Cayman Tyre Replacement
Discussion
Tires? In Lancashire?
Well it depends what you want from tyres, but this is worth a read/watch (that's to everyone of course
)
https://www.tyrereviews.com/Article/2022-Tyre-Revi...
Well it depends what you want from tyres, but this is worth a read/watch (that's to everyone of course
)https://www.tyrereviews.com/Article/2022-Tyre-Revi...
Sorry OP to hijack your thread but my CGTS 4.0 came with P Zero's from new. The rears are not far off needing changing but the fronts still have plenty of life. The car is used mostly for touring and is never tracked. What's the opinion on putting MPS4S on the rear and sticking with the P Zero's on the front until they need replacing?
I had PZero N0 20's for a year from 2015 - awful. Pirelli inspected and they turned out to be faulty with cracking in tread and sidewall.
Replaced all round with GY F1 A2 as I had these on my TTS and found them good. They were but...
The Goodyear fronts failed MOT in 2020 due to slits all around the inside near the rim. GY inspected and found to be faulty.
Replaced with PS4S all round. No problems with these. They seem to give a firmer ride than the GYs which were fabled to have soft sidewalls.
Next change I will stick with PS4S but would return to GYs if I could trust them. A newer version than A2 may be more reliable but then I can't say how the ride would be.
My conclusion - stick with PS4S, although my tyre retailer of 25 years says Michelin have the most returns of all the tyres they sell. However he and his wife love the PS4S and found them way better than every other brand when invited to a blind tyre test on track a few years back.
Replaced all round with GY F1 A2 as I had these on my TTS and found them good. They were but...
The Goodyear fronts failed MOT in 2020 due to slits all around the inside near the rim. GY inspected and found to be faulty.
Replaced with PS4S all round. No problems with these. They seem to give a firmer ride than the GYs which were fabled to have soft sidewalls.
Next change I will stick with PS4S but would return to GYs if I could trust them. A newer version than A2 may be more reliable but then I can't say how the ride would be.
My conclusion - stick with PS4S, although my tyre retailer of 25 years says Michelin have the most returns of all the tyres they sell. However he and his wife love the PS4S and found them way better than every other brand when invited to a blind tyre test on track a few years back.
CardiffTam said:
Sorry OP to hijack your thread but my CGTS 4.0 came with P Zero's from new. The rears are not far off needing changing but the fronts still have plenty of life. The car is used mostly for touring and is never tracked. What's the opinion on putting MPS4S on the rear and sticking with the P Zero's on the front until they need replacing?
An OPC may say this is against the new car warranty rules. Check with them. But I personally wouldn't run different tyres on different axles in any case and your OPC will probably advise the same even if not against warranty rules.DJMC said:
An OPC may say this is against the new car warranty rules. Check with them. But I personally wouldn't run different tyres on different axles in any case and your OPC will probably advise the same even if not against warranty rules.
Thanks for the response. It did cross my mind regarding warranty. Think I will change all 4 corners.CardiffTam said:
It did cross my mind regarding warranty. Think I will change all 4 corners.
If it is a new car it wouldn't take long to find out Porsche's take on it warranty wise.But given that they are two different sized tyres front and back anyway, only two driven so different uses, they would all be to the correct spec N? I would have no problem with doing what you are suggesting. There is probably more difference between new(f) v old(r) tyres of the same make on one car anyway.
Twinfan said:
981Boxess said:
There is probably more difference between new(f) v old(r) tyres of the same make on one car anyway.
Not so sure about that! P-Zeros vs PS4Ss are night and day different in feel to me.About 12 years ago the EU banned the use of the chemicals that preserve the compound of tyres over time. The manufacturers didn't put up much of a fight because overnight it made them more money, but it was a game changer from the point of view of tyres going off.
This made the storage of tyres and the supply chain much more critical, the majority of retailers do not store tyres properly (temp/humidity). Now no doubt somebody will be saying what happens when they are on the car, I will come back to that.
If you have your tyres fitted at a Pirelli performance centre, there are not that many, the tyres will be the best you can buy because the storage/supply is strictly controlled. If you go to a normal tyre dealer if they have them in stock, they will almost certainly have stored them wrong, maybe even for a long time, if they ordered them in from a wholesaler that makes it worse.
The DOT number should be the same on both tyres on an axle but even that isn't the whole story because the batch number dictates the compounds, the DOT number is only a rough guide of when they were made. No two batches are the same compound, not miles out, but not the same.
Now obviously if Stuart in Glasgow speaks to Pierre in Cannes about their one year old Boxster tyres they will have found differences in how they have found their tyres. One may have a garage, the other may not, one will have had sun, the other will have had wind and rain. So the two sets of tyres made the same day in the same factory are now completely different a year later. But one will read on PH that Michelin are better than Pirelli and that is what they will go out and buy next time. Tyre A may age better than tyre B, so at what age, point in time would you like to compare their performance, new, a month later, a year later?
There is more to it than the above, we spoke for over an hour about this but the point I am/he was making is that no two sets of tyres of the same make are the same and from the day they leave the factory that difference gets greater. In short you could well have taken a set of brand new Pirellis off and replaced them with brand new Michelins and noticed the difference straight away, equally someone else doing the opposite could say the same. Not saying you are wrong, just sharing what someone who is an expert on the subject shared with me, make of that what you will. No doubt a retired milkman from Skegness will soon be on telling me why the bloke from Pirelli is wrong and he knows better.
This guy happened to be in my area and I arranged for him to come to me to check my tyres, they had micro cracking, they were not faulty, the cracks are entirely related to the above, which is why he explained the above and they do not affect the integrity/safety of the tyres in any way.
Hence my original response above.
Orangecurry said:
Tires? In Lancashire?
Well it depends what you want from tyres, but this is worth a read/watch (that's to everyone of course )
https://www.tyrereviews.com/Article/2022-Tyre-Revi...
Really interesting, thanks for sharing. Well it depends what you want from tyres, but this is worth a read/watch (that's to everyone of course
)https://www.tyrereviews.com/Article/2022-Tyre-Revi...
My first 718 Cayman came on 18" P Zeroes, which to be honest I thought were pretty OK, nothing special, but then I wasn't racing the car, I was commuting and doing some motorway driving. I fitted Pirelli Sotto Zeros for winter, and they were really good, especially in the snow.
New 718 Cayman last year came with 18" Eagle F1s, but I changed over to a new set of Sotto Zero before the car hit the road, as it was an early December collection (and yes, also in Lancashire...
). I had intended to fit the Eagle F1s last weekend, but then noticed we had some sub-zero and snow forecast for last week. The forecast was correct, and the "winters" remained the right choice.I'll check the weather forecast on Sunday, and hopefully within the next couple of weeks can report back on whether Eagle F1s suit the 718 much better than P Zeroes as everyone says. I certainly never found P Zeroes to be as horrendous as popular internet wisdom has it. Maybe low expectations, but I have a set for my 981 GT4. On wet (often cold) Lancashire roads they are lot more forgiving than the PS Cup 2s that go on for track days.
Can only agree with the points made about production batches having a really major effect on tyre performance nowadays. I am a keen Rotax Max kart racer, and there can up to be few tenths of difference in lap time, even with very recent production "control" tyres nowadays. Occasionally gambling on getting a third race meeting from a set of tyres can pay off in a big way, because a good old set is suddenly better than the latest production batch. More often than not it's the other way around by the final race of the day though.
Liam
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