FWIW, what temperature range, and is rain a concern?
On size...some of the max-performance 205s are larger than "normal" 205s. Between running wide for the tire wars and having squarer edge profiles. I prefer to see Miatas running the same wheels/tires front and rear. |
I'd do a 15x6.5 in the front with a 195, and a 15x9 in the rear with 275 racing slick, and no front sway bar. This is for fastest lap times.
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I run 205/50-15r RE-11s with out any cornering or traction problem in my 349whp NB.
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FWIW, I am using 225/40/16 T1Rs on 16X7 wheels. The offset is 40mm I believe.
The 1.3% (or so) diameter increase makes up for the optimistic speedo error, and the car handles much better than the 195/50/15 setup I used to have. And, I no longer leave 20 foot skid marks on the freeway when I hit the gas in 4th gear. |
The best size for fun fast road use are standard sizes, 14x6 or 15x6.5 with good tyres.
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You said ROAD USE.
Honestly for backroads you want a lightweight combo for compliance and grip over bumps, more than outright max cornering G's. And, 195 or 205 tires are a lot cheaper than 225's. 35 mm offset will give you less steering wheel jerking on bumps than a smaller offset. I suggest lightweight 15x7 rims with 195 tires, or 15x7.5 with 205's. R1R class tires have more grip than you ever "need" on the street; RA1's if you want even more than that. Softer sidewalls grip better on ripply pavement. I use 9.5 lb 15x7 Comp SSR's and 195/50/15 RE-01's on the street. The 6ULs with 225's are for track and autox. |
Originally Posted by JasonC SBB
(Post 702563)
You said ROAD USE.
Honestly for backroads you want a lightweight combo for compliance and grip over bumps, more than outright max cornering G's. So that's why it's getting some serious power upgrades :) |
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