Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Coast down test methods and determining cD?

NachtRitter · 05-16-2009, 02:45 AM

I was curious if you think the same method could be done with a GPS? You won't have to do anything except note the start time of each of your runs, then go home & download the data to your PC to see what the coast-down times are. Good (and free, which makes it even gooder) software that I found is SportTracks, which I talk about in my thread here: http://ecomodder.com/forum/showthrea...orts-8103.html. You should be able to get fairly accurate coast-down data that way (certainly as good as the Instructables method).

05-16-2009, 02:45 AM	#3 (permalink)
NachtRitter NightKnight Join Date: Dec 2008 Location: Placerville, CA Posts: 1,595 Helga - '00 Volkswagen Jetta TDI TEAM VW AUDI Group Diesel 90 day: 54.39 mpg (US) Mathilde - '99 Volkswagen Eurovan Camper 90 day: 16.87 mpg (US) Thanks: 315 Thanked 314 Times in 187 Posts	I was curious if you think the same method could be done with a GPS? You won't have to do anything except note the start time of each of your runs, then go home & download the data to your PC to see what the coast-down times are. Good (and free, which makes it even gooder) software that I found is SportTracks, which I talk about in my thread here: http://ecomodder.com/forum/showthrea...orts-8103.html. You should be able to get fairly accurate coast-down data that way (certainly as good as the Instructables method). __________________ My VW MkIV Aerodynamic Mods (For Jetta and Golf) thread VW Save as You Drive. Background information for expert fuel savers.