How many days are you getting out of tires?
#1
Intermediate
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How many days are you getting out of tires?
Hi, curious about your experiences with lifetime of track tires. I recently got 6 days out of a set of Hoosier R6. I'm wondering if ordering them heat cycled from tirerack helps, they say it does, but has anybody done the experiment? How many days do you think it would add? Also, do you get more days out of street tires? The treadwear rating is way higher, but grapevine says they get used up really fast also. If they're going away as fast as Hoosiers, you may as well be on Hoosiers! How much does shaving help?
#2
Burning Brakes
I would say on average I get 3 days of use out of Hoosier R6's. I usually heat cycle them myself (actually it's a good excuse to have some fun with the car). I used to get about 5 or 6 days out of Michelin Pilot Sport Cups. The original run flats are pretty hard and would probably last even longer although I have never used them.
#3
"AlohaC5" Senior Member
The life expectacy of tires has a lot to do with how smooth you drive. I run Hoosier R6s and have 6 days on them - and I estimate I have another 6 before they're gone. I push my car hard at speed, but don't "scrub" or over drive them around the course. Smooth is faster while also minimizing tire wear. I ordered my R6s without being heat cycled - I do that myself. Mike
Last edited by Gray Ghost GS; 07-15-2008 at 03:54 PM.
#4
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We have been seeing that. Getting through the corners correctly is causing less tire scrubbing and is making for better lap times. So, if you leave the driver constant, and you're getting 12 days out of Hoosiers, have you done the experiment with street tires, or a compromise tire like Toyos? Would you expect fewer days out of street tires because they're not made for it (chunking, etc.) or more days because of better treadwear rating?
#5
"AlohaC5" Senior Member
Same driver, car and track - you will on average get more track days out of the street tires like BF Goodridge g-Force T/A KDs. However, I tried the Toyo RA1s unshaved and found them to wear faster. Hope this helps.
#6
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Interesting! My friend has been using unshaved Toyo RA1s and isn't seen much more life than I'm getting with hoosier, which is what inspired this question in the first place. So when you saw Toyos wear faster, are you talking faster than the g-force or faster than the hoosiers? do you think shaving the toyos would make them last longer, or are you just shaving away their lifespan?
#7
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You can't expect new street tires to hold up well. There is too much tread depth and they squirm quite a bit which makes them feel very loose. Older well worn tires will do better. It would be better to use tires that have no more than 6 to 7/32 of tread depth. Even then you will get some chunking. The tread depth is one of the secrets of the Goodyear Supercar tire. They came from the factory with 8/32 of tread Vs the normal 10 to 11/32 that most new tires have.
Bill
Bill
#8
"AlohaC5" Senior Member
I would stick with the Hoosiers if you're an intermediate/advanced drive and work on consistent smoothness around the track in the corners - you will see them last longer. If you're a beginner/novice, stick with a good set of street tires to improve car control and smoothness because they will "talk" more and let you know where you're scrubbing them in the turns, etc.
Last edited by Gray Ghost GS; 07-15-2008 at 04:43 PM.
#9
Team Owner
3-4 days depending on the track on Hoosiers. Run street tires hard and they will over heat and your car will have the bells going off. I could send the stock ties fron 30-31 to 45 lb. in ten minutes or less. My freind runs fairly hard and is using new BFG and they wear very well but don't grip anything like a Hoosier. They are suppossed to be their new track tire. The faster you go so does the tire. If your suspension is not setup right I suspect that also hurts your tire life greatly.
#10
Drifting
About 10 track days at VIR with a stock C5 Z06......with 4 20-minute sessions per day. I heat cycle them myself at least 1 week before the first event.
This is on about a 2.10 average lap time, with some slow 2.12-2.13s and some quicker 2.08s mixed in.
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This is on about a 2.10 average lap time, with some slow 2.12-2.13s and some quicker 2.08s mixed in.
.
#11
#12
Drifting
My old method: On a sunny day, do some alternating full throttle/hard braking (generates good heat across the tires) combined with some mildly aggressive cornering around a deserted business complex for 10 minutes. Go home, let tires sit for a few days. Hope cops don't pull me over.
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#13
Racer
I run Hoosiers R6 on my C6Z06 and tore up a set after 3 1/2 track days. I called Hoosier directly and spoke with their engineer on R6 tires. He recommended I start with higher initial pressure of around 36 front and 34 rear and let them heat up to around 40. I was starting at 30 psi all around. My left front cut into the cord when I stopped running on the track with 3 1/2 track days (2 @ Roebling and 1 1/2 @ Sebring).
Engineer also recommended having 1.5 to 2 degrees negative camber on the front to help even out the contact patch and lessen the scrub on the outside of the left front. I run the car on the street also so was reluctant to put that much camber in. Running higher pressures as he recommended is intended to make up for the lack of neg. camber, but its a compromise. I asked him about the tires getting greassy at higher pressures and he assured me they don't. My experience would indicate differently. He told me the tires are very safe up to 50 psi at high speed, and running 42 to 44 psi is not a problem.
So now I have to order new tires for the front and think about how much camber I can live with on the street. I hope this helps you. Oh, by the way, I run stock C6Z06 tire sizes. A lot of guys are running 18" wheels in the back in order to use the Toyos R1A.
Engineer also recommended having 1.5 to 2 degrees negative camber on the front to help even out the contact patch and lessen the scrub on the outside of the left front. I run the car on the street also so was reluctant to put that much camber in. Running higher pressures as he recommended is intended to make up for the lack of neg. camber, but its a compromise. I asked him about the tires getting greassy at higher pressures and he assured me they don't. My experience would indicate differently. He told me the tires are very safe up to 50 psi at high speed, and running 42 to 44 psi is not a problem.
So now I have to order new tires for the front and think about how much camber I can live with on the street. I hope this helps you. Oh, by the way, I run stock C6Z06 tire sizes. A lot of guys are running 18" wheels in the back in order to use the Toyos R1A.
#14
Melting Slicks
I run higher pressures, and have greatly extended tire life. Even if it means 10 seconds a lap, who cares. The tires do stick better at lower pressures, but it's simply not worth the expense $$$$$.
At lower pressures, you can cord a hoosier in 1 day.
At lower pressures, you can cord a hoosier in 1 day.
#16
"AlohaC5" Senior Member
I run Hoosiers R6 on my C6Z06 and tore up a set after 3 1/2 track days. I called Hoosier directly and spoke with their engineer on R6 tires. He recommended I start with higher initial pressure of around 36 front and 34 rear and let them heat up to around 40. I was starting at 30 psi all around. My left front cut into the cord when I stopped running on the track with 3 1/2 track days (2 @ Roebling and 1 1/2 @ Sebring).
Engineer also recommended having 1.5 to 2 degrees negative camber on the front to help even out the contact patch and lessen the scrub on the outside of the left front. I run the car on the street also so was reluctant to put that much camber in. Running higher pressures as he recommended is intended to make up for the lack of neg. camber, but its a compromise. I asked him about the tires getting greassy at higher pressures and he assured me they don't. My experience would indicate differently. He told me the tires are very safe up to 50 psi at high speed, and running 42 to 44 psi is not a problem.
So now I have to order new tires for the front and think about how much camber I can live with on the street. I hope this helps you. Oh, by the way, I run stock C6Z06 tire sizes. A lot of guys are running 18" wheels in the back in order to use the Toyos R1A.
Engineer also recommended having 1.5 to 2 degrees negative camber on the front to help even out the contact patch and lessen the scrub on the outside of the left front. I run the car on the street also so was reluctant to put that much camber in. Running higher pressures as he recommended is intended to make up for the lack of neg. camber, but its a compromise. I asked him about the tires getting greassy at higher pressures and he assured me they don't. My experience would indicate differently. He told me the tires are very safe up to 50 psi at high speed, and running 42 to 44 psi is not a problem.
So now I have to order new tires for the front and think about how much camber I can live with on the street. I hope this helps you. Oh, by the way, I run stock C6Z06 tire sizes. A lot of guys are running 18" wheels in the back in order to use the Toyos R1A.
Last edited by Gray Ghost GS; 07-16-2008 at 02:58 PM.
#17
Team Owner
Hoosiers star 32-33 frt 31-32 rear and they all end up at 40-43 depending on the ambient temps and track temp. 2.9 frt and 1.5 rear camber. They don't get greasy like a Khumo which I hated. They have a nice predictable slide if I want them to.
#18
Burning Brakes
That's exactly how mine behave. Start at 31 -32 and always end up at around 40-42 psi. As the day gets warmer I am constantly reducing pressure after each session but still end up at 40+. Unfortunately mine is a street car so my negative camber is a compromise.
#19
Burning Brakes
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My current v710's are shot, like super drifto tires. I currently have 8+ days on them and they were on the car when i bought it. it really depends on what and how you drive, but my v710's were super grippy until 5 days. every day after the 5th i had to be careful, but they were still fast. Fast enough for me to keep up with most people on hoosiers
I love v710's
I love v710's
#20
My current v710's are shot, like super drifto tires. I currently have 8+ days on them and they were on the car when i bought it. it really depends on what and how you drive, but my v710's were super grippy until 5 days. every day after the 5th i had to be careful, but they were still fast. Fast enough for me to keep up with most people on hoosiers
I love v710's
I love v710's
I've been running the V710s between 30 and 35 psi with no issues. Anything above 35 psi cold will get the tires real loose on the corners.