DragRaceResults.Com    Bracket Talk    Bracket Talk Forum  Hop To Forum Categories  Tech Talk - by Abruzzi    How much Vacuum ?
Page 1 2 
Go
New
Find
Notify
Tools
Reply
  
How much Vacuum ?
 Login/Join
 
DRR Trophy
posted Hide Post
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.
 
Posts: 387 | Location: Pride, La | Registered: April 18, 2006Reply With QuoteReport This Post
DRR Sportsman
Picture of 23taltered
posted Hide Post
Since 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


Bill Huntington
GZMOTORSPORTS.com

gzmotorsports.com/video/PRI2010.wmv
 
Posts: 163 | Location: Northern Cal | Registered: January 06, 2000Reply With QuoteReport This Post
  Powered by Social Strata Page 1 2  
 

DragRaceResults.Com    Bracket Talk    Bracket Talk Forum  Hop To Forum Categories  Tech Talk - by Abruzzi    How much Vacuum ?

© DragRaceResults.com 2024