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I agree. 10-15% is more accurate. 198mph, NO (archive)
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Posted by Dino on May 07, 2001 at 06:46:27:

In Reply to: Dynoed my Mroadster yesterday...... posted by Mpower007 on May 06, 2001 at 23:18:14:

30% loss of efficiency is a joke. 15% is the most it would be. You should not lose horsepower with larger wheels. The torque will be slightly lower, but you'll be going faster, so HP is constant.

198mph, not unless that guy has done some major redesign of his differential. These cars cannot go that fast in a five speed. get a life.

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