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Post by geezer on Oct 8, 2016 18:43:42 GMT -4
Does anyone have a tool to recalibrate the speedometer on myJK. Put bigger tires on it and the speedo is off about 7 mph.
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jer
Jeeper
Posts: 771
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Post by jer on Oct 11, 2016 8:41:34 GMT -4
You will need something like a superchips programmer or AEV Procal. Each unit is tied to a VIN number so it can't be used on multiple vehicles.
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Post by falwith on Oct 12, 2016 8:17:11 GMT -4
Someone more adept at tire size swaps might know the proper terms and such, but there is a gear that goes into your tcase that you can change to get it reading properly. Scotty might know off hand what gear you'd need to properly adjust it.
An alternative is to pace it, either with a GPS or a friend who's speedo is accurate, then keep in mind the variance. T-Dogg has his figured out, with new gears and tires. Now if he can remember it.....all will be ok, lol.
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bill richards
Jeeper
Millwood Marauder
mud re-freshener
Posts: 4,169
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Post by bill richards on Oct 12, 2016 9:42:38 GMT -4
Someone more adept at tire size swaps might know the proper terms and such, but there is a gear that goes into your tcase that you can change to get it reading properly. Scotty might know off hand what gear you'd need to properly adjust it. An alternative is to pace it, either with a GPS or a friend who's speedo is accurate, then keep in mind the variance. T-Dogg has his figured out, with new gears and tires. Now if he can remember it.....all will be ok, lol. Not for a JK Bill |
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Post by Larry on Oct 12, 2016 11:49:04 GMT -4
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jer
Jeeper
Posts: 771
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Post by jer on Oct 12, 2016 12:03:45 GMT -4
Someone more adept at tire size swaps might know the proper terms and such, but there is a gear that goes into your tcase that you can change to get it reading properly. Scotty might know off hand what gear you'd need to properly adjust it. An alternative is to pace it, either with a GPS or a friend who's speedo is accurate, then keep in mind the variance. T-Dogg has his figured out, with new gears and tires. Now if he can remember it.....all will be ok, lol. In older jeeps you can do that for sure. However JKs read speed off a tone ring which can't be change. |
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