What is MSD Ignition?

What is MSD Ignition?

If you’ve been involved in hot rodding for any length of time, you’ll know these infamous letters: MSD. They stand for Multiple Spark Discharge, a patented design by MSD Ignition that fires your spark plug multiple times rather than the single time that the factory ignition does.

How does a capacitive discharge ignition work?

A capacitor discharge ignition works by passing an electrical current over a capacitor. This type of ignition builds up a charge quickly. A CDI ignition starts by generating a charge and storing it up before sending it out to the spark plug in order to ignite the engine.

What are the 5 ignition systems?

Ignition 101: A Quick Guide to 5 Common Ignition System Designs

  • Breaker-Point Ignition System.
  • High Energy (Electronic) Ignition System.
  • Distributorless Ignition System.
  • Coil-on-Plug (Direct) Ignition.
  • Capacitor Discharge Ignition (CDI) System For Small Engines.

What are the 4 types of ignition system?

Currently, we recognize four types of ignition systems used in most cars and trucks: conventional breaker-point ignitions, high energy (electronic) ignitions, distributor-less (waste spark) ignition and coil-on-plug ignitions.

What is primary and secondary ignition?

Ignition systems have two circuits that result in a spark being fired at the end of a spark plug. The primary circuit is between the battery and the ignition coil. The secondary circuit is between the ignition coil and the spark plug.

What is a Hei type coil?

High energy ignition, also known as H.E.I., is an electronic ignition system designed by the Delco-Remy Division of General Motors. It was used on all GM vehicles, at least in the North American market, from 1975 through the mid-1980s.

What is the difference between TCI and CDI?

Difference between TCI and CDI : CDI Ignition makes the spark by discharging a capacitor loaded with high voltage about 200 to 450 volt from the ignition coil by using an SCR known Thyristor while TCI Ignition charges the coil with the current before the spark is done. Spark is done when the current is cut suddenly.

What controls dwell in the electronic ignition system?

The dwell is set by the relationship of the contact points to the rotating distributor cam and does not vary. The limiting factor is how fast we can reliably open (for a spark) and then close the points to let the coil primary current build up again, points ‘bounce’ and durability are issues.

What are the 4 types of ignition systems?

What are the 2 types of ignition systems?


  • Conventional breaker-point ignition (in use since the early 1900s)
  • Electronic ignition (popular since the early 1970s)
  • Distributorless ignition (introduced in the mid-1980s)

What does a Kohler MDI module conversion kit do?

Genuine Kohler Mdi Module Conversion Kit, 25 707 03-S, use on CH CV command engines only. Free Shipping, No Tax, 2 to 3 Day Delivery. Replaces ignition modules with 2 or 3 terminals.

Why choose MSD 6-series ignitions?

The line of MSD 6-Series Ignitions are the most popular aftermarket ignitions in the world due to our race-proven performance on the track and our reliability on the street!

What happened to the Kohler DSAI ignition system?

The Kohler 12 volt Digital Spark Advanced Ignition (DSAI) has been discontinued for all Courage and Command Twins (not CV/CH940-1000) and replaced with Magneto Digital Ignition (MDI). All new engine specs that were originally equipped with the DSAI system have been upgraded to the new MDI ignition.

Why choose MSD engines?

Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power and endurance. Today MSD is developing electronics for your entire powertrain.

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