
Engine: | Harbor Freight Predator 224cc, Tillotson 224cc |
---|---|
Recommended Class: | Modified |
Target (MAX) RPM: | 8200-8400 |
Spring Pressure (In / Ex): | 32 lbs |
Valve Lash (In/Ex): | .003" |
Ignition Timing: | 34 Deg BTDC |
Intake | Exhaust | |
---|---|---|
Open: | 54.6 BTDC | 92.3 BBDC |
Close: | 90.0 ABDC | 53.2 ATDC |
Lift: | .278" | .278" |
C/L: | 108.0 ATDC | 110.0 BTDC |
DUR @ 50: | 258.7 Deg | 258.6 Deg |