[718S]

Ok, so I thought it was just bad roads that contributed to all the clanking and banging from loose gravel and pebbles under the car and wheel wells. It's not just the roads... or in my head! A buddy of mine was jogging on a road that was scarified (digging up for new top layer of pavement) he noticed a BMW went by.. no noise... then a Porsche and he told me he almost laughed out loud as all he could hear was rocks/pebbles clanking underneath that car.

I did a quick search and it appears the some Porsches (991s as example... and 718s) indeed have little protection or insulation under the wheel wells and this is definitely more of an issue for 'us'. My car is new so I haven't rolled under to see what it's like but there has to be a way to quiet this down? It's so **** annoying. I know @Viffermike had a post mentioning this somewhere. How can you guys ignore this? It's more prevalent on side streets but it's so nasty.

 

[RussellHodgson]

It is the sticky tires. They grab debris and throw it into the wheel wells. If you put on winter tires you'll notice the noise is much reduced.


I avoid gravely roads if possible. Any road that is being repaved I definitely avoid until they are done.

 

[Fume]

Definitely noticed this too. My BMW 128i had the same tires as my cayman gts, that is Michelin PS 4S. So the tire should be about equal amount of stickiness, yet the cayman definitely has noticeably more noise from gravel or whatever hitting the wheel wells. Although one thing that's different is the Cayman has much wider tires (265 vs 225 rears, 235 vs 225 fronts).

That said, it doesn't really bother me. I'm guessing the cayman just has less noise isolation overall compared to my BMW.

 

[JazzCatGab]

The noise seemed to bug me more in the beginning of owning my Cayman, but somehow, knowing that this same activity is happening in most every car and that I'm also benefiting from the lack of insulation that is used to deaden that sound affirms for me that my car is as light as it can be with the features it has. Would I trade the electromagnetic adjusters for my motor mounts and suspension for a quieter ride? I think not. I am the king of rationalization!

 

[718S]

Honestly- this is the most beautiful car I've ever owned. I try not to get too OCD about things and just enjoy driving it but the rattle can sounds make me a little crazed. Oh and now I got a tiny chip above my headlight... got to get touch up paint now to stay ahead. LOL

 

[RetXpres]

I have never had a car kick gravel up as much as my Boxster. I drive so slow on my block not to kick it up. Once on the main roads this is not an issue. Kicking up the gravel is it doing any damage to the paint or is just going around the wheel wells?

 

[718S]

I have never had a car kick gravel up as much as my Boxster. I drive so slow on my block not to kick it up. Once on the main roads this is not an issue. Kicking up the gravel is it doing any damage to the paint or is just going around the wheel wells?

Well that's my concern... I'm sure it's not ideal... never mind the rocks that are likely to kick up and hit the rocker panels, rear quarter...

 

[MLJJ]

This will drive you all crazy. My house is about 1/4 mile from a sealed and maintained road. Access to my house requires I drive on asphalt millings (recycled road material). Imagine driving on loose, pea-sized rocks. Yeah, I hear those stones rattling about every trip, but it is what it is. Once I get to the sealed road I go slow for a bit to throw most of the rocks from the tread. No stone chips yet :|

 

[4802]

This will drive you all crazy. My house is about 1/4 mile from a sealed and maintained road. Access to my house requires I drive on asphalt millings (recycled road material). Imagine driving on loose, pea-sized rocks. Yeah, I hear those stones rattling about every trip, but it is what it is. Once I get to the sealed road I go slow for a bit to throw most of the rocks from the tread. No stone chips yet :|

If it's as bad as that then I'd suggest you get down & check on top of your suspension arms from time to time. You'll be surprised just what can collect on top of those arms & once there because of the raised sides it has a horrible habit of staying there.

 

[Beardy]

This will drive you all crazy. My house is about 1/4 mile from a sealed and maintained road. Access to my house requires I drive on asphalt millings (recycled road material). Imagine driving on loose, pea-sized rocks. Yeah, I hear those stones rattling about every trip, but it is what it is. Once I get to the sealed road I go slow for a bit to throw most of the rocks from the tread. No stone chips yet :|

I live on a farm and have a similar scenario to yours except sometimes I also end up with cow shite on the side of mine