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Question: How can one calculate an estimated ET for a 1/8 or 1/4 mile using hp and weight?

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Old 10-10-2002, 09:10 PM
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Default Question: How can one calculate an estimated ET for a 1/8 or 1/4 mile using hp and weight?

Just surfing the web, and I notice there are a lot of programs out there that can estimate
quarter/eighth mile times when you enter
weight and hp.. or vice versa, trap speed and weight -> hp..

not sure what the exact equation is.. just wondering if people know..
Old 10-11-2002, 09:00 AM
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Default I went to google.com and typed in "1/4 mile calculator"

Here are a few that worked out close (within .15 or so) for some my cars -

http://www.battleoftheimports.com/classes/battlecalc.htm

http://www.fantasycars.com/derek/quartmile.html

Several I tried weren't anywhere close.
Old 10-11-2002, 09:17 AM
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Thanks..I've tried these.. but what equations are they using?
Old 10-11-2002, 03:52 PM
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Default hehe, sorry. Here's what I got from a friend...

ET = ((Weight / HP)^.333) * 5.825

You can find that formula and more at - http://www.nightrider.com/biketech/calc_formulas_page.htm
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