[MooMooM2]

I need some camber plates stat.

This is driver side, passenger is fine and I flipped them but was already too late, started to chunck. Can I or should I get away with 1 more track day? Or are these toast? This tire would be on the other side of course and aHad I flipped the tires earlier would probably be fine but new to this. I was going to wait to do suspension before doing camber but might have to bite the bullet since still doing 3 more track days this year and want the next tires to last l.

Thinking about going potenza 71rs in 255/35/19 and 275/35/19. Or what else should I consider? The supercars look great but tire sizes kinda suck for 19

[Gotfuel]

I did that last season to a set of tires and was told by the Chief instructor, after having talked to a tire engineer that happened to be there with PCA that I was DONE for the weekend.

Missed the second part of the question. I’m running Millway camber plates on stock suspension, -2.5F/-1.0R on Falken RT660 tires staggered on stock OG 19s. Was really happy with the setup at PittRace this past weekend, and we had mixed conditions over 7 sessions. Tires were very stable pressure wise, very pleased. Ran 30F/32R on a 68 degree early morning sun, then rain, to 82 mid day sun to heavy wet Sunday afternoon. I was going to go with the Bridgestones, but had read they were “edgy” and maybe weren’t for a first timer on 200tw tires.

[M1500Z]

Those are done unfortunately—there's a lot of rubber left on the tire too, but that is about to cord and worse than having to toss tires is showing up and having your day or weekend cut short (hasn't happened to me yet, but I try to be proactive).

I went and looked at your build thread, you're on stock suspension? Get some camber in that car to extend your tire life. Not only is the shoulder toast, but the tire has been driving on the sidewall which is not good. May want to reassess cold/hot pressures as well.

RE-71RS is a magical tire but 2 things to consider

1. A tire capable of creating more lateral gs is likely going to induce more roll, thus want more static camber/roll stiffness.
2. Are you ready for, or wanting a grippier tire or do you think you can still learn and have fun on something that maybe makes less grip but also wears slower? Maybe a lapping tire like a GY Supercar 3 or Hankook RS4?

But before you do anything, get some more camber in that car. If you drive NYST often, you may have run into rhyary who has a lot of experience running that track and quite often talks about how abrasive the surface is. That is going to accelerate your tire costs if you don't have a good alignment.

[rhyary]

Unfortunetly, you don’t have another day on those tires.

You have one more session if you go slow, or put some serious PSI into them and practice low grip track.

If you were at NYST then you have my sympathy. Before I was on stiffer springs and -3.5 camber this is how my tires looked at the 2pm session starting the day new and going 1:38

[rhyary]

255/35/19 and 275/35/19 is a great combination of RE-71RS. The car will feel outstanding. Start on 28 front and 25 rear cold PSI, if you are not getting to 34-35 hot, either drive faster or add a PSI or two. If one end is not getting to 33-34-35, add some air to that end (or drive faster)

If the front go to 38, don’t add throttle before apex and increase entry speed.

[MooMooM2]

Originally Posted by Gotfuel

I did that last season to a set of tires and was told by the Chief instructor, after having talked to a tire engineer that happened to be there with PCA that I was DONE for the weekend.

Missed the second part of the question. I’m running Millway camber plates on stock suspension, -2.5F/-1.0R on Falken RT660 tires staggered on stock OG 19s. Was really happy with the setup at PittRace this past weekend, and we had mixed conditions over 7 sessions. Tires were very stable pressure wise, very pleased. Ran 30F/32R on a 68 degree early morning sun, then rain, to 82 mid day sun to heavy wet Sunday afternoon. I was going to go with the Bridgestones, but had read they were “edgy” and maybe weren’t for a first timer on 200tw tires.

What size are you running on the Falkens? What I am seeing *and have heard over and over* is that 19s just don't have a ton of tire size choices. I have also read that about the bridgestones but people swear by them.

Originally Posted by M1500Z

Those are done unfortunately—there's a lot of rubber left on the tire too, but that is about to cord and worse than having to toss tires is showing up and having your day or weekend cut short (hasn't happened to me yet, but I try to be proactive).

I went and looked at your build thread, you're on stock suspension? Get some camber in that car to extend your tire life. Not only is the shoulder toast, but the tire has been driving on the sidewall which is not good. May want to reassess cold/hot pressures as well.

RE-71RS is a magical tire but 2 things to consider

1. A tire capable of creating more lateral gs is likely going to induce more roll, thus want more static camber/roll stiffness.
2. Are you ready for, or wanting a grippier tire or do you think you can still learn and have fun on something that maybe makes less grip but also wears slower? Maybe a lapping tire like a GY Supercar 3 or Hankook RS4?

But before you do anything, get some more camber in that car. If you drive NYST often, you may have run into rhyary who has a lot of experience running that track and quite often talks about how abrasive the surface is. That is going to accelerate your tire costs if you don't have a good alignment.

I do know rhyary as he was my instructor on my 2nd track day ever at lime rock. I actually have not gone to NYST yet but will be going in October for the first time and also have heard its very hard on the tires and very hard on brakes as well. I will have new tires by then so now really considering camber plates before then because don't want to massacre my brand new set of tires. I need to pay more attention to tire pressure but I did measure it a few times and brought them down to 35 but I think last session I was running too low and definitely started going at it way too quick, should have let tires warm up more as I could hear and feel them rolling over. This was at Club Motorsport in NH, first time there but these tires have had at least 5 or 6 lime rock days (I am a newbie so they managed to last this long). Since limerock puts most stress on the driver side I should have really changed the fronts earlier, club also puts the most stress on the same tire so a few sessions and the tire looked like that.

I still have a lot to learn so not really married into getting the RE-71RS, only reason is that I hear good things and size availability. That said I would be happy to get the supercars 3 if they are longer lasting and go down a few sizes to 19/35/245 and 19/35/265. As of right now I think I would definitely take durability over grip.

I will definitely invest in some camber plates (I am still on stock suspension) in the meantime though, was just waiting till next year and do plates and suspension but might have to just do either plates this year or both.

Originally Posted by rhyary

Unfortunetly, you don’t have another day on those tires.

You have one more session if you go slow, or put some serious PSI into them and practice low grip track.

If you were at NYST then you have my sympathy. Before I was on stiffer springs and -3.5 camber this is how my tires looked at the 2pm session starting the day new and going 1:38

wow, yeah thats not good. it sounds like a fun track but at the expense of chewing some tires. I won't be going 1:38 so I will probably be fine but would love not to have to replace a new set of tires after 1 day there (and its a 7 session day) so I will invest in at least some camber plates before October.

Hope you are doing well and the m3 is back!

[MooMooM2]

Originally Posted by rhyary

255/35/19 and 275/35/19 is a great combination of RE-71RS. The car will feel outstanding. Start on 28 front and 25 rear cold PSI, if you are not getting to 34-35 hot, either drive faster or add a PSI or two. If one end is not getting to 33-34-35, add some air to that end (or drive faster)

If the front go to 38, don’t add throttle before apex and increase entry speed.

yeah that is why I was mostly looking at the RE-71RS, that would be a good size, the supercars would have to be 245/265 (which I believe its stock and probably ok for my level but always happy to squeeze some more rubber in, the ps4s that are going in the trash are 265/30/19 and 295/30/19 but I want to go back to less stagger anyways)

[rhyary]

265/30/19 you are riding on the rims.
In general stay away from x/30/19 until you got to 285/30/19 and 305/30/19 and you no longer care about your inner fenders.

We had fun at Lime Rock. Let me know if you come to NYST

[MooMooM2]

Originally Posted by rhyary

265/30/19 you are riding on the rims.
In general stay away from x/30/19 until you got to 285/30/19 and 305/30/19 and you no longer care about you inner fenders.

We had fun at Lime Rock. Let me know if you come to NYST

I will glady move to to a 35 sidewall.


I will be at NYST October 7th with masstrack, are you going to be there?

Also do you have a suggestion to get a good alignment in Albany or around there? Or North Jersey?

I was going to try to go to Highline, maybe have them install the camber plates but definitely do an alignment if I decide to install them myself.

[rhyary]

I put Oct 7th @ NYST on my calendar

[MooMooM2]

Originally Posted by rhyary

I put Oct 7th @ NYST on my calendar

amazing, I will see you there.

will be my first time so going to see if masstuning can get me an instructor, are you instructing that day? Maybe I can ask for you. They prioritize novice so hopefully they can get me one in int. I was just at club motorsports and was glad to have an instructor, my track experience is only limerock and club is a whole different experience, very cool track, had a great time.

[rhyary]

Sure.
You can ask for me.
I’ll register as an instructor for that day.
You should try to make it to WGI later in the month. MassTuning will be there on Oct 20-21.

[DrChase]

Originally Posted by Gotfuel

I did that last season to a set of tires and was told by the Chief instructor, after having talked to a tire engineer that happened to be there with PCA that I was DONE for the weekend.

Missed the second part of the question. I’m running Millway camber plates on stock suspension, -2.5F/-1.0R on Falken RT660 tires staggered on stock OG 19s. Was really happy with the setup at PittRace this past weekend, and we had mixed conditions over 7 sessions. Tires were very stable pressure wise, very pleased. Ran 30F/32R on a 68 degree early morning sun, then rain, to 82 mid day sun to heavy wet Sunday afternoon. I was going to go with the Bridgestones, but had read they were “edgy” and maybe weren’t for a first timer on 200tw tires.

I’m jealous of the staggered 19” dudes. I wouldn’t change from my square sets (one for track and one for street), but I wish I had more options than RT660. I like my RT660s (on my third set of 275/30r19), but they’re literally my only 200TW option in the 265/30r19 and 275/30r19 space. I’ve got PS4S in 265/30 for street, but not even the 265 has a decent selection. I’d hate to drop $8K on an AP kit, but it might come to that, seeing as how I refuse to let go of the square setup. Square makes the M2C freaking magical, especially with coilovers and plenty of camber.

[AlpinewhiteM2C]

Originally Posted by DrChase

I’m jealous of the staggered 19” dudes. I wouldn’t change from my square sets (one for track and one for street), but I wish I had more options than RT660. I like my RT660s (on my third set of 275/30r19), but they’re literally my only 200TW option in the 265/30r19 and 275/30r19 space. I’ve got PS4S in 265/30 for street, but not even the 265 has a decent selection. I’d hate to drop $8K on an AP kit, but it might come to that, seeing as how I refuse to let go of the square setup. Square makes the M2C freaking magical, especially with coilovers and plenty of camber.

Nankang came out with their version 2 of the CR-S 200tw tire. They are available in 265/30/19 for the front and 295/30/19 for the rear. I'm considering these for next year: https://philstireservice.com/product...-cr-s-v2-2023/

Edit: Just re-read your post and you're looking for 19" square set up tires. In that case you're right, very limited in the 19" tire space.

[Elganja]

Originally Posted by AlpinewhiteM2C

Nankang came out with their version 2 of the CR-S 200tw tire. They are available in 265/30/19 for the front and 295/30/19 for the rear. I'm considering these for next year: https://philstireservice.com/product...-cr-s-v2-2023/

Edit: Just re-read your post and you're looking for 19" square set up tires. In that case you're right, very limited in the 19" tire space.

any reason you are selecting those over the re71rs?

[DrChase]

Originally Posted by AlpinewhiteM2C

Nankang came out with their version 2 of the CR-S 200tw tire. They are available in 265/30/19 for the front and 295/30/19 for the rear. I'm considering these for next year: https://philstireservice.com/product...-cr-s-v2-2023/

Edit: Just re-read your post and you're looking for 19" square set up tires. In that case you're right, very limited in the 19" tire space.

Thanks for this. I read about CR-S, and I like AR1, so I might give them a shot in 265 square, if I don’t try to get some custom caliper brackets and a 380mm rotor kit before then! Seems some M2C owners have managed to retain the 2NH and fit 18” wheels by swapping brackets and rotors. I’m trying to find out how to find a bracket to make it work.

[AlpinewhiteM2C]

Originally Posted by Elganja

any reason you are selecting those over the re71rs?

Elganja - I can only run 255/ 275 if I go w/ the RE71RS. The M2C could really use more tire in the rear which makes the 265/295 sizes that Nankang offer appealing.

[Elganja]

Originally Posted by AlpinewhiteM2C

Elganja - I can only run 255/ 275 if I go w/ the RE71RS. The M2C could really use more tire in the rear which makes the 265/295 sizes that Nankang offer appealing.

Ahh gotcha - yeah the 275/35 is an odd size, it rubs a little when i am super loaded, or hit a big dip (running -2.1 camber in the rear)

I wish RE71RS had more size options, it has been a fantastic tire for me thus far. But i'm always looking for an alternative. But tbh, these are on my track wheels, so I don't think i'll switch to another one

[rhyary]

Originally Posted by AlpinewhiteM2C

Elganja - I can only run 255/ 275 if I go w/ the RE71RS. The M2C could really use more tire in the rear which makes the 265/295 sizes that Nankang offer appealing.

.
The 255 / 275 is a very fast configuration.
So the fact that you can get RE-71RS in these sizes makes it a compellent configuration.

The 35 aspect ratio is important. The tires are important component of the suspension.

For example, the Porsch GT3 RS is a track day focused car. The rear 335/30/21 has 4” sidewall and the front 275/35/20 has 3.8” sidewall.

A 255/35/19 has 3.5” sidewall and the rear 275/35/19 has a 3.8” sidewall. So to go below those sidewall sizws by going wider is not necessary better or faster.

Just one factor to consider. There are many others that also need attention.

While I am on a different car, I do drive 19” wheels and have personally tried any combination tires sizes that fit (and does not fit).

[AlpinewhiteM2C]

Originally Posted by rhyary

.
The 255 / 275 is a very fast configuration.
So the fact that you can get RE-71RS in these sizes makes it a compellent configuration.

The 35 aspect ratio is important. The tires are important component of the suspension.

For example, the Porsch GT3 RS is a track day focused car. The rear 335/30/21 has 4” sidewall and the front 275/35/20 has 3.8” sidewall.

A 255/35/19 has 3.5” sidewall and the rear 275/35/19 has a 3.8” sidewall. So to go below those sidewall sizws by going wider is not necessary better or faster.

Just one factor to consider. There are many others that also need attention.

While I am on a different car, I do drive 19” wheels and have personally tried any combination tires sizes that fit (and does not fit).

I agree that the 255/275 is a fast combo; these are the sizes of my current A052 setup. I want to try a wider set up for autocross in particular as you can't have too much tire in autox. I did notice that the 255/275 RE71rs in 19s are much cheaper than the Nankangs (almost $100 a tire). I don't know if I'll get the ROI commensurate with a 25% increase cost for the Nankangs so I it may be RE71rs for next season afterall.

[///MPhatic]

Originally Posted by AlpinewhiteM2C

Nankang came out with their version 2 of the CR-S 200tw tire.

AD09 FTW.

[fleetfoot]

As long as we’re talking tires, I’d love opinions on mine. This is a square PS4S setup with -2.8 camber in the front. I’ve got 6/32” tread left pretty consistently all around. But shoulder wear seems to be the limiting factor. These tires have 9 days (45 heat cycles) on them now. How many more days could they go?