Thread: Vacuum gauge
View Single Post
Old 10-24-2008, 04:31 PM   #19 (permalink)
PaleMelanesian
Hypermiler
 
PaleMelanesian's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 2,321

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 44.06 mpg (US)
Thanks: 611
Thanked 434 Times in 284 Posts
FYI, accelerating at 75-80% load, as reported by the scangauge, corresponds to about 12 psi MAP. At 1500-2000 rpm, that's the optimum BSFC point for most engines. Useful for P&G. A simple vacuum gauge won't tell you about P&G, it'll tell you to use super-light throttle all the time. That's good, but not always the best. Do some reading about P&G and about BSFC.
__________________



11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
  Reply With Quote