Noise

PBRDef19 · Dec 4, 2019

Thank you Eric for the suggestion! It worked out well, made a difference. I used two rolls.

A hunt 2 remember · Dec 9, 2019

So... after purchasing a soundproofing product from the stereo shop for QUITE A BIT MORE (but hadn't used it) I ran into this thread. My first thought was something in a horse mat type of thing, BUT NOT THAT THICK!!! I found a 6'x4' floor mat at home depot that was my first attempt. It work pretty well overall, but didn't kill the engine at high RPM's. Awesome as a floor mat though!!! Kept great traction under foot even with snow being track in... (I also think the way it lays over the floor laps, it will help with dust in the summer)But after seeing the 1/2" sticky back foam, it was game on. I bought two rolls. One for below the mid bar across the back and one above. Then I doubled the lower section again with the original floor mat I used at first. But again, i think all the extra foaming will contain my heat, dampen the road/engine noise,as well as keep the cab cleaner..... as you can see in pictures (if you look close) I cut the on the lower section so the access panel can still be removed. I also did behind the battery cover. I have all three compartments for under the seats which also helps with the noise below the seats... thinking I may get some for the bottom of the roof to retain heat loss and givethe speakers some backing for some depth/tone....

A hunt 2 remember · Dec 9, 2019

So... after purchasing a soundproofing product from the stereo shop for QUITE A BIT MORE (but hadn't used it) I ran into this thread. My first thought was something in a horse mat type of thing, BUT NOT THAT THICK!!! I found a 6'x4' floor mat at home depot that was my first attempt. It work pretty well overall, but didn't kill the engine at high RPM's. Awesome as a floor mat though!!! Kept great traction under foot even with snow being track in... (I also think the way it lays over the floor laps, it will help with dust in the summer)But after seeing the 1/2" sticky back foam, it was game on. I bought two rolls. One for below the mid bar across the back and one above. Then I doubled the lower section again with the original floor mat I used at first. But again, i think all the extra foaming will contain my heat, dampen the road/engine noise,as well as keep the cab cleaner..... as you can see in pictures (if you look close) I cut the on the lower section so the access panel can still be removed. I also did behind the battery cover. I have all three compartments for under the seats which also helps with the noise below the seats... thinking I may get some for the bottom of the roof to retain heat loss and givethe speakers some backing for some depth/tone....

A hunt 2 remember · Dec 13, 2019

Well I think this may cut SOME noise.... But I'm sure it will work for DUST/WATER coming in from around the doors as well as other areas the sheet goods don't work so well. It's pretty much the same stuff they use as a roof top gasket. Found it at my local HD...

Oh, I also bought two more rolls for the roof. May even pull the door skins and do them... I mean for the price of 6 rolls? The heat retention and sound proofing it provides is WELL WORTH THAT!! IMO

A hunt 2 remember · Dec 13, 2019

A hunt 2 remember said:
Well I think this may cut SOME noise.... But I'm sure it will work for DUST/WATER coming in from around the doors as well as other areas the sheet goods don't work so well. It's pretty much the same stuff they use as a roof top gasket. Found it at my local HD...

Oh, I also bought two more rolls for the roof. May even pull the door skins and do them... I mean for the price of 6 rolls? The heat retention and sound proofing it provides is WELL WORTH THAT!! IMO

View attachment 568

When I stated I got two more rolls, I meant of the 1/2" sheet goods from above. Not more of this...

WDRHD10Colorado · Aug 8, 2020

Hi.......

New to the forum !! Have a 2019 HD10 XT w/Cab. Also annoyed by the noise level. Have made a modification and taken measurements with a sound meter.

Cut off enough of the exhaust pipe to give it a "level run" and added a flex pipe exhaust system connector:

https://www.amazon.com/gp/product/B001AGMRA4/

This modification eliminates the helicopter "pocketa-pocketa" sound created when the exhaust gases hits the top of the sway bar. Idea from a man with a YouTube channel:

Sound level measurements made with VLIKE VL6708 meter with the flex pipe extension:

Idle at 1200 RPM....10 feet behind HD10 = 65.8 decibels; inside cab/windows open/windshield "cracked open" with lever = 67.1; inside cab/windows closed = 66.7 decibels. At 4000 RPM....10 feet behind = 79.7; inside cab/windows open/windshield "cracked open' with lever = 82.4; inside cab/windows closed = 81.6 decibels. Note that an increase of 10 decibels means apparent sound volume has doubled [2x] in intensity. Also note that you will suffer no hearing damage if you expose your ears to 82 decibels for a continuous 16 hours...but no longer. At 85 decibels, hearing damage is possible after a continuous 8 hours.

Going to install a Silent Rider muffler in-line with the OEM system and repeat measurements. Also looking at a sound insulation kit from Can-Am which goes on the 2020 models; part number unknown right now. Also considering the Thermo-Tec 14620 material or the XCEL Marine Roll to cover the interior side of the firewall. Will provide same measurements when I finish installation of one of these three insulation options.