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arcosine · 12-20-2010, 09:37 AM

Mech is right, and I'll add that the frictional losses go up by the square of the engine speed. Half the power produced while cruising at 3000 RPM in a 1967 Olds 400 V8 engine is lost in engine friction.

12-20-2010, 09:37 AM	#10 (permalink)
arcosine Master Ecomadman Join Date: Nov 2010 Location: Chicago area Posts: 1,156 sc1 - '98 saturn sc1 Team Saturn 90 day: 43.17 mpg (US) Airplane Bike - '11 home built Carp line Tour rans - '97 rans tailwind tractor - '66 International Cub cadet 129 2002 Space Odyssey - '02 Honda Odyssey EX-L 90 day: 28.25 mpg (US) red bug - '00 VW beetle TDI big tractor - '66 ford 3400 red vw - '00 VW new beetle TDI 90 day: 58.42 mpg (US) RV - '88 Winnebago LeSharo 90 day: 16.67 mpg (US) Thanks: 20 Thanked 337 Times in 227 Posts	Mech is right, and I'll add that the frictional losses go up by the square of the engine speed. Half the power produced while cruising at 3000 RPM in a 1967 Olds 400 V8 engine is lost in engine friction.