Vacuum pump question

Old 07-07-2010, 12:56 PM
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Birddog95
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Which is better in a bigger cubic inch racing deal... a three vane or a four vane pump, and why?
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Old 07-07-2010, 12:57 PM
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Birddog95
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I guess I should clarify, 598 cu in....
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Old 07-07-2010, 07:26 PM
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hammertime
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Depends on the brand your looking at I assume Moroso.
I 4 vane is for a dry sump situation, but many use them with a relief valve, I run the 3 vane without a relief valve it pulls 8" @ idle and 12 down track.
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Old 07-08-2010, 07:07 AM
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I run a Moroso 3 vane on my 632 with a dry sump and without a relief valve. I've got no idea what it pulls going down the track. I have a hard enough time just going down the track much less trying to look at that little bitty guage :lol: It does pull 12lbs at about 3,000 and above. I don't have a guage in my new truck yet.
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Old 07-08-2010, 08:23 AM
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curtisreed
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Originally Posted by TheRabbit
It does pull 12lbs at about 3,000 and above. I don't have a guage in my new truck yet.
Be careful might suck the valve covers in. :lol: :lol:

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Sorry Rabbit sometimes I just can't resist.
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Old 07-08-2010, 05:39 PM
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TheRabbit
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Originally Posted by doorracer
Originally Posted by TheRabbit
It does pull 12lbs at about 3,000 and above. I don't have a guage in my new truck yet.
Be careful might suck the valve covers in. :lol: :lol:

Curtis

Sorry Rabbit sometimes I just can't resist.
Don't worry, I've had a lot of those kinda days lately. Most are self induced :shock:
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Old 07-19-2010, 08:21 PM
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Originally Posted by Birddog95
I guess I should clarify, 598 cu in....
Any idea how well the motor is sealed? More blow by needs more pump.
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Old 07-19-2010, 08:39 PM
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Originally Posted by coolbeans
Originally Posted by Birddog95
I guess I should clarify, 598 cu in....
Any idea how well the motor is sealed? More blow by needs more pump.
MORE BLOW BY,NEEDS a FRESHEN Up!Not a Vac.Pump,these are NOT BANDADES~!

Later
G 8)
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