October 04, 2019, 12:08 PM
Triple NickelHow much Vacuum ?
Ditch the aerospace pump get a moroso 4 vane ehnanced design pump. If that's not in the cards, check the relief, if its set right, then look at all the gaskets, oil pan and intake gaskets included.
October 04, 2019, 03:57 PM
23talteredSince Pro-stock cars use an electric vacuum pump as well as a dry sump, they would eliminate windage as well as pump drag at the risk/expense of bearings and cooling effect of the oil on valve springs, Etc. I can see it being good for a few hundredths. Probably be a good idea to have a spare bullet standing by.
quote:
Originally posted by RyanNorton1:
Bob,
A vacuum of 13-14 PSI is around 27" of mercury, practically a soft vacuum as the ambient air pressure is only 14.7 PSI or 29.92" of mercury.
Also cutting the belt to the dry sump cuts all scavenging and pressurization of the oil system as they all share a common shaft.
Not sure what you might have saw but I don't think someone is going to find much power by cutting a dry sump belt.
Ryan