Hello everyone, new 987.1 CS owner here. Starting my build, and I need to confirm some offsets for the track setup I am using.

Can somebody confirm if you can use the following wheel/tire sizes without rubbing. My alignment will be full track setup, so at least -3F/-2R or more.

It seems a popular wheel size/offset is below, but can it work with the tire sizes I plan to run? From my research it seems so. I'm also told by some wheel companies.....yes, no problemo, but I would like to hear from those who run a 275-40-18 rear NT01, or know.

Front - 18 x 8.5" ET45 on 245-40-18
Front - 18 x 10" ET38 on 275-40-18

I know I can run a 275-35, but I don't want to. I will be using the 275-40. Thanks for your help.

 

This might be a help in addition to real world experience of others

https://rennlist.com/forums/tire_rim_calculator.php

 

9x18 et50
10x18 et38
will not rub with your tire of choice

rear you can go as big as 10.5
front as big as 10
but uou have to pull, roll the fk out of your fenders.

these are from personal experience actually fitting on my car but it's a 987.2