SyncroHead wrote:
<< Increasing the tire diameter means even slower acceleration and higher
gearing.  Using a Syncro for any real four wheeling, you'll quickly realize
that even the low gear on the Syncro isn't low enough for many off-road
adventures.  I'll stick with the 14" wheels until a pile of cash lands in my
front yard enabling me to change the differential gears to compensate for the
larger wheels. >>
Not necessarily. If you choose your new wheel/tire combo well you can keep your
overall tire circumference the same even with larger wheels. The original tires
on my '86 GL were 195/75 14". I now have 215/65 15" with minimal change in
overall circumference -their actually a bit smaller! Go look at

                                http://www.miata.net/garage/tirecalc.html

This is a tire size calculator -Done by someone with a Miata but its all the
same. This tool has some visual bugs but it works.

Eric Small
Dallas, TX
'86 GL