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Formula

To: land-speed@autox.team.net
Subject: Formula
From: OHFASTONE@aol.com
Date: Tue, 1 Aug 2000 00:20:36 EDT
Ok everybody,
I ran across this formula to calculate 0-60 time and I was wondering if 
anyone has used something like this and could tell me of how close they came, 
there are a few examples listed as well.

        Mike in L.A.

<<Most cars average a 0-60 time equivalent to their weight in lbs. divided by
their peak break horse power and then dividing that sum by 2, in seconds
(there's a variance of plus or minus 2 seconds due to a multitude of other
factors...but the formula actually works quite well specifically for sports
cars).

Examples:
A 2000 Dodge Viper RT/10 has a curb weight of 3443 lbs. listed, a peak brake
horsepower rated at 450 horses (7.65:1 weight (lbs) to hp ratio) and a
factory listed 0-60 time of 4.2 seconds. (7.65 divided by 2 is 3.825 and a
variance of -0.425 or four-tenths of a second from factory spec of 4.2)

A 2000 Miata MX5 has a curb weight of 2332 lbs., a peak brake horsepower of
140 (16.66:1 weight to hp ratio) and a factory listed 0-60 time of 7.9
seconds. (16.66 divided by 2 is 8.33 and a variance of  +0.43 or four tenths
of a second from factory spec of 7.9.)

A 2000 Mercedes Benz SLK230 Kompressor has a curb weight of 2992 lbs., a
peak brake horsepower of 185 (16.17:1 weight to hp ratio) and a factory
listed 0-60 time of 7.6 seconds (16.17 divided by 2 is 8.085 and a variance
of +0.315 or three-tenths of a second from factory spec of 7.6)

The 'dividing the weight/hp ratio' by the number 2 is just a nice average nu
mber. Most vehicles calculate well within 1.9 to 2.3 so maybe 2.1 would give
a more realistic estimation.>>

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