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October 19th, 2014, 05:23 AM   #1
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The technical adventures of Dr_C

I'm starting a new thread here, as the old one has become very large and seems impossible to move from the market place. I have actually got some attention from the forum Forums - www.Motorcyclebuilders.net - You build it.. We show it to the world! as you can see here: The Husaberg DRC680 - www.Motorcyclebuilders.net - You build it.. We show it to the world!

Fun and feeds my latent narcissism!
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October 19th, 2014, 11:01 AM   #2
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Fun read!

I don't think I had actually seen the head before. It's beautiful!

What EFI system did you use?
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October 19th, 2014, 11:58 AM   #3
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Originally Posted by tourist View Post
Fun read!

I don't think I had actually seen the head before. It's beautiful!

What EFI system did you use?
Thanks, Feršamašur!
I'm using a Megasquirt III system, Ducati 1198 throttle body and injector.
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October 19th, 2014, 04:47 PM   #4
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Excellent DR C, thanks for taking the time

not sure why they don't think the coffee percolator crank vent is the cutting edge of the project
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October 19th, 2014, 10:29 PM   #5
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Originally Posted by bushmechanic View Post
Excellent DR C, thanks for taking the time

not sure why they don't think the coffee percolator crank vent is the cutting edge of the project
Beats me too! Specially considering all that engineering and fabricating involved with it!
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October 25th, 2014, 08:47 AM   #6
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Today some plumbing with the coolers!

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October 31st, 2014, 06:52 AM   #7
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If you don't have access to fancy tools making the necessary thickening on the cooling stub, a weld will have to do! Make sure there is enough piece of straight tube to fixate it in the lathe. Voila!



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October 31st, 2014, 05:48 PM   #8
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Problem-solving is fun.

I'm really curious about the EFI conversion. Did you have a timing wheel machined for the flywheel? Easy fit? How is the cam sensing done? (Is there only one canonical way to do that. .?)
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October 31st, 2014, 11:34 PM   #9
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Originally Posted by tourist View Post
Problem-solving is fun.

I'm really curious about the EFI conversion. Did you have a timing wheel machined for the flywheel? Easy fit? How is the cam sensing done? (Is there only one canonical way to do that. .?)
Thats a novel right there... "Conversion" gives you the wrong idea. Development and manufacturing is more realistic!
The trigger is on the upper cam chain wheel and comes from one tooth only. I used a visual indication of TDC (on the flywheel) to calibrate the position of TDC against the tooth, which was done in the software. I have no sensor on the flywheel. Oh, no flywheel either for that matter!
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November 3rd, 2014, 11:58 AM   #10
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The lousy machinist in my workshop, probably the same b-stard that misplaces my tools all the time, managed not to get the cylinder sleeve flange square. So I had to machine a shaft to put the sleeve on, just to shave off 0,04mm to make the flange square and equally thick. Hm. I do not seem to have any problems keeping myself busy...

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