Precision Turbo and Engine BigStuff3 GEN3 Powertrain Controller Ignition Setup Tutorial - Manual (Page 4)

Locking Out the Centrifugal Advance
1. Remove the advance components including the springs,
weights, and the advance stop bushing from the advance
assembly.
2. Remove the roll-pin from the drive gear and remove the gear
from the shaft.
3. Slide the shaft two inches out of the housing.
4. Rotate the shaft 180° and insert the advance stop bushing pin
into the small hole on the advance plate (see illustration below).
5. Install the locknut and washer to the advance stop bushing
pin. This locks the advance in place. Do not over tighten.
6. Install the drive gear and roll-pin.
Installing the IPU Distributor
Rotate the engine so that the number 1 cylinder is Top Dead Center (TDC) (compression stroke).
Then, rotate the engine back or Before TDC (BTDC) the number of crankshaft degrees equal to the
maximum timing advance the engine will run at, plus 5
o
. Keeping with the example from above,
assume the maximum advance you plan to run is 45
o
(high speed/light load), add 5
o
to this number. So
rotate the engine to 50
o
BTDC #1 compression. Drop the distributor into the engine, then “bump” the
starter until it engages the oil pump drive while applying a light downward pressure. Once the oil
pump drive is engaged, rotate the engine back to 50
o
BTDC #1 compression. Turn the base of the
distributor so that the center of the reluctor aligns with the distributor pole piece. MSD distributors, use
a
BLUE magnetic assembly (pole piece) with the 2 wires running out of it. Once aligned, tighten
down the distributor, reinstall the cap and wires.
Electrical Connections
The MSD distributor 2 wire connector must be changed to the 2-way black male Metripack connector
(included with IPU kits). Crimp the seals and female terminals on with the correct crimping tool. Use
Packard crimper, PN 12014254 or MSD’s Pro-Crimp Tool, PN 35051, with Weathertight Dies, PN
3509.
Install the MSD distributor violet /black wire into cavity “A” of the black Metripack connector and
plug the other wire from the MSD distributor into cavity “B” of the black Metripack connector. The
red BigStuff3 wire needs to be connected to the violet /black striped MSD distributor wire. Next, plug
the connector from the distributor into the 2 wire (black) connector labeled “Crank” on the BigStuff3
harness.
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