Dynamite 12S and 12SPD's ground breaking performance can be attributed in part to their unique 3-port case induction. The 3rd port is cut into the crankcase for better scavenging. Dynamite is the first to bring this feature to a .12 size engine.

Both engines utilize double taper cylinder technology to create a tighter seal for maximum performance. The racing carburetors for the 12S Series feature slotted screw needle adjustment, adjustable banjo nipple position, and a rubber seal on the throttle barrel. The Pro Mix™ carburetor has a broad adjustment range that makes tuning a snap. It is also available individually for those who just have to have the best in carburation. Other engine features include dual ball bearing supported crankshafts, huge oversized red anodized heat sink heads, and a two piece head design with combustion head button.

Two versions are available - the 12S, perfect for a wide range of sport applications, and the 12SPD, best suited for competition and serious sport racers.

Features

* Perfect for sport applications
* 3-port case induction
* Rotary carburetor