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IGN1A Smart Coil
IGN1A Smart Coil
IGN1A Smart Coil
IGN1A Smart Coil
IGN1A Smart Coil

IGN1A Smart Coil

5 out of 5 based on 2 customer ratings
(2 customer reviews)

$71.00

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Frequently purchased together

Product Quantity

Crimp Connector for IGN-1A

Pigtail Connector for IGN1A and GM MAF Sensors

Description

The IGN1A Smart Coil by AMP EFI requires no CDI Ignition Module to produce 103 mJ per spark, with a longer spark duration (2.9 ms) than what you’d see with a capacitive discharge. They are the same monster coils used in Street Outlaws No Prep Kings contender, ‘The Hulk!’

Each IGN1A Smart Coil features a 19 amp IGBT ignitor built in and can be driven with a 5 volt logic level output – an MS3X or MS3Pro will run them directly (set spark output to going high), and we recommend a 270 to 330 ohm pullup if you’re building a MegaSquirt 1 or MegaSquirt 2 to drive them and can fully charge with as low as 2.5 ms of dwell. Normally, you’d use them for a distributorless ignition as a coil per plug application, however they can be fired sequentially or every crank revolution (wasted spark coil per plug). If used as a single coil with a distributor, you may need to run a bit less dwell to prevent heat buildup from being an issue.  Maximum recommended duty cycle is 40%. Requires HEI-type plug wire ends/ boots.

Plugs are sold separately.  We offer either a 4 foot long flying lead pigtail or a pin and connector kit.

Here is the connector pinout:

A – Ignition signal from ECU
B – Logic ground, connect to ECU ground
C – Spark wire ground, connect to cylinder head
D – Power ground, connect to battery negative
E – 12 volt power

The coil dwell starts when a 5 volt signal is applied to pin A and the coil fires when the voltage drops to zero. The signal is similar to an LSx coil, although it does need a bit more current to trigger.

Smart Coil specs:

Minimum Output Voltage  (no load, at recommended dwell): 40,000 volts
Maximum Output Voltage: up to 81,000 volts (+/- 10%)
Output energy: 103 mJ
Spark duration: 2.9 ms
Primary resistance: 0.5 ohms (not directly measurable)
Primary inductance: 4.8 mH (not directly measurable)
Secondary resistance: 8,500 ohms
Secondary inductance: 22.5 H
Turns ratio: 71.1
Maximum current: 19 amps
Maximum battery voltage: 17 volts
Nominal dwell: 3.0 ms

Excessive dwell or duty cycle may cause meltdown.  As with any race coil, the manufacturer does not provide a warranty.

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What is the pinout for this coil?

Here is the connector pinout:

A – Ignition signal from ECU
B – Logic ground, connect to ECU sensor ground
C – Spark wire ground, connect to cylinder head
D – Power ground, connect to battery negative
E – 12 volt power

Do you have a wiring diagram?

 

 

Questions & Answers

    will this work on a 22re motor with a haltech system
  1. 0 votes
    Q will this work on a 22re motor with a haltech system
    Asked by vince cruz
  2. What is the Maximum dwell time for these?
  3. 1 vote
    Q What is the Maximum dwell time for these?
    Asked by Shawn
    There are no answers for this question yet.
  4. Can you point me to a wiring diagram for installing these on a 1.8 Miata?
  5. 0 votes
    Q Can you point me to a wiring diagram for installing these on a 1.8 Miata?
    Asked by MiataRoadster
  6. On a 1000cc n/a alcohol fueled engine is the 1 AMP/103 mJ coil good for reliable ignition to 12500 rpm? What is the mJ output for the higher amp coils in the series?
  7. 0 votes
    Q On a 1000cc n/a alcohol fueled engine is the 1 AMP/103 mJ coil good for reliable ignition to 1250...... Read more
    Asked by Larry
  8. Are these sold individually?
  9. 0 votes
    Q Are these sold individually?
    Asked by Brian
  10. Will this work with the MS3 LS drop in engine harness? The connector showing that is required for these does not look the same as a GM coil connector.
  11. 0 votes
    Q Will this work with the MS3 LS drop in engine harness? The connector showing that is required for...... Read more
    Asked by Andy Sears
  12. I have a distributor on a 4 cylinder naturally aspirated engine and a microsquirt, would this be a good coil to use?
  13. 1 vote
    Q I have a distributor on a 4 cylinder naturally aspirated engine and a microsquirt, would this be ...... Read more
    Asked by Daniel
  14. In the pin out description, pin D is to be wire to the battery negative, is this required? I am asking because my battery is mounted in the truck with the negative cable grounded to the frame. Would a frame ground suffice or should the coil grounds be run to the rear of the car?
  15. 0 votes
    Q In the pin out description, pin D is to be wire to the battery negative, is this required? I am a...... Read more
    Asked by James Beal
  16. I have a distributor on a 6-cylinder turbo engine. I would like the redline to be 6500 RPM. A spark must occur every 3.1 ms. Can this coil work for my application?
  17. 0 votes
    Q I have a distributor on a 6-cylinder turbo engine. I would like the redline to be 6500 RPM. A spa...... Read more
    Asked by Patrick Brunelle
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