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Driver
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736 Posts
Depends on gearing, but how much does your b12 weigh? You can get a hp to weight ratio to get an idea as to how it'll perform. My B14 has a ratio of 23lbs. per hp, and it's damn slow. A BMW 325i has ratio of 18lbs per hp, and it's pretty quick. If you're b12 weighs 2200lbs(just a guess), that's a ratio of 17.6lbs per hp, which isn't bad at all.
 

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bitter old man
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1,456 Posts
Weight-to-horsepower ratio gives only a rough approximation of acceleration potential. Speed is strictly horsepower.

Both depend on gearing: transmission ratios, final drive ratio and overall ratio including tire.

Weight affects acceleration greatly but has almost no influence on speed.

There are at least two programs that can calculate 1/4-mile speed and ET with known weight, HP and gearing. I found this using Google:
http://www.nightrider.com/biketech/calc_formulas_page.htm
 
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