satchurator
Well-Known Member
- Joined
- Mar 22, 2021
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- Location
- Massachussets, USA
- Vehicles
- MY22 CT4
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- #1
I purchased the Porsche Performance Roof Box before I received my CT4 (unboxing thread here). After seeing the issues @Swissbob experienced with his OEM roof bars, I decided to get the Thule WingBar Edge 9585B roof bars.
After two winter road trips, I've been experiencing a frustrating noise issue. Its not the wind rush / whistling you would expect from roofbars/boxen, rather its an intense buzzing noise that starts above 65 mph (~105 kph) and gets more intense with increasing speed. It was quite unbearable.
There was no visible shaking, so after double checking the torquing of the clamps and making sure nothing else was loose, I eventually narrowed it down to the front edge 'nose' of the box, where the upper and lower parts of the clamshell come together. It seems as though the airflow is such that its pushing through that front nose junction and causing them to chatter intensely.
Given that the press release for the Performance Roof Box was touting wind tunnel tests at up to 120mph, I'm pretty disappointed. However, I'm inclined to attribute the problem to a combination of the roof box and the Thule WingBars together. The Thule WingBars sit lower than the OEM bars, closer to the panoramic glass surface. Also, where the OEM bars have compensated height such that the PPRB would sit perfectly horizontally, the Thule WingBars are not height compensated. So on top of the WingBars, the PPRB is not perfectly horizontal - its flat underside is at about 3º to the horizontal.
I am very reluctant to switch to the Porsche OEM bars and risk trashing my roof rails. So my low-tech solution is to add three strips of black electrical tape! With three strips of tape at the front, the box is quite silent.
Sharing this as an FYI to other folks who have or are considering this combination of accessories. I'm interested to hear if anybody else is having noise issues with their Porsche Performance Roof Box, regardless of how its mounted.
P.S. Any suggestions on how to easily share an audio clip without creating accounts elsewhere?
After two winter road trips, I've been experiencing a frustrating noise issue. Its not the wind rush / whistling you would expect from roofbars/boxen, rather its an intense buzzing noise that starts above 65 mph (~105 kph) and gets more intense with increasing speed. It was quite unbearable.
There was no visible shaking, so after double checking the torquing of the clamps and making sure nothing else was loose, I eventually narrowed it down to the front edge 'nose' of the box, where the upper and lower parts of the clamshell come together. It seems as though the airflow is such that its pushing through that front nose junction and causing them to chatter intensely.
Given that the press release for the Performance Roof Box was touting wind tunnel tests at up to 120mph, I'm pretty disappointed. However, I'm inclined to attribute the problem to a combination of the roof box and the Thule WingBars together. The Thule WingBars sit lower than the OEM bars, closer to the panoramic glass surface. Also, where the OEM bars have compensated height such that the PPRB would sit perfectly horizontally, the Thule WingBars are not height compensated. So on top of the WingBars, the PPRB is not perfectly horizontal - its flat underside is at about 3º to the horizontal.
I am very reluctant to switch to the Porsche OEM bars and risk trashing my roof rails. So my low-tech solution is to add three strips of black electrical tape! With three strips of tape at the front, the box is quite silent.
Sharing this as an FYI to other folks who have or are considering this combination of accessories. I'm interested to hear if anybody else is having noise issues with their Porsche Performance Roof Box, regardless of how its mounted.
P.S. Any suggestions on how to easily share an audio clip without creating accounts elsewhere?