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Old 01-29-2001, 11:51 AM   #11
CYCLE_MONKEY
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Default Re: Honda Reveals Four-Stroke GP Motor!

Cough! VR1000 Cough!
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Old 01-29-2001, 11:58 AM   #12
RobGixxer750
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Default Is that sarcasm I detect in your voice?

haha. That had me thinking you were actually serious, until you said that last line! haha, thanks for the smile!



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Old 01-29-2001, 12:33 PM   #13
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Default Re: Honda Reveals Four-Stroke GP Motor!

That's correct. Harley Davidson tried to make a GP motor. I do'nt know what happened, but HD decided to sell them to a farmer in Nebraska. I believe the farmer uses them in kiddie-carts.
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Old 01-29-2001, 12:39 PM   #14
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Default Late breaking news....

The method Honda will use to aid in traction for the new power output takes advantage of the newly announced rule that GP bikes will now be allowed to have four wheels.
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Old 01-29-2001, 12:40 PM   #15
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Default Re: Honda Reveals Four-Stroke GP Motor!

Since everybody else is commenting...



Yes, all 4 strokes should have an oil filer, besides grit from the incoming air, a minor problem becomes a major one if grit from, say a cam follower get into the crank bearings or pistons. The cam might work for another 20 laps, get bad things in the mains or damage a piston and you are a DNF.



Why different displacement in different cylinders? Look at the spacing of the rear bellmouths (large) and the front bellmouths (small) Since the rear rods are far apart why not use the space to run bigger pistons?



Why are the three cylinders in the front? Weight distribution. All V engines have problems getting weight on the front wheel, the put the heavy bank as close to the front wheel as possible.



What will it mean? I don't know, the RC45 made more power than the 916/955/996 but never had the handling to go with the power. A post above mentions Honda's problems building a total package, that is not entirely true (see the NSR500 during the Mic D. years) but it has been a Honda tendency. I would say that a well designed twin (or even a 500 CC two stroke) might just win the first few years. Power is only useful if you can use it.



Whatever, it will be fun to watch. Honda has been, since the sixties, been the best engine company in motorcycling, it will be fun to see what they can do without the restrictions in WSB.
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Old 01-29-2001, 12:44 PM   #16
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Default Dirty Oil

Oil quickly becomes filled with combustion particulates and metal shavings in a running motor, especially in a new engine. As has been previously articulated, your car has a dry clutch and an oil filter, doesn't it?
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Old 01-29-2001, 01:02 PM   #17
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Default Four strokes=GOOD

Four strokes are great! I don't know where the guy that said they were dead is, but I said a while back that 2 strokes are nearing the end of their useful life for motorcycles, and I stick by that. The new Honda engine is one example of why this is, and why the new 4 strokes are going to dominate in 2002; can't wait to see what the other manufacturers are going to bring out. Wonder what MV Agusta has up their sleeves?
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Old 01-29-2001, 01:18 PM   #18
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Default It would be easier to...

Interesting concept, but wouldn't it be easier to have the onboard computer simply modify the fuel and ignition maps to adjust power levels rather than cutting out cylinders? That could be a very rough transition, much like a nasty rev limiter. In fact, Mondial, an Italian bike company which uses RC-51 engines in their chassis and body, has been developing this type of system. Check it out:

http://www.motorcycleworld.co.uk/BIK...ddate=26/01/01

It's a very good looking bike! Advanced technology, also.

So you have a good idea, but the Cadillac system was meant to improve fuel economy rather than modify power for traction. I think that there would be easier and more effective methods of accomplishing the same thing. Mondial could be on to something.
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Old 01-29-2001, 01:20 PM   #19
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Default Re: Honda Reveals Four-Stroke GP Motor!

Get over it? Ever heard a late 50's - late 60's (Colombo or Lampredi) Ferrari V-12? Or a Honda RC-166? Or an Group B Audi Quattro Rally I-5? Get over it indeed.... What is it about wanting to hear it, that implies I care about it's performance & engineering any less?
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Old 01-29-2001, 01:28 PM   #20
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Default Re: Honda Reveals Four-Stroke GP Motor!

LOL.. The company is Max Turbine. I spoke to thier Rep at Daytona (Mar. 1999) and this guy was wacked... he was ranting on and on about how their (something like 10 feet long) bike would dominate any other motorcycle on the planet.... get this in ALL AROUND performance.... Now correct me if I'm wrong, but doesn't "All Around" include stop, go, and cornering? The bike was neat to look at, and had something of a "Gee Whiz" factor, but it was longer than a Valkerie for God's Sake. I'd love to see what it would do at a place like the Streets of Willow. Of course at Black Rock or Bonneville I must conceed, he would have the superior machine.
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