New 200 Rating tire....

[thedge9]

Originally Posted by redpriest

Yes. Done two track days on them at Laguna Seca. I can?t give you an apples to apples comparison with anything other than Pirelli slick tire, but it wears like iron and has decent grip.

Did 1:42 laps on RS4 in my M4; 1:41 even laps with Pirelli in the same car. Would have been faster but had some brake issues.

FWIW I do 1:42s with RE71R in my E92 as well.

I did 10k street miles on them with -3.7 camber in front and the inner shoulder held up really well.

So after much searching, it seems that the RS3 and RS4 are not available in my size (275/35X18). The tire rack says that hankook has them marked as discontinued. I cant find them anywhere and had my local shop call hankook and they cant get a straight answer.

So... I you were to choose then next best tire thinking of the same parameters what would you choose?

[///Mobbin]

Originally Posted by thedge9

So after much searching, it seems that the RS3 and RS4 are not available in my size (275/35X18). The tire rack says that hankook has them marked as discontinued. I cant find them anywhere and had my local shop call hankook and they cant get a straight answer.

So... I you were to choose then next best tire thinking of the same parameters what would you choose?

RE-71r or NT-01

[Richbot]

Or you can try the 285/35-18 if you can tolerate a bit of fender liner rubbing at near full lock

[///Mobbin]

slicer SYT_Shadow and anyone else interested in Cup 2's.

So I just ran my 265/295 Cup 2 setup at COTA for 3 days, 12 sessions. In summary, the tires performed quite well and generally met my expectations in terms of grip. I could feel the car had more rear-end grip with the wider rear tires but there is a learning curve there and it took me most of the weekend before I started using the grip (ie. more throttle sooner when coming out of a corner). What was the most interesting find to me, and one of the main reasons I wanted to try Cup 2's again, is that unlike the RE-71r's I've been running, the Cup 2's did not get greasy in the latter part of each session. A few caveats here, it was a cooler weekend, and my last outing on RE-71r's was a warm weekend on old tires, still though I would say the Cup 2's can handle the heat better than the re-71r's. With that in mind I noticed I could set PR or near-PR times anywhere in a session whereas with RE-71r's it seemed like it needed to be in the first few laps. That's a huge plus b/c I was dealing with traffic and couldn't always get a clean lap in early in a session.

Now the downsides to Cup 2's are also worth noting. First, they cost way more than the other options. I'm somewhat okay with that as I don't get to the track that often and for that reason am not buying tires as often as some. What I did not expect or account for is the increased wear rates on the outer edges of the front tires vs RE-71r's. After 12 sessions, the driver front outside edge looks halfway gone while the rest of the tire looks like it has 90% left. My camber settings are -2.6 front and -1.8 rear, I would definitely recommend going -3 or more in the front and plan to adjust to -3 or maybe -3.2 front and -2 rear before I hit the track again. I also forgot to swap left-to-right halfway through the weekend as I had planned. Unfortunately I will probably end up buying 2 new fronts after one more track weekend (8 more sessions). The rears look much better.

I also got some extremely light rubbing on the outer edges of the rears when my car was loaded down. This is probably unique to my low ride height and the additional rear camber should solve this, TBD.

I am still figuring out if I will go Cup 2's again, tough call and I may need to get through my reverse track season with these before I fully decide. Right now I am thinking to go NT-01's next but I also change my mind daily

[SYT_Shadow]

Thank you for the feedback

My experience running the PSC2 on a Z4MC is that it's a very fast tire for the first 3 laps, then the grip goes down to 80-90% and stays there until the tires cord.

I've also seen the soft sidewalls in action.

[///Mobbin]

Anyone familiar with the Dunlop Direzza 03G?

They come in 265/35R18 and 295/30R18 and can be purchased from some overseas tire shops but I haven't found them for sale in the U.S. yet.

[SYT_Shadow]

I'd like to see information on:

Yoko A052
BFG Rival S 1.5
Kumho Ecsta V720

[macdude357]

Originally Posted by SYT_Shadow

I'd like to see information on:

Yoko A052
BFG Rival S 1.5
Kumho Ecsta V720

Simon@RENNSpec is killing it in Bimmer Challenge in his M2 on the Yoko A052 so those seem to be the real deal.

If you look on the Tire Rack page for the V720 they say to not drive those tires on a track (autocross and street only).

I don't think the Rival S 1.5 comes in any size that would fit on our cars.

[Exclusivs]

Originally Posted by macdude357

Simon@RENNSpec is killing it in Bimmer Challenge in his M2 on the Yoko A052 so those seem to be the real deal.

If you look on the Tire Rack page for the V720 they say to not drive those tires on a track (autocross and street only).

I don't think the Rival S 1.5 comes in any size that would fit on our cars.

Have been wondering why no love for A052's ... been an interesting offering, especially in it's given sizes.

[///Mobbin]

Really curious to try the A052's. Would it be strange to run new A052's on the front and older Cup 2's on the rear for one event? I hate wasting tires but I know I will need new fronts before rears with the current wear on this set. Thoughts appreciated.

[macdude357]

Originally Posted by ///Mobbin

Really curious to try the A052's. Would it be strange to run new A052's on the front and older Cup 2's on the rear for one event? I hate wasting tires but I know I will need new fronts before rears with the current wear on this set. Thoughts appreciated.

I was wondering this same thing. I would think you'd want to put the stickier tires in the rear in case there is a fairly large disparity in grip. It's easier to deal with understeer in slower corners with a little more trail braking but dealing with oversteer in fast corners is no fun.

[slicer]

Originally Posted by ///Mobbin

Really curious to try the A052's. Would it be strange to run new A052's on the front and older Cup 2's on the rear for one event? I hate wasting tires but I know I will need new fronts before rears with the current wear on this set. Thoughts appreciated.

Originally Posted by macdude357

I was wondering this same thing. I would think you'd want to put the stickier tires in the rear in case there is a fairly large disparity in grip. It's easier to deal with understeer in slower corners with a little more trail braking but dealing with oversteer in fast corners is no fun.

My cup2's fronts are wearing faster than the rears so I swapped a fresh set (*of Cup2's) on the front. I was surprised at the grip discrepancy between the tires. My car was very tail happy. That being said, I put my old fronts on the car and I was experiencing the opposite - understeer. Personally, after experiencing both scenarios, I would much rather have oversteer than understeer.

[Z K]

Originally Posted by slicer

My cup2's fronts are wearing faster than the rears so I swapped a fresh set on the front. I was surprised at the grip discrepancy between the tires. My car was very tail happy. That being said, I put my old fronts on the car and I was experiencing the opposite - understeer. Personally, I would much rather have oversteer than understeer.

So you're saying the A052 has more grip than the cup 2 in the front?

[slicer]

Originally Posted by Z K

So you're saying the A052 has more grip than the cup 2 in the front?

no, I think you misunderstood - or actually I wasn't very clear. I was talking about new versus old cup 2's.

Applying to the question as to whether it would be OK to run the new A052 with a used Cup 2 in the rear. I would expect the new A052 to have more grip than a used Cup 2. I have no experience with the A052 to I can't speak to it's grip level compared to the Cup2 when new.

[SYT_Shadow]

Unfortunately the psc2 apparently drops max grip really quickly. Then it's quite stable at the lower level of grip

[slicer]

Originally Posted by SYT_Shadow

Unfortunately the psc2 apparently drops max grip really quickly. Then it's quite stable at the lower level of grip

I can confirm based on my experience

[Z K]

Originally Posted by slicer

no, I think you misunderstood - or actually I wasn't very clear. I was talking about new versus old cup 2's.

Applying to the question as to whether it would be OK to run the new A052 with a used Cup 2 in the rear. I would expect the new A052 to have more grip than a used Cup 2. I have no experience with the A052 to I can't speak to it's grip level compared to the Cup2 when new.

I see.

Oh well, I guess we'll wait for someone to have some feedback on the A052 then.

[///Mobbin]

Originally Posted by macdude357

I was wondering this same thing. I would think you'd want to put the stickier tires in the rear in case there is a fairly large disparity in grip. It's easier to deal with understeer in slower corners with a little more trail braking but dealing with oversteer in fast corners is no fun.

Originally Posted by slicer

My cup2's fronts are wearing faster than the rears so I swapped a fresh set (*of Cup2's) on the front. I was surprised at the grip discrepancy between the tires. My car was very tail happy. That being said, I put my old fronts on the car and I was experiencing the opposite - understeer. Personally, after experiencing both scenarios, I would much rather have oversteer than understeer.

Appreciate the thoughts, I went ahead and ordered some more 265/35ZR18 Cup 2 fronts to have on hand in case I need them. The a052's will have to wait for another day.

[leo95se]

Based on the indicative price point of the Yokohama why isn’t anyone running slicks? Is it a class or suspension driven decision?

[kyrix1st]

We had these in JP for some years... A052s grip like hell it would break your hubs fairly quickly.

[SYT_Shadow]

Originally Posted by leo95se

Based on the indicative price point of the Yokohama why isn’t anyone running slicks? Is it a class or suspension driven decision?

If you drive your car to the track and can't store 4 tires in the car you don't have a choice

Besides, it is always entertaining to be the 'i drove to the track on street tires and won the hpde trophy'

[///Mobbin]

Lol, street tire HPDE championship has become a thing. Admittedly part of the problem.