Tire Hierarchy chat
#221
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It is only sold in Japan and Australia. And there is no 245 option that I have seen - in 15", available sizes are 195/50, 205/50, 215/50 or 225/50.
#223
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Rules are meant to be broken. (except the SM rule.) Most 205s will be slightly faster on a 9" wheel, but the difference would be hard to measure. The 205/50 SM6/R6 is definitely faster on a 9" wheel and the difference is easy to measure.
Assumptions: 2 minute road course, 2-3 miles in length, the NT-01 will do a lap in 2 minutes
Assuming all tires in a 205/50 where applicable
Fast
Hoosier R75 (call the chiropractor)
Hoosier R80 (jesus christ)
Hoosier R100 (more)
BFG R1S (a lot)
Hoosier A6 (-4.0-4.5 depending on weather)
BFG R1
Hoosier SM6/R6 (-3.5)
Hankook C71 (-2.5)
Toyo RR (-2.5)
Continental Grand-Am slick (225/45) (-1)
Nitto NT-01 (0)
BFG Rivals (+0.5 or less)
Hankook Ventus R-S3 (+1 or less)
Toyo R1R (195/50) (+1.5)
Dunlop Direzza ZII
Dunlop Direzza Star Specs Z1
Falken Azenis RT-615
Slow
Assumptions: 2 minute road course, 2-3 miles in length, the NT-01 will do a lap in 2 minutes
Assuming all tires in a 205/50 where applicable
Fast
Hoosier R75 (call the chiropractor)
Hoosier R80 (jesus christ)
Hoosier R100 (more)
BFG R1S (a lot)
Hoosier A6 (-4.0-4.5 depending on weather)
BFG R1
Hoosier SM6/R6 (-3.5)
Hankook C71 (-2.5)
Toyo RR (-2.5)
Continental Grand-Am slick (225/45) (-1)
Nitto NT-01 (0)
BFG Rivals (+0.5 or less)
Hankook Ventus R-S3 (+1 or less)
Toyo R1R (195/50) (+1.5)
Dunlop Direzza ZII
Dunlop Direzza Star Specs Z1
Falken Azenis RT-615
Slow
#229
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Came just 5 thousandths of a second off of a TTE record today (previous PTE/TTE prepped miata, also regional directors record ) on a 23 heat cycle 205 maxxis rc1 with a warped front brake rotor vibrating like hell. Rest of the field was also on rc-1s, closest competitor was almost .9 behind on nearly sticker tires.
Im so mixed on this tire. Really wish I would've fixed the rotor. Really wish I would've had a RR or Hoosier on. Really wish I had Xidas.
Last session of the day too.
Im so mixed on this tire. Really wish I would've fixed the rotor. Really wish I would've had a RR or Hoosier on. Really wish I had Xidas.
Last session of the day too.
#230
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Came just 5 thousandths of a second off of a TTE record today (previous PTE/TTE prepped miata, also regional directors record ) on a 23 heat cycle 205 maxxis rc1 with a warped front brake rotor vibrating like hell. Rest of the field was also on rc-1s, closest competitor was almost .9 behind on nearly sticker tires.
Im so mixed on this tire. Really wish I would've fixed the rotor. Really wish I would've had a RR or Hoosier on. Really wish I had Xidas.
Last session of the day too.
Im so mixed on this tire. Really wish I would've fixed the rotor. Really wish I would've had a RR or Hoosier on. Really wish I had Xidas.
Last session of the day too.
Last edited by Arca_ex; 12-06-2015 at 03:30 AM.
#233
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eh, SM wasn't too far off. It was a spring mountain miata series car (guessing someone saw SM somewhere and thought it was a spec miata?), but with all the mods done, it fell into E territory.
ill be getting that record someday. haven't been to that track since I had the speed6. I know where I left time out there too. ps: lap timers are glorious. that helped a lot.
ill be getting that record someday. haven't been to that track since I had the speed6. I know where I left time out there too. ps: lap timers are glorious. that helped a lot.
#234
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Bumping this with a question for the tire gods. I've been running CSP in auto-x this year on rival-s. They have been great but are starting to show their age. I was driving them to and from events until just recently and they really feel like they have lost some stick and are near the wear bars after about 90 runs so I exploring tire options. I don't need the speed Hoosiers can bring since I am still slow and they are nearly twice as expensive as the rivals. I intend on running HPDE events starting soon and I would rather not have my tires only last one weekend. As I can now trailer my tires, and CSP allows slicks, what tire would the tire gods recommend that has similar grip to the Rival S, but will last longer when driven in anger? Treadwear rating and street/slick doesn't matter. Looks like the 245 maxxis VR1 is slower than the 225 rivals based on grassroots testing though if I could get a hundred auto-x runs and a couple HPDEs out of them I could be convinced. You say the Toyo RR is as fast as the rival and last longer, but will it handle the many heat cycles of auto-x ok?
As a side note, it's pretty fucked up when a tire with a treadwear rating of 40 lasts twice as long as one with a 200. Just goes to show you how useful that test is for evaluating motorsports tire longevity.
As a side note, it's pretty fucked up when a tire with a treadwear rating of 40 lasts twice as long as one with a 200. Just goes to show you how useful that test is for evaluating motorsports tire longevity.
#235
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As quantifiable, real-world evidence, personal anecdotes are not worth much. That being said, the one time I had FTD at a local autocross was also the only time I ran Toyo RR's at autocross. The LF/RR pair was showing cords at the outer shoulders and they had 6 HPDE days on them (about 600 track miles) at that point, so they were far from fresh. I went from Gen 1 Rival to the RR's, and there was absolutely much more grip in autocross, but that comparison doesn't help you much.
I would say give them a shot. Recognize that they are directional, and will need to be rotated LF/RR RF/LR on a RWD car, and your wheel mounting guy needs to mount them appropriately.
Times are very much dependent on the autocross. A local friend, Oregonmon, was very close to FTD at the last autocross, on Rival S's. FTD was a prepped Cayman GTS on Hoosiers. Our local autocrosses with the Porsche Club mostly favor miatas, as they are small tight courses that greatly reward grip and that don't allow horsepower an overwhelming advantage. There is still an enormous feeling of pride when a <10k car is chasing down a >100k car, though.
I would say give them a shot. Recognize that they are directional, and will need to be rotated LF/RR RF/LR on a RWD car, and your wheel mounting guy needs to mount them appropriately.
Times are very much dependent on the autocross. A local friend, Oregonmon, was very close to FTD at the last autocross, on Rival S's. FTD was a prepped Cayman GTS on Hoosiers. Our local autocrosses with the Porsche Club mostly favor miatas, as they are small tight courses that greatly reward grip and that don't allow horsepower an overwhelming advantage. There is still an enormous feeling of pride when a <10k car is chasing down a >100k car, though.
#237
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Right, with the rival-s you can get a full seasons worth of auto-x runs before you can take them off and sell them to somebody to stance with, but previous posts have indicated only 2 hours on the road course before they are toast. That's only one weekend (2 HPDE days) and that's really tough to swallow.