Indysupra Posted March 21, 2021 Report Share Posted March 21, 2021 (edited) Who all that attended NCM felt that the tire wear was abnormal? I spoke with a few teams that felt the same way. Edited March 21, 2021 by Indysupra Quote Link to comment Share on other sites More sharing options...
wvumtnbkr Posted March 22, 2021 Report Share Posted March 22, 2021 (edited) We ran a set of rs4 that we ran at barber 'll weekend. Still good for a track day! In other words, our tire wear was great! Edited March 22, 2021 by wvumtnbkr 1 Quote Link to comment Share on other sites More sharing options...
craig71188 Posted March 22, 2021 Report Share Posted March 22, 2021 We were using up some old, multiple heat cycled RS4's. Took a bit of abuse due to a few issues - they held up just fine. Wear seemed about what we normally see on a weekend. Quote Link to comment Share on other sites More sharing options...
Team Infiniti Posted March 22, 2021 Report Share Posted March 22, 2021 14 hours ago, Indysupra said: Who all that attended NCM felt that the tire wear was abnormal? I spoke with a few teams that felt the same way. What tire did you run? Quote Link to comment Share on other sites More sharing options...
Rodger Coan-Burningham Posted March 22, 2021 Report Share Posted March 22, 2021 I did not attend this weekend but have driven quite a few laps there. Normally that track is quite easy on tires. Quote Link to comment Share on other sites More sharing options...
Members MR2 Biohazard Posted March 22, 2021 Members Report Share Posted March 22, 2021 13 hours ago, wvumtnbkr said: We ran a set of rs4 that we ran at barber 'll weekend. Still good for a track day! In other words, our tire wear was great! But you could say that an any track with RS4, except for Calabogie. The good old RS4. 2 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted March 22, 2021 Author Report Share Posted March 22, 2021 We ran a soft tire. I didn’t think anything if it until other teams made the comments about the tire wear was worse than other tracks. We made a lot of changes to our car since barber and not sure if our increased wear is due to the track or the changes. Quote Link to comment Share on other sites More sharing options...
wvumtnbkr Posted March 23, 2021 Report Share Posted March 23, 2021 11 hours ago, MR2 Biohazard said: But you could say that an any track with RS4, except for Calabogie. The good old RS4. You're right. However, my point stands that our tires didn't wear any different here than most "normal" tracks were we run rs4. 1 Quote Link to comment Share on other sites More sharing options...
mickindy14 Posted March 23, 2021 Report Share Posted March 23, 2021 (edited) Same old story every year around this time! Tirerack did not have any 225/45-15 RS4 in stock. We run these tires because they wear like iron. We rolled the dice and tried some Nexen brand tires which were on sale, and had a great review from Tirerack. Wow bad decision, bald after 6 hours on Saturday. Luckily we had some used RS4's we ran at COTA. After 16 hours at COTA, 2 hours on Saturday and 7 hours on Sunday, our lap times were just 2 seconds off the new Nexens, on a seriously used set of Hankook tires. I know 2 seconds is a lot but we do not have a budget which allows for multiple sets of tires for a weekend. If we had new Hankooks available we may have been on parody with the Nexens. PS: 2300 pound NB Miata so not a heavy car. Give me Hankooks or give me death. Edited March 23, 2021 by mickindy14 Quote Link to comment Share on other sites More sharing options...
turbogrill Posted March 23, 2021 Report Share Posted March 23, 2021 47 minutes ago, mickindy14 said: Same old story every year around this time! Tirerack did not have any 225/45-15 RS4 in stock. We run these tires because they wear like iron. We rolled the dice and tried some Nexen brand tires which were on sale, and had a great review from Tirerack. Wow bad decision, bald after 6 hours on Saturday. Luckily we had some used RS4's we ran at COTA. After 16 hours at COTA, 2 hours on Saturday and 7 hours on Sunday, our lap times were just 2 seconds off the new Nexens, on a seriously used set of Hankook tires. I know 2 seconds is a lot but we do not have a budget which allows for multiple sets of tires for a weekend. If we had new Hankooks available we may have been on parody with the Nexens. PS: 2300 pound NB Miata so not a heavy car. Give me Hankooks or give me death. Try directly with https://hankookmotorsports.com/products/rs4-tires?variant=37890594832551 Some times they have it when tirerack doesn't Quote Link to comment Share on other sites More sharing options...
tyler_j Posted March 23, 2021 Report Share Posted March 23, 2021 Came here for the tire abuse pics, was sorely disappointed. Not a single photo of some cords trying to get some daylight. Left side tires mainly? Quote Link to comment Share on other sites More sharing options...
MJNOVA Posted March 23, 2021 Report Share Posted March 23, 2021 Cooper Tires on MKD Motorsports Cobra 7 hours---both right and left failed within 30 seconds of each other. 1 1 1 Quote Link to comment Share on other sites More sharing options...
Team Infiniti Posted March 23, 2021 Report Share Posted March 23, 2021 10 minutes ago, MJNOVA said: MKD Motorsports Cobra What tire did you move from? Quote Link to comment Share on other sites More sharing options...
MJNOVA Posted March 23, 2021 Report Share Posted March 23, 2021 RS4s which wear like iron for us. We felt we needed some more grip for a track that we knew our car would only be OK at. Waited one to many laps for a yellow to come out... Quote Link to comment Share on other sites More sharing options...
frankrehnelt Posted March 23, 2021 Report Share Posted March 23, 2021 (edited) We tried re71s on Friday and we were alarmed by the wear so we ran rs4s for the race. No problems Edited March 23, 2021 by frankrehnelt Grammar Quote Link to comment Share on other sites More sharing options...
scottyk Posted March 23, 2021 Report Share Posted March 23, 2021 1 hour ago, MJNOVA said: Cooper Tires on MKD Motorsports Cobra 7 hours---both right and left failed within 30 seconds of each other. What was psi, suspension set up? 1 Quote Link to comment Share on other sites More sharing options...
mhr650 Posted March 23, 2021 Report Share Posted March 23, 2021 1 hour ago, MJNOVA said: Cooper Tires on MKD Motorsports Cobra 7 hours---both right and left failed within 30 seconds of each other. Interesting data point, I know a lot of teams are interested in those tires. Quote Link to comment Share on other sites More sharing options...
MJNOVA Posted March 23, 2021 Report Share Posted March 23, 2021 4 hours ago, mhr650 said: Interesting data point, I know a lot of teams are interested in those tires. They last just like RE71s in my opinion. Setup was spot on as the wear was very even. The rear tires --even the right rear was worn almost to the same point. The Mustang is very front heavy and will eat thru fronts quickly. At many tracks they might make a 8 hour --just barely. Quote Link to comment Share on other sites More sharing options...
scottyk Posted March 24, 2021 Report Share Posted March 24, 2021 55 minutes ago, MJNOVA said: They last just like RE71s in my opinion. Setup was spot on as the wear was very even. The rear tires --even the right rear was worn almost to the same point. The Mustang is very front heavy and will eat thru fronts quickly. At many tracks they might make a 8 hour --just barely. Tire wear directly mimics suspension set up. Read the tire. 1 Quote Link to comment Share on other sites More sharing options...
MJNOVA Posted March 24, 2021 Report Share Posted March 24, 2021 11 hours ago, scottyk said: Tire wear directly mimics suspension set up. Read the tire. I think we ended up at around 30psi all around. To be clear --I am not complaining about the tire. It latest as long or longer than a RE71 and it provided the additional grip we needed to go faster than the RS4s. We went a few laps to many on them. 1 Quote Link to comment Share on other sites More sharing options...
LuckyKid Posted March 25, 2021 Report Share Posted March 25, 2021 We had some really odd wear: 245/40-15 Rivals Alignment: 2.2 camber, zero toe, 5 degrees caster: front 2.5 camber, 1/8" toe in: rear *We've added camber with the move to the Rival. 900/450 Springs and Penske shocks. 2170lbs with driver and partial fuel. (~600lbs of total DF) 50/50 cross weights, Delrin bushings. 25psi cold (40degrees) 26 mid-day(55degrees) 32PSI off track. This was at NCM grand course in 45-65 degree weather partly cloudy. Obviously the extreme inside and outside wear is odd like we are running too much toe and not enough camber, or are severely underinflated. We did some pyro testing early, but it was before we really hit our pace and there were no significant concerns there. 1 Quote Link to comment Share on other sites More sharing options...
wvumtnbkr Posted March 25, 2021 Report Share Posted March 25, 2021 (edited) How the he'll did you wear out the passenger side and not the driver side? Did you use 2 sets for 1 day? Is the 25 psi and 26psi set cold, or measured hot? Edited March 25, 2021 by wvumtnbkr Quote Link to comment Share on other sites More sharing options...
LuckyKid Posted March 25, 2021 Report Share Posted March 25, 2021 42 minutes ago, wvumtnbkr said: How the he'll did you wear out the passenger side and not the driver side? Did you use 2 sets for 1 day? Is the 25 psi and 26psi set cold, or measured hot? Driver side had both tires replaced (2nd tire). Only the PAX rear was replaced but the first one wore the fastest. We had 10 tires for the two days and testing and almost all of each are done for. 32PSI hot. Quote Link to comment Share on other sites More sharing options...
Ronh911 Posted March 25, 2021 Report Share Posted March 25, 2021 Our new car had 225/45/15 RS4s with 5 race weekends on them before this race. It finished the day with those same tires in 3rd place. We would have run them on Sunday too but because our old car broke we swapped on the new 245 RS4s that were on her. We talked to a very competitive team that said they were going to use up 3 new sets of Re71 that weekend. They were 4s faster then us but we just don’t have that kind of tire budget available. 4 Quote Link to comment Share on other sites More sharing options...
Indysupra Posted March 25, 2021 Author Report Share Posted March 25, 2021 2 hours ago, LuckyKid said: We had some really odd wear: 245/40-15 Rivals Alignment: 2.2 camber, zero toe, 5 degrees caster: front 2.5 camber, 1/8" toe in: rear *We've added camber with the move to the Rival. 900/450 Springs and Penske shocks. 2170lbs with driver and partial fuel. (~600lbs of total DF) 50/50 cross weights, Delrin bushings. 25psi cold (40degrees) 26 mid-day(55degrees) 32PSI off track. This was at NCM grand course in 45-65 degree weather partly cloudy. Obviously the extreme inside and outside wear is odd like we are running too much toe and not enough camber, or are severely underinflated. We did some pyro testing early, but it was before we really hit our pace and there were no significant concerns there. We also had wear on the inside and outside. We were already running more pressure than Barber to try and help with shoulder wear. Quote Link to comment Share on other sites More sharing options...
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