rwolff
Veteran Member
Re: Stories when filling up at \"gasoline station\"
For those of you other than Pete, the standard in aviation is to measure manifold pressure in inches of mercury absolute (normal atmospheric pressure at sea level will read about 30 inches). The 12 pounds boost on a stock TDI will bring you up to roughly 50 inches. Needless to say, for gassers a 20:1 ratio is impossible due to pre-ignition.
The proper response if a hot-rodder/musclecar type tells you that it's diesel is "When you run 50 inches of manifold pressure on top of a 20:1 compression ratio, you need something stronger than premium".Was about to fill up once, and a guy by a trans-am yelled over at me and told me it was diesel pump and not to put it my car.
For those of you other than Pete, the standard in aviation is to measure manifold pressure in inches of mercury absolute (normal atmospheric pressure at sea level will read about 30 inches). The 12 pounds boost on a stock TDI will bring you up to roughly 50 inches. Needless to say, for gassers a 20:1 ratio is impossible due to pre-ignition.