plenum volume

[Paul Tholey]

At 08:12 PM 2/19/98 -0500, you wrote:
>>	Haven't seen any real good formulas on calculating plenum volume though was
>>once told by a Ford engineer that they run 1.1-1.2 times engine displacement.
>
>Guess my message didn't make it through, one of the EFI books I have said
>the plenum should be at LEAST the same size as the displacement of the
>engine.  A Chevy 350 needs a minimum of 350 CID in the plenum, for example.
>
>I just wish I could explain why :)
>
>
>Frederic Breitwieser
>Bridgeport, CT 06606
>http://www.xephic.dynip.com/
>
>1993 Supercharged Lincoln Continental
>1989 4-Door Softtop Humvee (Hummer)
>2000 Buick GTP (Mid-engine track car)
>
>---
>
>
        

        How does the runner volume come into play?  I mean, would the ideal
plenum size change if my runners were long...for torque, or short...for the
high R's?

Paul Tholey