Pics of pro-touring Duster with 20s?

72bluNblu said
Yeah that pretty much goes with what I'm seeing. Possible, but everything has to be perfect and the quarter lips would probably need to be trimmed back/rolled to get the 255's under there comfortably without an offset.

For educational purposes, my '71 GT has an A-body 8 3/4 with Dr. Diff BBP axles and 11x2.5" drums. With the stock spring locations, I have 6" from the wheel mounting surface to the springs, and 5" from the wheel mounting surface to the stock quarter lip. One side has an 1/8" more the the springs, so it's pretty well centered. 11" to work with and that has to include the clearance. Most 255's have a section width of 10" to 10.2". So, it gets really close. If it's 10", there should be enough room without cutting. If it turns out to be 10.2" or smidge more, they'll need trimming.

Decisions, decisions. :-k .

I'm running Michellin Super Sport tires. They're pretty good at everything but not the best (I have them on the front of my daily driver). They're probably somewhere around the top 10 best autocross tires, have better wear characteristics than most tires that are raced (300TW instead of 200TW), are a couple lbs lighter than some of the other autocross tires, and they'll be good enough to handle a road course (rated to 186+ mph).

The only other performance/competitive tires that come in that size are the Bridgestone RE-71R (currently the #1 autocross tire but wears out extremely quickly) or the Yokohama Advan Neova AD08 R (I really haven't heard much about the tire but it's 180TW which takes it out of most autocross classes for us who run or will run CAM).

Going to a 245/40/18 will give you twice as many tire options as the 255/40/18. The 275/35/18 will give you about the same amount of tire options but leaning more towards the competitive side of things instead of purely street. So, it really just depends on how you want your car to look and what tires you have available.

I saw my car at the shop on Saturday as they had a small Cars and Coffee and when I saw the 255's up front and out back I said to myself, "Man, I wish I could have 275's on there." For, me they don't look wide enough and I'm not sure the 255's will be able to handle the torque of the 360 that's going in.

Picture of the back of my car at Hotchkis's Cars and Coffee...