The GT4 Tyre Thread
Discussion
I'm on the my second set of Dunlop which I rate them quite well for road/track, seem to wear extremely consistently on my car. The only major downside I've found is they are more expensive that Cup2's.
I do however now have a set of Trofeo R for track work...looking forward to seeing how they compare, just need to source another set of wheels to save the hassle of changing tyres.
I do however now have a set of Trofeo R for track work...looking forward to seeing how they compare, just need to source another set of wheels to save the hassle of changing tyres.
nudgerwilliams said:
Looks like there is an N-rated PZero in the right sizes for a more road tyre.
Not keen on Pirellis - what are the other N-spec tyres in similar sizes? Michelin Super Sports? nudgerwilliams said:
Have just replaced the front Cup2s on my car after three track days and 6 laps of the Ring. As others have said, wear pattern is a bit odd with the outside shoulder of the left front worn and the tread block inside the outer grove chamfered down below the wear bars. Rigth front tyre would probably do another day.
Rears more evenly worn and still with about 4.5mm tread left. I've put more Cup2s on, but price is a bit alarming!
That's my experience with the Dunlops - light/even wear on the rears, but more rapid, and slightly unusual, wear on the fronts. Rears more evenly worn and still with about 4.5mm tread left. I've put more Cup2s on, but price is a bit alarming!
On the BlackCircles website, the only N-rated tyres they have in the right size are the Cup2, the Dunlop SportMaxx and the PZero.
Lots of choice in the right size inluding Pilot SuperSports. The budget own-brand choice is a mere £64 each on the front - presumably those would be good for practicing skids!
Lots of choice in the right size inluding Pilot SuperSports. The budget own-brand choice is a mere £64 each on the front - presumably those would be good for practicing skids!
Porsche911R said:
You gone back into mad stalker mode ? Wtf !
Don't flatter yourself David, I was never in "mad stalker mode", on the contrary, the fact of the matter was you couldn't deal with being quoted and/or called out by numerous contributors on here. The sooner you realise this is a public forum with all that entails, the better, ergo if you don't want me to read and respond to your posts, don't post on here. Simple. ;-) Back on topic. I recalled you raved about the Dunlops (inbetween bemoaning Porsche and their great N rated "rip off" and getting your facts about the PS2's wrong...) so I thought I'd check back to see if the only thing consistent about the stuff you post on here was it's inconsistency....
Porsche911R said:
I was about the 1st person to try these, they won a few tests, and I like to try the best products, this is a 2012 thread
I hated the tyres and told people why and I thrown them away not even half worn. ,
Just for the record, it's threw ;-) But good for you for testing them for everyone else and deciding they're not worthy, a bit like snow foam and pretty much every iteration of the GT3 Porsche has ever built (Gen 2 997 GT3 apart obviously) This forum is SO lucky to have someone as unbiased as yourself who's happy to vet products and cars on our behalf, I really don't know what we'd do without you I hated the tyres and told people why and I thrown them away not even half worn. ,
Edited by Slippydiff on Thursday 1st September 13:58
Beedub said:
surely these figures are wrong.......
As far as I can remember they are the correct numbers as per some launch reviews. Front has the same rate as the 991 gt3 but less rear spring rate. I'd google to be sure if I wasn't on the mobile but think they are right... 
. Why would you think the numbers have to be wrong out of interest?Dunlop SMRs now replaced with Michelin PSC2s(at 2k mls 
)
First subjective impressions are of a better road and track tyre, and hopefully longer life. Did notice a bit more road noise on some m/way surfaces.
Still trying to work out which set of standard N-spec road tyres to put on my second set of wheels. Would prefer Goodyear Eagle F1 AS2s, but can't find anyone who can clarify if the 265/35s will fit on the 11" rears. They certainly fit on the Spyder's 10.5" rears?
)First subjective impressions are of a better road and track tyre, and hopefully longer life. Did notice a bit more road noise on some m/way surfaces.
Still trying to work out which set of standard N-spec road tyres to put on my second set of wheels. Would prefer Goodyear Eagle F1 AS2s, but can't find anyone who can clarify if the 265/35s will fit on the 11" rears. They certainly fit on the Spyder's 10.5" rears?
Approved sizes for Cayman GT4:
Summer
FA: 245/35 ZR 20 (91Y)
RA: 295/30 ZR 20 (101Y) XL
FA: 8.5 J x 20 H2, RO 61
RA: 11 J x 20 H2, RO 50
Winter
FA: 235/35 R 20 92V M+S
RA: 275/30 R 20 97V M+S
FA: 8.5J x 20 H2, RO 57
RA: 10 J x 20 H2, RO 50
FA: 245/35 R 20 91V M+S
RA: 295/30 R 20 97V M+S
FA: 8.5J x 20 H2, RO 61
RA: 11 J x 20 H2, RO 50
I would think the 265's would lend it an air of the VW stretch and poke trend...
Summer
FA: 245/35 ZR 20 (91Y)
RA: 295/30 ZR 20 (101Y) XL
FA: 8.5 J x 20 H2, RO 61
RA: 11 J x 20 H2, RO 50
Winter
FA: 235/35 R 20 92V M+S
RA: 275/30 R 20 97V M+S
FA: 8.5J x 20 H2, RO 57
RA: 10 J x 20 H2, RO 50
FA: 245/35 R 20 91V M+S
RA: 295/30 R 20 97V M+S
FA: 8.5J x 20 H2, RO 61
RA: 11 J x 20 H2, RO 50
I would think the 265's would lend it an air of the VW stretch and poke trend...
Pope said:
I would think the 265's would lend it an air of the VW stretch and poke trend...
Thanks JonWhat did you mean by that? Fitting slightly 'over' or 'under' sized tyres is not unusual, there's usually a degree of flexibility. Just be nice to have an expert opinion on the subject.
Pirelli do the exact sizes, but really not keen on them, and they are noisy. Would much prefer the GYs.
Geneve said:
Thanks Jon
What did you mean by that? Fitting slightly 'over' or 'under' sized tyres is not unusual, there's usually a degree of flexibility. Just be nice to have an expert opinion on the subject.
Pirelli do the exact sizes, but really not keen on them, and they are noisy. Would much prefer the GYs.
265 is quite a bit smaller than the 295 stock size!What did you mean by that? Fitting slightly 'over' or 'under' sized tyres is not unusual, there's usually a degree of flexibility. Just be nice to have an expert opinion on the subject.
Pirelli do the exact sizes, but really not keen on them, and they are noisy. Would much prefer the GYs.
Geneve said:
One track day at Silverstone GP and the fronts are pretty much gone
IMO that's the inevitable consequence of pushing round a circuit in a heavy road car. I'm a big fan of Michelin but the prospect of destroying an expensive set of tyres in one trackday wouldn't fill me with any joy at all.The latest missive from Evo on tyres tested is interesting. http://www.evo.co.uk/features/18309/the-best-tyres... Different sizes and car, but does give some indication of the priorities of the various manufacturers - and shows (if you didn't know already) that there are tradeoffs between dry and wet road grip, braking and sideways adhesion, ride and noise - and you can't have everything.
OK, now sorted. Two sets of OE wheels and two sets of tyres.
The disappointing, short lived, Dunlops now replaced with Michelin MPCS2s for road/track and, aside from a tad more road noise, a better tyre IMO and likely to be much more durable.
Second set (year round road use), Goodyear Eagle F1 AS2s, fitted following liaison with Goodyear Technical - 235/35R20 N0 and 275/35R20 M2.
Ran them 'back to back' and very pleased. GYs quieter by several dB, especially on UK m/ways, and a noticeably more compliant feel, rounding out sharp bumps. Entirely subjective, but very sweet road handling, wet or dry. And good value - £800 all inc at Protyre.
The disappointing, short lived, Dunlops now replaced with Michelin MPCS2s for road/track and, aside from a tad more road noise, a better tyre IMO and likely to be much more durable.
Second set (year round road use), Goodyear Eagle F1 AS2s, fitted following liaison with Goodyear Technical - 235/35R20 N0 and 275/35R20 M2.
Ran them 'back to back' and very pleased. GYs quieter by several dB, especially on UK m/ways, and a noticeably more compliant feel, rounding out sharp bumps. Entirely subjective, but very sweet road handling, wet or dry. And good value - £800 all inc at Protyre.
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