Kumho vs. Hoosier on 8" Wheels
Looks like from the National Solo results in B and C-Stock with the V710s on top I should be able to pick up a set of used A6s pretty cheaply, huh? :scratchhe
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I believe we have a set of 285's for sale...
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Originally Posted by John V
I believe we have a set of 285's for sale...
Thanks, Barry |
Originally Posted by 4D-Sport
Any idea what a fair price would be?
Thanks, Barry Price? We'll probably be pretty easy ;) |
As bad as I was, I believe that I was faster on the 285's than the 245 v710s. If it weren't for coning on day 2, my nationals finish would have been almost respectable. So, I would be interested in your 285's if Barry doesn't want them.
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Originally Posted by Cito
As bad as I was, I was faster on the 285's than the 245 v710s. If it weren't for coning on day 2, my nationals finish would have been almost respectable. So, I would be interested in your 285's if Barry doesn't want them.
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c'mon Jason...'mo tire is 'mo better, right? :hahano:
I really thought the A6 compound was going to be better at HPT, but I'm starting to realize the more I think I know about this autocross stuff, the less I actually know...if you follow my reasoning. I'll start running my RX8 on the 245 Kumho and see where it leads... |
Jason,
That was poorly worded on my part. I should have written, "I believe I was faster." My times relative to known quantities were much better at Nationals, well at least raw times. They still sucked, but less so. I should strike my earlier comment given that my opinion regarding these matters really should hold little if any water and the comment was not based on data. The results speak for themselves, and your success has proven the goodness of the Kumhos. I have had multiple sets of Kumho V710's, and they are fast and wear amazingly. At Topeka, they also probably warmed up more quickly. When I buy new in the future, it will be Kumhos, but I really like the Hoosiers in 285's, and if I can get in on a cheap set that'd be cool. Congratulations on your repeat in BS. You were amazing both days, and I only wish I would have been able to see your runs. |
I ran on the 245 Hoosiers for the first time at Natls. My times for the runs in which I didn't choke were pretty much in the range of where I normally run relative to Jason at our local events on my 710s. Given that the 710s supposedly last longer, I'd probably stick with them.
You were amazing both days, and I only wish I would have been able to see your runs. |
Originally Posted by Cito
As bad as I was, I believe that I was faster on the 285's than the 245 v710s. If it weren't for coning on day 2, my nationals finish would have been almost respectable. So, I would be interested in your 285's if Barry doesn't want them.
I can't pass up Jason offer on one of his eight sets of (winning) :rock: V710s. Icing on the cake, he's on the Left Coast too so shipping is better. :angel: |
hey jason got another set you could send my way?
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Originally Posted by Cito
Jason,
Congratulations on your repeat in BS. You were amazing both days, and I only wish I would have been able to see your runs. |
Originally Posted by mwood
c'mon Jason...'mo tire is 'mo better, right? :hahano:
I really thought the A6 compound was going to be better at HPT, but I'm starting to realize the more I think I know about this autocross stuff, the less I actually know...if you follow my reasoning. I'll start running my RX8 on the 245 Kumho and see where it leads... |
The A6 definitely accelerated and braked harder than the V710s on DC's surface, which is admittedly nothing like HPTs but it wasn't because they were 285's, the construction of the tire just seems to have more longitudinal grip. The 285 was something we just wanted to try out. Obviously we had our reasons to run the 245 Kumho at HPT, and the Boxster will be on Kumhos next year.
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Has anyone back-to-back tested the 245 Hoosier and the 245 Kumho on asphalt?
I can't imagine they are close to the bang for the buck of the 710, but am curious as to how they compare, given that the RX8 is an application where the sizes are the "same" in both brands... |
Originally Posted by mwood
Has anyone back-to-back tested the 245 Hoosier and the 245 Kumho on asphalt?
I can't imagine they are close to the bang for the buck of the 710, but am curious as to how they compare, given that the RX8 is an application where the sizes are the "same" in both brands... |
I ran the Hoosier 245s for most of last year. My opinion is that the Kumhos & Hoosiers
are even. Your driving style will determine which one is better for you. YMMV. :) |
I know that Mark Allen ran the 245 A6 this past year.
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Originally Posted by fastmike
We tried it on the Solstice. Get the Kumho.
FM Not only saves me the extra $$ of the Hoosiers, but also saves me the hassle of changing stickers on the car and trailer ;) |
wish the 710's had a 245/40/17 size available. I dont like the tall 45 sidewall they have with that size.
olddragger |
I still say the 225/40-18 Hoosier A6 will be better than the 245/35 A6
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Anyone know what size Hoosiers the T3 cars were running at HPT?
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Originally Posted by Sparky
Anyone know what size Hoosiers the T3 cars were running at HPT?
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Originally Posted by ULLLOSE
The Rodert Davis Racing cars, top two, were on 245-40-17 Hoosiers. I am 99% sure they were on A6s as were many of the top SS/T cars due to the cold temps.
"Any wheel not exceeding the specified diameter and rim width on the vehicle’s specification line may be used" That's a pretty liberal allowance, but certainly helps control tire costs. |
Originally Posted by Sparky
Thanks, I started to ask how the heck they're allowed to run 17" rims, then checked the rules and found this one new this year under Touring:
"Any wheel not exceeding the specified diameter and rim width on the vehicle’s specification line may be used" That's a pretty liberal allowance, but certainly helps control tire costs. |
Originally Posted by ULLLOSE
Not new, been in touring as long as the C5 has
I knew about the 20mm tire allowance, that's why I asked the question. But since they're on 17" rims it doesn't really bring anything to the discussion. |
the 17's with the 40 sidewall really give you some grunt coming out of a corner.
OD |
Originally Posted by olddragger
the 17's with the 40 sidewall really give you some grunt coming out of a corner.
OD Tire Size Sidewall Diameter Circumference Rev/Mile Difference 225/45-18 4.0 in. 25.97 in. 81.59 in. 777 0.0% Stock OE 245/35-18 3.4 in. 24.75 in. 77.76 in. 815 -4.7% 245/40-17 3.9 in. 24.72 in. 77.65 in. 816 -4.8% No idea why they went that way.... Could be cost as they are a four car team. :dunno: As far as weight the 245-40-17 Hoosier weighs 22 lbs and the 245-35-18 is 21 lbs. So I don't see a weight savings unless they can get a 17" wheel that weighs less than my 16.3 lbs 18X8 SSR comp. Only good reason I can come up with is cost. |
Very true ULLLOSE-- the 35 sidewall 18" is just a little(insignificant amount) taller than my 235/40/17. I run road tracks and I like a little more sidewall than the 35 gives. I like a little more give when I hit the rumble strips and it seems that the 35 sidewall tire pressures rise faster than 40's (less volume?). Still they are dang good tires--wish Kumho would offer more sizes. 17's are cheaper all the way around. I run the enkei rpo2 wheel 17x8 and with my current RA1 235/40's my wheel/tire weight is 40lbs. Lug nuts and all. Aint the best but it aint bad either. Especialy since i got the wheels(new) and a qualifing set of the ra1's(lot's of 17"s out there) for a total of $700. Course I am playing and Ya'll aren't and that is what makes the differance.
rotor on olddragger |
Where do you find the used RA-1's? I'm trying to find a set of 18's. I know they are harder to come by than 17's, but I'm hoping when Spring hits it won't be too difficult to find a used set for track days. They'll be going on my spare set of stock rims.
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18's can be found. Buy a copy of Grassroots Magazine and in the back there are listings for people that deal in slightly used race tires.
Good luck Olddragger |
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