Coast Down Spreadsheet

[AntiochOG]

The latest issue of Grassroots Motorsports had an article on the effect of tire rolling resistance on MPGs and drag. The results weren't surprising to those of us familiar with this stuff, but they posted a cool spreadsheet that you can enter your coast-down testing data into to calculate drag and required wheel power.

The link to the spreadsheet is here: Discover Your Drag with Coast-Down Testing: Grassroots Motorsports Magazine Articles

[pgfpro]

Thanks for the info. I love spreadsheets.

Just plug my values in and it matches up with all the other spreadsheets and calcs.

[kennybobby]

Doesn't seem to be much to this one --no aero drag or rolling resistance, etc. The online calculator in the tools section can be used to determine the rolling resistance portion of the total drag in a similar coast-down test. There's really no excuse for this spreadsheet since it has no input for aero drag coeff, which nearly every vehicle has listed somewhere out there in the tubes that are the world wide websticle.