It's not so much Forgestars as it is the best offset to get the most rubber possible under the car on a light and strong rim. The Forgestars are cheap for the weight and strength. I want to get a 245 on the front and I think a 30 offset would work. On the rear I know Rudy had a 19x9.5 with a 25mm offset and a 295 on the rear. So I believe a 25 mm offset on a 18x10 will work. The tire sizes I'm thinking are slightly shorter than stock. Part of my thinking is because I'm lowered. A 235/40/18 fit on the stock rims and didn't rub the nut on the inside. Real close. With a 10 mm spacer I had slight rubbing on the outer screws for the fender liner. So 5 mm on the inside and 15 mm on the outside should work. (235 is 10mm wider than a 225) Rims and tires calculator has been a great help. But no matter how much I measure and calculate I'd love to hear from personal experiences how big and what offsets have been tried.

Les