Thermocoustic sound deadened material

[htg700]

Has anybody ever tried using thermocoustic sound material in the engine bay behind the seats to try and quiet the hull noise from twin motor 2 stroke jet boats?

 

[Dr Honda]

There was a thread a couple years ago. Supposedly there was a marked noise reduction... but because of the price tag... and because it was still noisy... it was deemed "Not worth it."

Now... on the new 4-tec boats... the guys are doing it... and it's very quiet.

 

[htg700]

Thanks Dr Honda. Even a little bit of noise reduction would be just about right to hear the radio good when putzing around on one motor. I was more curious as to where to place it to get the best effect from it.

There was a thread a couple years ago. Supposedly there was a marked noise reduction... but because of the price tag... and because it was still noisy... it was deemed "Not worth it."

Now... on the new 4-tec boats... the guys are doing it... and it's very quiet.

 

[speedster98]

You just said something that scares me "putzing around on one motor". You do know that when one engine is off and the other is on, anything much over 5 mph will cause the non running engine to start flooding with water. I carry a couple of hose clamps in case I run into a 1 engine or tow situation. But for me I play it safe and never run on 1 engine without a clamp on the non running one.

 

[htg700]

Yes, I am aware of that .