2022 Sound Proofing

[HFarr]

This is what I did to my trans cover last year. It made a difference in that whine sound. I also did the large floor pan over the gas tank. I did not do the engine hatch, back engine wall, or the two side bins.

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[larry_arizona]

The Amazon foam works.

The boat is really quiet.

Lost a couple small squares over winter storage, but the large pieces stay put.

I rate this modification 9.5/10


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[2in2out]

Trying this stuff, low cost and easy.

Sound Absorbing Foam 12 Pack, 12 x 12 x 2 inches Sound Proof Foam Panels, Soundproof Foam with Adhesives, Recording Studio Acoustical Treatment Soundproof Wall Panels Mushroom, Blue Wall Sound Panels https://www.amazon.com/dp/B097PZBYMV...ing=UTF8&psc=1

I grabbed a 24 pk, says adhesive and foam is water friendly, if it works, great, if not, only out $50

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Kent, how is your sound proofing holding up?

I ordered the same stuff for our 22 after conversing with the wife about how much louder the 22 was over our 20.

I plan to put it on tomorrow and was wondering if I should get a different adhesive.

Also, did you clean the surface before application? What did you use?


2022 SA 450

[mjb929rr]

Kent, how is your sound proofing holding up?

I ordered the same stuff for our 22 after conversing with the wife about how much louder the 22 was over our 20.

I plan to put it on tomorrow and was wondering if I should get a different adhesive.

Also, did you clean the surface before application? What did you use?


2022 SA 450

I installed it with some gorilla spray adhesive. It seems to be holding up well. I’m shocked your new one is louder. Our 20 was so much louder inside even before we did the extra sound proofing in the 22

[larry_arizona]

Kent, how is your sound proofing holding up?

I ordered the same stuff for our 22 after conversing with the wife about how much louder the 22 was over our 20.

I plan to put it on tomorrow and was wondering if I should get a different adhesive.

Also, did you clean the surface before application? What did you use?


2022 SA 450

Absolutely stunned your 22 is louder than your 20.

The whole reason I added the style of sound deadening foam I did, was based on what Supra used on the 22’s

The foam is holding up great. The only pieces I lost were on contoured surfaces.


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[2in2out]

I was really surprised by the noise as well. I remember our first ride in the ‘20 I remarked how quiet it was as we idled away from the ramp. It did have a different transmission whine, but I never got to doing the Kilmat before we sold it.

After two days out, I really noticed the difference at idle, engine noise was louder, and anything over 2200 RPM was loud enough you couldn’t have a conversation. In the ‘20 wife and I conversed easily at those rpm’s. She has diminished hearing from working in and around aircraft, and I am prone to quiet speech patterns.

The noise may also be a result of altitude as well. We used to boat between 4300-6500 ft ASL, which would have some effect on acoustics.

For $50 and 2 hrs time, if I can improve the situation, good money and time spent as long as I don’t get heat stroke again. Gonna be 99 today. I used the extended Bimini while cleaning out the boat 2 days ago, and gonna put it up again today.


2022 SA 450

[2in2out]

Anyone know what the food grade adhesive they use to put labels on cookware is called?

I thought about using that to bond the squares on the contours. It seems to have good adhesion, easy to remove, and be relatively heat/water resistant.


2022 SA 450

[larry_arizona]

No need to worry about water resistance, the areas you foam will never see water.

Curious how much foam Supra installed and where on your boat.


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[2in2out]

Engine before:

Two pieces of transitional density foam.


2022 SA 450

[2in2out]

After:
Filled some of the voids between the stock foam where there was enough flat to get adhesion.


2022 SA 450