DynoCams, 275 Grind, Welded Lobe GX390 Core Predator 420 13 HP Clone

Product Description

This cam is to be used in mild modified applications. It will require an upgraded spring package, billet rod, and billet flywheel.

Engine: 13HP Honda GX390

Specs
Engine: 390cc OHV Clone 13HP
Recommended Class: Modified
Target (MAX) RPM: 6500
Spring Pressure (In / Ex): 32 lbs Single Spring
Valve Lash (In/Ex): .003"
Ignition Timing: 93 Octane 28 Deg BTDC
110 Octane 32 Deg BTDC
Methanol 36 Deg BTDC
Compression Ratio: 10.2 to 1

Profile
Intake Exhaust
Open: 50.0 BTDC 88.5 BBDC
Close: 88.0 ABDC 50.0 ATDC
Lift: .276" .276"
C/L: 108.0 ATDC 110.0 BTDC
DUR @ 50: 239.5 Deg 238.8 Deg

THE LOBES ON THIS CAM ARE WELDED.

Processed and ground by the hard working employees of DynoCams in the USA.