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Author: Fireballs Big red star, 1000 posts Old School Fool Add to my Favorite Fools Ignore this person (you won't see their posts anymore) Number: of 11706  
Subject: Re: You have too much horsepower if... Date: 8/9/2012 3:38 PM
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Is it actually possible to have too much horsepower?? ;-)

If you happen to be driving a Top Fuel dragster or Funny Car, yes. They are grip-limited all they way down the track. They actually run quicker and faster into a headwind because the additional downforce adds a lot more grip than the drag penalty that it creates. Peak acceleration is between 4.5 and 5 g's just off the line, and even at the finish, they are still accelerating at more than 2 g.

What happens to all of that excess power? It goes into tire heat and clutch heat. The clutch is intentionally slipped down to about half track. That's why they use carbon/carbon clutches, and why they are replaced after every pass.

Neil
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