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Old 09-06-2018, 08:29 AM
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DanH DanH is offline
Join Date: Oct 2005
Location: 08A
Posts: 8,447

Originally Posted by Robb View Post
I guess this is what you have to deal with on experimental airplanes.
No, you don't. Quite the opposite. With an experimental we are free to make whatever changes we wish to improve cooling performance. Of course, the two-edged sword rule applies; we're equally free to make bad choices.
Dan Horton
Barrett IO-390

Last edited by DanH : 10-04-2018 at 10:34 AM.
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Old 10-14-2018, 10:52 PM
rightrudder rightrudder is offline
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,687

I finished the baffle modifications for cylinders 2 & 3 (quite similar to the pic that BillL posted) and am extremely happy with the results. No. 2 (the hottest) dropped about 25 degrees and is now the coolest! No. 3 is down about 10 degrees. Shoulda done this sooner.
RV-9A "slider"
Flew to Osh in 2017 & 2018!
Tail number N427DK
Donation made for 2019
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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Old 10-15-2018, 05:37 AM
NYTOM NYTOM is offline
Join Date: Jun 2005
Location: Raleigh, North Carolina
Posts: 1,054

Just finished the #2 cylinder mod as presented by Bill and also having completed the widely accepted modification duct on #4. Glad to hear your results were acceptable Doug. Confident I have avoided a potential overheating problem. Would never have know about these proven solutions if not for the “VAF” Thank you gentelmen.
Tom Norwood
Classic "Short Tail Six" A Model N822PM (Res)
99% done, 1% to go! Oh so close!
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Old 10-30-2018, 11:46 AM
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boom3 boom3 is offline
Join Date: Dec 2006
Location: Sumner, WA
Posts: 720

Does anyone have any pictures of successful baffling improvements for cylinder #4? I've seen lot's of great ideas for #2 and #3. Thanks!

IO-360 parallel valve, Van's baffling with stock oil cooler.
Jeff Bloomquist
Sumner, WA

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