R compounds will flatspot if you let the car sit on them. The also do not age well and heatcycle out VERY quickly.

 

Well I'll be damned...
Didn't know about them flatspotting like that. Well learn something new every day.

 

that's bullshit... they'll be fine.

If you want a R compound that'll work ok for autocross, track events, and drag racing, the Toyo RA1 might be the tire for you. I've never had a set of tires that hooked up so well on launch. And once you get over the soft sidewall, and huge slip angles, they actually grip pretty well.

Also, they only get better with heat cycles, and a lot of road racers use them as rains, so that's not a huge issue as long as you're intelligent about it. Of course, they aren't quite as cheap as the Victoracers or Escta V700s, but they'll last longer.

 

Come tell that to the Ecsta v700 that dumbass me forgot to flip on it's side 6 months ago.

 

The most the car would sit at a time would be maybe a week or so.

 

6 months... REGULAR TIRES will do that.

 

I think I'm going to go with the MXs to start, as the car won't be stupid fast and need super mega grip. If I don't like them, I won't have a problem burning through them quickly, and I'll move on to try another set.