wd6681 Posted March 26, 2021 Report Share Posted March 26, 2021 (edited) Anyone run them yet? Edited March 26, 2021 by wd6681 Typo Quote Link to comment Share on other sites More sharing options...
Indysupra Posted March 27, 2021 Report Share Posted March 27, 2021 I know of a cayman in wrl running them. Quote Link to comment Share on other sites More sharing options...
Grant Posted March 27, 2021 Report Share Posted March 27, 2021 I have a set coming. Quote Link to comment Share on other sites More sharing options...
MoparBoyy Posted March 29, 2021 Report Share Posted March 29, 2021 great if you run the ACR version on a viper, for short periods of time, the compounds are not the same on the other sizes. A focus team ran them who was pitted next to us, they just complained the whole race how bad the tires were. 1 Quote Link to comment Share on other sites More sharing options...
wd6681 Posted March 30, 2021 Author Report Share Posted March 30, 2021 10 hours ago, MoparBoyy said: great if you run the ACR version on a viper, for short periods of time, the compounds are not the same on the other sizes. A focus team ran them who was pitted next to us, they just complained the whole race how bad the tires were. Are referring to the v720 as there is not an acr version of the v730. I am also assuming there is a difference between the v720 and v730 1 Quote Link to comment Share on other sites More sharing options...
mender Posted January 8, 2022 Report Share Posted January 8, 2022 Any updates? Quote Link to comment Share on other sites More sharing options...
wd6681 Posted January 8, 2022 Author Report Share Posted January 8, 2022 I have run 205/50r15 on a Miata. Long wearing and quick. I would say slightly faster than rs4 and slightly faster wearing. Much closer to an rs4 than a052. Sorry no data against rs4 as I have never run them on this car. 1 Quote Link to comment Share on other sites More sharing options...
mender Posted January 8, 2022 Report Share Posted January 8, 2022 Any issues? The V720 was said to chunk. Quote Link to comment Share on other sites More sharing options...
Grant Posted January 8, 2022 Report Share Posted January 8, 2022 (edited) We didn't find them to be any faster than Cooper RS3-Rs, but they were much more temperature sensitive. Wear was oddly good for a tire that almost always set its fastest lap when cold (for a Florida summer). Edited January 8, 2022 by Grant Quote Link to comment Share on other sites More sharing options...
wvumtnbkr Posted January 8, 2022 Report Share Posted January 8, 2022 Did you think they were faster than rs4? Quote Link to comment Share on other sites More sharing options...
wd6681 Posted January 9, 2022 Author Report Share Posted January 9, 2022 9 hours ago, mender said: Any issues? The V720 was said to chunk. No, very robust. At least on a lightweight Miata. But they do have that 'dont want to see the Tires after this driving'. Then you look at them and they look the same as when you got in the car... About their temperature sensitivity, we need to collect more data on them but I do feel they are pressure sensitive so your temps could be bringing them out of their pressure sweet spot. Doesn't seem to effect the laptimes as much as the balance. On a relatively loose Miata they were front limited when the pressures were a touch too high. I would suggest a hot pressure of around 32 psi. That is a 205/50r15 on a 15x8. Oh and a note on that, they are NARROW at least in a 205/50r15. They are the only tire I have run where when they fall on their side you hear the metal of the wheel hit the ground. I have come to believe that there is no free lunch with tires but these are definitely fast enough and inexpensive enough. Quote Link to comment Share on other sites More sharing options...
Grant Posted January 9, 2022 Report Share Posted January 9, 2022 8 hours ago, wvumtnbkr said: Did you think they were faster than rs4? Peak lap times yes. They make a bit more grip. Over an entire stint? Not sure. Since we didn't see any improvement with them over the Coopers we never felt the need to test their endurance (for us the Coopers stay consistent for an entire weekend). 2 1 Quote Link to comment Share on other sites More sharing options...
veris Posted September 19, 2022 Report Share Posted September 19, 2022 (edited) I ran the v730s recently. They have similar pace to the Cooper RS3-Rs, but had better wear on my heavy FWD Sedan. 2900 to 3000lbs fully fueled with driver. ~1 to 1.3s a lap faster than RS4s over 90s lap. Most cars should get 8-10 hours our of a pair. RS4s last 16 to 24 hours for me. Ran 275-35-18s on the fronts. They fit narrow and like less tire pressure than RS4s. They take a while to warm up. About 15 minutes on a cold track (10c/50f) - first thing in the morning. They are among the least expensive tires on the market now. Excluding warm up period my fast laps were sprinkled through the 2hr stint. Online other folks, mentioned v730s being good for camber limited cars. I had more outside wear than I would like. I was running about 2.3 degrees negative camber. Plan to add another half degree before my next race. Grip increase was significant enough over RS4s that I had to relearn a few corners as I was over turning and having to correct mid corner. The 285-35-18 Coopers RS3-Rs I ran lasted about 5 hours; 4 hours with decent grip. The 275 V730s had a peak lap time .080s faster than the 285 R3Rs in "my car." I plan to run the v730s again. Would prefer if they had a larger size. 285 or even 295 on 18s. Edited September 20, 2022 by veris 2 1 Quote Link to comment Share on other sites More sharing options...
TimS Posted September 20, 2022 Report Share Posted September 20, 2022 We used a set at Daytona this year. Rained quite a bit but grip felt much better in all conditions compared to Hankooks we had been running. I would consider wear acceptable but not nearly as long wearing as Hankooks. Can’t compare lap times as was our first race at Daytona. Will use again 1 Quote Link to comment Share on other sites More sharing options...
veris Posted September 20, 2022 Report Share Posted September 20, 2022 I'm surprised they were better than RS4s in the rain. The tread pattern looks very aggressive. Glad to hear that. Thanks Tim. 1 Quote Link to comment Share on other sites More sharing options...
TimS Posted September 20, 2022 Report Share Posted September 20, 2022 (edited) We ran Sebring a couple years ago in the pouring rain on a new set of RS4s. I didn’t feel they were good at all in the rain. Our little E30 doesn’t have much power(150 at the wheels) and you had to take it easy accelerating or around you went. The 730s were easier to drive in the rain for sure. Edited September 20, 2022 by TimS Quote Link to comment Share on other sites More sharing options...
wvumtnbkr Posted September 20, 2022 Report Share Posted September 20, 2022 Good to know. Rs4 can put up decent laptimes in the wet, but you don't need seatbelts to do it. Your butt will be eating the seat in such a way that belts would be redundant... 1 1 Quote Link to comment Share on other sites More sharing options...
mender Posted September 21, 2022 Report Share Posted September 21, 2022 I was driving around cars with RE-71Rs with my R-S4s in the rain but then again the car is FWD and I'm an old ice racer... And it was pouring rain, not just a damp track. My dry times were about 1:34s and about 1:45s in the worst of the downpour. 2 Quote Link to comment Share on other sites More sharing options...
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