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dan(at)weyant.net
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 Posted: Tue Aug 09, 2016 5:23 am Post subject: [RV Builders] (unknown) |
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Ralph,
I’m running an IO-320 in my RV-9A.
I initially had some issues with my #1/#3 side running hotter on #1 than #3. I started slowly cutting my block off plate away. I eventually wound up removing it entirely.
Obviously each install is a little different.Â
When I had one it was about 3 inches long (covered about the lower ½ of the #1. And about 2 inches high, rougly rectangle shapped
I notice a big difference between cruise and climb. I think it is mostly related to airspeed. Slower airspeed and full power I have to really watch my CHT’s. I usually run in the high 300’s during climb. At cruise leaned out I run about 350-370.
-Dan
From: RV7A(at)yahoogroups.com [mailto:RV7A(at)yahoogroups.com]
Sent: Tuesday, August 09, 2016 8:11 AM
To: rv-list <rv-list(at)matronics.com>; RV7 Yahoo list <RV7A(at)yahoogroups.com>
Subject: [RV Builders] (unknown)
For those of you running a four cylinder:
What does your #1 block off plate look like?
What kind of shape is it?
What dimensions at each end?
How well does it control / regulate the CHT balance for #1 and #3?
Do you notice differences between climb attitude and level flight attitude?
My #2 and #4 side seems to be pretty well balanced - even with the oil cooler opening up behind the #4. My #1 and #3 side still has the #3 CHT a little higher than I want it consistently and I have been fiddling with the size/shape of the #1 baffle in an effort to get a better level attitude balance. I have the spacer washer between the #3 baffle wraparound and the cylinder head - but I also have the openings for the muffler/heater air back there at the #3 area as well.
I'm trying to get a sense of what is working for folks out there - how big/small, what shape, and how effective.
I have installed the 'Turbo' shrouds at the suggestion of my FI vendor to help balance the injector flows - that seems to be working quite well!
Thanks,
Ralph Capen
Aerosport XP IO360B1F6 with LASAR ignition and Airflow Performance injection
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Posted by: "Ralph E. Capen" <recapen(at)earthlink.net (recapen(at)earthlink.net)>
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recapen(at)earthlink.net
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| Posted: Tue Aug 09, 2016 5:31 am Post subject: [RV Builders] (unknown) |
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Thanks Dan!
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