Speedometer calibration with tire size change-chart.

[Bob in Calif.]

I post this site about once a year, so I guess it's about that time again. This site give's you a way to get an accurate speedometer reading, when changing tire size from your factory size, to an optional size. It really works great. <br /><br />Example: The original tire size on my Ford XLT Club Wagon, the E250, 3/4 ton van, was LT215/85-R16. I wanted a more heavy duty and a wider track. I tried several sizes and came up with LT245/75-R16. The result's: At an indicated 100 MPH, the actual vehicle speed is 100.259 MPH. That's not a bad tire size exchange, with out changing my final 3:55 gear ratio. <br /><br />You can actaully change your final gear ratio up or down, by using non-orginal tire sizes, with the help of this chart.<br /><br />www.csgnetwork.com/speedocalibcalc.html<br /><br />Scroll down the page to find many more useful conversion chart's.<br /><br /> Enjoy.... ...Bob in Calif...

 

[Kiwi Phil]

Re: Speedometer calibration with tire size change-chart.

Got the link saved from previous years Bob. Thank you.<br />Cheers<br />Phillip

 

[JB]

Re: Speedometer calibration with tire size change-chart.

(sigh) <br /><br />Moving to Non-boating Tech