Thread: Gasflow of VW engine
View Single Post
  #2  
Old July 5th 03, 01:42 AM
Marvin Barnard
external usenet poster
  
Posts: n/a
Default
Gordan Blair developed a formula in the early 60's for matching
exhaust pipe Length to a given RPM to achive the pulse tune effect. The
lower the RPM the more pipe needed.......