Hello from eastern Washington State

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Hello from eastern Washington State

Postby GuzziJohnO » Mon Feb 20, 2017 6:24 pm

Diesel Goose left side rather small.jpg
Diesel Goose left side rather small.jpg (77.68 KiB) Viewed 447 times
I started building my diesel motorcycle in 2005, but only got it on the road in 2013. I've tried to document the steps as the project has progressed over the years, and will be pleased to share them here. One goal has been to make the finished result look "stock". I'm quite pleased with the result.
In the USA we have no small car diesel engines available (VW 1.6 being the only "small" car diesel), making it more difficult to build our own diesel motorcycles with realistic freeways capabilities (i.e: 75mph+). I think I'm pretty close to achieving the speed as well as the desirable fuel economy. It's a work in progress, like so many of the other ones on your most excellent website.
Some details:
Daihatsu/Briggs DM950D (26.5hp, non-turbo), new from Tulsa engine warehouse.
1976 Moto-Guzzi Convert chassis, tranny and rear end, stretched 5 inches.
Stock performance = about 30 to 35 mpg (US gallons) at 70 mph, 120mph top.
With Diahatsu = 46 mpg, 62 mph max (redline), better economy at 55mph.
With Vetter streamlined nose = 64 mpg, 65 mph
The goal is 100 mpg. I'm modifying a spare tranny for a 25% overdrive, which should give about 75mph top.
I also have a 5 speed tranny that will eliminate the 20% loss through the torque convertor, if I can figure a clutch to fit.
A streamlined tail will also help. As one of the Vetter Challenge competitors said " the first 100 mpg is easy".
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Re: Hello from eastern Washington State

Postby Stuart » Tue Feb 21, 2017 7:01 pm

Thanks for sharing with us John. As I mentioned before, I've put it out on our social media feeds.
Stuart. Smart Turbo Diesel Tiger, Honda NC700S, Ducati Hypermotard 821, Toyota Corolla 1.4 Turbo Diesel. Favouring MPG over MPH.
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Re: Hello from eastern Washington State

Postby Stuart » Wed Feb 22, 2017 3:15 pm

John, Willem has asked (over on FB) whether you needed to stretch the frame on your build?
Stuart. Smart Turbo Diesel Tiger, Honda NC700S, Ducati Hypermotard 821, Toyota Corolla 1.4 Turbo Diesel. Favouring MPG over MPH.
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Re: Hello from eastern Washington State

Postby Tetronator » Wed Feb 22, 2017 9:51 pm

That's a really nice build John, kudos.
"...the fearless Dutchman..." -Stuart
"...the mad Dutchman..." -Diesel Dave

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Re: Hello from eastern Washington State

Postby GuzziJohnO » Thu Feb 23, 2017 12:45 am

Thank you for your kind words. I'm hoping to get the opportunity to show it off to more people in person. Travelling to Britain or the European continent with it is beyond my budget, but my fingers are crossed that there'll be something similar on our west coast within reasonable range.
Cheers,
John
Diesel Goose right side.jpg
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Re: Hello from eastern Washington State

Postby pietenpol2002 » Thu Feb 23, 2017 11:48 am

That's a marvelous piece of work. Please do give us a write-up over in the build section. And for us visual learners, lots of pics.
Ron
Goshen, IN USA
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Re: Hello from eastern Washington State

Postby coachgeo » Fri Feb 24, 2017 7:38 pm

for future reference here is link to his build page

viewtopic.php?f=31&t=3328
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