Tire question to the A/X people - I’m slipping away, what’s your favorite tire for handling/grip on AX?? and any other set up advice Options

[DRPHIL914]

After having a bit of fun at my first local PCA AX here in Atlanta,
I realize that I definitely need better tires than my Firestone Firehawk Indy 500. I was only 2 seconds behind a very nice 1976 911 and a 1979/80 SC 911, but cold have done better with better tires and a bit more camber and toe adjustment i think.

—
i’m looking for advice on tires and my track adjustment . i’m running 205/55-16 6” up front and 7” in rear, stock sway bar rear and front with Tarett front drop links.
motor i think ran well, 3 year old 2056 build with stock he and Ben’s muffler.


Thanks for the help.

Phil

[JamesM]

After having a bit of fun at my first local PCA AX here in Atlanta,
I realize that I definitely need better tires than my Firestone Firehawk Indy 500. I was only 2 seconds behind a very nice 1976 911 and a 1979/80 SC 911, but cold have done better with better tires and a bit more camber and toe adjustment i think.

—
i’m looking for advice on tires and my track adjustment . i’m running 205/55-16 6” up front and 7” in rear, stock sway bar rear and front with Tarett front drop links.
motor i think ran well, 3 year old 2056 build with stock he and Ben’s muffler.


Thanks for the help.

Phil

"Street" tire classes Bridgestone RE-71RS or BFG Rival S 1.5 tend to be the two fastest. BFG only has a single size in 16" though 215/45/16 with you may not be able to get to work on a narrow body car without perfect wheel fitment. The Re71-RS tends to edge out the Rival in some tests but the rivals are super easy to drive and dont require as much precision to get the most out of them and dont seem to need a ton of camber. They are a ton of fun. Either one will blow your mind if you have never driven modern autocross "Street" tires though and depending on what you are running now may alone be worth 2 seconds.

Hoosier A7s if you want to go all out and are not limited by class rules.

If you want to maximize grip go to a 7" wheel up front too. 7" is perfect for a 205.

You didnt mention what rear springs you have but depending on what your car is doing you may want to try running with the rear swaybar disconnected. Helps keep the rear planted especally if you have stiffer than stock rear springs.

Probably don't want to go messing with toe quite yet if its your first autocross. Seat time and some good tires and you should be walking all over any air cooled 911.