CarPhreakD
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I was actually kind of surprised myself that Honda did not create a V5 engine, especially considering how successful the NSR500's were in 500 GP racing. I mean, the NS500 was created for the oval piston engine (albeit the streetbikes cost almost $50k IIRC), so why not a V5?
The use of the engine as a stressed member of the motorcycle frame isn't new in itself, but I'm kinda rattled about how Honda went a step further and basically separated the bike into two separate frames attached to the engine. My concern would be chassis stiffness. The way the separate subframes bolt onto the engine would be very important. As well, what would this mean in terms of engine vibration and road feel? Especially when talking about a pretty much unbalanced V5 engine?
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chazcra
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this type of arrange is not a totally new concept it has been used in the pass by another company in racing form but can't remember the name of the company. the main advantage here would be weight saving hence the the chance of a bigger heaver v5.
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musicmanvin
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so basically what there doing, is building the engine into the frame?
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CarPhreakD
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Yeah, basically it's saying that the engine forms part of the frame. The V5 concept isn't anything new but nobody ever built a sportbike for the street that uses a V5.
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JMU R1
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CarPhreakD wrote:
I was actually kind of surprised myself that Honda did not create a V5 engine, especially considering how successful the NSR500's were in 500 GP racing. I mean, the NS500 was created for the oval piston engine (albeit the streetbikes cost almost $50k IIRC), so why not a V5? |
The V5 engined Honda was the RC211V which competed in Moto GP (the new name for the 500GP class) from 2002-2006. The oval-pistoned GP bike was the NR500. It did very poorly in racing but the 2-stroke NS500 that succeeded did go on to win a title, then the NSR500 went on to win many titles.
The use of the engine as a stressed member of the motorcycle frame isn't new in itself, but I'm kinda rattled about how Honda went a step further and basically separated the bike into two separate frames attached to the engine. My concern would be chassis stiffness. The way the separate subframes bolt onto the engine would be very important. As well, what would this mean in terms of engine vibration and road feel? Especially when talking about a pretty much unbalanced V5 engine?
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Yeah it will be really interesting to see how Honda will get all of that stuff to work well in a package.
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musicmanvin
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i dont know much about bikes and stuff but.. if you build the engine as a part of the chassis, wont that vibrate like hell? or would the Honda V5 engine be as smooth as silk and produce little or no vibration at all?
im trying to look at the diagram but all i see is lines.. i think can barely tell where the engine is and where the 2 piece chassis is, but its so hard to really tell how it works..
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Dren
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It's how Formula 1 cars are done. The engine an tranny are part of the frame with suspension components mounting to them. If you design it well it should work nicely.
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Nick GravesX
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musicmanvin wrote:
i dont know much about bikes and stuff but.. if you build the engine as a part of the chassis, wont that vibrate like hell? or would the Honda V5 engine be as smooth as silk and produce little or no vibration at all?
im trying to look at the diagram but all i see is lines.. i think can barely tell where the engine is and where the 2 piece chassis is, but its so hard to really tell how it works..
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It's quite simple, really.
1. They've now put the V almost the right way up, instead of on its side.
They've bolted the Y-shaped steering yoke to both cylinder banks.
They've bolted an upright to teh rear bank & crankcase, hung the trailing arm off the bottom & cantilevered the seat off the top of that.
A short-stroke V5 should be fairly smooth, as was the old V4. They do suffer vibration periods, but at specific revs.
Try a 600 single or any Harley V-twin, if you want to know what vibration is!
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