Interceptor Specifications & Downloads

Interceptor Programmable Ignition 


The Interceptor Ignition from RetroMotion Innovations works by "intercepting" the trigger signal between the distributor and the coil, allowing digital control of centrifugal and vacuum advance.  You can keep your vehicle appearance completely original as the unit can be easily hidden under the dash.  On most classic cars, Interceptor connects directly to the stock (non high-energy) coil.  It can be used with high energy coils if installed in conjunction with an aftermarket ignition amplifier.

Interceptor is available in both vacuum and boost versions. Dwell is automatically calculated to combine strong sparks at all times with minimum load on your coil.  The dwell angle can be entered manually if preferred.

The first step is to lock your current distributor to disable it's mechanical advance, to allow Interceptor to have complete control of the timing curve.  After installation and wiring, the software can be used to adjust all timing characteristics, set a rev limit etc.  We encourage you to download the software to your PC right now and try it out!


Accepted Input: Points, Hall effect, reluctor, crank trigger, optical
Number of cylinders: 1 to 12
Available coil charging current: MAX 20 amps
Required coil resistance: 1.2 ohms or higher
RPM range: 0 to 10,000
Rev limiter: 2,000 to 10,000 RPM
Vacuum range: 0 to 20" Hg
Boost range: -0.5 to 1 bar
Dwell angle: Automatic

Supply voltage: 8-20v (12 volt Car) Negative Ground
Current draw: Less than 100mA
Operating temperature: -13ºF to 176F (-25ºC to 80ºC)

Interface: USB 2.0
Operating system: Windows XP, Windows 7, Windows 8, Windows 10

Downloads, Updates, & Forms

Interceptor PC Software (Released December 2017)

Product Registration

Instruction Manual (Revision E, 11-20-2017)


Back to Product Page