Type_4, With a crank trigger setup – Precision Turbo and Engine BigStuff3 GEN3 Powertrain Controller Ignition Setup Tutorial User Manual
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• Install the distributor 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 the
timing mark on the dampener that will represent the maximum timing the engine will see at full
power. Turn the base of the distributor so that the distributor cap terminal for cylinder number
1 is aligned with the rotor in this position. Tighten the distributor down.
• Connect the BigStuff3 points wire (white) to the MSD ignition box points input.
• In the BigComm Software (Operating Configuration), set the crank reference setting to 50. See
• Start the engine, with the engine still running verify that the BigStuff3 “Dash” timing advance
value equals the timing value seen (with a timing light) at the crank. Change the crank
reference value in the Crank Trigger window (in the Operating Configuration table), up or
down, until the “Dash” value and the crank value are the same. See
on page 29.
• Dynamically check the rotor phase. See
Dynamically_Checking_Rotor_Phasing
• Lastly, you will want to verify cam synchronization. See
11.
Type 4 - IPU Cam Sync Distributor (MSD P/N 2340)
with a Crank Trigger Setup
Quick Setup Guide
• Find TDC, cylinder number one (1), compression stroke. See
• Roll the engine back to 50
o
BTDC.
• Install the crank trigger. Line up the sensor with the magnet. See
• Roll the engine back to 70
o
BTDC cylinder number 1 compression
• Install the distributor then “bump” the starter until it engages the oil pump drive while applying
a light downward pressure. Make sure it is fully seated.
• Line up the magnet with the pole piece inside the distributor with the pickup.
• Tighten down the distributor
• Roll the engine back to the position BTDC (cylinder 1) equal to the max power timing.
• Phase the rotor and/or reluctor.
• Connect the red BigStuff3 wire to green distributor wire. Connect other Distributor wire to
BigStuff3 black wire.
• Connect the BigStuff3 points wire (white) to the MSD ignition box points input.
• In the BigComm Software (Operating Configuration), set the crank reference setting to 50.
• Start the engine. See
• Use the “CamCrkAdv” window in the Dash to adjust the cam sync to 15
o
- 20
o
. This is the
number of crank shaft degrees that the cam sync pulse occurs before the crank pulse. Loosen
and adjust the cam sync (modified distributor) until the cam sync occurs at least 15
o
- 20
o
before the crank.
Re-tighten the cam sync (modified distributor).
on page 27.
• Lastly, with the engine still running verify that the BigStuff3 “Dash” timing advance value
equals the timing value seen (with a timing light) at the crank. Change the crank reference
value in the Crank Trigger window (in the Operating Configuration table), up or down, until
the “Dash” value and the crank value are the same. See