Recalibrate Speedometer for New Tire Size

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Jul 24, 2009 | 11:32 PM

#11

bpark8824

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Joined: Jun 2008

Posts: 3,300

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From: Plattsburgh, NY

Quote:

Originally Posted by dakota_raven

What's the factory size or the size that you had on?? Maybe won't make a difference!!!

Factory size is 265/70 16. The speedo will only be off a tiny bit. Maybe a mph or 2 at most. There isn't much difference in the two tire sizes and I don't think it's worth it.

Jul 31, 2009 | 12:21 AM

#12

wingerak92

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Joined: Dec 2007

Posts: 516

Likes: 0

From: Grande Prairie AB

Quote:

Originally Posted by habiak

thats because BC stands for bring cash, here in alberta they run about 300

where in Alberta u from?? haha

Jul 31, 2009 | 12:48 AM

#13

Independentfool

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Joined: Jul 2009

Posts: 390

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From: Shelton, WA

entirely not worth it.

when your speedo reads 60, you'll be doing 62.

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

Oct 25, 2009 | 01:54 PM

#14

timp1510

Registered User

Joined: Sep 2009

Posts: 23

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Will changing your gear ratio affect your speedometer or anything? Also, does anyone know the speed and rev limiter that a 2004 4.7 comes with?
Thanks

Oct 25, 2009 | 06:44 PM

#15

magnethead

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Joined: Feb 2005

Posts: 8,058

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From: Fort Worth, TX

yes. and my V6 hit the speed limited @ 115. Rev limiter is 5200 i think..i dont know exactly where cuz the trans goes to neutral when you hit it (mine did at least).

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