GR86 Thrumming/drone noise front suspension

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cc3

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Anyone get a droning/thrumming noise from front suspension. Not the usual tyre noise
 
Yep! I find it a harmonic noise that gets louder at motorway speeds. Really resonates on rough concrete roads above the usual tyre roar. Its possible its a mixture of things, 18 inch wheels with low profile tyres along side PS4's which are known to be noisy.. I've played around with tyre pressures and rotated wheels to see if it would help with no change. I'm going to mention it when the car goes in for its parking sensors to be fitted in a couple of weeks and get a 2nd opinion.
 
RDMsport said:
Yep! I find it a harmonic noise that gets louder at motorway speeds. Really resonates on rough concrete roads above the usual tyre roar. Its possible its a mixture of things, 18 inch wheels with low profile tyres along side PS4's which are known to be noisy.. I've played around with tyre pressures and rotated wheels to see if it would help with no change. I'm going to mention it when the car goes in for its parking sensors to be fitted in a couple of weeks and get a 2nd opinion.
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Agree that’s the noise. I have done the same with tyre pressures but no difference
 
cc3 said:
Agree that’s the noise. I have done the same with tyre pressures but no difference
Click to expand...
Glad I'm not the only one getting it, its hard to ignore on the motorway as even turning the stereo up doesn't help much due to the frequency of it. I'm on 1500 miles now and its not changed in that time, I'll let you know what the dealer says about it.
 
Thought I'd try to upload a clip of the noise. You need headphones to hear it but there's a distinct background noise like a harmonic chirping. Sorry if this means anyone else notices it 😂 Sound clip

This was from 30-50 mph

I'll try and get a better clip when coasting.
 
Anyone ever find a solution here? I got a 2024 86 Premium with the same noise. The dealer kept telling me that the summer tires were just 'loud", so fine, I swapped out the Michelin PS4's to Continental DWS tires, and still no difference.
 
There is a general consensus that a lot of the tyre roar is transmitted from the struts through to the bulkhead via the 2 diagonal braces in the engine bay. this combined with UHP tyres and a sparing use of sound deadening and you've got a noisy little car!
 
I have used PS4 on a different (but also sporty) car and found them to be the quietest so it's no surprise that changing tyres makes little difference
 
I owned an Elise for 5 years. The GR is luxury in comparison. I can live with road noise as it’s a weekend / summer toy.
 
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