Discussion
Sorry Paul 
What it says in the title really ?
Rears i have TOYO T1-R 245/45/ZR16 94W
I need to replace my front T1-S
Insurance company said:
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Following our recent telephone conversation I can confirm that the modification listed bellow has been approved by our underwriters:
15" V - rated front wheel tyre(s).
This modification has been listed on your policy and will not affect this years premium.
Regards
A fit sounding young lady
Service Advisor
Liverpool Victoria General Insurance
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So what are you thoughts on mixing similair tread patterns (Different manufacturer)
Would you risk a "V" Rating ?
T1-R 91 V
SP9000 ZR
FFG How you getting on with the SP9000 Fronts ?
or should i ask the boss
>> Edited by seasider on Tuesday 16th May 11:39
What it says in the title really ?
Rears i have TOYO T1-R 245/45/ZR16 94W
I need to replace my front T1-S
Insurance company said:
-----------------------------------------------------------------
Following our recent telephone conversation I can confirm that the modification listed bellow has been approved by our underwriters:
15" V - rated front wheel tyre(s).
This modification has been listed on your policy and will not affect this years premium.
Regards
A fit sounding young lady
Service Advisor
Liverpool Victoria General Insurance
------------------------------------------------------------------
So what are you thoughts on mixing similair tread patterns (Different manufacturer)
Would you risk a "V" Rating ?
T1-R 91 V
SP9000 ZR
FFG How you getting on with the SP9000 Fronts ? or should i ask the boss
>> Edited by seasider on Tuesday 16th May 11:39
I've ordered the Falkens for the front of mine, W rated from austec - expensive as they were £20 a tyre more than from Camskill but easier to get done while the car is being finished off - i'm not a fan of the Toyo's as i find them too grippy to a point then they give up, where as the Falkens are progressive - the rears i buy as good and cheap as possible, mine dont normally last long currently running Kumho 712 Ecsta's and they are 2 or 3 times better than the So2's i had ion the rears before
currently running Kumho 712 Ecsta's and they are 2 or 3 times better than the So2's i had ion the rears before
).Without wishing to teach anyone to suck eggs, you do know that 'V' speed rating tyres are rated to a maximum speed less than the quote top speed of a Griffith (let alone a modified one), don't you? I can't see how this can be a good idea for such a safety critical component. 
As a reminder (full details here):
'V' - 149mph max.
'W' - 168mph max.
'Z' - 150+mph
As a reminder (full details here):
'V' - 149mph max.
'W' - 168mph max.
'Z' - 150+mph
RichardD said:
...I can't see how this can be a good idea for such a safety critical component. Unless you do more than 149mph then what is the problem with V tyres? Unless I'm mistaken a speed rating is exactly that speed - not grip... ?
The speed rating is a method of identifying tyres of a suitable performance for a given vehicle. It is not simply about maximum speed, but also rates of acceleration, deceleration and lateral forces that are likely to be expected. Would you buy a crash helmet that could only survive a 2kg impact because you weren't planning on banging your head with any greater force?
Besides, I just know seasider is going to exceed 149mph.
>> Edited by jeremyc on Tuesday 16th May 13:55
RichardD said:
...I can't see how this can be a good idea for such a safety critical component.
I have been known to Richard
(not for extended periods) I know what your saying Jeremy
Welsh bloke.... The link you sent me are "V" rated as well Edited for Jeremy's last post
Not that often
>> Edited by seasider on Tuesday 16th May 14:01
jeremyc said:
...nono: The speed rating is a method of identifying tyres of a suitable performance for a given vehicle. It is not simply about maximum speed, but also rates of acceleration, deceleration and lateral forces that are likely to be expected....
I get your point, but there must be cars that can put huge forces through VR or lower rated tyres than TVR's due to weight and bad balance (FWD diesel shopping trollies inparticular) if cornered hard?
A lorry must put a lot more force through its tyres than a Caterham, but they have a lower "speed rating", but are capable of coping with more force.
Were the Avons on Caterham R300 and R400 better than VR, as these cars had plenty of acceleration / deceleration
? For standard cars and road driving, I don't see a problem with V's.
Anyway for a modified TVR 500 it does make sense to go with the best available for track / runway urges
Sorry for nitpicking,
Del,
The SP9000's are as good as the Toyo as far as I can see. Haven't really been trying too hard though as have been running in again. Got 205/55/ZR15's (SP9000) on the front and Toyo T1R 245/45/ZR16 (W rated) on the rear).
Seem to mix well and no noticable difference in Toyo T1S front and rear (on other wheels). Been round roundabouts pretty quick and it holds really well but the full suspension rebuild and drop links will have assisted.
If the Toyo was available in W rated i'd have stuck with them as the T1S was a fantastic improvement on the Bridgestone, which I can't believe people rave about.
As most will know car is driven daily, rain, shine, snow by both myself and Mrs FFG. Is very good in the wet but still treat with great respect.
Wanted to keep this short but oh well.
FFG
>> Edited by FlipFlopGriff on Tuesday 16th May 17:03
The SP9000's are as good as the Toyo as far as I can see. Haven't really been trying too hard though as have been running in again. Got 205/55/ZR15's (SP9000) on the front and Toyo T1R 245/45/ZR16 (W rated) on the rear).
Seem to mix well and no noticable difference in Toyo T1S front and rear (on other wheels). Been round roundabouts pretty quick and it holds really well but the full suspension rebuild and drop links will have assisted.
If the Toyo was available in W rated i'd have stuck with them as the T1S was a fantastic improvement on the Bridgestone, which I can't believe people rave about.
As most will know car is driven daily, rain, shine, snow by both myself and Mrs FFG. Is very good in the wet but still treat with great respect.
Wanted to keep this short but oh well.
FFG
>> Edited by FlipFlopGriff on Tuesday 16th May 17:03
k it... Might get some R888 
A cautionary tail
A few years ago we put my wheels and tyres (TVR Taimar) - then H rated old system up to 135mph, on a friends TVR M Turbo to go on a trackday, seemed fair, we'd both drive his car but on my wheels/tyres.
At the end of the day I was missing whole and partial tread blocks (explain that to the MOT man!), even though it was a slow track and we probably never exceeded 90-100mph.
You are buying part of a package that includes acceleration and braking.
My advise is don't do it.
davidy
A few years ago we put my wheels and tyres (TVR Taimar) - then H rated old system up to 135mph, on a friends TVR M Turbo to go on a trackday, seemed fair, we'd both drive his car but on my wheels/tyres.
At the end of the day I was missing whole and partial tread blocks (explain that to the MOT man!), even though it was a slow track and we probably never exceeded 90-100mph.
You are buying part of a package that includes acceleration and braking.
My advise is don't do it.
davidy
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