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Sean Caranna
Joined: 11 Aug 2004
Posts: 175
Location: Daytona Beach, FL
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| Posted: Sat Aug 14, 2004 1:17 am Post subject: Harley Twin Cam 88ci Engine for Aircraft |
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| http://www.hog-air.com/index.htm is where I found out about this. Does anyone know more about it? |
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Johnny luvs Biplanes
Joined: 12 Aug 2004
Posts: 43
Location: Weybridge, Surrey, England
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| Posted: Tue Aug 17, 2004 3:33 pm Post subject: |
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| This came up on another forum last year, it got poo poo'ed for bad drive design and suspect cooling issues. This was only peoples opinion though based on study of available info! |
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Brett
Joined: 19 Aug 2004
Posts: 24
Location: West Frankfort, IL
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| Posted: Thu Aug 19, 2004 3:09 am Post subject: |
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The only cooling issues we have had is getting it warm enough.
We have had no problem keeping them cool.
As for the drive the first one we did now has over 200 hours on it with no problems. |
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Johnny luvs Biplanes
Joined: 12 Aug 2004
Posts: 43
Location: Weybridge, Surrey, England
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| Posted: Sat Aug 21, 2004 6:08 pm Post subject: |
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Brett
Are you the manafacturer of this set-up?
If so how about a detailed report on various forums?
John |
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Brett
Joined: 19 Aug 2004
Posts: 24
Location: West Frankfort, IL
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| Posted: Sat Aug 21, 2004 11:21 pm Post subject: |
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| Yes that would be me. I could do that. What other forums did you have in mind? |
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Johnny luvs Biplanes
Joined: 12 Aug 2004
Posts: 43
Location: Weybridge, Surrey, England
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| Posted: Sun Aug 22, 2004 6:14 pm Post subject: |
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Hi Brett,
Here would be a start, also: http//www.homebuiltairplanes.com/forums/
http://www.pfa.org.uk/cgi-bin/ultimatebb.cgi
There are plenty of other places listed on the Homebuilt website.
How about EAA pages, lots of scope there.
I wish you the best of luck with the project.
Cheers,
John[/url] |
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Brett
Joined: 19 Aug 2004
Posts: 24
Location: West Frankfort, IL
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| Posted: Sun Aug 22, 2004 11:59 pm Post subject: |
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| Thanks I'll check them out. |
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Sean Caranna
Joined: 11 Aug 2004
Posts: 175
Location: Daytona Beach, FL
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| Posted: Mon Aug 30, 2004 12:09 am Post subject: |
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I was looking at the dyno charts on your web page. I'm sure these are crank HP/TQ numbers but they are impressive.
I was wondering what has been changed on the engine for aircraft use. Heads, Carb, Ignition, Cams, Aircleaner? I looks like a nice flat torque curve for a twincam. This can't be a "drag" type exhaust. Can it? |
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Brett
Joined: 19 Aug 2004
Posts: 24
Location: West Frankfort, IL
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| Posted: Tue Aug 31, 2004 9:33 pm Post subject: |
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Yes these are crank HP #'s.
We change them all except the heads. If we change the heads then we can get more out of it. But most people don't want to spend the extra money. On my plane I have a stright pipe " drag style" exhaust. We can get about 8 more hp. if we use a 2 into 1 exhaust. But I wanted the sound for fly overs and shows etc.
Brett |
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jd
Joined: 09 Jul 2007
Posts: 19
Location: irrigon,orygun
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| Posted: Tue Sep 11, 2007 1:50 pm Post subject: |
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| sounds like somebody didnt design a good cooling duct for the heads.if ya use synthetic oil and a oil cooler ya get more performance and longevity on yer mill.check out clotz scooter oil. |
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