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  #1  
Old 05-06-2020, 09:08 AM
Kooshball Kooshball is offline
 
Join Date: Dec 2018
Location: NC
Posts: 193
Default Photos of Engine mounted oil cooler exits??

I am curious to see some photos of what folks have done with the exit of oil coolers mounted behind the rear cylinder on an installation with plenums vs baffling. I have been reading about diffusers, ducting via scat, ?do nothing?, etc am looking for best practices.

Thx
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  #2  
Old 05-06-2020, 11:15 AM
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Raymo Raymo is offline
 
Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 2,340
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Mine (w/ plenum) is mounted behind the #4 cyl with nothing for ducting. I have to cover about a quarter of the cooler, even in the summer Georgia heat, to keep temps around 180-200.

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Last edited by Raymo : 05-06-2020 at 11:17 AM.
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  #3  
Old 05-06-2020, 11:18 AM
Ralph Inkster Ralph Inkster is offline
 
Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,577
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Suggest mount it per the FWF plans for now, and only IF you have issues, look into specialty modifications/ducting/louvers etc. Oil cooler should work the same with either closed plenum or stock baffle system.
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  #4  
Old 05-06-2020, 05:15 PM
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RV7 To Go RV7 To Go is offline
 
Join Date: May 2011
Location: Ontario, Canada
Posts: 321
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Quote:
Originally Posted by Kooshball View Post
I am curious to see some photos of what folks have done with the exit of oil coolers mounted behind the rear cylinder on an installation with plenums vs baffling. I have been reading about diffusers, ducting via scat, ?do nothing?, etc am looking for best practices.

Thx
I mounted mine as per the drawings and like many others found the baffles starting to crack after 50 hrs in the corner behind #4 cyl. I modified the baffles as per many posts. I then found cracks in the cooler mounting flanges. I mounted the new cooler from the engine mount and fabricated some glass transition ducts using 4" SCAT to connect. No cooling or cracking issues in the 250 hrs since the mod. Sorry no photos but there many posts with pics showing different mods.
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  #5  
Old 05-06-2020, 07:11 PM
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bhester bhester is online now
 
Join Date: Jan 2005
Location: Hopkinsville, KY
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Thumbs up Just rebuilt mine





Yes, I also have a oil cooler shutter installed
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  #6  
Old 05-07-2020, 06:56 PM
John RV8 John RV8 is offline
 
Join Date: Feb 2005
Location: Watauga, TX
Posts: 160
Default Oil Cooler exit

Mine is mounted per the plans behind the #4 cylinder. With the louvre style airflow control. No ducting for the exit air. The louvers block some airflow even when fully open, but temps are never 210 even on a slow (for an RV) speed climb on a HOT Texas summer day.

Sorry, No picture.... it looks like most other RV?s 😎
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  #7  
Old 05-08-2020, 06:02 AM
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Capflyer Capflyer is offline
 
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Location: Gaithersburg, MD
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This was my last RV8 build using the larger SW oil cooler and using a plenum. It requires a larger hole in the rear baffle as well. Mounted it lower on the rear baffle at an angle which allows plenty of cooling on cyl 4 without scavenging its cooling air. 200 hours so far an no issues. My other RV8 has the stock Van's oil cooler mounted on the firewall ducted from the rear baffle behind cyl 4. That engine also has a plenum. Either way works fine but I like having a cleaner firewall look. No issues with engine cooling or oil temps on either plane.

https://photos.app.goo.gl/xKTT3onyE3FmavPd9
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Last edited by Capflyer : 05-08-2020 at 06:09 AM.
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  #8  
Old 05-08-2020, 09:08 AM
Edwardoc Edwardoc is offline
 
Join Date: Feb 2006
Location: Greeley CO
Posts: 37
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From my Build Photos. My baffles cracked on both sides so I reinforced both sides with angle.
https://edwardoconnor.smugmug.com/RV...xK/i-M5PZdW7/A
https://edwardoconnor.smugmug.com/RV...xK/i-rpcmdZD/A
https://edwardoconnor.smugmug.com/RV...xK/i-gM4bVtX/A
https://edwardoconnor.smugmug.com/RV...xK/i-vTcjFWC/A

Last edited by Edwardoc : 05-08-2020 at 09:12 AM.
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  #9  
Old 05-08-2020, 10:59 AM
Ralph Inkster Ralph Inkster is offline
 
Join Date: Feb 2008
Location: Calgary, Alberta
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Quote:
Originally Posted by Capflyer View Post
This was my last RV8 build... ...Either way works fine but I like having a cleaner firewall look. No issues with engine cooling or oil temps on either plane.

https://photos.app.goo.gl/xKTT3onyE3FmavPd9
But the firewall treatment does add to the 'COOL' effect!
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  #10  
Old 05-09-2020, 05:54 AM
Kooshball Kooshball is offline
 
Join Date: Dec 2018
Location: NC
Posts: 193
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Quote:
Originally Posted by Capflyer View Post
This was my last RV8 build using the larger SW oil cooler and using a plenum. It requires a larger hole in the rear baffle as well. Mounted it lower on the rear baffle at an angle which allows plenty of cooling on cyl 4 without scavenging its cooling air. 200 hours so far an no issues. My other RV8 has the stock Van's oil cooler mounted on the firewall ducted from the rear baffle behind cyl 4. That engine also has a plenum. Either way works fine but I like having a cleaner firewall look. No issues with engine cooling or oil temps on either plane.

https://photos.app.goo.gl/xKTT3onyE3FmavPd9
How far up does the rear baffle go behind the #4 cyl in your installation?
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