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Open Roads Forum > Do It Yourself Modifications and Upgrades (DIY)

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jjrbus

FT Myers FL

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Posted: 12/07/22 06:03am

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I am experimenting with the baffle for the exhaust. Using what I have laying around for a prototype. I am skeptical this will work, as I only have 18 sq in of exhaust, but have seen it done with less, looking at one online with no dimensions with about a 6 sq in exhaust. I am waiting for a thermometer I ordered which I should be able to use to monitor oil temperature before testing. I suspect I should have a fire extinguisher handy also.

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ProjectMon

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Posted: 12/07/22 08:59am

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The 1st box I built did not catch on fire but did fall off the back of the trailer while driving down the road... Grin. Luckily it was wired on, so it was destroyed but did not fall into traffic.

2021 Dutchman Kodiak Ultra-Light 283BHSL
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jjrbus

FT Myers FL

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Posted: 12/08/22 06:07am

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Thanks for the response. My picture did not post. The prototype is made from cardboard, masking tape and the cheap white open cell foam. Osha would have a fit.

ProjectMon

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Posted: 12/08/22 06:42am

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If you are truly concerned that you might catch the cardboard on fire, you can make homemade fire-retardant and spray your flammable materials, let them dry and then move forward.

Here is a quick link to some mixes you might consider:
Flame Retardant Mixes

* This post was edited 12/18/22 09:10am by an administrator/moderator *

jjrbus

FT Myers FL

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Posted: 12/09/22 04:12am

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Thanks, I am not overly concerned but would not be surprised. I will not leave it unattended.

jjrbus

FT Myers FL

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Posted: 12/13/22 06:40pm

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Moving along at a snails pace on this. My cobbled together exhaust baffle for testing seems to be a sucess, will be trying to make it smaller. Picked up some 1 inch ductboard possibly to use as the exhaust baffle.

Finding a aluminum box was a challenge, I had an idea and my good budd the super craftsman Rick showed up and we chopped the bottom off the box, he did it with a circular saw freehand! Better job than I could have done on a table saw. We cut the bottom into strips and using that to raise the height of the box 3 inch to 20".

Taking everything into consideration I ordered the 1" Soundown. $74 sheet but a whopping $55 shipping!!

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