SS Rim Speedo Correction? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 8 (permalink) Old 08-10-2014, 01:17 PM Thread Starter
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SS Rim Speedo Correction?

So I am planning on doing a 4 to 5 lug swap on my 06' balt and putting on stock SS rims on it (all part of my SS clone plan). The current rim is the stock minuscule 15 inch alloys. Would I need to get a speedo corrector if I jump from the 15 inch to the 18 inch (or 17 inch, can't remember off the top of my head) SS rim?
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post #2 of 8 (permalink) Old 08-10-2014, 04:36 PM
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Depends on the tires you put on.

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post #3 of 8 (permalink) Old 08-10-2014, 05:09 PM
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Yeah. Mine was off on my 2.2 by about 3mph at 50mph. So I would actually be going 53 instead of 50. But I went up to 16's with big tires. With low pros it might not be off
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post #4 of 8 (permalink) Old 08-10-2014, 05:43 PM Thread Starter
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So as long as the general total wheel diameter is the same I should be fine?

Last edited by JBronski; 08-10-2014 at 06:08 PM.
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post #5 of 8 (permalink) Old 08-10-2014, 06:16 PM
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Yeah, it's the tire that makes the difference, I did that conversation and have a set of SS/TC wheels as well as two others, only thing that really throws the speedo off is 235/40/18 by 2mph at highway speeds. Just Google tire size calculator and there are some good ones.

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post #6 of 8 (permalink) Old 08-10-2014, 06:55 PM
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195/65-R15 vs 205/60-R15 Tire Comparison - Tire Size Calculator

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post #7 of 8 (permalink) Old 01-26-2015, 05:27 PM
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What do you use to re-program tire size on a balt? Can it be done with a Tech2?
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post #8 of 8 (permalink) Old 01-26-2015, 07:04 PM
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Quote:
Originally Posted by The Lady Cobalt View Post
What do you use to re-program tire size on a balt? Can it be done with a Tech2?

Yes. It can be reprogrammed with the tech2.


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