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[Eugene-TAIWAN]

I went

265/35/18
295/35/18

i think this set up is solid

[Eddy@ApexWheels]

Originally Posted by persian54

Would you say a 285/30/18 is too short of a tire? I say this because, as you said "depending on availability," the AD08s don't come in 285/35/18.

Would 295/30/18 AD08 clear (no rubbing anywhere) with a 10.5 low offset?

The square set up you mentioned is a great set up.

Correct, 285/30/18 is shorter than ideal, and can prove to be better or worse in it's gearing change. For someone doing a regular HPDE, it may have no consequences beside a slight change in shift points, and that would depend entirely on the track as to whether it's a positive or negative change. At the 25 hours of Thunderhill there was an E9X M3 with 285/30/18 square on 10's for example.

So if all you can get is a 285/30/18 in the compound you want, then don't let it stop you, unless the front tire size you're going to run is unusually taller, such as a 275/35/18 up front paired with that size rear. Then you'd have a reverse rake, for a car that normally has a noticeably taller rear.

[SP33DRCR]

For track use, the tradeoff is between performance and cost effectiveness. A square setup will cost less as you will be able to rotate front/rear. However, a square setup will increase oversteer.

[radiantm3]

I did 265/35/18, 295/30/18 with my TE37's for the track. Had this setup with both the PS Cups and AD08's and always worked out great for me.

[Expert@ApexWheels]

We've had several of our customers do the 18x9.5" ET22 and 18x10.5" ET27 with Hankook RS-3 in 265/35/18 and 285/35/18 when they chose to stay staggered, and they seem to be very content with that. There are also many that go with the 18x10" ET25 squared with 275/35/18 tires as well.

[SSJTrunks523]

From the grave.....

Anyone run 295/30/18 square? I heard a couple say it was possible, but have yet to hear someone actually running it on track.

If anyone on here is, what is your set up?

[sebaflex]

Originally Posted by SSJTrunks523

From the grave.....

Anyone run 295/30/18 square? I heard a couple say it was possible, but have yet to hear someone actually running it on track.

If anyone on here is, what is your set up?

Here ya go https://www.apexraceparts.com/blog/y...-arc-8-wheels/

[SSJTrunks523]

Originally Posted by sebaflex

Here ya go https://www.apexraceparts.com/blog/y...-arc-8-wheels/

Shit - spacers.......

[SSJTrunks523]

FYI, I tried this up front on my car on 18x10et25 and 18x10.5 et27

Both rubbed, the 10 barely, but the tire was sketchy as far as fitment. Hoosier A6 test tires

[nycplumber]

Where are you guys finding tires for a 265/35/18- 285/35/18?

I'm having more trouble finding options for 275/35/18 in the front

Tire rack has about 2-3 choices and most aren't at least in the Max Summer category

[macdude357]

Originally Posted by nycplumber

Where are you guys finding tires for a 265/35/18- 285/35/18?

I'm having more trouble finding options for 275/35/18 in the front

Tire rack has about 2-3 choices and most aren't at least in the Max Summer category

For track tires I pay less attention to the listed width and look at the tread width. For example, the 285/35/18 RS4's have a tread width of 10.6 which is only .1 wider than a 275/35/18 NT01, Toyo R888R or Maxxis RC1. You will be hard pressed to find many 18" 35 series tires wider than ~10.5 inches. The new Yokohama A052's come in a 295/35/18 which is 11.2 inches wide but not much else until you go to 40TW tires like the BFG R1(S).

[derbo]

totally wrong thred..oops lol

[Dreamer99]

Originally Posted by SSJTrunks523

From the grave.....

Anyone run 295/30/18 square? I heard a couple say it was possible, but have yet to hear someone actually running it on track.

If anyone on here is, what is your set up?

I'm running 295/30/18 AR1's square on 10" wide wheels. I have Ohlins coils and required a 5mm spacer in the front.