New ai/cmc tire thread

[t500hps]

I came into CMC (Mid Atlantic) mid 2013 so I have limited experience on the old RA1's. I was the first in our region on RR's at the beginning of 2014 and have tracked heat cycles for every tire since. Most I've gotten was 36 H/C out of a set of 4. Least was in the low 20's due to not rotating them well.....usually I get 30. I've found my car doesn't even like them the first 3 H/C. I've set track records at 2 different tracks, once on 22 H/C tires and another track using 18 H/C tires. I've learned how each corner of the car wears each tire differently and rotate them for longest life. A typical 7-8 weekend race season is typically 6 tires for me. (Due to stocking up for Nationals in 2015 and 2016 I ran the entire 2017 season without buying a single set of tires. My "newest" 2 sets have 2015 and 2016 dates codes. They have 14 and 21 H/C respectively and I'll use them til mid-season before buying another set)

Hopefully I can make it to COTA in Sept so we can see if I'm actually competitive (obviously I think I am )

[mach1]

I came into CMC (Mid Atlantic) mid 2013 so I have limited experience on the old RA1's. I was the first in our region on RR's at the beginning of 2014 and have tracked heat cycles for every tire since. Most I've gotten was 36 H/C out of a set of 4. Least was in the low 20's due to not rotating them well.....usually I get 30. I've found my car doesn't even like them the first 3 H/C. I've set track records at 2 different tracks, once on 22 H/C tires and another track using 18 H/C tires. I've learned how each corner of the car wears each tire differently and rotate them for longest life. A typical 7-8 weekend race season is typically 6 tires for me. (Due to stocking up for Nationals in 2015 and 2016 I ran the entire 2017 season without buying a single set of tires. My "newest" 2 sets have 2015 and 2016 dates codes. They have 14 and 21 H/C respectively and I'll use them til mid-season before buying another set)

Hopefully I can make it to COTA in Sept so we can see if I'm actually competitive (obviously I think I am )

We would love to have you at COTA, I have learned from CMC and SM, Texas has some GREAT competition/drivers.
Look forward to meeting you!

[t500hps]

We would love to have you at COTA, I have learned from CMC and SM, Texas has some GREAT competition/drivers.
Look forward to meeting you!

I've followed TX a little on this forum since it seems to have the largest CMC field and the competition seems tight......between Mid Atlantic and Great Lakes not sure who is second largest. Last year we had between 6 and 13 CMC cars at our races. We paddock together, work on each others cars, and all live close enough that we get together outside of racing pretty regularly......and the ball bustin is brutal!

[39PitCrew]

I've followed TX a little on this forum since it seems to have the largest CMC field and the competition seems tight......between Mid Atlantic and Great Lakes not sure who is second largest. Last year we had between 6 and 13 CMC cars at our races. We paddock together, work on each others cars, and all live close enough that we get together outside of racing pretty regularly......and the ball bustin is brutal!

So, if say one of the the Texas region guys were to move to Ohio in the next
couple months, where might he connect with some of the Great Lakes CMC guys?

[t500hps]

So, if say one of the the Texas region guys were to move to Ohio in the next
couple months, where might he connect with some of the Great Lakes CMC guys?

I don't know.....I run Mid Atlantic and am in VA. (I did race at Mid-Ohio once and also ran against a group from GL that came to Nationals at Watkins Glen 2016)

[MikeP99Z]

I burn a new set of RRs in a weekend. 5 or 6 heat cycles max, after that, they aren't competitive. Usable for practice for heat cycles 7-10.

[Sook]

There's an R888R out now. 100 treadwear at ~6/32" tread depth (RR is 4/32" RA is 8/32"). I wonder if a higher treadwear tire will be more consistent across heat cycles?

Toyo/Nitto have a bunch of tires with varying tread depths in the 100 treadwear range, R888R, R888, RA1, and NT01. There's also an RS1 full slick, however it's non-DOT.

https://www.toyotires.com/tires/competition-tires

- Josh

[ShadowBolt]

I burn a new set of RRs in a weekend. 5 or 6 heat cycles max, after that, they aren't competitive. Usable for practice for heat cycles 7-10.

So what is the real deal? Gone after 5 or 6 heat cycles or still competitive at 20 heat cycles? It can't be both.


JJ

[petel]

So, if say one of the the Texas region guys were to move to Ohio in the next
couple months, where might he connect with some of the Great Lakes CMC guys?

One way is for him to come out to Mid-Ohio for one of the three races (April, May and August) there this year and hang with the group. He could also contact the regional director Bob Denton. His contact info is in the back of the CMC rule book.

Where in Ohio would this guy be moving to? We have a couple of racers in the north east ohio area.

[BryanL]

Spec Corvette is running a Falken street tire with a 200 treadwear rating. Those cars have to weigh 3,200 post race with driver at have around 320 rwhp.

http://www.falkentire.com/tires/pass...is-rt615k-tire