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Old May 10, 2003 | 05:53 PM
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Speedo Question
Does anybody know if 20 inch tires throw off the speedo alot? I've got the 295/40/20 BFGoodrich KDW'S. Thanks for any responses. Jeff
 
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Old May 10, 2003 | 06:03 PM
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its something like .48171239 to fast

so your speedo will be around 61 when you are actually going 60.
 
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Old May 10, 2003 | 06:08 PM
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Great so its not off by much, Thanks for the reply! Would you happen to know whats involved with making it accurate if I want to do it?
 
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Old May 10, 2003 | 06:09 PM
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well either take it to a shop with a WDS or get a chip (i think)

the WDS can change almost anything to correct
 
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Old May 10, 2003 | 06:20 PM
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I already have a chip, i was wonderin if there was a way to do it, without having to reburn the chip.
 
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Old May 10, 2003 | 06:21 PM
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other then a WDS no,

btw a wds is $10-15K
 
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Old May 10, 2003 | 06:27 PM
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Thanks alot I appreciate your replys!
 
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