Vacuum Pump?

[Blown70]

So is anyone here running one....Depending on the build, I have been suggested if I run A-OH (alcohol) to run one of these......


http://www.aerospacecomponents.com/index.php?option=com_content&view=category&layout=blog&id=28&Itemid=67

Thanks......

[Challenger340]

Exactly !
Depends upon the build application.
What Engine/Build Type are you looking at using one on ?

I use them on Big Inch Drag Stuff with Ring EndGaps above .024 to keep Negative Pressure on the 2 nd Rings( keep pressure from Building between the rings).
Sometimes running same or Higher Gap on the Second Ring just ain't "enough".
Lotsa Blown & Steroid Guys combat the sealing problem the same way.

Bob out.

[Blown70]

Exactly !
Depends upon the build application.
What Engine/Build Type are you looking at using one on ?

I use them on Big Inch Drag Stuff with Ring EndGaps above .024 to keep Negative Pressure on the 2 nd Rings( keep pressure from Building between the rings).
Sometimes running same or Higher Gap on the Second Ring just ain't "enough".
Lotsa Blown & Steroid Guys combat the sealing problem the same way.

Bob out.

BOB, thanks, I know this is not for the average build, but I did not even know about them and applications until about 5 days ago... I am hoping to build in the spring and do not have a specific plan... for now I have a set of Ported Indy SR heads   

So, for now I am trying to learn about them, and trying to figure out what car I am dropping the motor in.......so that will matter on the build....


Thanks for your imput and time

Tom