AEM 30-2852 High Output Inductive Coil User Manual

HIGH OUTPUT COIL

30-2852

The model 30-2852 HO Coil is a specially designed, high energy coil for racing applications so you must take special

attention with the connections. Apply a liberal amount of dielectric grease to the terminals and the tip of the spark
plugs. Failure to do this may cause arcs to the cylinder head and cause a misfire.

The 30-2852 Kit Contains:

1 High Output Coil
1 Mating Connector & 4 Contacts

SPECIFICATIONS:

Primary Resistance: 0.5 Ω +/- 10%
Primary Inductance: 4.8 mH +/- 15%
Secondary Resistance: 8.5 kΩ +/- 20%
Secondary Inductance: 22.5 H +/- 20%
Output (50pF load): 41 kV +/- 10%
Output Energy: 118 mJ +/- 7%
Peak Secondary Current: 100 mA +/- 7%
Arc Duration: 3.2 mS +/- 10%
Turns Ratio 71:1
Maximum Battery Voltage: 17 Volts
Base Dwell: 3.0 mS
Max Continuous Dwell: 9 mS but don’t exceed 40% duty cycle
Max Intermittent Dwell: 80% duty cycle, 5 seconds maximum
Mating Connector: Packard/Delphi 12162182 “Pull to Seat”
Mating Contacts: Packard/Delphi 12124075 “Pull to Seat”
High Tension Wire Terminal: HEI “spark plug top” Style

PINOUT:

A: Battery Positive (Relay or switched ignition or high voltage input for CDI)
B: Coil Trigger (Charging when low)
C: Ground to Cylinder Head

IMPORTANT!

The contacts are “Pull to Seat” meaning you must feed the wire through the connector housing BEFORE you crimp on
the contacts. The wire is then pulled back into the housing and the contact locks in place. The contact cannot be
inserted or removed from the rear (wire side entry) of the housing

DWELL:

When using in dwell controlled systems (i.e. non-CDI) the following guidelines should be used:

• Target a base dwell time of 3mS and only increase it when needed due to high cylinder pressures.

• The maximum individual coil dwell “ON” time must not exceed 9mS at any time, regardless of engine RPM.

Exceeding this time will cause the coil to overheat and fail.

• For continuous duty the maximum “ON” time must remain below 40% duty (on 40% of the time, off 60% of the
time). Exceeding this will cause the coil to overheat and fail.

• For short bursts, the coil dwell can go as high as 80% “ON” duty but these forays need to be short (under 5
seconds or so) and cannot be frequent.

For technical assistance, contact AEM Tech support at [e-mail]

ADVANCED ENGINE MANAGEMENT INC. HTTP://WWW.AEMELECTRONICS.COM

This product is legal in California for racing vehicles only and should never be used on public highways.

Advanced Engine Management, 2205 126

Instruction Part Number: 10-2852, © 2011 Advanced Engine Management, Inc.

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Street Unit A Hawthorne, CA. 90250, [phone]