Mallory Ignition Mallory CT PRO IGNITION CONTROL 6864M - Manual

1 MALLORY IGNITION www.mallory-ignition.com
The CT PRO™ Ignition Control features a single stage rev
limiting developed especially for the circle track market. It
will control the engine RPM precisely, but its operation is
smooth enough to eliminate unloading of the chassis at a
critical spot on the track.
Battery
The CT PRO™ Series Ignition Control operates on any
negative ground, 12 volt electrical system with a distributor.
It will also work with 16 volt batteries and can withstand
a momentary spike of 24 volts in case of jump starts. This
system delivers full voltage with a supply of 10-18 volts,
and operates with a supply voltage as low as 8 volts. If
your application does not use an alternator, allow at least
15 amp/hour for every half hour of operation. If you crank
the engine with the same battery or other accessories,
such as an electric fuel or water pump, increase the amp/
hour rating.
Coils
The only coil suitable for use with your CT PRO™ Ignition
Control is Mallory’s CT PRO™ Coil P/N 30460. During our
extensive testing, no other coil from Mallory or any
competitor would withstand the stress.
Spark Plugs and Wires
High quality, spiral wound wire and proper routing are
essential to the operation of the CT PRO™ Ignition Control.
This type of wire provides a good path for the spark to follow
while minimizing electromagnetic interference (EMI).
NOTE: Do not use solid core spark plug wires with the
CT PRO™ Ignition Control.
Routing
Wires should be routed away from sharp edges, moving
objects, and heat sources. Wires that are next to each other
in the engine’s firing order should be separated. For exam-
ple, in a Chevy V8 with a firing order of 1-8-4-3-6-5-7-2, the
#5 and #7 cylinders are positioned next to each other on
the engine as well as in the firing order. Voltage from the #5
wire could jump to the #7 wire. This could cause detonation
and engine damage.
For added protection against cross-fire, Mallory offers
PRO SHIELD insulated sleeving. Pro Shield is a glass
woven, silicone coated protective sleeve that slides over
your plug wires. It also helps reduce damage from heat
and sharp objects.
Welding
To avoid any damage to the CT PRO™ Ignition Control
when welding on the vehicle, disconnect the positive (red)
and negative (black) power cables of the CT PRO® Ignition
Control. It is also a good idea to disconnect the tachometer
ground wire as well.
Distributor Cap and Rotor
We recommend installing a new distributor cap and rotor
when installing the CT PRO™ Ignition Control. Be sure the
cap is clean inside and out, especially the terminals and
rotor tip. On vehicles with smaller caps, it is possible for
the air inside the cap to become electrically charged caus-
ing crossfire which can result in misfire. You can prevent
this by drilling a couple of vent holes in the cap. Drill the
holes between terminals at rotor height, facing away from
the intake. If needed, place a small piece of screen over the
holes to act as a filter.
CT PRO™ Diagnostic LED
On the end panel of your CT PRO™ Ignition there is a small
hole. Behind this hole is a red LED indicator. This serves
two purposes: when you first turn on the ignition switch,
the LED will flash rapidly 3 times. This indicates that the
ignition system has power, and that the microprocessor is
running properly. In addition, the LED will flash when receiv-
ing a proper trigger signal from the vehicle. If, after a normal
power-up, the LED doesn’t flash when cranking the engine,
you should check your triggering circuit for problems. If the
LED flashes when the engine is cranked, but there is still no
spark, the problem lies somewhere else.
CT PRO™ Cylinder Selection
Your CT PRO™ Ignition comes from the factory set up for 8
cylinder operation. If you want to use this ignition with a 4 or
6 cylinder engine, rotate the “CYL” cylinder select switch to
either the 4 or 6 position.
Mounting
The CT PRO™ Ignition Control can be mounted in any
position. If you mount it in the engine compartment, keep
it away from moving objects and heat sources. When you
find a suitable location to mount the unit, make sure all
wires of the ignition reach their connections. Hold the
ignition in place and mark the location of the mounting
holes. Use the appropriate size drill to accommodate your
mounting hardware
Wiring
The CT PRO™ Ignition Control is designed to be used with
the industry standard circle track style 6-Pin Harness. If
you are installing the ignition in an application that is not
so equipped, we recommend you purchase Mallory Part
Number 29605 6-Pin Harness, which is 6 feet long and
terminated with the matching connector on one end. A 4
foot power harness is available as Mallory part number 29606.
Grounds
A poor ground connection can cause many frustrating
problems. When a wire is specified to go to ground,
connect it to the chassis. Always connect a ground strap
between the engine and chassis. Connect any ground wires
to a clean, paint-free metal surface.
FORM 1666 (Rev A) 01/12 INSTALLATION INSTRUCTIONS
CT PRO™ IGNITION CONTROL
PN 6864M