callahan
Totally Hooked
As mentioned on the Sound Generator thread, I seem to have a solution for the noisy front end.
I do a reasonable amount of mileage and unfortunately a lot of that is on our motorways and dual carriageways that can be a bit noisy.
There is always going to be tyre noise with cars like ours, but I felt that the noise I could hear didn't sound like it was coming from the tyres, but sounded almost like a bearing at the front of the car. This had been driving me potty for a while, until a conversation with fellow man-of-great-taste (and Grey GR86 owner) @Banksy . He had taken his car to the guys at https://www.cambridgeautosound.com/ to have the speakers upgraded and some sound deadening added.
While he was testing the car he heard the same noise that I could and he came to the conclusion (after removing them and driving it) that the front strut braces were causing it - they're hollow so end up taking vibration from the strut towers and transmitting it to the front bulkhead and it seemed to be around the 200hz region.
I work with audio stuff (expensive Home Cinema speakers primarily) so any random noises annoy me way more than they should, and 200hz is in the vocal range so is more likely to dominate over other noises, so I had to do something about it.
I had a couple of these feet lying round, they're designed to isolate subwoofers from the floor so I thought they'd be a good option:
I cut them in half lengthways as they were too thick to fit, then put a notch in opposite sides to fit around the mounting bolts and fit them between each end of the strut braces and the body / bulkhead, like this:
It took longer to cut the foam in half than it did to fit it, so it's a very easy change. I drove to Leeds and York last week and didn't notice the drone any more, so I'd say it worked and I can now start to obsess about something else instead
This is the stuff I used, but I had convenient round bits: https://vibratec.se/product/regufoam-vibration-510-plus/
Hope this is of use to someone.
I do a reasonable amount of mileage and unfortunately a lot of that is on our motorways and dual carriageways that can be a bit noisy.
There is always going to be tyre noise with cars like ours, but I felt that the noise I could hear didn't sound like it was coming from the tyres, but sounded almost like a bearing at the front of the car. This had been driving me potty for a while, until a conversation with fellow man-of-great-taste (and Grey GR86 owner) @Banksy . He had taken his car to the guys at https://www.cambridgeautosound.com/ to have the speakers upgraded and some sound deadening added.
While he was testing the car he heard the same noise that I could and he came to the conclusion (after removing them and driving it) that the front strut braces were causing it - they're hollow so end up taking vibration from the strut towers and transmitting it to the front bulkhead and it seemed to be around the 200hz region.
I work with audio stuff (expensive Home Cinema speakers primarily) so any random noises annoy me way more than they should, and 200hz is in the vocal range so is more likely to dominate over other noises, so I had to do something about it.
I had a couple of these feet lying round, they're designed to isolate subwoofers from the floor so I thought they'd be a good option:
I cut them in half lengthways as they were too thick to fit, then put a notch in opposite sides to fit around the mounting bolts and fit them between each end of the strut braces and the body / bulkhead, like this:
It took longer to cut the foam in half than it did to fit it, so it's a very easy change. I drove to Leeds and York last week and didn't notice the drone any more, so I'd say it worked and I can now start to obsess about something else instead
This is the stuff I used, but I had convenient round bits: https://vibratec.se/product/regufoam-vibration-510-plus/
Hope this is of use to someone.
