Effect on handling of new tyres.
Discussion
So last week I had new T1S Toyos fitted to the rears on my 390.
The fronts are Toyo T1.
I've been 'running them in', and there's a couple of hundred miles on them now.
I was expecting the back end to feel a bit different (presumably grippier), as the last ones were well down,
but to be honest, things feel a bit wobbly and unstable back there, especially tram-lining, compared to before.
I've dropped the pressures to 22psi, and I think that's improved things slightly, but being as I'm an ignoramous as regards handling set-ups, perhaps someone with a bit of knowledge could suggest ways of improving matters. Previously handling was superb, and car very stable.
Should I swap the new tyres to the front, maybe, or
can I expect things to improve as the tyres 'bed in' ?
The fronts are Toyo T1.
I've been 'running them in', and there's a couple of hundred miles on them now.
I was expecting the back end to feel a bit different (presumably grippier), as the last ones were well down,
but to be honest, things feel a bit wobbly and unstable back there, especially tram-lining, compared to before.
I've dropped the pressures to 22psi, and I think that's improved things slightly, but being as I'm an ignoramous as regards handling set-ups, perhaps someone with a bit of knowledge could suggest ways of improving matters. Previously handling was superb, and car very stable.
Should I swap the new tyres to the front, maybe, or
can I expect things to improve as the tyres 'bed in' ?
tallbloke said:
They'll cure and stiffen a bit after some longer runs to warm them up fully and put them through the full heating cooling cycle a few times. New tyres often feel a bit 'wandery' compared to the old ones due to the big tread depth.
I was hoping that would be the case - the 'wandery' part is a bit disconcerting, that's all.
Anyway, good long trip coming up on Saturday.
If you have adjustable shock absorbers at the back, I would propose to try a softer setting as too hard could provoke the same type of symptoms.
(It is just a sneaky way to persuade you to the 'find the best settings' by yourself on your TVR of course....)
Rob
>> Edited by 350zwelgje on Monday 25th July 19:22
(It is just a sneaky way to persuade you to the 'find the best settings' by yourself on your TVR of course....)
Rob
>> Edited by 350zwelgje on Monday 25th July 19:22
As previously mentioned, you need to put new tyres through two or three heat cycles to complete the curing process. This is easy enough to do, but is not something that is going to happen spontaneously in normal use. Curing the tyre strengthens and toughens it, giving more grip and less wear.
New tyres with tall tread (and initially, nice soft rubber) generally like a slightly lower pressure than old worn tyres with shallow tread and harder rubber.
New tyres with tall tread (and initially, nice soft rubber) generally like a slightly lower pressure than old worn tyres with shallow tread and harder rubber.
GreenV8S said:
As previously mentioned, you need to put new tyres through two or three heat cycles to complete the curing process. This is easy enough to do, but is not something that is going to happen spontaneously in normal use. Curing the tyre strengthens and toughens it, giving more grip and less wear.
New tyres with tall tread (and initially, nice soft rubber) generally like a slightly lower pressure than old worn tyres with shallow tread and harder rubber.
Well of course that's why I lowered to 22psi
(lying through teeth). Thanks chaps for the advice.
Hopefully my upcoming 4-500 mile round trip to BBWF
should help matters then.
I was beginning to think I was just a crap driver.
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