Non A*E* Roots Numbers

ECMnut at aol.com ECMnut at aol.com
Sun Jun 20 13:59:44 GMT 1999


In a message dated 6/20/99 8:23:06 AM Eastern Daylight Time, 
bob at bobthecomputerguy.com writes:

> 
>  Ambient Temperature 75 F  Test of GMC 6-71
>  Partial restriction
>  
>  2000 RPM    1PSI (manifold)  92f (manifold)
>  4000 RPM    5PSI                  98f
>  6000 RPM   12PSI                 200f
>  7200 RPM   15PSI                 230f
>  
>  Repeated with no restriction ( all valves open )
>  2000 RPM    .5PSI                  80f
>  4000 RPM    2PSI                   82f
>  6000 RPM   3.5PSI                100f
>  8000 RPM   6.5PSI                 210f
>  
>  All above rpm  *** BLOWER RPM ***
  
Very interesting stuff.....
 What number is :*** BLOWER RPM ***" at 14 PSI on
 a 440??   I'm trying to apply the numbers to say, a 
440 vs a 350 cid engine  in the real world.   
 The blower will obviously run faster (more charge heat) 
to maintain the same amount of boost for the hungry 440..
Hence, the demand for larger 8-71 units.
Is there any reference to CFM @ ? BAR in those tests?
Thanks, 
Mike V



More information about the Diy_efi mailing list