Dunlop Direzza ZII
04-21-2013, 03:43 AM
#132
I recently changed my alignment after a corner balance and I'm noticing a lot more hydroplaning and instability in the rear at 60 mph+
in standing water. The camber before in the rear was 2.2 1/8th tow and I now have 2.8 1/8 tow. I think the gain in the dry is negligible compared to loss in the wet.
Before the alignment, in standing water i could full throttle without any instability.
Im thinking i might try somewhere in the middle of those two settings .
in standing water. The camber before in the rear was 2.2 1/8th tow and I now have 2.8 1/8 tow. I think the gain in the dry is negligible compared to loss in the wet.
Before the alignment, in standing water i could full throttle without any instability.
Im thinking i might try somewhere in the middle of those two settings .
04-22-2013, 06:56 AM
#133
I can't work these tires out yet but when you get them right they are fast as hell.
I usualy bleed to 36/37psi after a track session but for these I'm going to 35psi
for autocross I migth start around 35psi and bleed each corner to 37psi as they come up
These tires will go to 40+psi in 2 runs? And they seem to come on halfway thru the first run
I'm a little concerned our chumpcar won't be able to keep these tires from overheating or last a race like the old ones
I usualy bleed to 36/37psi after a track session but for these I'm going to 35psi
for autocross I migth start around 35psi and bleed each corner to 37psi as they come up
These tires will go to 40+psi in 2 runs? And they seem to come on halfway thru the first run
I'm a little concerned our chumpcar won't be able to keep these tires from overheating or last a race like the old ones
04-22-2013, 07:45 AM
#134
Join Date: Jun 2008
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Originally Posted by praisedprod' timestamp='1366399173' post='22485721
I recently changed my alignment after a corner balance and I'm noticing a lot more hydroplaning and instability in the rear at 60 mph+
in standing water. The camber before in the rear was 2.2 1/8th tow and I now have 2.8 1/8 tow. I think the gain in the dry is negligible compared to loss in the wet.
Before the alignment, in standing water i could full throttle without any instability.
Im thinking i might try somewhere in the middle of those two settings .
in standing water. The camber before in the rear was 2.2 1/8th tow and I now have 2.8 1/8 tow. I think the gain in the dry is negligible compared to loss in the wet.
Before the alignment, in standing water i could full throttle without any instability.
Im thinking i might try somewhere in the middle of those two settings .
04-22-2013, 07:50 AM
#135
Join Date: Jun 2008
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Well I wouldn't, just using that as example. I prefer the feel of these with less camber I think. They were better than my z1 in the wet till I increased the camber
04-22-2013, 09:07 AM
#136
Anybody done pyrometer testing to see what temperature levels these tires fall off? We've been plagued by cold so it's hard to really tell but it seems like around 100 degrees or so with a probe they start getting greasier mid-run. I'm very worried about prosolos in the heat and the tires being useless 3rd and 4th run.
Again we've had very limited experience being able to get the tires up to those temperatures so I'm curious what the experience of people in warmer climates has been.
I will say the tires feel great at pretty cool 80-90 degree temperatures. Still not sure they're better than Z1's, but at least I don't think they're worse overall.
Again we've had very limited experience being able to get the tires up to those temperatures so I'm curious what the experience of people in warmer climates has been.
I will say the tires feel great at pretty cool 80-90 degree temperatures. Still not sure they're better than Z1's, but at least I don't think they're worse overall.
05-31-2013, 06:05 PM
#137
well i just joined the band wagon. i got a set of 245 f and 255 rear running in RTR. should i inflate the fronts more to keep the integrity of the side walls since they are being pinched or should i just run even pressures? please help a noob. thank you.
05-31-2013, 10:00 PM
#138
Anybody done pyrometer testing to see what temperature levels these tires fall off? We've been plagued by cold so it's hard to really tell but it seems like around 100 degrees or so with a probe they start getting greasier mid-run. I'm very worried about prosolos in the heat and the tires being useless 3rd and 4th run.
Again we've had very limited experience being able to get the tires up to those temperatures so I'm curious what the experience of people in warmer climates has been.
I will say the tires feel great at pretty cool 80-90 degree temperatures. Still not sure they're better than Z1's, but at least I don't think they're worse overall.
Again we've had very limited experience being able to get the tires up to those temperatures so I'm curious what the experience of people in warmer climates has been.
I will say the tires feel great at pretty cool 80-90 degree temperatures. Still not sure they're better than Z1's, but at least I don't think they're worse overall.
06-09-2013, 03:32 PM
#139
so today was my first day out with them, and i love these! after 7 runs the heat got to them and they got slimey. other wise running the 245 255 combo in RTR set up felt great. ill start bringing a pyro meter with me as well to keep track of where they fall off, but the inconsistencies might be because of the green horn driver.
06-10-2013, 07:32 AM
#140
Originally Posted by IntegraR0064' timestamp='1366650479' post='22490511
Anybody done pyrometer testing to see what temperature levels these tires fall off? We've been plagued by cold so it's hard to really tell but it seems like around 100 degrees or so with a probe they start getting greasier mid-run. I'm very worried about prosolos in the heat and the tires being useless 3rd and 4th run.
Again we've had very limited experience being able to get the tires up to those temperatures so I'm curious what the experience of people in warmer climates has been.
I will say the tires feel great at pretty cool 80-90 degree temperatures. Still not sure they're better than Z1's, but at least I don't think they're worse overall.
Again we've had very limited experience being able to get the tires up to those temperatures so I'm curious what the experience of people in warmer climates has been.
I will say the tires feel great at pretty cool 80-90 degree temperatures. Still not sure they're better than Z1's, but at least I don't think they're worse overall.