Author Topic: Now THATS a motorcycle!  (Read 1225 times)

Offline Furball

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Now THATS a motorcycle!
« Reply #15 on: September 07, 2003, 06:35:14 AM »
dont care for the bike much, the pint of guiness in the background  of the first picture looks mighty tempting tho
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Offline type_char

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« Reply #16 on: September 07, 2003, 06:38:23 AM »
Look at all those cylinders, its amazing!!!

A true piece of engineering and design. Very complicated if you ask me.

;)

Offline lazs2

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« Reply #17 on: September 07, 2003, 09:58:34 AM »
Hmm.. a no wheel drive.... cut down on broken parts I bet tho.
lazs

Offline GrimCO

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« Reply #18 on: September 07, 2003, 10:01:44 AM »
That's no motorcycle.

That's a death trap with a bad case of "accident waiting to happen" written all over it.

Offline TPIguy

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« Reply #19 on: September 07, 2003, 10:02:29 AM »


looks like the botton engine is connected to a gearbox. Though, I can't find any info on this bike.

Offline Skuzzy

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« Reply #20 on: September 07, 2003, 10:13:18 AM »
Looks like 90cc Kawasaki jugs.  Whatever they are they are pretty small.  Even so 48 * 90 = 4.32L

All a moot point.  The gas tank could probably hold enough gas to idle for about 15 seconds.
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Offline GrimCO

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« Reply #21 on: September 07, 2003, 10:16:23 AM »
Hey Skuzzy,

You could mount the footpegs on the front cylinder so you're long legged self could actually be comfortable on a bike. Of course your gonna burn a hole in your jeans, but hey, no pain no gain. :)

Offline Roscoroo(work)

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« Reply #22 on: September 07, 2003, 12:06:36 PM »
Quote
Originally posted by type_char
Look at all those cylinders, its amazing!!!

A true piece of engineering and design. Very complicated if you ask me.

;)


actually it looks very simple ....(but im used to seeing wierd stuff like this)    

from this last pic you can see the shaft drive to the rear...
the engines probely had there cases cut and welded up in a jig ...then line honed  ... the crankshaft was the hard part to make it last and work correctly he needed to mill out a new one for each bank ..... the alum cases on the rear of the block house what i would guess is a gear set up to connect them all together with .  id say it runs and works ok ...

Offline Skuzzy

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« Reply #23 on: September 07, 2003, 12:15:35 PM »
I don't think it actually runs.  The exhaust pipes do not show any signs of heat.

And there would be a ton of heat, as you would have one firing pulse per 7.5 degrees of crank rotation, if it is setup for even firing between the 3 engines.

It might idle, but I doubt its been driven for any distance.
Roy "Skuzzy" Neese
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Offline Roscoroo(work)

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« Reply #24 on: September 07, 2003, 01:00:53 PM »
i would fire them in banks evenly  or a 90 deg offset every other cyl. remember there 2 strokes .... and then give them an offset order in the timing of the banks to each other  so it would run smooth  (sort of like a 6 cyl firing order)   in the left side pic if you look closely it does look like it has black from the exhaust leaking at the lower bend along with an oil leak that looks burned onto it ..
the exhaust looks like it has been hi temp coated though .... and that doesn't "blue " or blacken as fast as open stainless, alumisteel ,or plan steel

im shure it has a trailer option that goes with it .... that  thing would rip that tire off the rear above an idle.

it just wouldnt have a power band at all because of the exhaust.
its hard to say if its exhaust frequency would let it run correctly .


oh and Skuzzy can you give a lookie into the tech posts and help me solve my hosting problem .....thx
« Last Edit: September 07, 2003, 01:10:10 PM by Roscoroo(work) »

Offline MrCoffee

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« Reply #25 on: September 07, 2003, 04:22:09 PM »
Six banks of 8 cylinders and crankcases all connected by gears/chain at the aft side driving the rear wheels via a drive shaft housing/swing arm. Six engines. Spark or ignition is handled on the opposite side of the gears near the carbs (Mukini slides). Probably done with a one single stator/rotor and a modified programable ignition module or coil booster. You might then think firing order is probably similar to an inline six or perhaps double inline four and 1 and 8 firing off and the firing pattern traveling towards each other 1--><--8 or something. But since its a two stroke 1/2 of the cylinders must fire every 180 degreees of crankshaft revolution. My guess is that it fires sequentially up(1,3,5,7) down(2,4,6,8) each set of cylinders up/down corrosponding with an opposite bank of cylinders like an X engine. No reason to fire each bank like a V6 arrangement since each bank can share a set of cylinders in firing order oppsite to another bank. Also the crankcases were probably fused together per bank of eight cylinders. This would allow seperate crankcase breathing per cylinder, provide the most firing per 360 degrees, and stress the crankcase arrangement the least along the longitutional axis.

As for tuning and performance. The drive shaft doesnt look very rugged so I bet the configuration is more for show. The engine probably does not rev very high so exhaust scavenging isnt as important. As far as two strokes go, in looking at the exhaust pipes and carb configuration, it probably is tuned to just run as smooth as possible and not overheat at low RPMs. He could also have slightly changed the intake and exhaust port shape/arrangement to better handle low lower RPMs. Each cylinder probably produces  much less HP than its original configuration but hes got alot of cylinders. Even if he were making only 10 HP each cylinder assuming each is a 90cc (in normal tuned config a 90cc might get 17-19 HP), thats 10*48=480 HP.

The bike probably doesnt rev or ride very well and is noisy as hell.

Cough * cough, just my thoughts. Feel free to correct me if you disagree...
« Last Edit: September 07, 2003, 05:01:45 PM by MrCoffee »

Offline MrCoffee

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« Reply #26 on: September 07, 2003, 07:47:22 PM »
Now this is more of my kinda motorcycle.

:D


Offline Fishu

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« Reply #27 on: September 07, 2003, 08:06:52 PM »
bah.. it lacks all the looks

« Last Edit: September 07, 2003, 08:11:12 PM by Fishu »

Offline Devourer

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« Reply #28 on: September 07, 2003, 08:24:25 PM »
If its super-insane-engine configuration-unpractical-suicide-speed freak bikes were talking about, the Dodge Tomahawk is my favorite. :)

http://www.allpar.com/cars/concepts/tomahawk.html

Offline Fishu

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« Reply #29 on: September 08, 2003, 02:53:55 AM »
I found this to be registered as a motorcycle: Vandenbrink Carver

Watched the show from BBC World when they showed road test of this, simply a fantastic looking ride :D
Should go nicely through the traffic