This cam is easy on the valve train and has a very wide power band. This cam requires an upgraded spring package, billet rod, and billet flywheel.Engine: 13HP Fits Honda GX390, Predator 420, DuroMax 420/440, and most 13 HP clone engines
SpecsEngine: 390cc OHV Clone 13HPRecommended Class: ModifiedTarget (MAX) RPM: 7200Spring Pressure (In / Ex): 48-50 lbs Dual SpringValve Lash (In/Ex): .003\"Ignition Timing: Pump Gas Not Recommended110 Octane 32 Deg BTDCMethanol 36 Deg BTDCCompression Ratio: 12 to 1
ProfileIntake ExhaustOpen: 53.5 BTDC 91.0 BBDCClose: 91.0 ABDC 55.1 ATDCLift: .308\" .308\"C/L: 108.0 ATDC 108.0 BTDCDUR @ 50: 244.2 Deg 244.6 Deg
DynoCams 308 Grind, Welded Lobe Cam, Fits GX390, Predator 420 13-16HP Clone
This cam is easy on the valve train and has a very wide power band. This cam requires an upgraded spring package, billet rod, and billet flywheel.
Engine: 13HP Fits Honda GX390, Predator 420, DuroMax 420/440, and most 13 HP clone engines
Specs
Engine: 390cc OHV Clone 13HP
Recommended Class: Modified
Target (MAX) RPM: 7200
Spring Pressure (In / Ex): 48-50 lbs Dual Spring
Valve Lash (In/Ex): .003\"
Ignition Timing: Pump Gas Not Recommended
110 Octane 32 Deg BTDC
Methanol 36 Deg BTDC
Compression Ratio: 12 to 1
Profile
Intake Exhaust
Open: 53.5 BTDC 91.0 BBDC
Close: 91.0 ABDC 55.1 ATDC
Lift: .308\" .308\"
C/L: 108.0 ATDC 108.0 BTDC
DUR @ 50: 244.2 Deg 244.6 Deg
THE LOBES ON THIS CAM ARE WELDED.
Processed and ground by the hard working employees of DynoCams in the USA.
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