Brian_Innes
Member
The BMC air filter after 8k miles showing the dirty working area within the airbox.
Brian
Brian
My new 982 718 Cayman S PDK
- Thread starter Brian_Innes
- Start date
AndrewT
Member
Motorhead said:
True Jeff, but the cotton filter Brian removed looked a bit dirty to me and I wondered whether he would have been happy to leave it there, uninspected and not cleaned, for 6-years/60,000 miles, bearing in mind the difficulty in accessing it on the 718 Cayman.
Andrew.
Blink982
New member
BJ Innes said:
I guess the Techs that recently worked on my car were having a bad day as they managed to damage four separate pieces of trim. [
]I have thoroughly enjoyed your journey through your ownership of your 718S and am looking forward to hearing how you get on with the GTS. You've certainly chosen the best colour/wheels combo!!
AndrewT said:
Agreed Andrew. I was merely pointing out that that is Porsche's recommended interval, presumably based upon extensive development work in different environmental conditions. One has to assume that they deem its efficiency adequate in terms of filtration and flow to be acceptable for 60,000 miles. Of course, like Brian most of us would think that mileage somewhat excessive and choose to replace the filter sooner.
Jeff
Brian_Innes
Member
It is my choice to clean and service the air filter annually. I've always done this on all my cars.
If you care to read the instructions on your Dyson vacuum cleaner it recommends cleaning the air filter every month! Why Porsche recommend leaving this vital service component for 60,000 miles or 6 years before servicing is beyond my comprehension.
On checking back my service records the BMC cotton air filter shown has actually done 9000 miles, almost exactly the same as the OE paper filter and in a similar condition. After careful vacuuming, the OE paper filter was perfectly ok to be returned to service.
Brian
If you care to read the instructions on your Dyson vacuum cleaner it recommends cleaning the air filter every month! Why Porsche recommend leaving this vital service component for 60,000 miles or 6 years before servicing is beyond my comprehension.
On checking back my service records the BMC cotton air filter shown has actually done 9000 miles, almost exactly the same as the OE paper filter and in a similar condition. After careful vacuuming, the OE paper filter was perfectly ok to be returned to service.
Brian
Brian_Innes
Member
As is my usual winter maintenance routine I removed the front wheels for proper cleaning, conducted a brake and tyre inspection, and also cleaned the brake callipers and drilled disc holes. All is in perfect order I am pleased to report. After 9000 miles of touring including 5 track days, and high speed sessions on the autobahns of Germany, the Michelin PS4S N0 tyres have stood up remarkably well as the photo below of the front tyres shows. Tread depth across the tyres is evenly worn at 6mm left front and 7mm right front. On the left side of the car the tyres show slight graining on the outer shoulders as you would expect from track day use. The rear tyres are showing a similar wear pattern to the fronts, and also 6- 7mm of tread depth remaining.
It is well reported elsewhere in this forum that wheel alignment geometry and tyre pressures are crucial. Not only for even tread wear, but also for chassis handling and steering feel. The wheel alignment geometry is set to my preferences by my local Michelin tyre specialist GT Tyres of Forres. On my car I have managed to set the front camber to almost 1 and a half degrees of negative, by maximising the adjustment on the front suspension top mount slots. Front total toe is zero.
For my driving style, these settings works perfectly. Those of you who have watched the Oulton Park video posted recently on this thread, will see that my driving style is closer to that of The Stig, rather than the aggressive power sliding showboating amply demonstrated by other members of the Top Gear team. I don't wish this to sound boastful, I'm only illustrating by example my approach to high performance driving techniques. Track driving for me all about smoothness and carrying speed into and through the corners using lines of least resistance. Not only is this technique faster, it also keeps the tyres within their grip performance parameters, consequently the tyres last longer.
I am naturally hoping that my new 718 CGTS will arrived shod with Michelin tyres. This is far from certain of course, as all the 718 Caymans I have seen in showrooms recently have Pirelli P-Zero N1 tyres fitted. However futile, I've lodged a special request on my new car order for Michelin tyres to be factory fitted. My philosophy in life has always been "if you don't ask you don't get". We shall see if luck is on my side when my car is delivered.
Brian
It is well reported elsewhere in this forum that wheel alignment geometry and tyre pressures are crucial. Not only for even tread wear, but also for chassis handling and steering feel. The wheel alignment geometry is set to my preferences by my local Michelin tyre specialist GT Tyres of Forres. On my car I have managed to set the front camber to almost 1 and a half degrees of negative, by maximising the adjustment on the front suspension top mount slots. Front total toe is zero.
For my driving style, these settings works perfectly. Those of you who have watched the Oulton Park video posted recently on this thread, will see that my driving style is closer to that of The Stig, rather than the aggressive power sliding showboating amply demonstrated by other members of the Top Gear team. I don't wish this to sound boastful, I'm only illustrating by example my approach to high performance driving techniques. Track driving for me all about smoothness and carrying speed into and through the corners using lines of least resistance. Not only is this technique faster, it also keeps the tyres within their grip performance parameters, consequently the tyres last longer.
I am naturally hoping that my new 718 CGTS will arrived shod with Michelin tyres. This is far from certain of course, as all the 718 Caymans I have seen in showrooms recently have Pirelli P-Zero N1 tyres fitted. However futile, I've lodged a special request on my new car order for Michelin tyres to be factory fitted. My philosophy in life has always been "if you don't ask you don't get". We shall see if luck is on my side when my car is delivered.
Brian
AndrewCS
Active member
That`s impressive tyre performance vs. wear rate Brian.
My CS has the same PS4S wear after 6,000 miles road `only` miles, albeit Highland roads []
Whilst our cars are quite different it just shows how well they are designed and `fit for purpose` ... and both set up by GT Tyres []
Hope that you get the Michelin`s on the CGTS, only current showroom cars that I have seen them on are a few 991`s.
My CS has the same PS4S wear after 6,000 miles road `only` miles, albeit Highland roads [
]Whilst our cars are quite different it just shows how well they are designed and `fit for purpose` ... and both set up by GT Tyres [
]Hope that you get the Michelin`s on the CGTS, only current showroom cars that I have seen them on are a few 991`s.
I don't do the same sort of driving as you (mostly touring in the UK and Europe, driving events etc) but both my previous cars came with Michelins and I was happy with them. My current car came with P Zero N0s on 20 inch wheels. I didn't think they were as grippy in damp conditions as previous Michelins, and seemed to have sidewalls that crashed into every pothole (another story). I recently replaced the fronts with N1s - they seem to give a more supple ride, don't crash into every pothole, and bizarrely and for reasons I can't fathom, don't hop sideways across the tarmac at full lock - something every Porsche has done in my experience. If yours come with N1s, it will be interesting to see how you get on with them.
Brian_Innes
Member
Brian J, and Ray,
I have absolutely no issues with front end "crabbing" on full lock, either with the original P-Zero N1's, or the current Michelin PS4S N0's. Wheel alignment geometry may be a contributor in this regard.
I have to say the P-Zero N1's are a huge improvement in ride and grip over the earlier N0 version. The main problem I had with the N1's was they seemed "stretched" on the wider 8.5J and 10.5J 20" Carrera Sport wheels as fitted to my 718CS. The rim protection rib on the sidewalls rendered useless as the rims protruded proud of the tyres. The Michelin PS4S N0 sidewalls are of a completely different profile to the P-Zero N1 with the rim protection rib overlapping the wheel rim as it is designed to do, which is to protect the rim.
This latter statement I have used in my plea to Porsche to request Michelin PS4S N0 tyres on my new GTS, as I have specced the same 8.5J and 10.5J Carrera Sport wheels. I considered it worth a try.
Brian
I have absolutely no issues with front end "crabbing" on full lock, either with the original P-Zero N1's, or the current Michelin PS4S N0's. Wheel alignment geometry may be a contributor in this regard.
I have to say the P-Zero N1's are a huge improvement in ride and grip over the earlier N0 version. The main problem I had with the N1's was they seemed "stretched" on the wider 8.5J and 10.5J 20" Carrera Sport wheels as fitted to my 718CS. The rim protection rib on the sidewalls rendered useless as the rims protruded proud of the tyres. The Michelin PS4S N0 sidewalls are of a completely different profile to the P-Zero N1 with the rim protection rib overlapping the wheel rim as it is designed to do, which is to protect the rim.
This latter statement I have used in my plea to Porsche to request Michelin PS4S N0 tyres on my new GTS, as I have specced the same 8.5J and 10.5J Carrera Sport wheels. I considered it worth a try.
Brian
Brian_Innes
Member
Booked my car in to OPC Aberdeen for it's 2 year/20,000 mile service in early December.
I asked if the recent letter received from Porsche Reading about fitting protective grills to the side air intakes, was a mandatory requirement or merely a recommendation. The service manager advised that should I decline the offer, and any material subsequently found its way into the air duct causing damage, it would not be covered by the warranty.
I also asked if the engine air filter installation was part of the 2 year service schedule. I was told it wasn't. My reason for asking was I didn't want my service visit delayed by the extra time this complicated, and risky process would entail. Especially as I had only recently successfully completed this delicate task myself without damaging any of the plastic trim.
The fitting of the aforementioned protective grills involve checking the side air intake ducts for debris. I can honestly say that's a lot easier than checking the engine compartment air box for debris! So, I have reluctantly agreed to have the protective side intake grills fitted. The outer grills on my car are painted, so they had better be careful when removing them........ Photos will be taken beforehand.
It will be interesting to see if my new 2019 718 CGTS comes factory fitted with the protective side intake grills.
Brian
I asked if the recent letter received from Porsche Reading about fitting protective grills to the side air intakes, was a mandatory requirement or merely a recommendation. The service manager advised that should I decline the offer, and any material subsequently found its way into the air duct causing damage, it would not be covered by the warranty.
I also asked if the engine air filter installation was part of the 2 year service schedule. I was told it wasn't. My reason for asking was I didn't want my service visit delayed by the extra time this complicated, and risky process would entail. Especially as I had only recently successfully completed this delicate task myself without damaging any of the plastic trim.
The fitting of the aforementioned protective grills involve checking the side air intake ducts for debris. I can honestly say that's a lot easier than checking the engine compartment air box for debris! So, I have reluctantly agreed to have the protective side intake grills fitted. The outer grills on my car are painted, so they had better be careful when removing them........ Photos will be taken beforehand.
It will be interesting to see if my new 2019 718 CGTS comes factory fitted with the protective side intake grills.
Brian
Steve Brookes
Moderator
Looking forward to hearing about the new journey Brian. Although most of your usage will be touring again it might be worth thinking about a second set of wheels shod with Cup 2 tyres for those summer track only trips. They would make a very capable car even more capable!
gtipirelli
Member
My side intake grills are being fitted Friday next week. My outer grills are also painted so will also ask them to be extra careful. I also have PPF applied to the side sills and rear wheel arch so another thing for me to point out to them
will let you know how it goes. My car is black so suspect the new inner grills will be almost invisible
will let you know how it goes. My car is black so suspect the new inner grills will be almost invisible
Brian_Innes
Member
Steve Brookes said:
Steve,
That thought has already crossed my mind.
Let me get my new car on the road first, run it in, let the suspension settle, get the wheel alignment geo set up. Maybe then, if I'm still fit and healthy, I'll consider the spare set of wheels and Cup 2 option. At my stage in life I take nothing for granted.
Brian
Back on the subject of air filters, here's an interesting recent article:
https://www.roadandtrack.com/car-culture/buying-maintenance/a25093373/high-performance-air-filters-tested/
Not particularly scientific but it does illustrate the - albeit small - potential advantage of so-called performance air filters.
Jeff
https://www.roadandtrack.com/car-culture/buying-maintenance/a25093373/high-performance-air-filters-tested/
Not particularly scientific but it does illustrate the - albeit small - potential advantage of so-called performance air filters.
Jeff
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