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2004 C2 Tyre size increase

paulus

PCGB Member
Member
Has anyone got experience of using 295/30x18 rears with 235/40x18 fronts on a C2 ?
I've got a 2004 C2 with the standard 285/30x18 rears & 225/40x18 fronts & want to improve dry grip by fitting Pirelli PZero Corsa's - which I believe are a better compromise than the Michelin Pilot Sport Cup tyres for mainly road use - but with occasional track day outings. Everyhting I've seen suggests the Michelin Cups are a better track tyre - but need more warming up than the Corsas.
My existing Pirelli PZero Rosso's are about worn out - so now's the time to have a look at the options!

Unfortunately the Corsa's are only available in the slightly wider 295 / 235 widths (as fitted to the 996 GT3) - so I want to be sure there won't be fitting problems before I order them.

I've read on other forums where owners have fitted the GT3 tyre sizes that they fit without rubbing on inner or outer wheel arches (front or rear) - albeit on wider rims than the standard 10inch rears / 8 inch fronts that I have. As the GT3 uses the narrow C2 body without wheel arch modifications if I understand correctly, it would make sense that they should fit without issues.

Has anyone direct experience of using these tyre sizes on a C2 & if so were there problems ?
I don't think C4 fitment is relevant as the wider rear I guess should result in no problems.

Thanks for any input - Paul

2004 C2 Anniversary
(Including 345 bhp engine, sports suspension etc)
 
UPDATE : Based on posts on RennTech forums, I went ahead & fitted the larger tyres - absolutely no issues with clearances, interference rubbing under lock / suspension movement.
Now the only challenge is to investigate how much extra grip I've got in the dry !
 

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