June 24th, 2014, 04:59 PM
Joined: Jun 2007
From: south east WA Australia
I Ride: 2008 700FK, 2002 628FST
Originally Posted by smokin
action at 14000 rpm~
everything is beyond our wildest illusion...
P/s: look at 0:58 onwards... valve start spinning...
Valve materials integrity & weight is ultra
important at high rpm. Any valve float & collapse
means severe damage to your engine..
The valves cycle at half the speed of the engine's
crankshaft, so at 9000 rpm the valves open 4500
times per minute, or 75 times each second or
"The peak rpm that we can see here is at 14000
rpm, so the valve will open 7000 times per
minute, or 116.66 times per second, or once for
every 8.57 milliseconds. So how an F1 engine at
18000 rpm.-just like a strange illusion"
This is a head off a bmw 1000.
I now cringe when I hear four stroke.
2010 BMW S1000RR cut engine 4 valve action 14000 ?: 2010 BMW S1000RR cut engine 4 valve action 14000 rpm - YouTube
Watch "2010 BMW S1000RR cut engine 4 valve action 14000 ?" on YouTube