I've got a '99 Miata with the factory 15x7" alloy wheels. I'm going to
get some Kumho Victoracer V700's for autocrossing.
The V700 is available in 205/50-15 or 225/50-15.
The car came from the factory with 195/50-15 Michelin Pilots. I'm
curently running Toyo T1-S's in 205/50-15, which is the largest
Toyo recommends for a 7 inch rim width. Kumho says you can run
the either the 205's or the 225's on a 7 inch rim.
I guess my question really is, is the 225 "too much tire" for a stock
Miata? The wider tire will be taller, thus raising my effective
gear ratio, plus it will be heavier. Is this going to hurt my
acceleration too much?
I'm also concerned about whether a 225 width (9.17 inch section
width according to their web page) is really going to work on a 7
inch rim.
What size race tires are other Miata drivers using for autocrossing, and
what do you think is best?
Thanks,
Keith Hearn
'99 Miata 10AE "Sexy Sadie" the Sapphire Shark
Milpitas, CA
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