Vacuum pump help

Bill Baer · 07-23-2012, 01:21 PM

Cooter
I run both of crankshaft seals and the cam seal (Jessel belt drive) in the normally installed configuration.
But I don't know how much vacuumn I am making or how much air inlet leakage their is either.
I do know that on the Dyno it was good for a disappointing 13 HP my Engine builder has seen as much as 40 HP gain but in those cases they used a different piston ring combination and turned the vacuumn pump faster. In my case it's keeps the alcohol from milking up the oil which was what I had in mind anyway.

07-23-2012, 01:21 PM	#2
Bill Baer Senior Member Join Date: Jul 2007 Location: Nothern IL Posts: 596 Likes: 1 Liked 1 Time in 1 Post	Re: Vacuum pump help Cooter I run both of crankshaft seals and the cam seal (Jessel belt drive) in the normally installed configuration. But I don't know how much vacuumn I am making or how much air inlet leakage their is either. I do know that on the Dyno it was good for a disappointing 13 HP my Engine builder has seen as much as 40 HP gain but in those cases they used a different piston ring combination and turned the vacuumn pump faster. In my case it's keeps the alcohol from milking up the oil which was what I had in mind anyway. __________________ Bill Baer 3391 SC, 339B SC, QR