Dynatek, Dyna Miniature coil. Twin tower, 12V, 0.5 ohm

Dual coil for 2 spark plugs per coil. Dual ignition coil. Sold individually, two are required for use on twin-plug heads (4 spark plugs in total) in single-fire ignition operation. Primary resistance of 0.5 ohms, designed for Twin Cam ignition systems that are designed to be used with low-resistance Twin Cam-style coils. 40,000 volt output. One of the smallest coils available. Ideal for customs where coils must remain hidden. Overall dimensions 4.2" x 2.3" x 1.6" (10.7cm x 5.8cm x 4.1cm). Mounting hole spacing from 2.9" min. to 3.5" max. (7.3cm to 8.8cm).
Note: It is recommended to use ignition modules and coils from the same manufacturer. Mixing different brands can cause premature failure.
Note: The standard Twin Cam ignition is a single fire ignition system.
Note: Difference between Single Fire and Dual Fire:
- Dual Fire - This is how earlier, pre-Twin Cam engines operate. A single coil is used and both spark plugs fire simultaneously. This is the simplest system. The "wasted" spark is sometimes said to reduce power.
- Single Fire - This is how stock 00-up Twin Cam engines operate. Two separate coils fire the spark plugs independently and only the spark plug of the cylinder on the compression stroke is fired. These engines are said to vibrate less and can improve power. The effects become more noticeable with more aggressive camshafts and higher RPMs.


Specifications


Brand
Dynatek


Application
99-17 Twin Cam models in custom applications. (0.5 Ohm, carbureted or fuel injected) (NU)


Width
2.3 inch


Packaging weight
0.449 kg


HS Code
85113000


Motorcycle family
DYNA, SOFTAIL, SPORTSTER, TOURING, TRIKE


Original name
Dynatek, Dyna Miniature coil. Dual tower, 12V, 0.5 ohm