Hi folks,
I don't need tyres yet but I've been doing some research to try and figure out what options are available come that time.
I'm interested in switching over to a 305 width rear tyre, not for looks or perceived extra grip but just because the number of tyre options is much bigger. I understand a little extra mechanical grip on the back will possibly introduce some understeer however this can be dialled out with a visit to Christ at CoG (luckily he's only 20mins away!). I'm also aware some manufacturer's 295 can be as wide as another's 305 due to difference's in construction, etc. So it's all relative.
Now my 997.2 C2S has the Carrera S II wheels fitted, so 11" width and ET67 offset. The difference in rolling diameter by upping tyre width is 6mm or a -0.9% speedo error, so within acceptable tolerances.
My main question is, would OPC have a whine about the car having 305's on 11" wheels (Porsche would have 11.5" rears on 305's per the C4/C4S)? I'll be putting on Porsche warranty in a couple of months and wanted to know if folks had any experience with this? I'm looking to keep the fitment to N rated tyres.
I know if you ordered a C2S from factory with the Carrera Sport wheels, these were 11.5" rears and came with 305's, so I think the main issue for the OPC might be a 305 on a 11" (despite it being just fine from a fitment standpoint.
My other option is to get a set of OEM gen 1 GT2/3 wheels which are 8.5" & 12" widths front and back respectively and fit 235/305 per those cars. Then I can use the current wheels as winter tyres/wheels and the new GT2 wheels as summer tyres with Sport Cup 2's.
Any experience on this front with the OPC from folks would be most useful thanks. I've had many sets of PS2's on my prior Porsche (and other cars) and whilst a good tyre I was keen to try Cup 2's or the Pirellii Corsa Direzionale/Assimetrico system on the 997, the latter has good reviews and comes with a full 8mm thread! There's just very little choice on a 295.
I don't need tyres yet but I've been doing some research to try and figure out what options are available come that time.
I'm interested in switching over to a 305 width rear tyre, not for looks or perceived extra grip but just because the number of tyre options is much bigger. I understand a little extra mechanical grip on the back will possibly introduce some understeer however this can be dialled out with a visit to Christ at CoG (luckily he's only 20mins away!). I'm also aware some manufacturer's 295 can be as wide as another's 305 due to difference's in construction, etc. So it's all relative.
Now my 997.2 C2S has the Carrera S II wheels fitted, so 11" width and ET67 offset. The difference in rolling diameter by upping tyre width is 6mm or a -0.9% speedo error, so within acceptable tolerances.
My main question is, would OPC have a whine about the car having 305's on 11" wheels (Porsche would have 11.5" rears on 305's per the C4/C4S)? I'll be putting on Porsche warranty in a couple of months and wanted to know if folks had any experience with this? I'm looking to keep the fitment to N rated tyres.
I know if you ordered a C2S from factory with the Carrera Sport wheels, these were 11.5" rears and came with 305's, so I think the main issue for the OPC might be a 305 on a 11" (despite it being just fine from a fitment standpoint.
My other option is to get a set of OEM gen 1 GT2/3 wheels which are 8.5" & 12" widths front and back respectively and fit 235/305 per those cars. Then I can use the current wheels as winter tyres/wheels and the new GT2 wheels as summer tyres with Sport Cup 2's.
Any experience on this front with the OPC from folks would be most useful thanks. I've had many sets of PS2's on my prior Porsche (and other cars) and whilst a good tyre I was keen to try Cup 2's or the Pirellii Corsa Direzionale/Assimetrico system on the 997, the latter has good reviews and comes with a full 8mm thread! There's just very little choice on a 295.
