Product DescriptionF-275 Cam by Dyno for the old style non "hemi" head Harbor Freight Predator 212cc Engine. Welded Lobe Cam for Modified Classes. This cam has a .278 lift and has maximum open valve duration (Duration at 50 - 258.8 Degree, Duration at 200 - 158.1) Max RPMs 8200-8400 Spring Pressure recommended IN/EX 32lbs Be careful with ratio rockers with this cam. The ratio combined with the monster duration of this cam may leave the valve open too long.
This cam has very aggressive ramps and requires an upgraded spring package, billet rod, and flywheel. Use bored stock or Tillotson carb.
Engine: 212cc OHV Predator
Target (MAX) RPM: 8200-8400
Spring Pressure (In / Ex): 32 lbs
Valve Lash (IN/EX): .003"
Ignition Timining: 32 Deg BTDC
Dur @ .050": 258.7 Deg.
C/L: 108 ATDC
DUR @ .050": 258.6 Deg.
C/L: 110 BTDC
THE LOBES ON THIS CAM ARE WELDED.
Processed and ground by the hard working employees of DynoCams in the USA.
Special Order Stock 10+