You got it
You didn't get yours recalibrated then?
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| Rolling Diameter Calculator https://www.ausmini.com/forums/viewtopic.php?f=23&t=12115 |
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| Author: | awdmoke [ Thu Oct 13, 2005 4:57 pm ] |
| Post subject: | Rolling Diameter Calculator |
For those needing to work out if you need your speedo recalibrated: http://www.tyremaster.com.au/fitment_tips/diam_calc.htm Just divide the donor car rolling diameter by your new rolling diameter & multiply by 100 to get the percentage change. |
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| Author: | awdmoke [ Thu Oct 13, 2005 5:05 pm ] |
| Post subject: | |
For example: Subaru 195 / 65 R 15 = 1993mm now 185 / 65 R 14 = 1873mm 100 x 1993 / 1873 = 106.4 so my speedo will read 6.4% higher. This is just an example, as I don't know what rims were on the original |
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| Author: | 13secmini [ Fri Oct 14, 2005 9:06 am ] |
| Post subject: | |
ok see if i got this right mine now is 175/50/13 = 1587mm starlet is 185/60/14?? = 1815mm so i get 114,36 so 14% out? |
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| Author: | awdmoke [ Fri Oct 14, 2005 11:03 am ] |
| Post subject: | |
You got it
You didn't get yours recalibrated then? |
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