Yesterday I autocrossed for the first time with my GR86 and I put RT660s on it. (Quick background, I've autocrossed a few years in a 4 door Accord and PS4Ss. it also was the first time driving on 200tw tires). The thing I took away from the day was how hard it was to tell when I was at the limit of traction. I've read the GR86 is a little tail happy to being with, but certainly sounds like the tires played into that based on your review. The times I did get right at the limit where the back end would have the slightest of rotation, the outright grip wasn't quite what I was expecting based on how fast I could corner with a 3600lb car wearing PS4Ss. Oh well, still a fun day and one day isn't enough to come to a solid conclusion. Thanks for the review.
Came across this review and thought i would offer my two cents about Yokes vs the 660's. I had the Yokes on my 05 Corvette and I liked them initially has they had amazing grip on cooler days and for the first couple of runs on hot days but on my car when the yoke got hot they got really slick. The other issue I had with them was I did a track day out a Pitt Race and the Yokes were never the same after that and had to be replaced after a year and half. I went with the 660's and while they don't have the inital grip of the Yokes they after the first couple of runs they are very grippy and stay more consistent through out an event which I like. I have not done a track day on these yet so I can't comment on their track performance yet. But for my car i like the 660's better than the Yokes because they are more consistent.
So I’ve run the 660 in autocross and HPDE/TT. They are much more of an autocross/TT tire than HPDE. It’s not that they are bad but they do overheat easily and can have tread splicing issues when overheated, I’ve personally experienced it and it’s the only reason I mention it. I’ve since switched to the kumho V730. Way better of a track day tire. The have better feel than the 660 or yokes while being more consistent and better with heat management. Can’t recommend them enough if you aren’t looking for ultimate pace but don’t want an endurance tire. Ps I run an e36 m3.
I know the Yokes are quicker as the new Stones however those 2 tires are asymmetrical vs the symmetrical 660's. If your running in a street class with limited camber and wheel width the 660's can be flipped once the outside edge gets worn offering longer life of the tire, not so on the other tires. Wish the Stones kept the symmetrical tread pattern. Also the location of the autocross events I run are on concrete not asphalt which apparently lose less time because of the added grip of the surface.
Have you run these tires on a grippy surface? Pitt Race is so slick. These tires aren’t great for that location. They have been really good for me on high grip surfaces. Much better than the Yokes which I ran last year. I believe Eric Coffman has a simple take. I also will say that on the GT4 they were great on the street. Aggressively drove Tail of the Dragon and the Snake. They were fabulous. They are however, horrible in the wet.
North Park is relatively grippy and I didn't like them there. Or Mid-State airport. I think most of my problem was just the amount of runs I took with them and after 100 runs, they were pretty much dead. The last ~130 were terrible. Street driving they were certainly grippy enough for that even then though.
Would you still recommend the rt660s for a beginner? Im not trying to win anything anytime remotely soon, so I may as well use a cheaper and longer lasting tire until I wear through them right? Like a "learner" tire. uhhh.. i have wrx so nevermind lmaoo i hate understeer so I have to go into corners pretty slow and trailbrake A LOT to get the car to rotate at the apex
It’s good for a learner tire if you’re getting up there and have a season or so under your belt. First season, I still recommend something like just a basic all season. Having that little grip really makes you learn the correct line and not overdrive, which helps in the long run.
I’d almost say just the opposite. Camber certainly helps, but the 660’s are known to work without it if your limited like we have in street class for autocross.
![Chasing a Laptime (RT660 Vs. NT01 my OPINION) [EPISODE 4]](http://i.ytimg.com/vi/IzcBB-E2gD4/mqdefault.jpg)
Yesterday I autocrossed for the first time with my GR86 and I put RT660s on it. (Quick background, I've autocrossed a few years in a 4 door Accord and PS4Ss. it also was the first time driving on 200tw tires). The thing I took away from the day was how hard it was to tell when I was at the limit of traction. I've read the GR86 is a little tail happy to being with, but certainly sounds like the tires played into that based on your review. The times I did get right at the limit where the back end would have the slightest of rotation, the outright grip wasn't quite what I was expecting based on how fast I could corner with a 3600lb car wearing PS4Ss. Oh well, still a fun day and one day isn't enough to come to a solid conclusion. Thanks for the review.
Came across this review and thought i would offer my two cents about Yokes vs the 660's. I had the Yokes on my 05 Corvette and I liked them initially has they had amazing grip on cooler days and for the first couple of runs on hot days but on my car when the yoke got hot they got really slick. The other issue I had with them was I did a track day out a Pitt Race and the Yokes were never the same after that and had to be replaced after a year and half. I went with the 660's and while they don't have the inital grip of the Yokes they after the first couple of runs they are very grippy and stay more consistent through out an event which I like. I have not done a track day on these yet so I can't comment on their track performance yet. But for my car i like the 660's better than the Yokes because they are more consistent.
So I’ve run the 660 in autocross and HPDE/TT. They are much more of an autocross/TT tire than HPDE. It’s not that they are bad but they do overheat easily and can have tread splicing issues when overheated, I’ve personally experienced it and it’s the only reason I mention it. I’ve since switched to the kumho V730. Way better of a track day tire. The have better feel than the 660 or yokes while being more consistent and better with heat management. Can’t recommend them enough if you aren’t looking for ultimate pace but don’t want an endurance tire. Ps I run an e36 m3.
I know the Yokes are quicker as the new Stones however those 2 tires are asymmetrical vs the symmetrical 660's. If your running in a street class with limited camber and wheel width the 660's can be flipped once the outside edge gets worn offering longer life of the tire, not so on the other tires. Wish the Stones kept the symmetrical tread pattern. Also the location of the autocross events I run are on concrete not asphalt which apparently lose less time because of the added grip of the surface.
Have you run these tires on a grippy surface? Pitt Race is so slick. These tires aren’t great for that location. They have been really good for me on high grip surfaces. Much better than the Yokes which I ran last year. I believe Eric Coffman has a simple take. I also will say that on the GT4 they were great on the street. Aggressively drove Tail of the Dragon and the Snake. They were fabulous. They are however, horrible in the wet.
North Park is relatively grippy and I didn't like them there. Or Mid-State airport. I think most of my problem was just the amount of runs I took with them and after 100 runs, they were pretty much dead. The last ~130 were terrible. Street driving they were certainly grippy enough for that even then though.
Loved my AO52's type-R autcross super grippy on asphalt!
Would you still recommend the rt660s for a beginner? Im not trying to win anything anytime remotely soon, so I may as well use a cheaper and longer lasting tire until I wear through them right? Like a "learner" tire.
uhhh.. i have wrx so nevermind lmaoo
i hate understeer so I have to go into corners pretty slow and trailbrake A LOT to get the car to rotate at the apex
It’s good for a learner tire if you’re getting up there and have a season or so under your belt. First season, I still recommend something like just a basic all season. Having that little grip really makes you learn the correct line and not overdrive, which helps in the long run.
ok cool, im running some all seasons right now so guess ill stick to that. Thanks a bunch.@@cmiovino
you probably can try nankan CRS I think, AO52 just dont last....
Need more camber to run this rt660s
I’d almost say just the opposite. Camber certainly helps, but the 660’s are known to work without it if your limited like we have in street class for autocross.
@@cmiovino they work without but better with proper camber said by falken tires them self’s