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- djanikowski
Everyone that thinks NASCAR is low tech should read this article. http://www.hotrod.com/techarticles/hrdp_0803_chevy_nascar_engine/index.html
"Consider this: when you run the numbers, at 9,500 rpm, mean piston speed is 5,145 feet per minute with a maximum velocity of 8,380 ft/min at a crank angle of 76 degrees. Maximum positive piston acceleration is approximately 3,100 g, while the negative acceleration is nearly minus 5,300 g. How on earth can a big old 358ci pushrod V-8 live under such tremendous and sustained abuse, handling forces heretofore seen mainly in F1 engines? "
"Consider this: when you run the numbers, at 9,500 rpm, mean piston speed is 5,145 feet per minute with a maximum velocity of 8,380 ft/min at a crank angle of 76 degrees. Maximum positive piston acceleration is approximately 3,100 g, while the negative acceleration is nearly minus 5,300 g. How on earth can a big old 358ci pushrod V-8 live under such tremendous and sustained abuse, handling forces heretofore seen mainly in F1 engines? "