Precision-turbo-and-engine BigStuff3 GEN3 Powertrain Controller Ignition Setu User Manual

GEN3 Powertrain Controller Ignition Setup Tutorial For Use with the GEN3 Pro SEFI Powertrain Systems February 2009 – Rev 1.1

Repositioning the Magnet You may have to reposition the magnet in the magnet carrier, if the rotor phase is unacceptable for the desired timing at p

Type 5 - All-in-One, Crank and Cam Sync Distributor Currently MSD makes two all-in-one cam and crank (signal) distributors (see below). MSD a

11The MSD All-In-One Distributor 2 wire connector (wires from the blue pole piece) must be changed to the 2 way black male Metripack connector

12Type 6 - Using GM’s Oil Pump/Cam Sync Drive (P/N 1104068) Used in Conjunction with BigStuff3’s 24 tooth Wheel. For standalone Coil-on-Plug (

The table below shows the position the BigStuff3 Cam wires need to occupy in the new connector housing (positions A, B & C). The new connector h

Next, install the terminal pins into the new connector housing per the table above. Lastly, snap the secondary lock back onto the back of the new co

15Find GM Cam Sync Falling Edge To find the Cam Falling Edge a voltmeter and a jumper wire are required.. A crankshaft degree wheel is also

16Type 7 – MSD Mag44 (Magneto) Quick Setup Guide • Find TDC, cylinder number one (1), compression stroke. See Find_TDC on page 20. • Roll th

17as the crank signal. To confirm this, type the letters B-A-L simultaneously see B_A_L on page 30. Make sure the PC is communicating with th

• Rotate the crankshaft back to 30o BTDC position and the voltmeter attached to the E3 and J2 terminals, the voltmeter should read 12 Volts (the S

1The installation and set-up of the following ignition configurations will be explained in this tutorial. For additional information on ignition sy

• The UEGOR reading in the “Dash” must read 28. See Dash_Window on page 29. o Note: There is a cam sync issue if the UEGOR reading is any number

20other than this number, then there is a synchronization problem between the cam and crank. The cam sensor may need to be moved to correct th

21Using the Degreed Dampener or a Dampener with Timing Tape on it, instead of a degree wheel Make sure that the pointer is solidly mounted so

In order to avoid this problem BigStuff3 recommends using a system that has four magnets (for a V8) embedded in the trigger wheel. As the magnets pa

Rotor Phasing Rotor phasing is important for regular OE ignition systems, but it is vital for high energy ignition systems where the spark has to jum

24For example, with the Crank Reference set to 50o BTDC, the rotor needs to be retarded by 30o (crankshaft degrees) to achieve good rotor phase

Start by removing the cam gear at the bottom of the distributor shaft by removing the roll pin with a 1/8” punch. Pull the distributor shaft out of

26 For non-COP engines: If using a 4-magnet (pole) crank wheel the value inputted into this cell must be 4. Static Test Timing Window “Cr

Cam/Crank Advance (CamCrkAdv). Will be available for COP applications in March 09. Add to the “Dash”, the variable called CamCrkAdv (see below). Th

The cam signal occurs 11o before the crank signal The crank signal occurs 11o after the cam signal Setting the Crank Reference for Coil-0n-Plug Engi

2Type 1 - Stand-alone Distributor (no cam sync signal or crank trigger used) Stand Alone Distributor Overview A stand-alone IPU distributor can be

Use a timing light to confirm that the value inputted into the “Crank Reference” (in the COP window, not the Crank Trigger window) exactly matches th

Static Test Timing Window Dynamically Checking Rotor Phase To check rotor phasing dynamically, the distributor cap will need to be modified so that

With COP engines using HED cam and crank sensors, like the GM LSx engines, the synchronization status is provided immediately during cranking, so the

How to Connect the BS3 Two (2) Wire Magnetic Sensor to the BS3 LS1 Main Wire Harness The LS1 main wire harness was designed to interface with the st

33GEN3 ECU - Ignition Settings for GM Cam Sync Drive When using the GM Cam Sync drive and a BigStuff3 24 tooth wheel, the Factory or Dealer Ig

Locking Out the Centrifugal Advance 1. Remove the advance components including the springs, weights, and the advance stop bushing from the advance as

4Type 2 - Modified distributor (to serve as the cam sync) to be used with a crank trigger setup The cam sync drive provides a signal (every 36

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 S

6Removing Reluctors Use a permanent black marker and clearly identify (mark) the reluctor that is lined up or in-phase with the sensor pole pi

7• Install the distributor then “bump” the starter until it engages the oil pump drive while applying a light downward pressure. Once the oil

MSD Cam Sync Drive Shown below is MSD’s cam sync distributor, part number 2340. Inductive pick-up (sensor) Installing the Cam Sync Di