Sumitomo HTR Z III--New 'max performance' tire?
10-26-07, 05:37 PM
#1
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Sumitomo HTR Z III--New 'max performance' tire?
According to the tire rack anyway. It recently beat out three other pretty damn good tires in a recent tire rack test, so I was at least considering it, until I saw the treadwear rating of 300. They're available in 285/30/18. Have any other high hp guys used these as street tires?
http://www.tirerack.com/tires/tests/...ay.jsp?ttid=93
http://www.tirerack.com/tires/tests/...ay.jsp?ttid=93
10-26-07, 08:39 PM
#2
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Meh, I haven't heard fantastic things about the other competitors. Definitely not the street tire I would buy from bridgestone if I had the money. But if you're not really going to compete on these tires, they should be fine I suppose.
10-29-07, 04:22 PM
#7
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Since posting this thread, I've decided I'm going to stick with top of the line tires....over the years, I've ran S02s, S03s, and BFG KDs on my R1, and (now that I'm making more power than ever) I don't think I can gamble when it comes to tire quality.
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05-26-08, 09:12 AM
#14
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i have 1000 miles on my first set of "Heaters".... it won't be long til i am ontrack w them and we will learn alot more.
i will say that last week i hooked an 80 mph turn on a 2 lane road and was totally blown away w how they stuck. no noise, no squirm (they are shaved to 6/32). i run 255s and 295s.
nephew Aaron and i will both be running these tires at the "Shootout at the O K Corral" deal we are doing this summer at BlackHawk Farms.
LS2 V Rotary... exactly similar hardware except motor. see thread in 3rd gen section.
hc
i will say that last week i hooked an 80 mph turn on a 2 lane road and was totally blown away w how they stuck. no noise, no squirm (they are shaved to 6/32). i run 255s and 295s.
nephew Aaron and i will both be running these tires at the "Shootout at the O K Corral" deal we are doing this summer at BlackHawk Farms.
LS2 V Rotary... exactly similar hardware except motor. see thread in 3rd gen section.
hc
10-17-09, 11:24 PM
#17
any updates on these? My old HTR Z II's are near the end of their life. I was thinking Toyo T1R's but they seem to be more expensive than I remember. What about HTR Z III vs Falken Azenis RT-615? The HTR Z III's seem to be cheaper than Azenis. Are you getting any value for the extra money if buying the Azenis over the Sumitomo's?
Wet traction is not an issue, the car never sees rain. It might do one HPDE a year. I mostly do back roads driving and some high horsepower pulls in the straight line. I just want something that will help keep my back end planted if I apply any boost in a turn.
Wet traction is not an issue, the car never sees rain. It might do one HPDE a year. I mostly do back roads driving and some high horsepower pulls in the straight line. I just want something that will help keep my back end planted if I apply any boost in a turn.
10-19-09, 09:38 AM
#18
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any updates on these? My old HTR Z II's are near the end of their life. I was thinking Toyo T1R's but they seem to be more expensive than I remember. What about HTR Z III vs Falken Azenis RT-615? The HTR Z III's seem to be cheaper than Azenis. Are you getting any value for the extra money if buying the Azenis over the Sumitomo's?
Wet traction is not an issue, the car never sees rain. It might do one HPDE a year. I mostly do back roads driving and some high horsepower pulls in the straight line. I just want something that will help keep my back end planted if I apply any boost in a turn.
Wet traction is not an issue, the car never sees rain. It might do one HPDE a year. I mostly do back roads driving and some high horsepower pulls in the straight line. I just want something that will help keep my back end planted if I apply any boost in a turn.
10-20-09, 12:34 PM
#19
Rich- I live near you in CT and DD for 8 to 9 months out of the year. I’ve been using them this season-switched from PS2s. The Sumos were great in the summer & ok in the rain...but I really don't care for them now that the weather has gotten cooler. Yes, they were much less expensive than my PS2s but they don't inspire nearly as much confidence in cooler weather- Bill.
10-20-09, 05:02 PM
#20
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Falken is sumitomo rubber corp's "performance" division.
If you want close to an R-COMP then the RT615 is the tire to pick.
These look more like an all season. I love my Dunlop Star specs for street tires, and don't plan on changing soon.
If you want close to an R-COMP then the RT615 is the tire to pick.
These look more like an all season. I love my Dunlop Star specs for street tires, and don't plan on changing soon.
10-20-09, 06:35 PM
#21
This is tricky. On my T2 I have some 17x7 wheels and 225/45/17 HTRz II's that were originally on my nonturbo FC a few years ago. Because the setup on my car is built more for topend power than low end torque, the traction is actually better than you would expect in a straight line. 1st gear is fine unless I give it more than 1/2 throttle and 2nd gear will hook unless it's cold out. Cornering isn't bad but I'm always afraid that if I dial in any throttle I'll end up in a ditch.
I've been told that you can't really fit 245's on 17x7's. And given the economy and my personal financial situation, especially after blowing so much money on a motor build and turbo upgrade, I can't afford wheels in the near future. But my tires on the way out. So that pretty much leaves me with 225's all the way around right?
As for the budget, well it partly depends on what I'm getting for my money. I know the Azenis Rt-615 will be a better tire, but with such a pitiful size will it be worth spending the extra money? I think we're talking about 35 or 40 more per tire, which is money I can save or spend on other things the car needs like OEM interior parts.
I've been told that you can't really fit 245's on 17x7's. And given the economy and my personal financial situation, especially after blowing so much money on a motor build and turbo upgrade, I can't afford wheels in the near future. But my tires on the way out. So that pretty much leaves me with 225's all the way around right?
As for the budget, well it partly depends on what I'm getting for my money. I know the Azenis Rt-615 will be a better tire, but with such a pitiful size will it be worth spending the extra money? I think we're talking about 35 or 40 more per tire, which is money I can save or spend on other things the car needs like OEM interior parts.
10-22-09, 01:58 AM
#22
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I wish I could give a good high HP review of the ZIII's, but the best I can say is that I have put an autox in on a set of 215/40/18 ZIII's, and they performed far better than I was expecting. However, even on my maybe ~110-120 whp FC, the rears would break free at corner exit, so I would suspect that the higher horsepower guys will have a harder time getting traction with these, even in a straight line.
Hope this helps.
10-22-09, 10:34 PM
#24
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You're in luck.... tire rack has the Hankook RS2s in the 225/45-17 size on closeout and in stock at $78 per tire.
I'd jump all over them, I have been running them on my track wheels on the street and been impressed with the level of grip.....265s out back with 400+ rwhp.
Highly recommended
I'd jump all over them, I have been running them on my track wheels on the street and been impressed with the level of grip.....265s out back with 400+ rwhp.
Highly recommended
This is tricky. On my T2 I have some 17x7 wheels and 225/45/17 HTRz II's that were originally on my nonturbo FC a few years ago. Because the setup on my car is built more for topend power than low end torque, the traction is actually better than you would expect in a straight line. 1st gear is fine unless I give it more than 1/2 throttle and 2nd gear will hook unless it's cold out. Cornering isn't bad but I'm always afraid that if I dial in any throttle I'll end up in a ditch.
I've been told that you can't really fit 245's on 17x7's. And given the economy and my personal financial situation, especially after blowing so much money on a motor build and turbo upgrade, I can't afford wheels in the near future. But my tires on the way out. So that pretty much leaves me with 225's all the way around right?
As for the budget, well it partly depends on what I'm getting for my money. I know the Azenis Rt-615 will be a better tire, but with such a pitiful size will it be worth spending the extra money? I think we're talking about 35 or 40 more per tire, which is money I can save or spend on other things the car needs like OEM interior parts.
I've been told that you can't really fit 245's on 17x7's. And given the economy and my personal financial situation, especially after blowing so much money on a motor build and turbo upgrade, I can't afford wheels in the near future. But my tires on the way out. So that pretty much leaves me with 225's all the way around right?
As for the budget, well it partly depends on what I'm getting for my money. I know the Azenis Rt-615 will be a better tire, but with such a pitiful size will it be worth spending the extra money? I think we're talking about 35 or 40 more per tire, which is money I can save or spend on other things the car needs like OEM interior parts.