Speedometer correction -- front or rear tires?
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Launching!
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From: Brownsburg, Indiana
Speedometer correction -- front or rear tires? I'm going to be putting 275's on the front and 285's on the rear. The tire diameter for the 275's is 25.7" and the diameter for the 285's is 26.0". In LS1_Edit, do I use the rear tire diameter in the "Tire Diameter" field for speedometer correction? Or the front tire diameter?
<small>[ March 29, 2003, 08:04 PM: Message edited by: Killer '01 SS ]</small>
<small>[ March 29, 2003, 08:04 PM: Message edited by: Killer '01 SS ]</small>
Re: Speedometer correction -- front or rear tires? The vehicle speed sensor is monitoring driveshaft revolutions... So you'd need to use the rear tires.
I'm running 165R15's in the front, 295/50-15's in the back (about 26.5" tires). The 26.5 setting is what makes it read the correct speed.
HTH,
Andrew
I'm running 165R15's in the front, 295/50-15's in the back (about 26.5" tires). The 26.5 setting is what makes it read the correct speed.
HTH,
Andrew
Thread Starter
Launching!
iTrader: (2)
Joined: Nov 2001
Posts: 226
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From: Brownsburg, Indiana
Re: Speedometer correction -- front or rear tires? Thanks for the quick reply, Andrew. I didn't think the front wheels had anything to do with the VSS on modern vehicles, but I just wanted to be sure. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
