Since the NT-01 is not available in stock tire sizes I was thinking of trying a NT-01 in 245/40/18f and 315/30/18r on stock rims for track days but do not know if I will have rubbing problems. If anyone has tried these tires and sizes can you let me know how it worked out. These sizes fall in the 3% tolerance for awd.

 

See this thread:

https://www.6speedonline.com/forums/...315s-rear.html

245 in ft will work, so I'm told, but you will need spacers.

If you go with 235/40/18 in ft with 315/30/18 in the back, you won't have any issues with the traction control systems and will work without spacers or rubbing.

There are people here that are running 275s in ft with heavy mods for fitment.

 

I just installed NT-01s in 235/40/18 and 315/30/18. I added spacers because of the 12" wide rear wheels and my IC to turbo piping was so damn close.

 

No spacers needed for the front in my experience. I have gone up to 255..

Only need a small spacer for the rear so it wont scratch the inside fender liner. Other then that, good to go.

 

f1, can you tell me what size spacers I would need.