The M20 in Kent

Wheels, Tyres, Suspension, Chassis, Issues and Fixes
Post Reply
JJay
Posts: 16
Joined: Tue Nov 29, 2016 8:45 pm

The M20 in Kent

Post by JJay » Fri Jul 07, 2017 3:39 pm

I've driven to the tunnel / channel ports many times over the years in a variety of cars too numerous to mention. Whilst the road noise from the cheap concrete surface has always proved annoying, rumbling and thuds from the expansion joints, it was nothing compared to the first time in the Macan last week.

21" turbo wheels on a GTS, it's excruciating at legal speeds. A sort of high pitched, high frequency resonance that was like a dentist's drill for mile after mile.

Hs anyone experienced similar? Any tips to deal with it apart from pressing the fast pedal?


User avatar
happy days
Posts: 880
Joined: Fri Jan 13, 2017 12:33 pm
Location: Warrenpoint, N Ireland

Re: The M20 in Kent

Post by happy days » Fri Jul 07, 2017 3:51 pm

Fly? :lol: :lol: :lol:
Macan S D
718 S


User avatar
Wing Commander
Posts: 9816
Joined: Tue Oct 06, 2015 5:43 pm
Location: Swindon

Re: The M20 in Kent

Post by Wing Commander » Fri Jul 07, 2017 3:55 pm

Yep. I regularly drive on the concrete sections of the M25. There seems to be a certain speed that generates the most road/tyre noise, somewhere in the mid 70s mph. Try going a bit slower, or a bit faster, and that should help a bit. :geek: Or turn the music up! :lol:
Sold: 2016 Rhodium Silver Macan 2.0
Sold: 2013 Platinum Silver 911 (991.1) C2
Mine: 2017 Carmine Red Panamera 4 http://www.porsche-code.com/PJPWMYE2


goron59
Posts: 5234
Joined: Sun Aug 09, 2015 10:15 am

Re: The M20 in Kent

Post by goron59 » Fri Jul 07, 2017 4:07 pm

Yep, on both my Macans (one 21", one 20", both on air) the NVH on that stretch is just awful. Never experienced anything that bad in other cars/roads.


User avatar
Pete
Posts: 328
Joined: Thu May 25, 2017 1:43 pm
Location: Wokingham

Re: The M20 in Kent

Post by Pete » Fri Jul 07, 2017 4:10 pm

There's parts of the motorways in Japan that play particular tunes through the tire noise. They did that to encourage people to drive at the correct speed. Really good idea.

I remember Jeremy Clarkson attempting to reverse over one of those strips to see if there was a hidden message from Satan.


User avatar
Paul
Posts: 5790
Joined: Fri Sep 05, 2014 6:19 pm
Location: Bristol
Contact:

Re: The M20 in Kent

Post by Paul » Fri Jul 07, 2017 4:30 pm

Any car I've driven (including LCVs ) around that section makes the same noise - the more tyre footprint you have on the road, the louder the noise!
1st Sapphire Blue SD
viewtopic.php?f=23&t=1986

Current Sapphire GTS
viewtopic.php?f=23&t=4296


goron59
Posts: 5234
Joined: Sun Aug 09, 2015 10:15 am

Re: The M20 in Kent

Post by goron59 » Fri Jul 07, 2017 6:05 pm

Paul wrote:
Fri Jul 07, 2017 4:30 pm
Any car I've driven (including LCVs ) around that section makes the same noise - the more tyre footprint you have on the road, the louder the noise!
Yea, but my R8 wasn't too bad that made a Macan look like a 2CV!


User avatar
Paul
Posts: 5790
Joined: Fri Sep 05, 2014 6:19 pm
Location: Bristol
Contact:

Re: The M20 in Kent

Post by Paul » Fri Jul 07, 2017 7:58 pm

goron59 wrote:
Fri Jul 07, 2017 6:05 pm
Paul wrote:
Fri Jul 07, 2017 4:30 pm
Any car I've driven (including LCVs ) around that section makes the same noise - the more tyre footprint you have on the road, the louder the noise!
Yea, but my R8 wasn't too bad that made a Macan look like a 2CV!
Ah, or was it just that the V8 sitting just behind your head was all you were listening to...?!😉
1st Sapphire Blue SD
viewtopic.php?f=23&t=1986

Current Sapphire GTS
viewtopic.php?f=23&t=4296


goron59
Posts: 5234
Joined: Sun Aug 09, 2015 10:15 am

Re: The M20 in Kent

Post by goron59 » Fri Jul 07, 2017 8:22 pm

Paul wrote:
Fri Jul 07, 2017 7:58 pm
goron59 wrote:
Fri Jul 07, 2017 6:05 pm
Paul wrote:
Fri Jul 07, 2017 4:30 pm
Any car I've driven (including LCVs ) around that section makes the same noise - the more tyre footprint you have on the road, the louder the noise!
Yea, but my R8 wasn't too bad that made a Macan look like a 2CV!
Ah, or was it just that the V8 sitting just behind your head was all you were listening to...?!😉
Not at all. The Humber bridge at exactly 45mph in the R8 was a comedy of road noise. Especially with dampers in sport mode :-)


Post Reply

Return to “Wheels, Tyres, Suspension”


Who is online

Users browsing this forum: No registered users and 1 guest