High wear Toyo T1-R on an MR2
Discussion
I did my first proper track day in my own car at the weekend. I did Llandow.
However my month/2000 mile old T1-Rs are absolutely dead.
It was damp/wet most of the day and we did 10ish sessions of 10-20 minutes each.
The drivers side tyres are fine owing to the clockwise track, but regardless, i wasnt expecting that level of tyre wear.
Are T1-Rs notoriously light wearing?
However my month/2000 mile old T1-Rs are absolutely dead.
It was damp/wet most of the day and we did 10ish sessions of 10-20 minutes each.
The drivers side tyres are fine owing to the clockwise track, but regardless, i wasnt expecting that level of tyre wear.
Are T1-Rs notoriously light wearing?
MK2 NA.
We were driving very hard and i made a mess of the pressures.
Started on the road pressures of 30 front 34 rear cold.
After having a major eppy when i saw the state of the tyres after the first 2 sessions i asked for some advice and dropped the pressures to 28 front 30 rear hot.
Maybe i put them too low. Maybe i should have blown them up a bit, who knows?
Not helped by the super soft tyre walls.
We were doing quick laps.
We were driving very hard and i made a mess of the pressures.
Started on the road pressures of 30 front 34 rear cold.
After having a major eppy when i saw the state of the tyres after the first 2 sessions i asked for some advice and dropped the pressures to 28 front 30 rear hot.
Maybe i put them too low. Maybe i should have blown them up a bit, who knows?
Not helped by the super soft tyre walls.
We were doing quick laps.
benedwards64 said:
T1-Rs are pretty soft and will have a high wear-rate on track. Out of interest what sort of MR2 do you have? A friend of mine has T1-Rs on the rear of his mk3 track car, they have taken a lot of punishment on track and still have a fair amount of life left in them...
Ow my.. Your car 
Benbay001 said:
MK2 NA.
We were driving very hard and i made a mess of the pressures.
Started on the road pressures of 30 front 34 rear cold.
After having a major eppy when i saw the state of the tyres after the first 2 sessions i asked for some advice and dropped the pressures to 28 front 30 rear hot.
Maybe i put them too low. Maybe i should have blown them up a bit, who knows?
Not helped by the super soft tyre walls.
We were doing quick laps.
Fair enough. The Mk2 is a pretty heavy car which combined with what sounds like (to my fairly inexperienced self) quite low pressures and soft tyres , so it's probably a combination of things. Perhaps try higher pressures next time to take some of the strain off the tyre-walls? On my mk1 I run 30F 33R cold on a set of street Yokohamas. No idea if that will work for you but I have found that lower pressures make the back end a bit too wayward.We were driving very hard and i made a mess of the pressures.
Started on the road pressures of 30 front 34 rear cold.
After having a major eppy when i saw the state of the tyres after the first 2 sessions i asked for some advice and dropped the pressures to 28 front 30 rear hot.
Maybe i put them too low. Maybe i should have blown them up a bit, who knows?
Not helped by the super soft tyre walls.
We were doing quick laps.
Benbay001 said:
Ow my.. Your car
Haha, the mk1 SC? Thanks mate, I like it 
benedwards64 said:
Fair enough. The Mk2 is a pretty heavy car which combined with what sounds like (to my fairly inexperienced self) quite low pressures and soft tyres , so it's probably a combination of things. Perhaps try higher pressures next time to take some of the strain off the tyre-walls? On my mk1 I run 30F 33R cold on a set of street Yokohamas. No idea if that will work for you but I have found that lower pressures make the back end a bit too wayward.
I think i wont be doing another track day unless i have a full set of track wheels and rubber. The T1-Rs simply arent up to it.benedwards64 said:
Haha, the mk1 SC? Thanks mate, I like it
Yeh, its stunning. What sort of power does it produce?Where are they worn? Every set I have had have done this on the shoulders:
However, the inner tread has held up reasonably well. If you consider that tread depth is measured across 3/4 of the tyre, I believe you are OK in the eyes of the law. That said, it depends if you want to take that risk.
Rainsport2s on the other hand, do completely melt. This was a nearly new tyre with 5-6mm of tread after 2 hours at Spa:
However, the inner tread has held up reasonably well. If you consider that tread depth is measured across 3/4 of the tyre, I believe you are OK in the eyes of the law. That said, it depends if you want to take that risk.
Rainsport2s on the other hand, do completely melt. This was a nearly new tyre with 5-6mm of tread after 2 hours at Spa:
bicycleshorts said:
Where are they worn? Every set I have had have done this on the shoulders:
However, the inner tread has held up reasonably well. If you consider that tread depth is measured across 3/4 of the tyre, I believe you are OK in the eyes of the law. That said, it depends if you want to take that risk.
Thats what they did, but i guess i carried on for longer as mine were more worn.However, the inner tread has held up reasonably well. If you consider that tread depth is measured across 3/4 of the tyre, I believe you are OK in the eyes of the law. That said, it depends if you want to take that risk.
I was Ben's co-driver (and co-tyre destroyer I suppose) for the day. I've done probably 20 track days over the last couple of years in a variety of cars but never experienced anything like this, and generally spend at least this amount of time on track. I tend to find a set of tyres normally lasts me 3-4 days, but I've never had the tyres do what Ben's did and form lips on the tread blocks.
For reference, here's a video of some laps I did on the day in Ben's MR2. Yes I was driving hard (and overtaking plenty of Elises once the rain came down
), but nothing massively lairy.
https://www.youtube.com/watch?v=sKOpPq4E7Bw
For reference, here's a video of some laps I did on the day in Ben's MR2. Yes I was driving hard (and overtaking plenty of Elises once the rain came down
), but nothing massively lairy.https://www.youtube.com/watch?v=sKOpPq4E7Bw
Benbay001 said:
Yeh, its stunning. What sort of power does it produce?
Around 170-180ish with the SC pulley kit, I don't know exactly without putting it on a rolling road. Enough to have fun! I've put up a bit more info here:http://www.pistonheads.com/gassing/topic.asp?h=0&a...
T1Rs are decent on the road for light cars but hopeless track tyres, they overheat and wear out extremely quickly (and unevenly). I've used them on various cars, some quite fast and heavy and some slow and light and it's the same story. Narrow treadblocks that move around a lot basically. Proper track tyres might cost more initially but are better value for money in the long run.
If you're more interested in having fun than outright laptimes I can recommend AD08Rs. They're not really that much more grippy than a good road tyre but a) they keep that level of grip consistently on track and b) they wear incredibly well. I've done two trackdays on mine (MX5 turbo) and I've been astonished by how evenly and slowly they're wearing (two trackdays would have killed new T1Rs on this car). They work ok on the road too although much stiffer sidewalls so a bit more uncomfortable than road tyres and not as good in the wet as T1Rs or Eagle F1s etc.
If you're more interested in having fun than outright laptimes I can recommend AD08Rs. They're not really that much more grippy than a good road tyre but a) they keep that level of grip consistently on track and b) they wear incredibly well. I've done two trackdays on mine (MX5 turbo) and I've been astonished by how evenly and slowly they're wearing (two trackdays would have killed new T1Rs on this car). They work ok on the road too although much stiffer sidewalls so a bit more uncomfortable than road tyres and not as good in the wet as T1Rs or Eagle F1s etc.
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