Heat Extractor

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Billykid
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Heat Extractor

Post by Billykid » Mon Oct 29, 2018 6:45 pm

Anyone running an Heat Extractor on there Lycoming engine, Though about one for my 0360, data sheet looks impressive would like to know from the horse's mouth :scratch: :rebel:

lariat
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Re: Heat Extractor

Post by lariat » Mon Oct 29, 2018 8:27 pm

I have one on my SV 540. I don't have a cyl head temp gauge, so I really don't know how much it's doing, but I do run a lot of dry and it makes me feel a little better about it.

Billykid
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Re: Heat Extractor

Post by Billykid » Tue Oct 30, 2018 7:07 am

did you notice a drop in oil temp

flcracker9
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Re: Heat Extractor

Post by flcracker9 » Tue Oct 30, 2018 9:08 am

I've run one on my 0470 for the last 2 years. When I installed it, I was hoping to see a little reduction in oil temp, but I didn't notice any difference (it runs about 180 - 190 with or without it). I've left it on in hopes it helps the middle cylinders run a little cooler but I don't have a cyl head temp gauge either.
12' Open Palm Beach, IO-0470-L 260hp, 72" NGQ

SuprchgedPalmBeach
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Re: Heat Extractor

Post by SuprchgedPalmBeach » Tue Oct 30, 2018 9:45 am

The "heat extractor" your speaking of doesn't have enough space between the cylinders and the top of shroud. There should be at least be 10-12" of space for cool air to pass from the bottom of the cylinders through the top of the shroud. The additional space is needed for your prop to pull the air through the cylinders. I run a custom shroud on a GSO 480 and run dry all day with no cooling issues and this motor creates more heat than a naturally aspirated motor.
airboat shroud.jpg
Last edited by SuprchgedPalmBeach on Tue Oct 30, 2018 9:58 am, edited 1 time in total.
15' 6" Palm Beach Hull, GSO-480, 82" 3-Blade JX Series

SWAMPHUNTER45
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Re: Heat Extractor

Post by SWAMPHUNTER45 » Tue Oct 30, 2018 9:56 am

Who makes them ?

SuprchgedPalmBeach
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Re: Heat Extractor

Post by SuprchgedPalmBeach » Tue Oct 30, 2018 11:15 am

George Arsenault
15' 6" Palm Beach Hull, GSO-480, 82" 3-Blade JX Series

SWAMPHUNTER45
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Re: Heat Extractor

Post by SWAMPHUNTER45 » Tue Oct 30, 2018 9:16 pm

Thanks for the reply

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Slidin Gator
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Re: Heat Extractor

Post by Slidin Gator » Tue Oct 30, 2018 11:31 pm

I am very interested in this discussion. I have no baffling on my SV O-540 and work her hard, she could use some cooling and let's me know when she needs it. I'm pretty sure this is the Heat Extractor that the whole post is about.
http://www.heatextractorinc.com/Home_Page.html

I guess I hijacked Baddad's thread , trying to re-arrange the pieces:
viewtopic.php?p=691142#p691142

I'm pretty sure these are pics of the Heat Extractor as posted in that thread by Kwan:
kwanjangnihm wrote:SV
Image
AV
Image
I can understand how this device would not work for a GSO 480 pushing an 82" prop, I have seen that result on a geared 540 application pushing a 78" 2 blade. The larger blades create less suction closer to the motor so baffling needs to move out with the prop. I also witnessed metal fatigue on the flaps in that application.

But, with my 72" prop, I am wondering if 12" of shroud rise might be too much to the cool side vs. thrust for my setup?
I grew up thinking I-10 was the Mason Dixon line.
1986 Airboat Engineering Inc., 14' Marsh Master. Refreshed narrow deck, SV O-540, 72” NGQ. A Bob Stossel original.

SuprchgedPalmBeach
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Re: Heat Extractor

Post by SuprchgedPalmBeach » Wed Oct 31, 2018 7:22 am

It has been proven that these "heat extractor" shrouds are a busted design. If you run a lake edge all day you will think there great. I rarely run water unless its to cross the river..
15' 6" Palm Beach Hull, GSO-480, 82" 3-Blade JX Series

terrible ted
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Re: Heat Extractor

Post by terrible ted » Wed Oct 31, 2018 8:42 pm

Since I installed my heat shroud my motor doesn't get hot. They actually just flow air around the cylinders better.

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