Page 1 of 1
Speedo readings with 17 alloys
Posted: Wed Apr 20, 2005 7:57 pm
by madmerv
Quick question. Does speedo need re calibrated with bigger wheels than standard
?
Posted: Wed Apr 20, 2005 8:16 pm
by code-
Different diamater wheels = speedo wrong
Or, more wrong then it allready is, most cars show too much.
Posted: Wed Apr 20, 2005 9:43 pm
by Ziggy
Depends on the overall diameter - ie what size tyres you fit...
Posted: Wed Apr 20, 2005 9:51 pm
by 320Touring
try this link dude and dial the info in
standard on 15"BBs is 205/55/r15 all round iirc
http://www.miata.net/garage/tirecalc.html
it'll give you an idea of how far teh speedo will be out...
Posted: Thu Apr 21, 2005 10:05 am
by Zayyan
code- wrote:Or, more wrong then it allready is, most cars show too much.
If the speedo is over-reading, with bigger wheels surely it'd be less wrong?
If you can, borrowing a sat nav (GPS) system is an easy way of telling for certain how far it's out, and then you can calibrate it - I think I remember someone typing up a thread explaining exactly how to do this a few months ago
Posted: Sun Apr 24, 2005 3:27 pm
by madmerv
Been busy at work, thanks for the replies and the link. Will see how i get on. Cheers folks.
