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09-27-2015, 02:26 PM | #1 |
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Wheel Size
With the swapping of the wheel sizes that I read about, doesn't
that effect your speedometer read outs. I see a lot of guys will go from a 17 inch to a 19 inch. How does that effect the speedometer? |
09-27-2015, 02:41 PM | #2 |
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As log as you adjust the tire section width with the increase/decrease in wheel size so that the resulting overall diameter of the tire remains the same, the speedo/odo calibration will not be affected.
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09-27-2015, 03:46 PM | #3 |
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Wow, so you would have to go with a much lower profile tire to lets say go with a 18 or 19 inch wheel. I can't imagine how rough a ride that would be.
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09-27-2015, 05:05 PM | #4 |
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Yep, that's always the disadvantage of upsizing wheels and that's why some Z4s with 19s have ended up with cracked wheels, especially when combined with more inherently rough riding run flat tires.
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09-28-2015, 08:07 AM | #5 | |
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Quote:
And lower profile good tires run softer than the higher profile runflat nonsense. |
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09-28-2015, 08:13 AM | #6 |
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You can also have the ECU programmed with the new wheel size and it will auto correct for the size. Plus if you decide to not get the ECU updated i have seen where some vehicles (like my 3er) will throw a cruise control malfunction. Simply adding the new tire size fixed it.
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Enjoying an E89 Z4, F30 320i and Fiat Abarth //
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