Flipping Hoosier R6 Tires
01-24-2009, 08:48 PM
#1
Team Owner
Thread Starter
Flipping Hoosier R6 Tires
I assume Hoosiers are not directional or left/right designated.
So if I'm getting wear on the outer edges then I can flip the tires right to left so the worn edges are on the inside.
Also if only one side is wearing can the right and left wheels be swapped. This would reverse the direction of the tire. Is this a problem??
DH
So if I'm getting wear on the outer edges then I can flip the tires right to left so the worn edges are on the inside.
Also if only one side is wearing can the right and left wheels be swapped. This would reverse the direction of the tire. Is this a problem??
DH
01-24-2009, 08:53 PM
#2
Melting Slicks
Not directional. Flip them inside out and move them side to side. I move the left to the right side every other event. Since most tracks cause more wear on the left front because we run clockwise. Haven't had any problems. After 3-4 events is when I flip them inside out.
01-24-2009, 08:55 PM
#3
Burning Brakes
Member Since: Feb 2005
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Not a problem at all! I do it all the time with A6's. Hell, I even did it with Kumho V710's and Goodyear GSCS's!! Directional tread only has one purpose, water evacuation. The only DOT race tires I know of that you did not want to flip on the rim were the old model BFG R1's, they actually have "stagger" in the sidewalls.
Joe
Joe
01-24-2009, 08:57 PM
#4
"AlohaC5" Senior Member
This info is from the Hoosier Tire website:
Does it matter which direction I mount my Hoosier Racing Tires?
Tires can be reversed or flipped but not until they have been run for at least four complete heat cycles. If this is not done the tire could be damaged and may fail.
Does it matter which direction I mount my Hoosier Racing Tires?
Tires can be reversed or flipped but not until they have been run for at least four complete heat cycles. If this is not done the tire could be damaged and may fail.
01-24-2009, 11:14 PM
#6
Team Owner
Thread Starter
This info is from the Hoosier Tire website:
Does it matter which direction I mount my Hoosier Racing Tires?
Tires can be reversed or flipped but not until they have been run for at least four complete heat cycles. If this is not done the tire could be damaged and may fail.
Does it matter which direction I mount my Hoosier Racing Tires?
Tires can be reversed or flipped but not until they have been run for at least four complete heat cycles. If this is not done the tire could be damaged and may fail.
DH
01-24-2009, 11:26 PM
#7
"AlohaC5" Senior Member
From the Tire Rack:
The first time a competition tire is used is the most important. During that run, its tread compound is stretched, some of the weaker bonds between the rubber molecules will be broken (which generates some of the heat). If the tires are initially run too hard or too long, some of the stronger bonds will also be broken which will reduces the tire's grip and wear qualities.
Running new tires through an easy heat cycle first, and allowing them to relax allows the rubber bonds to relink in a more uniform manner than they were originally manufactured. It actually makes them more consistent in strength and more resistant to losing their strength the next time they are used. An important heat cycling step is that after being brought up to temperature, the tires require a minimum of 24 to 48 hours to relax and reform the bonds between their rubber molecules.
I would say, 1 HPDE day. I'm sure others with more experience will chime in.
The first time a competition tire is used is the most important. During that run, its tread compound is stretched, some of the weaker bonds between the rubber molecules will be broken (which generates some of the heat). If the tires are initially run too hard or too long, some of the stronger bonds will also be broken which will reduces the tire's grip and wear qualities.
Running new tires through an easy heat cycle first, and allowing them to relax allows the rubber bonds to relink in a more uniform manner than they were originally manufactured. It actually makes them more consistent in strength and more resistant to losing their strength the next time they are used. An important heat cycling step is that after being brought up to temperature, the tires require a minimum of 24 to 48 hours to relax and reform the bonds between their rubber molecules.
I would say, 1 HPDE day. I'm sure others with more experience will chime in.
Last edited by Gray Ghost GS; 01-25-2009 at 12:26 PM.
01-25-2009, 01:20 AM
#9
Team Owner
Thread Starter
01-25-2009, 01:22 AM
#10
Team Owner
Thread Starter
01-25-2009, 10:13 AM
#12
"AlohaC5" Senior Member
I think there's a big difference between a day of racing vs. 3 x 25 minute HPDE sessions per day, which is what I think DH and I are referring to.
A complete heat cycle is both the warming up and proper cool down of the tire - Tire Rack and a few other sources say 24 hours between heat cycles, which you don't get between HPDE sessions (you might get 2 hours between sessions).
I agree, if it was a full race day for a heat cycle, that wouldn't work - tire would be gone within 2 days vs. 8 to 12 HPDE days - different calculation for HPDE. Just a thought - your mileage may vary.
A complete heat cycle is both the warming up and proper cool down of the tire - Tire Rack and a few other sources say 24 hours between heat cycles, which you don't get between HPDE sessions (you might get 2 hours between sessions).
I agree, if it was a full race day for a heat cycle, that wouldn't work - tire would be gone within 2 days vs. 8 to 12 HPDE days - different calculation for HPDE. Just a thought - your mileage may vary.
Last edited by Gray Ghost GS; 01-25-2009 at 11:41 AM.
01-25-2009, 03:00 PM
#15
Melting Slicks
From the Tire Rack:
The first time a competition tire is used is the most important. During that run, its tread compound is stretched, some of the weaker bonds between the rubber molecules will be broken (which generates some of the heat). If the tires are initially run too hard or too long, some of the stronger bonds will also be broken which will reduces the tire's grip and wear qualities.
Running new tires through an easy heat cycle first, and allowing them to relax allows the rubber bonds to relink in a more uniform manner than they were originally manufactured. It actually makes them more consistent in strength and more resistant to losing their strength the next time they are used. An important heat cycling step is that after being brought up to temperature, the tires require a minimum of 24 to 48 hours to relax and reform the bonds between their rubber molecules.
I would say, 1 HPDE day. I'm sure others with more experience will chime in.
The first time a competition tire is used is the most important. During that run, its tread compound is stretched, some of the weaker bonds between the rubber molecules will be broken (which generates some of the heat). If the tires are initially run too hard or too long, some of the stronger bonds will also be broken which will reduces the tire's grip and wear qualities.
Running new tires through an easy heat cycle first, and allowing them to relax allows the rubber bonds to relink in a more uniform manner than they were originally manufactured. It actually makes them more consistent in strength and more resistant to losing their strength the next time they are used. An important heat cycling step is that after being brought up to temperature, the tires require a minimum of 24 to 48 hours to relax and reform the bonds between their rubber molecules.
I would say, 1 HPDE day. I'm sure others with more experience will chime in.
If not, any recommendations on how to heat cycle them good before a track day? I don't have anyplace to just get a good cycle on them other than the street...
01-25-2009, 06:02 PM
#16
"AlohaC5" Senior Member
Recommend only going 7/10s the first day on brand new R-compound tires to heat cycle and scuff them up to eliminate the tire mold release compound - then "go for it" on the 2nd day.
01-25-2009, 06:23 PM
#17
Burning Brakes
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I think there's a big difference between a day of racing vs. 3 x 25 minute HPDE sessions per day, which is what I think DH and I are referring to.
A complete heat cycle is both the warming up and proper cool down of the tire - Tire Rack and a few other sources say 24 hours between heat cycles, which you don't get between HPDE sessions (you might get 2 hours between sessions).
I agree, if it was a full race day for a heat cycle, that wouldn't work - tire would be gone within 2 days vs. 8 to 12 HPDE days - different calculation for HPDE. Just a thought - your mileage may vary.
A complete heat cycle is both the warming up and proper cool down of the tire - Tire Rack and a few other sources say 24 hours between heat cycles, which you don't get between HPDE sessions (you might get 2 hours between sessions).
I agree, if it was a full race day for a heat cycle, that wouldn't work - tire would be gone within 2 days vs. 8 to 12 HPDE days - different calculation for HPDE. Just a thought - your mileage may vary.
After that... EACH time you get the tire up to temp is a heat cycle.
(3) 25 min. HPDE sessions = 3 HC
(3) 60 min enduros = 3HC
01-25-2009, 07:13 PM
#18
Team Owner
Thread Starter
That's not true. When they are talking about 24 hours between heat cycles, they are referring to the FIRST heat cycle. This is the one that Hoosier says is important to wait 24 hours to prolong tire life.
After that... EACH time you get the tire up to temp is a heat cycle.
(3) 25 min. HPDE sessions = 3 HC
(3) 60 min enduros = 3HC
After that... EACH time you get the tire up to temp is a heat cycle.
(3) 25 min. HPDE sessions = 3 HC
(3) 60 min enduros = 3HC
Does driving to the event at 70 miles an hour count. They get warm but not hot ?????????????????
DH
01-25-2009, 07:46 PM
#19
Burning Brakes
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01-25-2009, 08:30 PM
#20
Team Owner
Thread Starter
I don't really have a choice either
DH