Have a bone stock 14 base auto (3.15 gear) that had the stock 235 p-zero's. They weren't a very good tire really, so I upgraded to stock size pilot super sports.
Somewhat better, but still able to easily spin them up the street. Thinking about going to a 275/40/18 NT-05 (not a DR) out back on a 10 inch rim (with a 245 wide on a 9 inch rim in front) and wondering if that will be enough for a stock auto to get it out of the hole, with only a moderate spin at most.
Suspension mods are out of the question, as I plan on extended warrantee and keeping it very stock. I already have 7 other vehicles to maintain, so I need one I don't have to mess with too much for 7 or so years.
86 Capri, turbo, 3.27's-12.66 @ 107.75