DuoRivian
Well-Known Member
- Joined
- Sep 3, 2023
- Threads
- 3
- Messages
- 1,651
- Reaction score
- 1,821
- Location
- California
- Vehicles
- Rivian R1T and an R1S
- Occupation
- IT
Thanks for the continued updates. I have added material in all five locations suggested and it has reduced my noise a little but it still becomes audible above 45 mph and at highway (70mph) I am at 75-78db.I've continued to go down the black hole of noise reduction. I've made more progress. I am also including a photo of when I was coming back and had a headwind that was at least 20 mph, frequently gusting to about 35-40 mph. After that, there is a video showing my Apple Watch indicating the sound level when there was a quartering tailwind/crosswind.
The immediate photos show the soundproofing I did. Earlier in this thread I showed where I was going to put some but I kept sizing up to where I am now. All this includes putting seals along the windshield and filling in almost every crack I could on the roof. They don't show the tubing I put inside the window seal to put more pressure on it.
1 - I think this was about 10mm and in the outer door seal.
2 - I think I settled on 6mm on the inner door seal and fan it parallel to the outer one, all the way from the mirror to the end. I kept them both a bit long in case they shrink in the heat.
3 - This was 10mm again looping around the ENTIRE door seal, tucked behind the original door seal.
4 - This was an 'L' shaped seal put on the inside of the original factory seal on the door frame.
5 - I don't know what size I ended up with here but this was put along the door frame and is heavy duty rubber. I ran it all the from from the edge of the door frame by the mirror, up across the top and all the way to the top of the rear door.
Compared to the runs I made yesterday, I've seen a 3db noise reduction on my apple watch. This is pretty substantial. Even at 70 mph, my cockpit is quieter. Road noise is now more evident as it isn't being drowned out by the wind. I ran over different pavement and the level jumped up 2 db while at the same speed.
FYI - I did have the AC running as well and the radio was off. I do have to say the door is more challenging to close but I think things will settle in after a bit. While the driver door is better, I will probably do the front passenger door too.
I ran up to 90 mph with the strong head winds, so that was airspeeds of 110-120+. It was definitely quieter than before. The wind buffeting is clearly subdued compared to before but I need to drive it more long-term to see how it is for me. I also need to glue some of the trim down as it was a press fit before and the high speed caused some of it come out and I hadn't glued it as I hadn't settled on the best size yet.
I still think it is total BS I need to do something like this. From what I've read, I think I've gone way beyond what anyone else has done and chased some new areas as well. The buffeting is still there, but it may be livable (I hope). Now the road noise is clearly evident. I think it needs felt in the wheel wells but I don't think I am going down that rabbit hole... yet.
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This photo was going 70 mph according to GPS but in a headwind that was 20 mph gusting to at least 35 mph.
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This video was taken with a 10+ mph crosswind and tailwind (about a 45 degree angle off the right rear quarter).
I was wondering about the black plastic covers on the A pillars. Mine are not in the exact same position on both sides - with one leaving a gap before the top of the pillar. I wonder if this is contributing to buffeting. Have you done anything with the A pillar?
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