Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Largest Tire Diameter on a 6th Gen Civic (for lower RPM)

cfg83 · 03-10-2009, 04:40 PM

UnCivic -

Welcome to EM! I did a modest one-size-up tire mod :

http://ecomodder.com/forum/showthrea...ires-2642.html

The tire calculators on the net showed a 2% change, i.e. the speedometer will read 2% slow.

Since my odometer is calibrated for an OEM tire size, I did a GPS correction that agrees with the calculations, a 2% difference. Now, when I do my fuel logs, I add 2% more miles to the number of miles on the odometer. For example, if I drive 100 miles, I write down 102 miles in my fuel log.

CarloSW2

03-10-2009, 04:40 PM	#4 (permalink)
cfg83 Pokémoderator Join Date: Dec 2007 Location: Southern California Posts: 5,864 1999 Saturn SW2 - '99 Saturn SW2 Wagon Team Saturn 90 day: 40.49 mpg (US) Thanks: 439 Thanked 532 Times in 358 Posts	UnCivic - Welcome to EM! I did a modest one-size-up tire mod : http://ecomodder.com/forum/showthrea...ires-2642.html The tire calculators on the net showed a 2% change, i.e. the speedometer will read 2% slow. Since my odometer is calibrated for an OEM tire size, I did a GPS correction that agrees with the calculations, a 2% difference. Now, when I do my fuel logs, I add 2% more miles to the number of miles on the odometer. For example, if I drive 100 miles, I write down 102 miles in my fuel log. CarloSW2 __________________ *What's your* EPA MPG? Go Here and find out!** American Solar Energy Society