 Heater Core that fits in the fresh air box with minimal trimming! |
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| captain awesome |
 Dec 8 2025, 12:07 PM
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#1
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Newbie  Group: Members Posts: 38 Joined: 4-July 24 From: Bella Vista, AR Member No.: 28,217 Region Association: None  |
So I originally planned to use a Ford heater core but kept thinking there has to be something that will fit without requiring a "bump out" of the lid. Turns out a Honda s2000 fit great!
I trimmed the inner lip flush. The upper rain cover needed maybe a 1/2" removed to get it all to sandwich together. The outlets swivel with an internal o-ring so you can adjust the direction or placement of the hoses. Attached thumbnail(s)   
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| bdstone914 |
Dec 9 2025, 04:48 AM
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#2
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bdstone914 Group: Members Posts: 5,213 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
It will be interesting to see if the fresh air box can take the heat. I once put a housing in the ultra sonic and heated the water to 180 degrees F. The box looked like a Salvadore Dali clock.
The other concern is the weight you are adding. Most air boxes have cracks at the two mounting points at the top. I have added two more mounting holes and nuts as the flanges have the holes already. |
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| captain awesome |
Dec 9 2025, 08:31 AM
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#3
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Newbie Group: Members Posts: 38 Joined: 4-July 24 From: Bella Vista, AR Member No.: 28,217 Region Association: None |
QUOTE(bdstone914 @ Dec 9 2025, 04:48 AM)  It will be interesting to see if the fresh air box can take the heat. I once put a housing in the ultra sonic and heated the water to 180 degrees F. The box looked like a Salvadore Dali clock. The other concern is the weight you are adding. Most air boxes have cracks at the two mounting points at the top. I have added two more mounting holes and nuts as the flanges have the holes already. There are plenty of examples of others using heater cores in the stock fresh air box, so I don't think there's any real concern of it melting. It's also a smaller core than most have used so it seems less likely to crack than most. I will however keep an eye on that, possibly reinforce the mounting area to ensure it lasts longer than a few trips. |
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Posts in this topic
captain awesome Heater Core that fits in the fresh air box with minimal trimming! Dec 8 2025, 12:07 PM
captain awesome More pics Dec 8 2025, 12:08 PM Ninja Thanks for posting!
That does fit pretty nice... Dec 8 2025, 02:12 PM
bdstone914
It will be interesting to see if the fresh air b... Dec 9 2025, 10:05 AM |
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