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YOUR RESEARCHGT4 tyres - Page 1 - Boxster/Cayman - PistonHeads UK
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Install ps4s
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I fitted PS4S to my GT4 to make it more useable in spring and autumn but it really took away the sharpness of the handling.
GT4 tyres - Page 1 - Boxster/Cayman - PistonHeads UK
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Leading evidence: 'Install ps4s' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install ps4s' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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I’ve used Cup1 &2 for 15 years on 911s and they were perfect, just don’t like them on the GT4 in anything but a hot dry day.
GT4 tyres - Page 1 - Boxster/Cayman - PistonHeads UK
Use ps4ss as winters
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GT4 tyres - Page 1 - Boxster/Cayman - PistonHeads UK
Use track
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Performed · outcome unconfirmed
I’ve still got my cups so gonna buy a set of track wheels for them and then they’ll only be used for the track.
GT4 tyres - Page 1 - Boxster/Cayman - PistonHeads UK
Replace but will
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Suggestion · Original poster
I intend to stick to them when changing but will then get N rated .
GT4 tyres - Page 1 - Boxster/Cayman - PistonHeads UK
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 1 discussions
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Generation: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Any thoughts on current N rated road tyres for GT4 ( both 981 and 718) other than Cup2s as I am an all year round driver. I see Michelin has a new 5s out but probably not N rated.
I fitted PS4S to my GT4 to make it more useable in spring and autumn but it really took away the sharpness of the handling.
It felt a bit like driving on winters all year round, but I guess that's the compromise you make.
If I were to do it again, I'd get 2nd set of wheels with PS4S for the colder months, probably 19".
PS5S not available yet in our sizes or rating hopefully soonish….
I went PS4S, just couldn’t get heat into the Cups at all, I only do a few track days a year so 95% is road driving and I have found the 4S to be a better tyre in that situation, tracking them is only an issue if you want to do more than 10 laps in a stint and they go squidgy.
I’ve still got my cups so gonna buy a set of track wheels for them and then they’ll only be used for the track. Still prefer the 4S in summer as a road tyre, I like the softer sidewall as the suspension is always set to firm unless I’m going to the shops or on the motorway and it’s a great combination for me personally.
I’ve used Cup1 &2 for 15 years on 911s and they were perfect, just don’t like them on the GT4 in anything but a hot dry day.
I found PS4S's great on my 981 GT4 although the handling does feel a little sharper on Cup 2s.
The convenience of not having to worry about rain and temperature with PS4S's on the road is worth it though IMO.
Twinfan said:
PS4Ss are available in N spec.
Totally recommended.
Thanks for confirming that Twinfan, my car had an ageing set of Cup 2s on when I bought it a year ago and I ran them all last year. The last owner also kindly supplied a nearly new set of P4s as part of the deal, but they are non N rated but fine as I rarely go over 140 on the public road ! I intend to stick to them when changing but will then get N rated .
