308 Grind, Tool Steel Billet, Clone 13HP
- The 308 is a great all-around cam. It features a wide powerband and great "pulling" characteristics. Upgrading the valve springs are mandatory. If your rules allow, upgrading to a billet connecting rod and flywheel is also mandatory. A carb with a 1.33" or 34mm venture is recommended. The use of big valves is highly recommended.
- Tool Steel Billet cores are the best choice in high RPM applications.
- The two piece design of the Tool Steel Billet core allows you to advance or retard the cam to meet your application needs.
|Engine:||390cc OHV Clone 13HP|
|Target (MAX) RPM:||7200|
|Spring Pressure (In / Ex):||48-50 lbs Dual Spring|
|Valve Lash (In/Ex):||.003"|
|Ignition Timining:||Pump Gas Not Recommended|
|110 Octane 32 Deg BTDC|
|Methanol 36 Deg BTDC|
|Compression Ratio:||12 to 1|
|Open:||53.5 BTDC||91.0 BBDC|
|Close:||91.0 ABDC||55.1 ATDC|
|C/L:||108.0 ATDC||108.0 BTDC|
|DUR @ 50:||244.2 Deg||244.6 Deg|