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225/70/15 how much will i be off on the speedo?

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Old 10-12-2007, 02:34 AM
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86GT 93LX
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Default 225/70/15 how much will i be off on the speedo?

these are off a tbird with 10 holes on em, i got 2 nails side by side on one of my back tires and they wont fix em. i bought the 2 tbird wheels at a boneyard for 30 bucks, i might have to use them, on my other mustang i had tbird wheels too but i changed the speedo gear. i dont know the tooth count on this car, but im geussing i would need a gear with an extra tooth right? 225/60/15 is my stock size. thanks guys, and i have a t5
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Old 10-12-2007, 03:00 AM
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86 5.0L
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Default RE: 225/70/15 how much will i be off on the speedo?

quite abit

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

and I live far away
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Old 10-12-2007, 03:07 AM
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Jfsram
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Default RE: 225/70/15 how much will i be off on the speedo?

Even stock combinations are not always calibrated accurately.

The easiest way to check speedometer vs actual speed is with a GPS.
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Old 10-12-2007, 03:46 AM
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86GT 93LX
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Default RE: 225/70/15 how much will i be off on the speedo?

4.1mph off hmm what speedo gear do i need. one tooth count adds like 5mph or more
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Old 10-12-2007, 06:16 AM
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stang8689
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Default RE: 225/70/15 how much will i be off on the speedo?

It will look like a 4X4
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Old 10-12-2007, 07:08 AM
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mjr46
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Default RE: 225/70/15 how much will i be off on the speedo?

It's not how off it'll be more like how awful it'll look..like two donuts rollin' down the road......[:'(]
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Old 10-12-2007, 06:40 PM
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Default RE: 225/70/15 how much will i be off on the speedo?

ORIGINAL: mjr46

It's not how off it'll be more like how awful it'll look..like two donuts rollin' down the road......[:'(]
That would fit right in w/ everything else he's done!
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Old 10-12-2007, 07:10 PM
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mjr46
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Default RE: 225/70/15 how much will i be off on the speedo?

ORIGINAL: PRO50SC

ORIGINAL: mjr46

It's not how off it'll be more like how awful it'll look..like two donuts rollin' down the road......[:'(]
That would fit right in w/ everything else he's done!
[sm=icon_rofl.gif][sm=icon_rofl.gif][sm=icon_rofl.gif][sm=icon_rofl.gif][sm=icon_rofl.gif]



Fixed it for ya!
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Old 10-12-2007, 07:12 PM
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86GreenMachine
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Default RE: 225/70/15 how much will i be off on the speedo?

Thats the same size i have on my car right now.It threw my speedo off by 10kmph.And your right they do lokk awful way to big of profile.Gotta make do with what u have though!
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Old 10-12-2007, 08:26 PM
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86GT 93LX
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Default RE: 225/70/15 how much will i be off on the speedo?

they would go on the back so they would look fine, give the car a raked look, i know how they look i had them on my 93 for a while, it gives it a sweet stance, but the 93 had a diff speedo gear. my tires are 100 each i cant afford one right now and if im going brand new i want a wider tire in the back with stock height, any suggestions, real wide is nice, but cost has to be considered
ORIGINAL: 86GreenMachine

Thats the same size i have on my car right now.It threw my speedo off by 10kmph.And your right they do lokk awful way to big of profile.Gotta make do with what u have though!
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