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  #11  
Old 04-25-2016, 07:05 AM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
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Quote:
Originally Posted by jswareiv View Post
Cylinder #2 runs hot and until I get the wheel pants on, I'll have to limit more flying. Hopefully more speed, less drag will help that. I have been having to fly it rich to help keep it below 400, so I'll be replacing some spark plugs, but better than replacing cylinders.
Speed will help, but it's not the root of the problem. A 390 can be cooled at low speed and high power. Look hard at sealing. If you don't get it straightened out in Phase 1, fly it up here.

This was all knobs forward from 200 to 15,000, a data gathering run at 125 knots true all the way. Full rich, cowl door open, so a fair equivalent to where you are now.

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  #12  
Old 04-25-2016, 07:59 AM
jswareiv jswareiv is offline
 
Join Date: Dec 2006
Location: New Orleans, LA
Posts: 474
Default CHT temps.

Quote:
Originally Posted by DanH View Post
Speed will help, but it's not the root of the problem. A 390 can be cooled at low speed and high power. Look hard at sealing. If you don't get it straightened out in Phase 1, fly it up here.

This was all knobs forward from 200 to 15,000, a data gathering run at 125 knots true all the way. Full rich, cowl door open, so a fair equivalent to where you are now.

Thanks Dan, I'll keep monitoring it.
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First RV-14 Flight 04/17/2016
Serial #140087, N214SW - Sold
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  #13  
Old 04-25-2016, 08:23 AM
Shanna Linton Shanna Linton is offline
 
Join Date: Feb 2014
Location: St. Louis, MO
Posts: 16
Thumbs up Congrats!

Congratulations on the first flight! Just watched the video on your website. I love to see RV Grins!
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  #14  
Old 04-25-2016, 09:45 AM
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Tilford Tilford is offline
 
Join Date: Nov 2008
Location: KY
Posts: 102
Default Thanks! Great timing.

Stoney,

Congratulations! and thanks for the motivation. It comes at a great time for me as I just finished inventorying my fuselage kit and have that overwhelming feeling of, what am I supposed to do with all of these non-deburred parts.

Thanks again for the motivation, I look forward to more photos, videos, and performance info.

Sincerely,
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RV-14A Fuselage Complete.
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  #15  
Old 04-25-2016, 11:40 AM
BobTurner BobTurner is offline
 
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Location: Livermore, CA
Posts: 6,797
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Do you have the same air dams in front of #1&2 cylinders as the -10? Many of us have cut them down to lower the front cht's.
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  #16  
Old 04-25-2016, 02:29 PM
TimO TimO is offline
 
Join Date: Feb 2005
Location: Wisconsin
Posts: 612
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Bob,
Thankfully on the RV-14 they are removable, so it wouldn't be too hard to experiment. It may be worth taking them off and creating new ones that are slightly shorter for #2 and seeing how it goes.
Tim
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RV-10 N104CD - Flying 2/2006 - 1400+ hours http://www.MyRV10.com
RV-14 N14YT - Flying 6/2016 - 350+ hours http://www.MyRV14.com
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  #17  
Old 04-25-2016, 02:41 PM
jswareiv jswareiv is offline
 
Join Date: Dec 2006
Location: New Orleans, LA
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Quote:
Originally Posted by BobTurner View Post
Do you have the same air dams in front of #1&2 cylinders as the -10? Many of us have cut them down to lower the front cht's.
I'm not sure if they are the same as the 10, I was thinking about removing it, but first I am going to see if the wheel pants help.
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First RV-14 Flight 04/17/2016
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  #18  
Old 04-26-2016, 06:54 AM
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eriddler eriddler is offline
 
Join Date: Jan 2014
Location: Ramstein, Germany
Posts: 18
Question Slow?

Just curious about the 'slow' comment...more in reference to acro or general performance?
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Future RV builder (maybe -8, er -14, er -10....)
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  #19  
Old 04-26-2016, 07:40 AM
jswareiv jswareiv is offline
 
Join Date: Dec 2006
Location: New Orleans, LA
Posts: 474
Default Acro & Speed

Quote:
Originally Posted by eriddler View Post
Just curious about the 'slow' comment...more in reference to acro or general performance?
Acro was normal, full loop with no issues and a couple of rolls, easy breazy. I shouldn't say it is slow yet, because I've had to stay at lower altitudes <4,000'. I haven't gotten over 145KTS yet. Once I get the wheel pants on, I will post again with any change in the numbers. I am hoping that will solve my cylinder temp issue, then I'm going to take it up to 8,000' and see what it will do. I'm expecting at least 180KTS. Definitely within the next couple of weeks.
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First RV-14 Flight 04/17/2016
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