Tyre Width/Height

All technical questions and answers regarding starions, being modifications to maintenance.
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Alspos
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Tyre Width/Height

Post by Alspos »

Ever wondered how big your tyres can go and how far your speedo will be out? No? Well read no further.

If you are curious, then download http://www.pbn.com.au/staz/TyreHeightCalculator.xls and see what you think.


This is the first draft and seeing as I don't have a JB tyre placard in front of me, I have based it on JA. And yes I know the aspect ratio vs width are not exactly right in the real world, at least it's close.
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tmz_99
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Post by tmz_99 »

thats really cool man... very very cool....how far off would u place accuracy?

Im fairly surprised with my result, running on 17s 205/40 i have a smaller rolling diamiter then the stock 14s.. :S
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Post by scum »

mmmmmmm 2460.62 Rolling Diameter.... @391.44%
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Rassy
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Tyres

Post by Rassy »

yes I find that 17'' 235 45 works well for the rear, going to see if I can get a 255 45 under the back on of these weekends, I have one just need to get another. :wink:
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Last edited by Rassy on Wed Feb 16, 2011 9:29 pm, edited 1 time in total.
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TD05
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Post by TD05 »

http://www.shell.net.nz/dev/tyrecalc/

check this link, it does the same sort of thing + visuals
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Starion VR4
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speedo

Post by Starion VR4 »

Al you werdo, you have to much time on your hands! :beer :shock:
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SpidersWeb
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Post by SpidersWeb »

Ive been using the visual calc from miata.net for long time.

Bloody handy.

Since I have the 3.9 diff, was thinking of setting the speedo cable to the 3.5 diff setting, and putting on bigger wheels ehehe but I think the LTSA gets angry about that kind thing now days.
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