Which is stickier?
10-03-2006, 01:32 AM
#2
Tech Contributor
It depends on the Goodyear COMPOUND. They make the Eagle slick from "R075" (very soft - sticky), to "R600" (comparatively hard, lasts a long time, good for enduros).
Really the only advantage of the autocrossing Hoosier compared to a Goodyear slick is that the Hoosier "comes in" very quickly. In every other aspect, the slick is a better performer.
Ed LoPresti
Really the only advantage of the autocrossing Hoosier compared to a Goodyear slick is that the Hoosier "comes in" very quickly. In every other aspect, the slick is a better performer.
Ed LoPresti
10-03-2006, 08:33 AM
#3
Drifting
Thread Starter
Thanks!. I forgot to mention these GY are R470. I am not familiar with this rating.
How does that nomenclature compare with Hoosier's UTQG tire wear of 40?
How does that nomenclature compare with Hoosier's UTQG tire wear of 40?
10-03-2006, 09:06 AM
#4
Melting Slicks
http://www.racegoodyear.com/pdf/2006...rts_radial.pdf
The 470 compound is a harder compound probably for endurance racing. Depending on what you're going to use them for will determine which tire you want. For example, you don't necessarily want to be running lapping sessions at a track on the Hoosier A's. On the other hand, I don't think you'd want to autocross on the Goodyear's.
The 470 compound is a harder compound probably for endurance racing. Depending on what you're going to use them for will determine which tire you want. For example, you don't necessarily want to be running lapping sessions at a track on the Hoosier A's. On the other hand, I don't think you'd want to autocross on the Goodyear's.
10-03-2006, 11:40 AM
#5
Team Owner
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Good Year G19s are far stickier.
I have run G19s in 370 and 470 compounds. The 470 is for enduro on hot sticty tracks 370s are temps below 74* and colder tracks or qualifing.
I have corded 370s in one day, but the stick was best I have experienced.
I have run G19s in 370 and 470 compounds. The 470 is for enduro on hot sticty tracks 370s are temps below 74* and colder tracks or qualifing.
I have corded 370s in one day, but the stick was best I have experienced.
10-03-2006, 12:24 PM
#6
Tech Contributor
To get back to the original question, and between the Hoosier A3SO5 and the Goodyear 470 compound slick, and assuming the same relative contact patch, and proper suspension settings for each, the Hoosier will "get sticky" very quickly, but once both tires are up to temperature
and running pressure, the Goodyear will have better mechanical grip.
Which brings us to the next point of USAGE: 69AutoXr has the key to that question - each tire's suitability depends upon your intended use, so let's look at your original question from the other driection:
1) IF competition rules dictate use of a DOT approved tire, the Goodyear is OUT.
2) IF your application is autocrossing or hillclimb, the Hoosier may be a better bet, because it "comes in" faster.
3) IF there is time to warm the tires, and ultimate grip is the goal, the slick will predictably be better, AND an even softer compound slick (lower R number in Goodyear's case) would be better still.
Incidentally, that "tire wear of 40" stuff is to satisfy the DOT compliance, and I am certain means "it will wear out quickly".
Ed LoPresti
and running pressure, the Goodyear will have better mechanical grip.
Which brings us to the next point of USAGE: 69AutoXr has the key to that question - each tire's suitability depends upon your intended use, so let's look at your original question from the other driection:
1) IF competition rules dictate use of a DOT approved tire, the Goodyear is OUT.
2) IF your application is autocrossing or hillclimb, the Hoosier may be a better bet, because it "comes in" faster.
3) IF there is time to warm the tires, and ultimate grip is the goal, the slick will predictably be better, AND an even softer compound slick (lower R number in Goodyear's case) would be better still.
Incidentally, that "tire wear of 40" stuff is to satisfy the DOT compliance, and I am certain means "it will wear out quickly".
Ed LoPresti
