A couple of questions..
Discussion
Hi,
I've been the proud owner of a Cayman 718 S PDK for a week and good to read about other owners views and experiences. Really enjoying the car and quite a contrast to my previous car which was a Macan Turbo PP. A really great car, but not a sports car.
Would appreciate comment on:
Tyre noise, car is fitted with 20" wheels shod with Pirelli P Zero tyres. Tyre noise on smooth surfaces is noticeable but OK, but on coarse road surfaces the road roar is really pronounced. Any one have a view if this is down to the Pirelli tyres and would be better with a different brand, or it a feature of the car / wheel size?
When slowing down to / almost to a stop the gear change into 1st (PDK) is often quite rough / jerky both in 'normal' and 'sport'. By contrast all gear changes in the Macan also (PDK) were pretty much unnoticeable.
Input much appreciated.
I've been the proud owner of a Cayman 718 S PDK for a week and good to read about other owners views and experiences. Really enjoying the car and quite a contrast to my previous car which was a Macan Turbo PP. A really great car, but not a sports car.
Would appreciate comment on:
Tyre noise, car is fitted with 20" wheels shod with Pirelli P Zero tyres. Tyre noise on smooth surfaces is noticeable but OK, but on coarse road surfaces the road roar is really pronounced. Any one have a view if this is down to the Pirelli tyres and would be better with a different brand, or it a feature of the car / wheel size?
When slowing down to / almost to a stop the gear change into 1st (PDK) is often quite rough / jerky both in 'normal' and 'sport'. By contrast all gear changes in the Macan also (PDK) were pretty much unnoticeable.
Input much appreciated.
Can't help with the PDK, mine is a manual, but have to say 18" P Zeroes are pretty noisy on some surfaces in my base 718 Cayman. So probably nothing to do with size/profile, very likely to be tread/structure, and I'm likely to be getting Michelins of some form when the P Zeroes wear out.
Liam
Liam
Retired01 said:
Hi,
I've been the proud owner of a Cayman 718 S PDK for a week and good to read about other owners views and experiences. Really enjoying the car and quite a contrast to my previous car which was a Macan Turbo PP. A really great car, but not a sports car.
Would appreciate comment on:
Tyre noise, car is fitted with 20" wheels shod with Pirelli P Zero tyres. Tyre noise on smooth surfaces is noticeable but OK, but on coarse road surfaces the road roar is really pronounced. Any one have a view if this is down to the Pirelli tyres and would be better with a different brand, or it a feature of the car / wheel size?
When slowing down to / almost to a stop the gear change into 1st (PDK) is often quite rough / jerky both in 'normal' and 'sport'. By contrast all gear changes in the Macan also (PDK) were pretty much unnoticeable.
Input much appreciated.
I've been the proud owner of a Cayman 718 S PDK for a week and good to read about other owners views and experiences. Really enjoying the car and quite a contrast to my previous car which was a Macan Turbo PP. A really great car, but not a sports car.
Would appreciate comment on:
Tyre noise, car is fitted with 20" wheels shod with Pirelli P Zero tyres. Tyre noise on smooth surfaces is noticeable but OK, but on coarse road surfaces the road roar is really pronounced. Any one have a view if this is down to the Pirelli tyres and would be better with a different brand, or it a feature of the car / wheel size?
When slowing down to / almost to a stop the gear change into 1st (PDK) is often quite rough / jerky both in 'normal' and 'sport'. By contrast all gear changes in the Macan also (PDK) were pretty much unnoticeable.
Input much appreciated.
Tyre noise on coarse surfaces is an issue with all brands and sizes of tyre - but Goodyear F1s are said to be quieter than Pirellis. I can't confirm that, but the Goodyears are noticeably noisier on bump-thump. Point to note Pirellis come in 2 varieties marked N0 and N1 on the sidewalls. I've had both and the N1 is noticeably better all round - but no quieter on coarse surfaces. You'll almost certainly notice some tyre scrub on lock at low temperatures, and the only real solution is winter tyres, but N1 Pirellis are much better than N0s in that respect.
Re jerky gearchanges into first. Mine certainly isn't jerky - though it's not as silky smooth as other changes and is sometimes accompanied by a mild clunk. I'd get that checked out. There has been some talk of poor low speed fuelling which, in some cases, seems to be caused by a fault in variable valve timing, but again not an issue for me. I'd certainly take it up with the seller.
...... when I bought my Boxter 981 'S', it was fitted with Pirellis, and the noise from the rear tyres was untenable, especially as I was planning a 5000 mile European road trip! I had Goodyear F1's fitted, which cost me just over £700 and sold the Pirellis with 5/6mm of tread for £250. The difference was immense, the noise was far more acceptable, and "Scrub" on lock was non existent. It has started to "scrub" slightly when first setting off now, because the weather has been so cold, but nowhere near as bad as the Pirellis. I have covered 8000 miles on them now, and they have suffered very little wear!! HTH
Appreciate the replies.
Might take a drive to Bavaria in Jan. If I do I’ll fit some winter wheels / tyres. Be interesting to see if they’re any less noisy.
Doesn’t seem like a tyre swap would necessarily improve the situation. Expensive experiment anyway.
Not really bothered about the ‘scrub’ ,a feature of the steering geometry (Ackerman) masked better by some tyres than others.
Regarding the gear change I’ll visit OPC when I get chance.
Might take a drive to Bavaria in Jan. If I do I’ll fit some winter wheels / tyres. Be interesting to see if they’re any less noisy.
Doesn’t seem like a tyre swap would necessarily improve the situation. Expensive experiment anyway.
Not really bothered about the ‘scrub’ ,a feature of the steering geometry (Ackerman) masked better by some tyres than others.
Regarding the gear change I’ll visit OPC when I get chance.
Winter tyres are often quieter and more compliant, although some people fit smaller diameter wheels and higher profile tyres with winters.
As said above, the Goodyear Eagle F1s are recognised as being the quietest of the standard options. Look at the quoted noise levels on the tyre spec labels, or the Porsche Approved Tyre List. GYs are 67dB against Pirellis at 71dB. I believe noise levels rise on a 'logarithmic scale' (whatever that means), so 4dB would be quite noticeable.
As said above, the Goodyear Eagle F1s are recognised as being the quietest of the standard options. Look at the quoted noise levels on the tyre spec labels, or the Porsche Approved Tyre List. GYs are 67dB against Pirellis at 71dB. I believe noise levels rise on a 'logarithmic scale' (whatever that means), so 4dB would be quite noticeable.
The tyre noise is acceptable of some (smooth) surfaces and really quite bad on coarse surfaces. Wonder if the manufacturers noise rating will help in this situation. I'd be happy with Pirelli P Zeros if it wasn't for the coarse road noise. Since having the car I've discovered just how many of the local roads could be classified as coarse!
Previous Macan had 21" P Zeros and was fine wrt noise, but a different car with different suspension, so wonder how much is down to the tyre and how much due to the car / tyre interaction which might vary with different tyres.
If I knew fitting different tyres would solve this for me I'd do it, but don't want to conduct an expensive experiment which might not work.
Previous Macan had 21" P Zeros and was fine wrt noise, but a different car with different suspension, so wonder how much is down to the tyre and how much due to the car / tyre interaction which might vary with different tyres.
If I knew fitting different tyres would solve this for me I'd do it, but don't want to conduct an expensive experiment which might not work.
Retired01 said:
Appreciate the replies.
Might take a drive to Bavaria in Jan. If I do I’ll fit some winter wheels / tyres. Be interesting to see if they’re any less noisy.
I've just fitted a set of Pirelli Sottozero to my base Cayman for winter. They are quieter, and even at temperatures as high as 5 Celcius better in every way than the P Zeroes, especially on damp and greasy roads.Might take a drive to Bavaria in Jan. If I do I’ll fit some winter wheels / tyres. Be interesting to see if they’re any less noisy.
Liam
Koln-RS said:
Winter tyres are often quieter and more compliant, although some people fit smaller diameter wheels and higher profile tyres with winters.
As said above, the Goodyear Eagle F1s are recognised as being the quietest of the standard options. Look at the quoted noise levels on the tyre spec labels, or the Porsche Approved Tyre List. GYs are 67dB against Pirellis at 71dB. I believe noise levels rise on a 'logarithmic scale' (whatever that means), so 4dB would be quite noticeable.
Accepting that GYs are quieter than Pirellis the quoted noise figures are a very crude guide (if any guide at all) - they are measured outside the vehicle on a particular smooth surface. The difference between a coarse surface and a smooth one will be a lot more than 4db (which is noticeable but not vast). To put that into context a 10db change in volume is generally regarded as SUBJECTIVELY a doubling in volume (whereas you might think from the log scale that 3db was - in fact you would probably only just notice 3db). I would also add that GYs don't imo handle as well as PZero N1s, suffering from greater understeer, which I hate. I'm more tempted by Michelins when they become available in my size, but I don't have any info on noise. As said above, the Goodyear Eagle F1s are recognised as being the quietest of the standard options. Look at the quoted noise levels on the tyre spec labels, or the Porsche Approved Tyre List. GYs are 67dB against Pirellis at 71dB. I believe noise levels rise on a 'logarithmic scale' (whatever that means), so 4dB would be quite noticeable.
I would add that I have Dunlop winter tyres on - being a cheapskate I was tempted by the price. However, I wouldn't recommend them, they are noisy - and uncomfortable too which you wouldn't expect (they on 18" wheels rather than the 19s of my Pirellis)
Edited by bcr5784 on Sunday 3rd December 12:42
You would even notice a significant improvement if you just bought the same tyres new.
Older tyres have gone through a large number of heat cycles and this hardens the rubber over time, making them harder.
Eric the Car Guy explains it really well: https://www.youtube.com/watch?v=wggoyBrOVSA&t=...
Older tyres have gone through a large number of heat cycles and this hardens the rubber over time, making them harder.
Eric the Car Guy explains it really well: https://www.youtube.com/watch?v=wggoyBrOVSA&t=...
Retired01 said:
Hi,
I've been the proud owner of a Cayman 718 S PDK for a week and good to read about other owners views and experiences. Really enjoying the car and quite a contrast to my previous car which was a Macan Turbo PP. A really great car, but not a sports car.
Would appreciate comment on:
Tyre noise, car is fitted with 20" wheels shod with Pirelli P Zero tyres. Tyre noise on smooth surfaces is noticeable but OK, but on coarse road surfaces the road roar is really pronounced. Any one have a view if this is down to the Pirelli tyres and would be better with a different brand, or it a feature of the car / wheel size?
When slowing down to / almost to a stop the gear change into 1st (PDK) is often quite rough / jerky both in 'normal' and 'sport'. By contrast all gear changes in the Macan also (PDK) were pretty much unnoticeable.
Input much appreciated.
718S PDK, 5000 miles - tyre roar from the Pirelli's on rough surfaces is pronounced, characteristic of the tyres (little to do with the size). I'll be switching to another brand for this reason when the time comes, but expect and accept the roar will always be relatively loud on poorer surfaces whatever brand of tyres are fitted.I've been the proud owner of a Cayman 718 S PDK for a week and good to read about other owners views and experiences. Really enjoying the car and quite a contrast to my previous car which was a Macan Turbo PP. A really great car, but not a sports car.
Would appreciate comment on:
Tyre noise, car is fitted with 20" wheels shod with Pirelli P Zero tyres. Tyre noise on smooth surfaces is noticeable but OK, but on coarse road surfaces the road roar is really pronounced. Any one have a view if this is down to the Pirelli tyres and would be better with a different brand, or it a feature of the car / wheel size?
When slowing down to / almost to a stop the gear change into 1st (PDK) is often quite rough / jerky both in 'normal' and 'sport'. By contrast all gear changes in the Macan also (PDK) were pretty much unnoticeable.
Input much appreciated.
My 718S was exactly the same when new on the 2nd-1st change (Sport was a little worse)...sorted itself out all on its own and is now absolutely fine, assume it needed to go through a period of learning. Don't worry, your car's fine.
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