22,449
edits
Difference between revisions of "Horsepower"
Jump to navigation
Jump to search
→hp (SAE)
| Line 139: | Line 139: | ||
SAE net ratings, while more accurate than gross ratings, still represent the engine's power at the flywheel. Contrary to some reports, it does ''not'' measure power at the drive wheels. | SAE net ratings, while more accurate than gross ratings, still represent the engine's power at the flywheel. Contrary to some reports, it does ''not'' measure power at the drive wheels. | ||
Because SAE gross ratings were applied liberally, at best, there is no precise conversion from gross to net. Comparison of gross and net ratings for unchanged engines show a variance of anywhere from 40 to 150 horsepower. The | Because SAE gross ratings were applied liberally, at best, there is no precise conversion from gross to net. Comparison of gross and net ratings for unchanged engines show a variance of anywhere from 40 to 150 horsepower. The Chrysler 426 Hemi, for example, in 1971 carried a 425 hp gross rating (often considered to be underrated) and a net rating of 375 hp. | ||
==== SAE-certified horsepower ==== | ==== SAE-certified horsepower ==== | ||