Quote:
Originally Posted by Jetboy
Doh, WDE beat me to it while i was looking for the color codes.
I'm confused by your math. With 31's, assuming you have a 4x4, you're not off by 1/3 on the spedo. Stock 235/75/15's are 28.9" so figure 29" to make the math easier. So one rotation of a 29" tire is 91". One rotation of a 31" tire is 97.34". So we're talking about a 9.3% difference. When you're spedo says 20, you're going 22mph, not 30. To get that far off you'd need 38.5" tall tires. I think that's why you think you're getting that good of mileage. Borrow a GPS and test it. I'm guessing you'll find your a lot closer to the spedo than you think.
|
That was all good informatiion Jetboy so I don't want to split hairs with you but stock (I think this is on an 84 Hilux) was P225/75R15 which is more like 28.3". OK, maybe I am splitting hairs....
