View Full Version : Vacuum pump question
Birddog95
07-07-2010, 11:56 AM
Which is better in a bigger cubic inch racing deal... a three vane or a four vane pump, and why?
Birddog95
07-07-2010, 11:57 AM
I guess I should clarify, 598 cu in....
hammertime
07-07-2010, 06:26 PM
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.
TheRabbit
07-08-2010, 06:07 AM
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.
curtisreed
07-08-2010, 07:23 AM
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.
TheRabbit
07-08-2010, 04:39 PM
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:
coolbeans
07-19-2010, 07:21 PM
I guess I should clarify, 598 cu in....
Any idea how well the motor is sealed? More blow by needs more pump.
bbchevy
07-19-2010, 07:39 PM
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)