Help - Search - Members - Calendar
Full Version: OT: Now that's some Revs!
914World.com > The 914 Forums > 914World Garage
Ferg
BMW S1000RR motorcycle engine cutaway at 14,200 RPM


https://www.youtube.com/watch?v=VSDa-EUT3ZE&feature=player_embedded



Making 193bhp and 83lb/ft of torque, the 2010 BMW S1000RR is the most powerful 1000cc production bike on the market.
davidj
WoW!! Thats wild. See the valve springs and retainers rotating?
nykthebartender
I feel like I should have safety glasses on.
Todd Enlund
QUOTE(davidj @ Feb 22 2010, 12:10 PM) *

WoW!! Thats wild. See the valve springs and retainers rotating?

Not only that, but the one on the right, the retainer is floating off the spring enough to rotate independent of the spring.
ahdoman
That rotation is interesting. I don't know if they actually switched directions or if it's a result of the RPM's outdoing the FPS of the video.
Katmanken
An education on resonance modes.

You can see the spring coils go through a series of resonance modes as the engine is accelerating- (coil gaps changing)

And the system goes through resonance modes as shown by the changing rotation of the spring and retainer.

A variable strobe light would have shown more.
Mr.242
All I see is............

Where would we be without YOUTUBE?

What will we get to see in another 20 years! The library is growing daily.


True on other comments.....
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Invision Power Board © 2001-2024 Invision Power Services, Inc.