Unreal.
BMW S1000R engine valves at 14,000 rpm
- Thread starter Hokiefyd
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Was that taken with a high speed camera?
Neat. Seems so very crude, really.
robert
robert
I don't think it's float, I think it's just the speed of the valves and the frame rate of the camera aligning at certain frequencies. But I could be wrong.
I don't know the speed or specification of the camera.
I don't know the speed or specification of the camera.
Those valves are definitely turning from the vibration. Crazy. I'd like to see the pistons too!
Interesting to see how quickly they rotate
Valves are supposed to rotate! I don't think we saw any float, it just looked that way because of the camera-valve harmonics.
robert
robert
Originally Posted By: Hokiefyd
I don't think it's float, I think it's just the speed of the valves and the frame rate of the camera aligning at certain frequencies. But I could be wrong.
I don't know the speed or specification of the camera.
I was talking about the rotation, not the camera framerate effect.
I don't think it's float, I think it's just the speed of the valves and the frame rate of the camera aligning at certain frequencies. But I could be wrong.
I don't know the speed or specification of the camera.
I was talking about the rotation, not the camera framerate effect.
Those Germans; they are so far ahead of us....
Originally Posted By: robertcope
Valves are supposed to rotate! I don't think we saw any float, it just looked that way because of the camera-valve harmonics.
robert
+1
Valves are supposed to rotate! I don't think we saw any float, it just looked that way because of the camera-valve harmonics.
robert
+1
Here's one of the cams/springs. It's hard to believe springs can spring back that quickly!
I know they are supposed to rotate, I just didn't think they rotated that fast.
Originally Posted By: Bluestream
Those Germans; they are so far ahead of us....
Back in the late 60s the Honda 350s would run for long periods of time at 10,500 rpm. Some racing Honda M/C did even higher RPMs.
Those Germans; they are so far ahead of us....
Back in the late 60s the Honda 350s would run for long periods of time at 10,500 rpm. Some racing Honda M/C did even higher RPMs.
Originally Posted By: Steve S
Originally Posted By: Bluestream
Those Germans; they are so far ahead of us....
Back in the late 60s the Honda 350s would run for long periods of time at 10,500 rpm. Some racing Honda M/C did even higher RPMs.
The CB92 Benly would redline at 10,500 rpm in the very early '60s.
Honda's racing 4 cylinder 4 stroke 125 redlined at 22,000 rpm...in 1967.
Originally Posted By: Bluestream
Those Germans; they are so far ahead of us....
Back in the late 60s the Honda 350s would run for long periods of time at 10,500 rpm. Some racing Honda M/C did even higher RPMs.
The CB92 Benly would redline at 10,500 rpm in the very early '60s.
Honda's racing 4 cylinder 4 stroke 125 redlined at 22,000 rpm...in 1967.
Originally Posted By: Steve S
Originally Posted By: Bluestream
Those Germans; they are so far ahead of us....
Back in the late 60s the Honda 350s would run for long periods of time at 10,500 rpm. Some racing Honda M/C did even higher RPMs.
I was not referring to the RPM's..
Originally Posted By: Bluestream
Those Germans; they are so far ahead of us....
Back in the late 60s the Honda 350s would run for long periods of time at 10,500 rpm. Some racing Honda M/C did even higher RPMs.
I was not referring to the RPM's..
Originally Posted By: Spazdog
Honda's racing 4 cylinder 4 stroke 125 redlined at 22,000 rpm...in 1967.
Really? Wow; a reciprocating piston engine at 22,000 rpm is mind-boggling.
Honda's racing 4 cylinder 4 stroke 125 redlined at 22,000 rpm...in 1967.
Really? Wow; a reciprocating piston engine at 22,000 rpm is mind-boggling.
That's a lot of oil vapor flying around in there. gives you an idea of what PCV is pulling through besides blowby.
Gives me some respect for my old Honda 600's that spent a lot of time at or above 14,000 rpm and rarely broke.
Gives me some respect for my old Honda 600's that spent a lot of time at or above 14,000 rpm and rarely broke.
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