Aces High Bulletin Board
General Forums => The O' Club => Topic started by: TPIguy on September 06, 2003, 03:52:11 PM
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(http://www.btinternet.com/~bill.ashworth/images/rally20031.jpg)
(http://www.btinternet.com/~bill.ashworth/images/rally20037.jpg)
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Looks more like an engine on 2 wheels to me
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looks great, but that ehxaust will kill the engines.
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That looks like a two stroke to me. Do you have any more info on it TPI?
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wheels are too thin
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Does not look very practical :D
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cool, a self propelled engine-stand. bet it beats the hell out of manually draging them around the shop
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I cant belive this is serious.... BTW notice how the coolling fins are not aligned with the airflow...
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the engine(s?) might not originaly been designed for that aplication. ;)
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so he married a hole pile of 2 strokes together .... it probely runs but id say from looking at the carb size and set up , along with the fact that it doesnt have a tuned exhaust pipe for the frequency of a two stroke (The pipe chamber controls the power band ) each bank probly has to fire at the same time .... and with say what looks like 6 44 mikuni's for carbs that wont even be close to enough fuel/ air for it. (they look like 750 kawi jugs in the pic)
And by the way were's the shaft or the chain ???? its kinda hard to see one in the pics ..... take note of the small boxed swing arm.
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"For display purposes only?" Think so. Also think the guys standing close to it in the first pic have something odd about them too.;)
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Originally posted by Roscoroo
so he married a hole pile of 2 strokes together .... it probely runs but id say from looking at the carb size and set up , along with the fact that it doesnt have a tuned exhaust pipe for the frequency of a two stroke (The pipe chamber controls the power band ) each bank probly has to fire at the same time .... and with say what looks like 6 44 mikuni's for carbs that wont even be close to enough fuel/ air for it. (they look like 750 kawi jugs in the pic)
And by the way were's the shaft or the chain ???? its kinda hard to see one in the pics ..... take note of the small boxed swing arm.
Could also be old twin suzuki 500 jugs
:)
Moto
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Originally posted by Roscoroo
so he married a hole pile of 2 strokes together .... it probely runs but id say from looking at the carb size and set up , along with the fact that it doesnt have a tuned exhaust pipe for the frequency of a two stroke (The pipe chamber controls the power band ) each bank probly has to fire at the same time .... and with say what looks like 6 44 mikuni's for carbs that wont even be close to enough fuel/ air for it. (they look like 750 kawi jugs in the pic)
And by the way were's the shaft or the chain ???? its kinda hard to see one in the pics ..... take note of the small boxed swing arm.
You are right about the pipes not being "tuned" and the carbs being less than the ideal setup but I think it would still run ok, just not make as much power as it could otherwise.
The picture of the right hand side "appears" to show some kind of in line drive device for the rear wheel. I would just hate to blip the throttle on it, the torque might make spin...
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all i can see from the pic is on the right hand side is a boxed arm .... no chain visable either ... id need to see a pic from the right hand rear angle to be shure ... as for what the jugs are thats kinda hard to tell i was just guessing ... (my ex had a nice set of 36c jugs that looked like those )
they could even be yamaha jugs (not square enough to match my rd 350 though and the ports are wrong)
what i really wonder is how he timed each bank ... and how smooth it may actually run.
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I think the E48E and E42E designates the engine arrangement. Just a guess.
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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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Look at all those cylinders, its amazing!!!
A true piece of engineering and design. Very complicated if you ask me.
;)
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Hmm.. a no wheel drive.... cut down on broken parts I bet tho.
lazs
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That's no motorcycle.
That's a death trap with a bad case of "accident waiting to happen" written all over it.
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(http://www.btinternet.com/~bill.ashworth/images/rally20035.jpg)
looks like the botton engine is connected to a gearbox. Though, I can't find any info on this bike.
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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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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. :)
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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 ...
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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.
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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
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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...
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Now this is more of my kinda motorcycle.
:D
(http://www.geocities.com/MotorCity/Speedway/2785/Rebuild/30rebldbg.jpg)
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bah.. it lacks all the looks
(http://koti.mbnet.fi/fishu/temp/bh95.jpg)
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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
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I found this to be registered as a motorcycle: Vandenbrink Carver (http://www.topgear.com/servlet/tg?DEST=/content/jsp/individualRoadTest.jsp&EVENT=1010&MAKE=Vandenbrink:W9&MODEL=Carver:A0&roadTestNumber=01.html)
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
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Hmm so why does the 3rd pic show a 2 stroke expansion chamber buried out of sight top right of the rear wheel.
Either its for a starter engine for that monstrosity, or in fact a small 2 stroke is hidden behind the grill for motive power and the rest is just for show :)
And i would also lay money that its fabricated with barrels from a Kawasaki triple.
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or in fact a small 2 stroke is hidden behind the grill for motive power and the rest is just for show
correct cavalier
its just show. a big hollow block.
powered by a single 2 stroke.
and yes heads are based on the kh triples
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I saw this one at my work, guy told his friend is having one too (stock) and he wanted a faster one... :D
(http://www.kolumbus.fi/staga/moped.jpg)
(Pic taken w/ Nokia 7650, didn't had my camera with me)
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Oh and that's a Turbo-Charged Suzuki Bandit 1200cc with White Power USD fork and other goodies like intercooler.
Pretty fast I guess.