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Old 02-18-2010, 10:08 PM   #21
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Quote:
Originally Posted by bumblebee View Post
Man, that thing sure revs slow!

It took like a whole minute to get to 14,000 rpm, my Suzuki revs much faster.
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Old 02-18-2010, 10:35 PM   #22
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Holy chit, that was AWESOME.
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Old 02-18-2010, 11:33 PM   #23
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That is amazing.

And the cams go only half as fast as the crank.

Now think of the piston speed.

You can start to see why a long stroke crusier will not rev like sport bikes that have with half the stroke.

Very cool video
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Old 02-18-2010, 11:37 PM   #24
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Imagine the electronics to ignite the spark plug and switch the injector each other revolution.
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Old 02-18-2010, 11:51 PM   #25
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^^^
That is wild because if its not dead on it does not run.
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Old 02-19-2010, 04:04 AM   #26
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what really gets me, is not the speed, itself, but that the springs can do the job without doing any kind of valve "float".

everything else i get, because it is timed. much like the guns shooting thru the balde arc, of a WWII/WWI aircraft.

but the springs, a different story. you can manually compress the spring, but the REURN is simply left to its own speedy stored energy.
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Old 02-19-2010, 08:37 AM   #27
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WOW.. kewl..
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Old 02-19-2010, 09:44 AM   #28
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And that folks is why proper oil change interval and high quality oil is needed in our engines .
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Old 02-19-2010, 03:43 PM   #29
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Old 02-19-2010, 08:57 PM   #30
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wow! nice
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Old 02-19-2010, 09:08 PM   #31
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Quote:
Originally Posted by 1340HIGH View Post
Now think of the piston speed.
Very cool video

if i remember correctly in an issue of SPORT RIDER magazine about 12-13 years ago..."piston speeds travelling more than 5,000 FPM, are typically asking for broken bits."


something close to that.
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Old 02-19-2010, 09:13 PM   #32
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Quote:
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As much damage as we dish out on these machines. you would think they would break alot faster then they actually do. nice find.
what damage do you dish out on your machine?? like going to starbucks??
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Old 02-19-2010, 11:23 PM   #33
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Just to put it in perspective, this thing has a 14,200 RPM redline.
Thats nearly 237 engine revolutions per second.
That means the cam is spinning 118 times per second at redline.
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Old 02-20-2010, 12:03 AM   #34
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sweet. saw a vid a while back of a tiny camera attached to the end of a sparkplug, you could see the air and fuel mixture rush in, piston come up, mixture ignite, piston go down, and everything rush out when the exhaust valve opened.
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Old 02-20-2010, 02:50 PM   #35
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great video!
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Old 02-23-2010, 08:30 AM   #36
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that was great
thanks for sharing
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Old 02-23-2010, 10:12 PM   #37
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http://video.google.com/videoplay?do...0492893860613#
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Old 02-24-2010, 12:00 AM   #38
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Quote:
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yeah that's it
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Old 03-09-2010, 02:53 PM   #39
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Original video removed by user.

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