pros and cons of 30's or 31's on an XJ

[polly]

simex centipede MT.... at about $170 per tyre is good value for a great tyre

[Fouros]

check this little tool out

might be able to help

http://www.miata.net/garage/tirecalc.html

[Dan96XJ]

Originally Posted by polly

simex centipede MT.... at about $170 per tyre is good value for a great tyre

agree, got em on mine

just realised another thing, a larger tyre = >speedo reading = >odo reading? right (im asking)? if so, does this mean that the engine clocks up more "virtual km's"? spose it really only matters if you have to sell it later? ...give a rats

[Steve F]

Originally Posted by Dan96XJ

agree, got em on mine

just realised another thing, a larger tyre = >speedo reading = >odo reading? right (im asking)? if so, does this mean that the engine clocks up more "virtual km's"? spose it really only matters if you have to sell it later? ...give a rats

Actually the speedo reads slower so the odometer will also read less KM's.

Cheers
Steve

[Dan96XJ]

hey Steve,

i thought the opposite cos of this,
and thought that a larger circumference on the tyre will mean more distance traveled per revolution

http://www.go.jeep-xj.info/HowtoSpeedoGears.htm
cheers
+ i copped a speeding fine recently when i iwas according with my speedo doing the right limit

[Steve F]

Originally Posted by Dan96XJ

hey Steve,

i thought the opposite cos of this,
and thought that a larger circumference on the tyre will mean more distance traveled per revolution

http://www.go.jeep-xj.info/HowtoSpeedoGears.htm
cheers
+ i copped a speeding fine recently when i iwas according with my speedo doing the right limit

Exactly, so your speedo said you were doing less KM's per hour than you were (Thats why you thought you were doing 100 but you were doing 110) so your odometer will also register less KM's than the number really travelled

Make sense, more distance tralled per revolution but calibrated for less distance per revolution. I guess it means your engine and driveline have done the extra KM's but the odometer doesn't say they have, this is a GOOD thing when you sell it, unless you sell it to me and then it is a bad thing (Well for me anyway)

Cheers
Steve

[Dan96XJ]

ahhh yes, thats what i meant...lol, it was like getting my left and right mixed up when looking in a mirror, durrrrrrrrr its clear as mud , thats why i failed maths in 1st year
cheers