Use this tire calculator. I don't think it's perfect, but I'm sure it's accurate. Plus at least it offers you revs per mile.
http://www.miata.net/garage/tirecalc.html
Use this tire calculator. I don't think it's perfect, but I'm sure it's accurate. Plus at least it offers you revs per mile.
http://www.miata.net/garage/tirecalc.html
Bader Norris
MEP Tuned
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Leave the N/V settings alone. Change the "Use VID" to "Disabled" (always), otherwise whatever axle and tire revs you modify in the tune will never take affect. Once you input the proper axle and tire size, the pcm will pretty much do all the rest of the work, including all the shift points for the autos (you may still need to make some minor adjustments to fine tune in the exact target shift point).
Last edited by RWTD; 08-10-2007 at 12:23 AM.
Formerly known as RWTD
Toys: '22 Tesla Model S Plaid / '20 Chevy Duramax / ?20 Sea-Doo RXT-X (2)
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