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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,235
basic measured engine parameters

I was using some of the turbo and hp estimator programs mentioned in the posts here and was trying to validate my guesses at some values of the following variables:
BSFC=brake specific fuel consumption for the 3.3 liter turbo
VE= volumetric efficiency in ??%
Intercooler efficiency for the B&B intercooler = ??%
Turbo efficiency= k27S in ??%
Average operating AF ratio with stock WUR at wide open throttle= ?? to 1
I was hoping some people have measured these values thru tuning or dyno work and could post them for others to use.

1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
Old 02-22-2009, 06:11 PM
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