Electric vacuum pumps

[oldtimer]

What's the opinions of running an electric vacuum pump for the crankcase ?

If so, which one is best ? How much vacuum will they produce ?

Any complete setups being sold ?

Pro's and Cons ??

Thanks,

George

 

[Louie L.]

Good Question ...

 

[Nick Micale]

Waste of $$$$.

Do a mechanical one or nothing.

Oh, if you do still want to use an electric one, I have a couple for sale.

 

[EightSecV6]

The electric ones work well for me, they will however burn up quickly on a street car without some kind of cooler. On a race car this is not an issue! No more oil leaks!

 

[HighPSI]

Bill,
How many inches are you able to pull at WOT?

 

[odell4o8]

elect. vac. pump,

Cal, my bone yard special when we first installed it line going to passenger side valve cover then we put a vacuum guage [ounces ] in driver side valve cover it pulled 4 ounces with engine idling about same with engine shut off, i did it to stop oil leaks or , last it took about 10 + seconds to see anything on the vacuum guage,

 

[EightSecV6]

Bill,
How many inches are you able to pull at WOT?

HAHAHAHA, I dont know how to answer that!LOL!!! Actually pulls around 3" of water at 9000 rpm, give or take, we did some different things on the piston/ring combo to help it out.

 

[pitch black]

The electric ones work well for me, they will however burn up quickly on a street car without some kind of cooler. On a race car this is not an issue! No more oil leaks!

What brand are you using if you don't mind me asking?

 

[oldtimer]

HAHAHAHA, I dont know how to answer that!LOL!!! Actually pulls around 3" of water at 9000 rpm, give or take, we did some different things on the piston/ring combo to help it out.

Bill, What type of electric pump do you use ?

George

 

[EightSecV6]

Bill, What type of electric pump do you use ?

George

LT1 smog pump with the filter removed.

 

[oldtimer]

LT1 smog pump with the filter removed.

Thanks Bill, I assume that with the low vacuum that these pumps produce, a relief valve is not necessary. Do you run a relief valve ?

I'm just interested in preventing oil leaks !!

George

 

[EightSecV6]

Thanks Bill, I assume that with the low vacuum that these pumps produce, a relief valve is not necessary. Do you run a relief valve ?

I'm just interested in preventing oil leaks !!

George

No relief valve necessary,even a couple inches gives you a little HP.

 

[oldtimer]

No relief valve necessary,even a couple inches gives you a little HP.

Ha Ha .... I can believe that

 

[Dwayne]

You can also pull the check valve out of the LT1's and get a little more out of them, along with the foam.

 

[Scott Atk]

Would the smog pumps be more effective at crankcase evacuation than an actual electric vacuum pump like what came on various Cadillacs??

example:
http://cgi.ebay.com/ebaymotors/ELEC...ryZ42605QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[BandAid]

http://www.aerospacecomponents.com/vacuum_components.htm

:wink:

 

[EightSecV6]

Would the smog pumps be more effective at crankcase evacuation than an actual electric vacuum pump like what came on various Cadillacs??

example:
http://cgi.ebay.com/ebaymotors/ELEC...ryZ42605QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Not enough volume at anything over idle.