pump?

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Oct 28, 2008 | 12:33 AM

squee

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Using AIR pump as vacuum pump?

I'm about to install a 383 in my car and was wondering the best setup for the PCV system. I have a LS6 valley cover for it, and know that does away with pretty much all the problems and all the crap associated with the stock PCV system, but I came across this. Do you think this would be ok for a daily driver? It only comes on when needed and seems like it would work well. Anyone have any insight or info on this?

Oct 30, 2008 | 10:28 PM

98mysticZ

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From: plano

i would only do it in a boosted motor

Oct 30, 2008 | 11:33 PM

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Any reason in particular?

Oct 31, 2008 | 12:22 AM

ae13291

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boosted cars tend to have more crankcase pressure and increase in blow by. i have seen some cars blow off the pcv hoses due to the boost

Oct 31, 2008 | 12:36 AM

bczee

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I read on a thread that there is kit to wire your Air pump as a vacuum pump. Try searching.. if I find the thread, I will repost it.

Oct 31, 2008 | 12:50 AM

magic

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Quote:

Originally Posted by bczee

I read on a thread that there is kit to wire your Air pump as a vacuum pump. Try searching.. if I find the thread, I will repost it.

Racetronix makes a kit....
http://www.racetronix.com/product/RX-CEPH/RX-CEPH.html

Oct 31, 2008 | 01:27 AM

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Yea, thats the kit I was talking about. Its linked in my original post. I figure it would be a descent setup since it only comes on when needed instead of running all the time like most.

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Oct 31, 2008 | 11:20 AM

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Quote:

Originally Posted by Racetronix

http://www.turbobuick.com/forums/gen...-pump-how.html

http://www.turbobuick.com/forums/par...p-harness.html

http://www.turbobuick.com/forums/new...evac-pump.html

Thanks for the links. The first one was very helpful. I'm just wondering on how this will do a on daily driven car with a N/A motor?

Oct 31, 2008 | 05:33 PM

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98mysticZ

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From: plano

i dont think ur gonna have enought crank case pressure to need it just put on some breathers and call it a day...

Oct 31, 2008 | 09:29 PM

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regency

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a vacumn on the crankcase helps in any app.

Nov 1, 2008 | 10:02 AM

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Full-Force

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Quote:

Originally Posted by regency

a vacumn on the crankcase helps in any app.

exactly

I think even pro stock cars run them. They cost a few hp but the better ring sealing is worth it.

Nov 1, 2008 | 10:31 AM

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Grimes

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I have heard of cases where people have tried it, and it only give marginal vacuum. Also, supposedly the pump was not meant for a 100% duty cycle, and wears out too quickly with continuous use.

Nov 1, 2008 | 11:25 AM

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speedracer5532

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This setup the pump would only come on when under boost.

Nov 1, 2008 | 12:57 PM

#15

regency

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well the tighter you can seal those rings on the piston, the more HP you can make. I dont recall the #'s but for every 1" of vacumn in the crankcase so many HP are generated

Nov 1, 2008 | 02:24 PM

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NemesisC5

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Jan 20, 2009 | 05:25 PM

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1999FirehawkLS1

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Has anyone tried this on a all motor LS1 and seen gains?

Jan 20, 2009 | 05:46 PM

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Racetronix

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From: A Racetronix dealer near you...

Quote:

Originally Posted by 1999FirehawkLS1

Has anyone tried this on a all motor LS1 and seen gains?

There would not be HP gains. This is for oil control.

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Jan 21, 2009 | 08:26 AM

#19

KCFormula

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Quote:

Originally Posted by Grimes

I have heard of cases where people have tried it, and it only give marginal vacuum. Also, supposedly the pump was not meant for a 100% duty cycle, and wears out too quickly with continuous use.

Also the oil takes them out. The only good electric vacuum pumps are http://www.starvacuumpumps.com/catalog.php
NA motors will gain HP. Cars with weak rings or low tension rings will see the largest gains.
I run a star pump on mine. Couldn't be happier with it. I remember a while back madman having a star pump pull an oil pan into the rods it had so much vacuum.

Jan 21, 2009 | 12:32 PM

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Racetronix

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From: A Racetronix dealer near you...

Our harness only runs the pump under boost / WOT so they do not overheat. The links to the Buick forum above show how to place a catch can in front of the pump to collect the oil vapor. If our harness is used as well as a catch can the pumps will last a long time.

http://www.racetronix.biz/customkiti...sp?kc=CEPH&eq=

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Using AIR pump as vacuum pump?

Using AIR pump as vacuum pump?

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