[RedHardSupra]

You're probably not going to like this one, but another VERY good choice for your 17x11 rims and intended use would be the Kumho Ecsta MX in 285/40-17. It's going to look more like a Formula One or GT race tire instead of a fat drag tire, but it's still a lot of rubber. It will probably handle better than the 315 Sumitomo and outperform it in the rain too. It certainly won't tramline as bad as the 315s. AND, it's cheap!

I saw this post in another thread, and it got me thinking: would 285/40-17 Kumho MX be a good choice for 17x9.5/17x11 afs zr1 combo? I like 315s on the back, but the tire selection sucks (especially considering the price). So would it be possible to put the 285/40/17s on both the front 9.5s and rear 11s (pics anyone?) and actually keep it balanced and safe to use in track situations? what's the point of the wider wheel then?

It's a strange, un-happy middle for me, as I would have the weight of the big wheel, but the grip of the smaller wheel. So I either go to 17x9.5s everywhere, or bite the bullet and pay a grand for a set of KD's and be done?

Please enlight me.
Dazed and Confused,
Marcin

[sgarnett]

I already have 32.5/21.5 LG Motorsports sways, alongside with the full strano koni/gc kit, so I'm fine in this department.

So do i go with Kumho MX 275/285 or just go big with KD's 275/315? Any other good combos I should be aware of?

It's not just a matter of having "good" swaybars. Different tire combinations may need different swaybar combinations to tune the balance of the car. Even if it's balanced now, with (for example) 275 all around on SS rims, when you change to 275/315 you probably need a different rear bar to get it balanced again. BTW, never sell your swaybars. Since they are a tuning device, it's handy to have an inventory of different sizes on hand (especially for the rear) for the next time you change the tires or suspension.

Ouch, those KD's are expensive. The price difference between 4 275 MXs and a mixed set of KDs would almost pay for a second set of 9.5/11 rims from Ebay, and leave you a set of 4 11s for track days.

Of course that still leaves you with a set of 4 315 race tires to buy, but street tires don't make good track tires, and track tires don't make good street tires.

Another possibility might be Nitto 275 555R2 in the front, and Nitto 315 555R in the rear. That would be a lot cheaper than the KDs, and would be fairly well suited to track use with a suitable rear bar. At least in 275, the Nittos are moderately streetable, and even tolerable in the rain, though like I said 315s and a big rear bar may not be fun in the rain.