Valvespring at 7000 RPM
Nascar engine from 7 years ago. 7000rpm with a .700 cam lift.
Renault 3.0L V10 at 20,000 RPM
Renault 3.0L V10 between 16,000 and 20,000 RPM (Renault 2.4L V8 at 20,000 RPM Some say its a V10 but I can only count 8 injectors...)
Overhead Cam at 14K RPM
This video shows an operational cutaway of a BMW S1000RR — a 193HP superbike — bumping against its 14,200RPM redline. A cam and valvetrain at 118 cycles per second is an amazing sight (and sound)