Ron L
Well-Known Member
- First Name
- Ron
- Joined
- Nov 29, 2024
- Threads
- 9
- Messages
- 208
- Reaction score
- 322
- Location
- SW Florida
- Car(s)
- 2025 Toyota Supra & 2024 Toyota Rav4
- Thread starter
- #16
That's good info, thanks. I don't know how much I'll autoX in the future. The local club shuts down for July and Aug because it's just too hot, especially standing out on a black runway.I got my Supra last year and started doing autox with it this year in B Street. I think we have some similarities with what format we prefer. I’ve mostly been doing autox throughout the year (~24 events per year, or 12, 2-day weekend events) for the past several years, and I do 2-3 track days during the cooler months.
Out here in CA, the venue I most frequent for autox is on an old airfield where the concrete is very high-grip but very abrasive (Crows Landing). I run the stock size Bridgestone RE71RS on the stock 19” wheels. I have an aftermarket front anti-roll bar and the OE camber correction spindles (“swivel bearings”?) for the extra ~-0.5° camber.
After 3, 20-min track sessions followed by ~50 autox runs on our concrete site, the outer shoulders of my front tires were about to show cord. The rears still have some life left have been wearing fairly evenly across the tread. I haven’t done any autox on any other surface or site with the Supra so far, but I’d assume that the tire wear from this particular concrete site is one of the more extreme cases. Even though RE71RS seem to wear quicker than the other fast 200TW tires (CRS, RT660), I think with your frequency and type of events, I would guess that a set of RE71RS could last a season which is about as long as I’d want to use any set of tires for best performance.
If you’re sticking to B Street and the limitations on front camber that come with it, A052 have a pretty soft construction and may wear out even quicker if used in the front. Just something to consider.
Hope this serves as a decent data point.
After almost 20 years of wheel to wheel racing in the SCCA, autoX was an easy way to see how the Supra preformed before doing a track day. But 4 or 5 minutes of track time at an autoX, for spending most of a day at the site, doesn't seem worth it anymore. Even track days get kind of boring after 2 or 3 sessions. It's kind of like the first practice session on a race weekend. Qualifying was a bit more fun. But race day is were all the real fun was!
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