The Gus bus

Discussion in 'Hacks' started by FR700, Sep 3, 2013.

  1. FR700

    FR700 Heckler ™©®

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    Jenny Craig paid a visit.

    49 mm DRZ' forks. Neck bearings and stem length are stock harley spec's.

    Trail #'s are well within the ballpark.
    johnwesley, Bobmws, OzCRU and 3 others like this.
  2. High Octane

    High Octane Long timer

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    I needs me a set of those forks. I missed a set in CO while I was there. Still building my pile of parts for next winters project.
  3. FR700

    FR700 Heckler ™©®

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    Bang for the buck they do alright. It's not like we're doing the Dakar or anything.

    Valving is easy enough to change, as are the springs. If anything, I may have to up the spring rate just a smidge. I'll play with oil weight and height before I make a call on valving.



    Tell me about it. I've been filling the dumpster and making runs to the scrap yard to get rid of stuff.

    Still, I've got enough leftovers to build another dedicated rig, so the tube bender will see another light workout.

    Stripped down, basic desert toy, anyone?








    Cousin had a quick chat with me the other day while we were dumping stuff. Something along the lines of 'Bear necessities'. Bastard may have a point.


  4. Strong Bad

    Strong Bad Former World's Foremost Authority

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    I seem to remember a Hardly Davidson at the Dakar, something about a wild pig or something..................The guy came from a long line of sidecarists, Scott something or another..........last time I talked to him, I was in the sand dunes in the Sonoran Desert and he was sitting comfy cozy in his living room on the other end of a sat phone..........but that's another story!























    :hide

    @HogWild




    Hi Scott!
    FR700 likes this.
  5. HogWild

    HogWild Scott Whitney

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    That one only came to exist because this one-off nitrous boosted Sportster racer wasn't up to that challenge.
    [​IMG]
  6. Bobmws

    Bobmws Curmudgeon At Large

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    Looks like a young Wookie!
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  7. Bobmws

    Bobmws Curmudgeon At Large

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    Hey, wait a minute! Are you building for export/emmigration? Or just reverse the photo? Tease? Pulling H.O.'s chain? :hmmmmm :ear :confused :augie :hide
  8. FR700

    FR700 Heckler ™©®

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    :lol3

    Actually, the bike's set-up to mount a sidecar on either side. The lower two are on the bike's center-line, with the front being higher than the rear to allow the fitting of a leaner. Options, wheeze HaZ them :nod
    High Octane and Bobmws like this.
  9. FR700

    FR700 Heckler ™©®

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    That's a sexy looking piece of equipment, Scott. Thank you for posting the pic', looks like we'll all have to lift our game after seeing that.

    What was its main usage intended for, if I may ask? I'm guessing EFI with the fuel cell in the chair, and the spine being the oil tank?




    .
    Strong Bad likes this.
  10. High Octane

    High Octane Long timer

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    I’d fly over there and take that thing for a test drive but I don’t like snakes and I think the heat would melt me.
    Bobmws likes this.
  11. Strong Bad

    Strong Bad Former World's Foremost Authority

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    He does set a high bar!
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  12. HogWild

    HogWild Scott Whitney

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    My brother JT and I built it in 1982 for motocross. We raced it for a couple of years, winning quite a lot until JT retired from racing. Along the way we got some support from the HD factory (1 free motor and some moral support). When JT retired, I hitched up with my other brother Pete, and we rode a Yamaha XS650 (built to 1000cc), then a CR500 Honda. The Sportster was sold to an enthusiast who wanted to convert it to street use, while maintaining its race heritage as much as possible. When the opportunity to race Pikes Peak Hillclimb came, they had a rule that prevented our CR500 from use there (I think it was a "no 2-strokes" rule), so we needed another bike. We contacted the new owner of the Sportster (which had not be touched since the sale) and asked him if we could borrow it back for Pikes Peak. He was thrilled to do that, so we fixed it up and raced there in 1997. We got our butts kicked because we didn't have enough horsepower (the motor was mostly a 1970's version, with a few enhancements). So, we had to come up with a new plan in order to win there the next year. I looked at every possible angle to assure a win and found a flaw in the rules where they forgot to exclude nitrous and other similar enhancements for the sidecar class. So, off and running we went, learning about and implementing a nitrous boost system for the Sportster. We also got a race-built newer Sportster motor from the Bartels HD dealership, which was a large performance boost. We informed the race officials of our nitrous plan shortly before the race, though it was a secret we kept from all the other competitors. The officials were not happy to be informed of their oversight in the rules, but they ok'd our system since it was too late to change the rules. We went on to win that year and a couple more times in the following years, with and then without the nitrous. Then came a Swedish team who beat us there, while we blew up our motor trying and failing to keep up (again a horsepower shortage). Again a new plan was put in place to beat them the following year. The new plan was to build an all new bike with a much more modern motor, and a configuration that could be changed from a Pikes Peak setup to an off-road desert setup (for Dakar). At that time I selected the Suzuki TL1000R for the motor, and a very custom motocross sidecar derived chassis. We beat the Swedish team at Pikes Peak with the Suzuki, then the engine broke while I was testing in the dunes while preparing for Dakar. By that time the V-Rod had been introduced, so I went back to Bartels HD and they worked a deal with the HD factory to get two free V-Rod motors (reviving our relationship with HD). I swapped out the Suzuki for the V-Rod, and progressed with my Dakar plan.

    I sort of went off on a tangent there, so back to the original Sportster build...
    The oil is indeed carried inside the frame tubes, in the large single backbone and front down tube. The gas tank is an aluminum box on the front floor of the sidecar. There is a low pressure fuel pump that brings the fuel up to the carburetor (this was years before HD had fuel injection), with a gravity return back to the tank. The main fork tubes are straight (no bend) from the steering head down to the swingarm pivot point. There were a number of other unusual design elements that we implemented in order to attempt to gain a performance advantage. The experience of building that bike (during my first years of college) was a significant factor in helping me decide I could build a rig for Pikes Peak and Dakar that would be innovative and successful.

    For @Strong Bad , my very first time riding off-road in Mexico (I was never a "Baja" guy) was testing the V-Rod sidecar in the Sonora dunes just before Dakar 2006. That was a really crazy experience that stuck with me until I decided I needed to figure out a way to put on a real rally race there. I got two moto friends to go down with me and scout out some potential rally stages. That trip went VERY well! In those few days we by accident crossed paths with Bernie's dad and Cesar (the truck stop guy near the old barn bivouac who makes the breakfast burritos), neither of whom I knew before. Those accidental connections eventually became invaluable assets for the rally. That trip led to me hook up with Darren, who I came to find out had a similar dream of creating a rally there. So, in a very roundabout way, if it were not for building that Sportster sidecar back in 1982, there probably would not be a Sonora Rally!
  13. FR700

    FR700 Heckler ™©®

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    [​IMG]
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  14. FR700

    FR700 Heckler ™©®

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    Tangent? Good grief, no.

    I need to thank you for such a wonderfully detailed reply, and, indeed, for taking the time to do so. I'm sure it was very much appreciated by everyone that reads this thread. All three of them.

    When I got to the part where you were searching through the rules about nitros I suddenly visualized you wearing Smokey Yunick's hat. That was pure gold.


    .
  15. HogWild

    HogWild Scott Whitney

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    Don't just "Dream" a little bigger, when you see something you want, dive in and DO IT!
  16. FR700

    FR700 Heckler ™©®

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    High...





    Low...







    High, low? High, low? High, low? It's off to procrastinate we go :baldy






    .
  17. brstar

    brstar Long timer

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    Full cream is the way to go.
    Forget that hilo.
    Best is not easily swayed,
    Knowing how the C of G is played
    there is only one level for batteries to be arrayed
    If fears of tipping are to be stayed
    And wheels a top displayed
    So down to your way play
    And next a picture do display.
  18. FR700

    FR700 Heckler ™©®

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    Well played, Bruce, you Bard of the Bush. You still playing in the desert or are you home amongst the excessive XS's ?


    This is an entirely new build. Leprechauns kinda had the forward (mid, actually) low area earmarked for storage with an auxiliary fuel tank directly behind. It's not looking like that scenario is gonna play out. Bugger.

    46" track, 90 ftlb and absolutely no weight to speak off will make it an interesting thing to blat... blattt... Brappppppppppppppp!!!!!! Fuck, I can't wait to grow up to see what I'm gonna become.




    .
  19. kymbo

    kymbo kymbo

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    hello , thats one heavy looking shock on the chair wheel is it rear motocross shock .
  20. brstar

    brstar Long timer

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    Currently sunrise dam (gold).
    1 more day 2 more sleeps (or what little I seem to be getting here) then on the long skinny bus.
    If 5 seats across counts as skinny (fokker 100).
    Rollers, ballmill gearbox and a crusher.
    Its been quite the tour.
    3 mines in under 3 weeks.
    Tropicana
    Boddington
    & Sunrise.
    My Fournales arrive next week for the Guzzi.