What is a TFI ignition coil?
Starting in the early 80’s, Ford started switching over to TFI (Thick Film Ignition). The coil is designed to produce a much higher voltage burst for each spark. This hotter spark will help the combustion process. The TFI upgrade replaces a few easy to access parts on the distributor, the coil, spark plugs and wires.
Does a MSD Blaster 2 coil need a ballast resistor?
This Blaster Coil is supplied with a ballast resistor. If your application uses a points distributor, the ballast must be used. Late-model electronic ignitions or an MSD Ignition do not require the ballast….Features:
| Brand | MSD |
|---|---|
| Product Type | Coil |
| Secondary Resistance | 4.5K OHMs |
| Spark duration | 350 uS |
| Turns Ratio | 100:1 |
How much is an MSD coil?
MSD 8207 Blaster Ignition Coil
| List Price: | $70.19 Details |
|---|---|
| You Save: | $15.83 (23%) |
What does the TFI do?
What Does a TFI Do? the purpose of a TFI module is to control the spark output of the ignition system. A signal is sent from the TFI to the ECU, where the ECU processes the received signal and correspondingly outputs the correct spark control for engine timing (advance/retard).
How does a TFI module work?
The TFI module regulates the electrical current that fires the air-fuel mixture in each of the engine’s cylinders. To reduce costs, Ford installed the TFI on the distributor, one of the hottest locations under the hood.
Do all ignition coils need a ballast resistor?
All cars produced with breaker-points type ignition generally had a resistor of some sort in their ignition system. And while ignition coil life may be compromised without a resistor, the additional secondary voltage (at the spark plug) is increased which generally improves power.