If you put a 225-40-16 on instead of a 225-50-16, would it screw up your speedometer enough to notice? The overal diameter of the tire and wheel would be a little bit smaller than if a 50 series was installed. I'm sure the speedo would read a little bit faster than it should. Any one have any ideas or have tried this before?
I dont think you will be able to notice... but there are some crazy math guys on here.. that will probably write you out an explanation in mathmatical terms.... Your wheel will probably only travel an extra inch more with a thicker tire... than with the 40.... so if you times that extra inch by how ever many to equal a mile.. then you will probably get a decimal answer to how much it actually changes your speedometer....
yes, there would be a difference. You may not notice, but the cop with the radar gun might. its best to know you're real speed in case you get pulled over.
Originally posted by El Presidente@Jun 28 2004, 09:20 PM yes, there would be a difference. You may not notice, but the cop with the radar gun might. its best to know you're real speed in case you get pulled over.
I concure. The speedo is off of the differential and should be the little bendy bar type of speedo so as it gets old it can be off a little more. The OBC is probably reading it from the same thing, but it's electronic and doesn't have the wear-factor.
Kevin
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
BMW Werkz
668.8K posts
97.6K members
Since 2003
A forum community dedicated to all BMW owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more for your favorite models!