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Old 04-29-2010, 01:57 PM   #1 (permalink)
Fr3AkAzOiD
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Join Date: Jul 2008
Location: Raleigh, NC
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Cobalt XFE - '08 Chevrolet Cobalt XFE
Team Chevy
90 day: 41.1 mpg (US)

'05 Malibu V6 Tow Vehicle/Track Car - '05 Chevrolet Malibu LS V6
90 day: 23.12 mpg (US)

'08 XFE average for 2013 - '08 Chevrolet Cobalt XFE
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Best way to perform a coastdown test?

Looking to do some coastdown testing and was hoping for some tips on the best way to do it.

I found a decent stretch of road and would most probably be trying to do a 60 - 30 mph test as unless done in the middle of the night a 60mph - 0mph would be difficult.

It's a nice little hill that shallows out to maybe a 1% downgrade and the whole thing was freshly paved at the end of last year so there would be less irregularities in the pavement.

My main issue is with how to measure the distance on the different runs.
I would like to know a good way to measure distance in feet without having to walk the street at night with a measuring wheel.

I apreciate any help.

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