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Author Topic: Safe Piston speed  (Read 28995 times)

JQrr

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Re: Safe Piston speed
« Reply #15 on: April 19, 2005, 09:10:08 AM »
Quote from: 600RRpilot on April 19, 2005, 08:48:46 AM
i heard something about a nuclear powered 600rr coming out sometime in 2018. ???

 :P :P 
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Crash

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Re: Safe Piston speed
« Reply #16 on: April 19, 2005, 09:26:45 AM »
Quote from: 600RRpilot on April 19, 2005, 08:48:46 AM
i heard something about a nuclear powered 600rr coming out sometime in 2018. ???

I dont know if they are going to have it ready by then but you can bet by 2009 we will be seeing hydrogin (sp) sportbikes. :spank:
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JQrr

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Re: Safe Piston speed
« Reply #17 on: April 19, 2005, 09:35:01 AM »
Quote from: Crash on April 19, 2005, 09:26:45 AM
I dont know if they are going to have it ready by then but you can bet by 2009 we will be seeing hydrogin (sp) sportbikes. :spank:

HYDROGEN.  Hydrogin is something you might find at a bar...
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Crash

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Re: Safe Piston speed
« Reply #18 on: April 19, 2005, 10:50:45 AM »
Quote from: JQrr on April 19, 2005, 09:35:01 AM
HYDROGEN.  Hydrogin is something you might find at a bar...

Did you notice the (sp) after that?  God damn dude, I said it was misspelled and you still went spelling Nazi on me. :-X ::)
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some_guy79

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Re: Safe Piston speed
« Reply #19 on: April 19, 2005, 12:35:11 PM »
stop flaming the guy, he asked a valid, if uninformed question. Maximum piston speed is an important factor in engine wear and catastrophic failure. The problem is, no one outside the walls of the  Honda engineering department is going to know about that. Okay, maybe some people on top level race teams, but still very few.
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JQrr

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Re: Safe Piston speed
« Reply #20 on: April 19, 2005, 12:48:53 PM »
Quote from: Crash on April 19, 2005, 10:50:45 AM
Did you notice the (sp) after that?  God damn dude, I said it was misspelled and you still went spelling Nazi on me. :-X ::)

I saw the (sp).  You weren't sure, so I corrected you.  Spelling Nazi?  Haha.  Shut up and get back on your knees, beeotch. :spank:
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NewRedRider

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Re: Safe Piston speed
« Reply #21 on: April 19, 2005, 02:02:12 PM »
Quote from: some_guy79 on April 19, 2005, 12:35:11 PM
stop flaming the guy, he asked a valid, if uninformed question. Maximum piston speed is an important factor in engine wear and catastrophic failure. The problem is, no one outside the walls of the Honda engineering department is going to know about that. Okay, maybe some people on top level race teams, but still very few.
So why would one ask such a question? Does he want to reset the rev limiter? If it's a stock engine it wouldn't make any sense as the peak HP is around 13,800rpm. Is he building an engine with a cam, valve and head work? I just don't see the point of knowing that information. ??? Please explain.

And don't take our flaming personal. We just like to have fun around here. Skin thickens over time so stick around. :thumb:
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honiton

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Re: Safe Piston speed
« Reply #22 on: April 19, 2005, 04:22:12 PM »
Quote from: 600RRpilot on April 19, 2005, 08:48:46 AM
i heard something about a nuclear powered 600rr coming out sometime in 2018. ???

 :P :P :P :P 

wait to be on the thing when it blows up.. Oh wait, might be a good way to die, because you wont feel anything..
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HIROLLER

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Re: Safe Piston speed
« Reply #23 on: April 28, 2005, 08:50:08 AM »
People on this thread are not aware of the physics of engine builiding. Two engines that are turning the same RPM can have different piston speeds. If the strokes, rod length, or pin hieght are different this will all change piston speed. I have built automotive drag race engines for years and this is an issue that can win or loose a race. This is definitly critical with a small cube engine that is naturally aspirated. This is also the reason that small engines can need massive amounts of air (large throttle bodies) that larger engines do not have. RPM is not the reason! Piston speed determines the V/E of the design!
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HIROLLER

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Re: Safe Piston speed
« Reply #24 on: April 28, 2005, 08:57:07 AM »
Also, if you wanted to spin the engine less RPM and have the same or more piston speed, knowing these factors can allow you to build the engine to a desired purpose, maybe other forms of racing that does not involve curves...
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Jeff

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Re: Safe Piston speed
« Reply #25 on: April 28, 2005, 09:06:48 AM »
HIRoller, that's all fine and well, but we're talking about a STOCK cbr600rr which makes the question somewhat pointless...
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600RRpilot

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Re: Safe Piston speed
« Reply #26 on: April 28, 2005, 09:09:52 AM »
Quote from: HIROLLER on April 28, 2005, 08:50:08 AM
People on this thread are not aware of the physics of engine builiding.


exactly...these things are takin into consideration and produced during production.  your not going to change piston speed without MAJOR overhaul or BIG money parts. piston speed cannot be changed without changing crankshafts, rods, pistons themselves, etc etc etc.  now if your looking for max reccomended for this engine......to...lets say.....change the rev limiter.......then thats different.  but idk why you would want to anyway.  honda's already done all this research making the engine.  i understand there is such thing as piston speed......but i dont see the practical use for it as a figure unless your building an engine from aluminum stock and up.   if there is in fact something that is relavant to and i can use the numbers....please enlighten me  (no sarcasm...im serious i want to learn about this more)  
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HIROLLER

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Re: Safe Piston speed
« Reply #27 on: April 28, 2005, 09:25:48 AM »
I couldn't agree more with you both. Only if you are building from the ground up would you concider such factors. As for raising the rev limit to increase piston speed, as you all have stated, peak hp was made 2000 RPM ago why torture it for no reason. Your no going to change that fact no matter it you make it turn 25000!!! :thumb:
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600RRpilot

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Re: Safe Piston speed
« Reply #28 on: April 28, 2005, 09:27:32 AM »
Quote from: HIROLLER on April 28, 2005, 09:25:48 AM
I couldn't agree more with you both. Only if you are building from the ground up would you concider such factors. As for raising the rev limit to increase piston speed, as you all have stated, peak hp was made 2000 RPM ago why torture it for no reason. Your no going to change that fact no matter it you make it turn 25000!!! :thumb:

 ;D
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TopgunRR

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Re: Safe Piston speed
« Reply #29 on: April 28, 2005, 12:30:01 PM »
Quote from: HIROLLER on April 28, 2005, 08:50:08 AM
People on this thread are not aware of the physics of engine builiding.
hey! some of us are. you bring up good points, though.
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