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  #291  
Old 04-07-2018, 04:44 PM
fresh36 fresh36 is offline
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Boat: 1993 Prostar 205
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Just replaced my engine hatch insulation on my 05 X9. Didn’t take pictures through the process but wanted topmost the final product. I purchased my material from soundcow.com. Not cheap. Took two sheets that are about 4’ x4’. Won’t know until I put it in the water on whether or not there is a big difference. It is about 1 and 1/4” thick and has a rubber barrier in it as well.

I removed about 70% of the glue and found that to be the worst part. Tried just about everything and nothing worked great. All of it would tend to loosen the glue up and then it would just move around. Ended up power washing what I could and the cleaned it up.




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  #292  
Old 04-30-2018, 11:21 AM
Cody2662 Cody2662 is offline
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Boat: 1997 Mastercraft 205, Chevy V8
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I got mine done last weekend, it was pretty well fried. It turned out pretty well. I got some dynamite tape for the seems and to hold the cup holders together. Itís a hell of a a lot more quiet now
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  #293  
Old 04-30-2018, 11:27 AM
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mikeg205 mikeg205 is offline
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Boat: 1995 Pro Star 205 5.7 Liter
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Quote:
Originally Posted by Cody2662 View Post
I got mine done last weekend, it was pretty well fried. It turned out pretty well. I got some dynamite tape for the seems and to hold the cup holders together. Itís a hell of a a lot more quiet now
where do you get the dark foam -
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  #294  
Old 04-30-2018, 11:32 AM
Cody2662 Cody2662 is offline
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Boat: 1997 Mastercraft 205, Chevy V8
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Originally Posted by mikeg205 View Post
where do you get the dark foam -


It is from McMaster- Carr also, p/n 5692T49. I got 8í of it

https://www.mcmaster.com/mv1524768349/#catalog/5692T49


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  #295  
Old 05-01-2018, 07:32 PM
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paintpollz paintpollz is offline
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Boat: 2002 Prostar 197
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Originally Posted by Coach Mike View Post
Been running for a couple weeks and I'm very happy with the level of noise reduction we got with the 3/4" foil faced insulation from Fatmat. The tape really makes it all look great and seamless too. Glad we did it too.
Mike, do you have perfect pass in your boat? My PP servo hits the engine cover every time I close it, even with the foam removed. That's why I'm hesitant to do this project. I wonder if I can shift the PP servo somehow.....
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  #296  
Old 06-02-2018, 10:29 PM
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bret bret is offline
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Gotta pic? I had to move my engine box forward about an 1/8" to keep mine from hitting my PP. There was enough play in the screws that hold the back floor plate to move it just enough to not hit anymore. I used the Cool It Thermo Tec, bit thinner than the foam.
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  #297  
Old 06-16-2018, 10:32 AM
petemay121 petemay121 is offline
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Boat: Mastercraft, ProStar 190, 2001
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I just did mine also on a 2001 ProStar 190 - got it off Amazon, I sanded the inside and cleaned it - it stuck very well. Will see how it holds up this summer.
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  #298  
Old 07-11-2018, 06:25 PM
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agua4fun agua4fun is offline
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Boat: Prostar 190 Sammy Duvall & 230VRS
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Since Acoustical Engineering is part of my job, I had to test my before/after results with the engine box insulation upgrade. - Maybe it's too much info, but I had to do it.
I used McMaster 5692T52 foil insulation (I ordered 8' and used all of it). It wasn't the highest rated for sound absorption, but I liked the look of the foil when complete. I also like the idea that if the foam starts to fail like the old stuff, It will stay off the engine for a while longer.

2001 PS190 Sammy 330 LTR

The key on each image is in the top right
The 'Before' measurements don't say before, and are with no insulation. (after I removed the old nasty stuff)
The 'After' measurements are noted as 'after'
Off = engine off, just a baseline
Idle = engine is idling in open water.
Gear= engine is in gear but at idle speed
1k= 1000 rpm
3k= 3000 rpm
4k=4000 rpm (more wind noise than anything)

I tried to maintain the same testing conditions before and after insulation.
80-85 degrees, low humidity, less than 5mph wind, same people on board, boat warmed up etc.. Testing was with a certified calibrated test microphone and software.

Overall, I would say it took the edge off the noise, but wasn't as much of a change as I would hope.
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  #299  
Old 07-11-2018, 11:30 PM
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paintpollz paintpollz is offline
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wow. not worth it
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  #300  
Old 07-12-2018, 12:07 PM
Roman Roman is offline
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Om nm, i figured out how to read the graphs.

Can you filter the noise out of the results somehow so the lines are smoother? Im trying to understand how much reduction in db you are seeing in gear at idle and at 3k.

Idle looks to be a good reduction in noise, like around 5-10 db if I try to visually filter the data.
3k looks to be around like a 3-5db reduction?

Im about to do this but I am going to get the mcmaster one that says 75% reduction in noise. I assume yours is the 50% reduction one.
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