RS4 vs RE71s
#11
I certainly wouldn't say the RE-71 has been consistent. Grip was crazy the first couple events, but had tread squirm. After several events, the tire is much more predictable in my opinion. I have probably 100 AutoX runs and 4000 street miles on these tires and I think I may run one more event and call them done. They have about 2/32 left at this point. Someone did recommend the RS-4 because they remained consistent over the life of the tire. Not sure what I want to do, because I got two years out of these tires and that isn't too bad for a race tire... I think I will do another set of RE-71 and wait until the next "it" tire comes out.
#12
Looks like only the Proxes RR comes in 17" 255. Have you used both? How would you compare BFG R1 (which is supposed to be the faster tire in general) in 245 width to the Proxes RR in 255?
#13
I certainly wouldn't say the RE-71 has been consistent. Grip was crazy the first couple events, but had tread squirm. After several events, the tire is much more predictable in my opinion. I have probably 100 AutoX runs and 4000 street miles on these tires and I think I may run one more event and call them done. They have about 2/32 left at this point. Someone did recommend the RS-4 because they remained consistent over the life of the tire. Not sure what I want to do, because I got two years out of these tires and that isn't too bad for a race tire... I think I will do another set of RE-71 and wait until the next "it" tire comes out.
have you thought about getting the RE71R's shaved so you don't get tread squirm when they're new and sticky?
#14
I haven't run the Proxy RR yet but i know a lot of people that adore them because they don't slow down appreciably from sticker to cord.
#15
I ran a set of R1 until they heat cycled out. Got 5 events out of them with driving back and forth. They slow down pretty substantially when heat cycled, but when new were easily another 1.5sec or so faster than RE71R.
I haven't run the Proxy RR yet but i know a lot of people that adore them because they don't slow down appreciably from sticker to cord.
I haven't run the Proxy RR yet but i know a lot of people that adore them because they don't slow down appreciably from sticker to cord.
Another related question: does anyone know how much margin for error there is between cording and catastrophic failure in these kinds of tires? I've yet to run one right down to the cords, but I do get a bit nervous running a tire that's near end of life, since a blowout would obviously be... bad. Is it possible to go from no cords showing to a blowout in a single 20-minute session? Or are you going to be ok as long as you check after each one? Obviously you can just replace them sooner to be safe, but given the cost it's nice to squeeze out as much life as possible!
#16
^Interested in this as well. I would guess a 20 minute session would be pushing it, but I would think as long as you check them and no cords showing and any tread left, you would be fine. I think I would still rather swap them at 1-2 32nds just to be safe. You would think they would have a little rubber past the tread, so the tire would be totally bald before cording. Harder to tell running a lot of camber though. I don't think I would get more than 1 or 2 more autocrosses out of the ones I have and I don't like to fiddle mid season. I want to get used to what I have and drive around the short falls(didn't work out great last year, so I did make changes but...). If you smash your car into the wall or break a wheel, maybe you aren't saving any money. lol.
#18
^Interested in this as well. I would guess a 20 minute session would be pushing it, but I would think as long as you check them and no cords showing and any tread left, you would be fine. I think I would still rather swap them at 1-2 32nds just to be safe. You would think they would have a little rubber past the tread, so the tire would be totally bald before cording. Harder to tell running a lot of camber though. I don't think I would get more than 1 or 2 more autocrosses out of the ones I have and I don't like to fiddle mid season. I want to get used to what I have and drive around the short falls(didn't work out great last year, so I did make changes but...). If you smash your car into the wall or break a wheel, maybe you aren't saving any money. lol.
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Fusiondynamics
Wheels and Tires
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02-08-2005 10:47 AM