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#16
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Chike,
Looked back at your original post and the fact that you're running tires with a treadwear rating of 200 explains a lot -- they are pretty "sticky" for street tires! Looks like SCCA is actually going to raise the treadwear requirement on their "street tire" class to 140 (or is it 160?) for next year. The Azenis that most folks are running this year have a treadwear rating of 120. If I remember right, the Yokohama ES100s I'm running on the street have a rating of 300 - not exactly as sticky as my race Hoosiers with their rating of 40 -Bill
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Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker |
#17
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Actually, I think the original Azenis were 180 (which translates into about 10k). Granted I think Chike has single A traction and temp ratings rather than the double A that most race and ultra high performance tires have but it still is much more than the OEM tire by far.
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British vehicles are my last ditch attempt to keep the nasty Italian thoughts in my mind at bay. So far its working. |
#18
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However, the treadwear rating of 200 does explain a good deal as to why my car sticks to the road like glue when the g-loads climb. I really love the Dunlop SP Sport 8000's and I can get them for pretty cheap as they're the previous model from Dunlop in their line of max performance summer tires (current model is the SP Sport 9000). The tirerack actually rates the 8000's higher than the newer 9000's... http://www.tirerack.com/tires/tests/sp9000_rd.jsp -Chike
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#19
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Mychailo can make custom springs which won't lower the ride height, and stiffen up the spring rates. I can wait to install them when I get the extra money this Xmas! -Chike P.S. To answer your other question - if money isn't a factor, the best wet/dry tire out there IMHO is the Bridgestone Potenza S-03 pole position. They cost just a hair over $200 each but grip like no other in the wet or dry!
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#20
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As for lowering. No messing up geometrics so long as you do it right. You can actually use it to your advantage with camber that Subies shouldn't have!
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British vehicles are my last ditch attempt to keep the nasty Italian thoughts in my mind at bay. So far its working. |
#21
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You going to shave down (5/32) a set of 615s? -Bill
__________________
Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker |
#22
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__________________
British vehicles are my last ditch attempt to keep the nasty Italian thoughts in my mind at bay. So far its working. |
#23
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#24
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Each manufacture rates their own BUT they must put a rating on it. Hence Bridgestone may say blank tire has a rating of 400 for a 40k tire where Dunlop might rate theirs at 380 for a 50k tire. In other words they don't mean much except for generalization. Of course SVXride's Hoosiers with a 40 rating aren't gonna live as long as a 400 rated tire from anybody. The traction and temp ratings though to my knowledge are universal.
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British vehicles are my last ditch attempt to keep the nasty Italian thoughts in my mind at bay. So far its working. |
#25
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So Kumho is just being very generous in estimating the life expectancy of my rubber...
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#26
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__________________
British vehicles are my last ditch attempt to keep the nasty Italian thoughts in my mind at bay. So far its working. |
#27
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These tires were a compromise, anyhow. They're quieter, wear better, and handle the rain better than the super-sticky Yokohamas I did have. And they were about $100 cheaper [each] than the BF Goodrich KDW 2s that I'd been considering. I'm not racing anytime soon, so I'm quite happy to emphasize the "touring" bits of the car.
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#28
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I'm wondering if the traction and temp ratings are relative as well??? In the Tirerack test I linked higher-up on this page: http://www.tirerack.com/tires/tests/sp9000_rd.jsp They compare the new Dunlop SP Sport 9000's to the previous SP Sport 8000's. The new 9000's have a treadwear of 280 and double 'AA' rating for traction - while the 8000's have a treadwear of 200 and a single 'A' rating for traction. In their testing, the 8000's got better ratings in every handling/braking test they did, with the 9000's only shining in road comfort/noise level... They also noted about the 8000's: "We have recommended the SP Sport 8000 for drivers who have the need of a dual purpose street and driver's school track tire. While it can't match the lap times of today's DOT-Legal competition tires, it provides a lot of performance and durability." I find it hard to believe that the SP Sport 8000 would get their recommendation as a good street/track tire, if the single 'A' rating for traction & temp caused the tires to be cooked after a few hot laps on a summer day??? -Chike
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#29
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To my knowledge they are based on Gov't standards. What those standard are I don't know. Typically a AA tire will overheat heat up as fast but then each manufacture uses different compounds (like an autox and road racing compound for instance). As for the 8000 being a better tire. That may be. Look at the Yoko A540 vs the 550. The A540 is a much better tire then the 550 ever could be. It was also about a 1/3 pricier. Just because one is a replacement doesn't make it better. Just different and if it corner's a market or gets enough sales from the previous tire then the bean counters are happy. Personally, I don't see the need for a AA tire for the street in most cases but its like faulting someone from buying top of the line Michelin's for $200 when they could've put 3 Sumitomo's on for that price. As for cooking tires. I'll cook anyone's tires in a lap or two on a warm day. Just give me the chance!!!
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British vehicles are my last ditch attempt to keep the nasty Italian thoughts in my mind at bay. So far its working. |
#30
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I have the 8000s on stock rims and would buy them again. Flip side not much experience in the wet, I'm in California
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