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Author Topic: '78 GL-1000 ABS Test-Bed Gone Wrong  (Read 894 times)

Offline 4AM Engineering

  • Posts: 4
'78 GL-1000 ABS Test-Bed Gone Wrong
« on: Oct 29, 2018, 16:49:30 »
Hi all,
There are some slick builds on here, so I figured I'd throw mine in and benefit from your ideas.

I have never owned a motorcycle before, but my father's injuries from decades of riding Harleys inspired me to focus my senior Electrical Engineering project on antilock braking systems. I'm working alongside a team of friends who enable my bad ideas. The goal is primarily to learn about NHTSA standards, test engineering, liability, and calibration, but I'd love it if we could make ABS systems available to anyone who wants them.

Naturally, we needed a testing platform for the braking system. I purchased a '78 GL-1000 for $500 with the intention of doing the minimum to get it running.

That plan is not going very well at the moment.

Here are the big items:
2002 CBR954RR Fork
17x3.5" front w/ 120/70/17, 17x4.25" rear w/ 150/70/17, front laced to Cognito Moto hub
CB750 fuel tank
Motogadget fuse block
IHI T3/T4 turbo from a 1992 7.3L F-250


Here is the bike as-purchased.. Sitting since Christmas of 1983. How do I know this? The trunk was a time capsule, filled with strange and embarrassing personal effects, children's toys, letters, manuals, old electronics, and more..


Ditched the old-man gear


Stripped down


Now the work begins... purchased and repaired a dented CBR954RR fork, chopped the frame in a lot of places, cut the tank open, laced up wheels, and more.






How I feel about lacing motorcycle wheels...






Tire clearance has been a real difficulty, but it can barely squeeze the 150 in after some heavy modification to the swingarm. I knocked as much material out of the side as I could, then TIG'd in 12ga mild plates with ER70S-2 filler and blended the metal. Good penetration, so I'll trust it.




Thanks for reading! Next steps are seatpan and gas tank fab, conversion stem installation, and making the positive mold for the seat foam. Then we can figure out where to mount that turbo ;)



« Last Edit: Oct 29, 2018, 17:27:05 by 4AM Engineering »

Online pidjones

  • Posts: 498
Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #1 on: Oct 29, 2018, 21:06:49 »
I've seen supercharged GL1000s. Never a really successful (as in actually produced useable more more) turbo charged. Tricky with the two banks of cylinders exhausting so far apart. How do you plan to fuel it? Assuming some kind of FI.
"Love 'em all.... Let God sort 'em out!"

Offline TranceMachineVienna

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Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #2 on: Oct 30, 2018, 05:43:10 »
Very interesting project I´ll be watching!

Offline datadavid

  • Posts: 1374
Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #3 on: Oct 30, 2018, 07:52:15 »
I've seen supercharged GL1000s. Never a really successful (as in actually produced useable more more) turbo charged. Tricky with the two banks of cylinders exhausting so far apart. How do you plan to fuel it? Assuming some kind of FI.
Twin turbos!!

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Online pidjones

  • Posts: 498
Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #4 on: Oct 30, 2018, 08:11:40 »
Yes, interesting project for hot rodding. Poor platform for the purpose of developing a generic ABS system.
« Last Edit: Oct 30, 2018, 19:28:58 by pidjones »
"Love 'em all.... Let God sort 'em out!"

Offline Maritime

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Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #5 on: Oct 30, 2018, 08:59:44 »
Ha, Sign me up!. I love my GL1000 and love seeing what folks can do to them.
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson


Offline teazer

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Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #7 on: Oct 30, 2018, 10:20:30 »
Interesting project.  Why are the clip ons upside down (ie on the wrong sides?)

Offline canyoncarver

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Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #8 on: Oct 30, 2018, 12:17:22 »
./
--

YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
KLR650, 65 Norton, my never finished shovelhead chopper, an 86' FXR, and an F9 Bighorn
more YZF750R's, more KZ's, a Zephyr750...and the ever unfinished 75' CB550 cafe.
--

Offline Popeye SXM

  • Posts: 140
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Re: '78 GL-1000 ABS Test-Bed Gone Wrong
« Reply #9 on: Oct 30, 2018, 12:21:04 »
Great project. My projects often go from simple, small to fully involved. I`ll be watching this develop