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Owyhee Canyon Pictures

 
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lcottrell



Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or

PostPosted: Thu Mar 19, 2009 5:29 pm    Post subject: Owyhee Canyon Pictures Reply with quote

http://www.facebook.com/album.php?aid=2012888&id=1002056194&l=358dc9273a

The weather was good today even though the lighting was a bit flat, so I flew again in my attempt to break in my HKS before I have to try to keep up with a bunch of Mark III's this May after MV.

To keep from getting bored with the scenery I went to the Canyon, which always holds fascination for me. I flew for 1hour and 18 minutes traveling 79 miles. I flew the first 45 minutes at 5000 RPM's on one tank and then switched to the rear tank and flew at 5400 RPM"S. The weird thing about it is that there is no noticeable difference in fuel burn. Temps are still high and I had to fly with the choke on to keep the temps under control on my way back. I have 18 hours on the engine now. At 5000 RPMs the temps were 316 tops. The only trouble with that is that I don't like to fly that slow. Smile
Larry
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John Hauck



Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

PostPosted: Thu Mar 19, 2009 5:53 pm    Post subject: Owyhee Canyon Pictures Reply with quote

Folks,

The photos don't compare with flying the Owyhee.

First time I flew it I had Arty Trost on board. I think John W had dropped down in the canyon ahead of me.  We were up on the lip. I asked Arty if she was game for flying the canyon. Her reply was go for it. We dropped in and she grinned and yelped the rest of the flight. As big as the canyon is, it still feels like your wing tips will hit the sides, once down in the bottom right over the river.

Had the opportunity to fly it every year since then. Think that was 2006.

john h
mkIII
[quote] To keep from getting bored with the scenery I went to the Canyon, which always holds fascination for me. Larry
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John Hauck
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hauck's holler
Titus, Alabama
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NeilsenRM(at)comcast.net
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PostPosted: Thu Mar 19, 2009 8:27 pm    Post subject: Owyhee Canyon Pictures Reply with quote

Larry

This just doesn't sound right. Your going to have problems when it warms up. I'm sure you told us before but are you running too lean? What do your spark plugs look like? What temps are the other Kolb HKSs running? My VW guru has me jetting my VW on what I would say is on the rich side. A bit richer than I see on a water cooled engine. Seems like running a bit rich lowered my VWs oil temps but not my cht. Go figure. My VW CHTs run on the cool side but when pushed beyond cruise power they warm up. Are you running with too much prop pitch. Do you notice a large noise reduction when pulling power back to cruise power? Do you need to fashion some cooling scoops around those cylinders. My VW needs to have cooling air forced all the way around the cylinders and thru the heads. But a HKS has only one cylinder on each side so cooling should fine but? Most HKSs run with a big fan in front, do you need something extra in pusher mode.

Rick Neilsen
Redrive VW powered MKIIIC

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lcottrell



Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or

PostPosted: Thu Mar 19, 2009 9:24 pm    Post subject: Owyhee Canyon Pictures Reply with quote

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John Hauck



Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

PostPosted: Fri Mar 20, 2009 5:46 am    Post subject: Owyhee Canyon Pictures Reply with quote

Looks like more than half of your oil cooler is blocked by the gap seal.

With the muffler positioned where it is, that may also be degrading the oil cooler's performance.

The oil cooler placed under and rear of the muffler may be kicking air off of or blocking cooling air from the cylinders.

A couple straight stacks out the rear of the engine would eliminate that big "can" muffler. Got to be disrupting air flow and increasing drag.

I know you want your airplane quiet, and I don't blame you. Wish mine could be put into stealth mode, as my hearing quickly fades away. Very fatiguing flying all day in a snare drum like mine.

john h


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[img]cid:DBCC2252A4974526916CB89B5DC5E44A(at)hauck[/img]
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As you can see the muffler and oil cooler block a lot of air. I am just not sure if moving the cooler will make that much difference however. Oh if you are wondering this was the set up that was sucessful on a Slingshot. I am not convinced that it is going to work on a Firestar however.
Larry
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