Mixing tyres 996TT
Discussion
I've got Pirellis all round on my 996TT. I want to change to Michelin but the rears are nearly new. When I asked my local OPC they said not to mix the tyres.
True?
Will it make that much difference to have Michelins on the front and Pirellis on the rear.
I'm planning on the odd track day if that makes any difference.
Cheers
Andy
True?
Will it make that much difference to have Michelins on the front and Pirellis on the rear.
I'm planning on the odd track day if that makes any difference.
Cheers
Andy
It will make sod all difference as long as they are the same tyres on each axle. It might alter the cars handling a little but hey thats part of the fun 
On my C2S I had different rears on for 1 trackday and the car was awesome. Much longer tail slides and more easily correctable. Of course that meant I killed a set in 1 afternoon. Oops
On my Exige at the moment I have A048's all round and managed to kill a set of rears last week at Cadwell. I was desperate to get back out so I had to put on some normal road Michelins on the rear. The car became a right laugh as it turned in even faster but the rears did heat up way faster than the fronts.
So just stick them on and don't worry about it.
On my C2S I had different rears on for 1 trackday and the car was awesome. Much longer tail slides and more easily correctable. Of course that meant I killed a set in 1 afternoon. Oops
On my Exige at the moment I have A048's all round and managed to kill a set of rears last week at Cadwell. I was desperate to get back out so I had to put on some normal road Michelins on the rear. The car became a right laugh as it turned in even faster but the rears did heat up way faster than the fronts.
So just stick them on and don't worry about it.
I think JJR1 comments are spot-on eith regard to handling BUT with one large exception and it has nothing to do with handling.
Insurance.
If you start mixing tyres on your car against the manufacturers recomendations you could be putting yourself into a position where if you had to make a claim the insurance company could quite easily wriggle out of there liability.
For the sake of a couple of hundred quid... keep the tyres on the car to what Porsche specifies.
Insurance.
If you start mixing tyres on your car against the manufacturers recomendations you could be putting yourself into a position where if you had to make a claim the insurance company could quite easily wriggle out of there liability.
For the sake of a couple of hundred quid... keep the tyres on the car to what Porsche specifies.
nbetts said:
I think JJR1 comments are spot-on eith regard to handling BUT with one large exception and it has nothing to do with handling.
Insurance.
If you start mixing tyres on your car against the manufacturers recomendations you could be putting yourself into a position where if you had to make a claim the insurance company could quite easily wriggle out of there liability.
For the sake of a couple of hundred quid... keep the tyres on the car to what Porsche specifies.
Thats a myth. I used to work for Allianz and tbh it was always something which had a small amount of truth in it but only a tiny amount. What had happened a few times was that people were changing tyres on the same axle after punctures etc as they didnt want to fork out the extra dough for a pair. It usually happened that one tyre would become illegal earlier than the other and after an accident it was this that stopped the claim.Insurance.
If you start mixing tyres on your car against the manufacturers recomendations you could be putting yourself into a position where if you had to make a claim the insurance company could quite easily wriggle out of there liability.
For the sake of a couple of hundred quid... keep the tyres on the car to what Porsche specifies.
Just because it's a Porsche makes no difference at all. How many thousands of cheap runaround owners have chosen to replace only tyre for the above reason? There are no extra exclusions due to car value.
Don;t do it. Or do it and drive very carefully.
I was recently running Michelin tyres. I changed to Conti, but I couldn;t get the fronts and as the rears were down to canvas, had to put the new rear contis on with the Michelins on the front.
The handling was transformed - and not for the better. I could manage for a coupld of weeks, but honestly, if the car had driven that way when I bought it, I would have walked away. I was expecting it to be bad, but not that bad. Eveb straight line stability was affected.
I was recently running Michelin tyres. I changed to Conti, but I couldn;t get the fronts and as the rears were down to canvas, had to put the new rear contis on with the Michelins on the front.
The handling was transformed - and not for the better. I could manage for a coupld of weeks, but honestly, if the car had driven that way when I bought it, I would have walked away. I was expecting it to be bad, but not that bad. Eveb straight line stability was affected.
lingus75 said:
Thats a myth. I used to work for Allianz .........
Just because it's a Porsche makes no difference at all.......
Lingus75, you could well be right... personally I would not take the risk, Insurance companies are well within their rights not to pay out if the owner of a car has 'broken' a rule that the car manufacturer explicitly say 'DO NOT DO' - Just because it's a Porsche makes no difference at all.......
Just do it, it won't make any difference on the road (if it does you are about to lose you licence/have a big accident so slow down). If you go to a track day then you could find that it effects the handling with one end of the car having more grip than the other, the one time I did at Bedford it was a lot of fun with lots of slides as the front had sticky track tyre and the rears were road pirelli's. On the road though no difference at all at normal road speeds.
Richard.
Richard.
Gassing Station | Porsche General | Top of Page | What's New | My Stuff