• Connects to your standard MSD Ignition*
• Absolute control over your ignition timing
• Plot a timing curve down to 0.1° every 100 rpm
• Control each cylinder’s ignition timing
• Different rpm shift points for each gear shift
• Set an amount of retard to ramp back in during the launch
• Three stages of retard for multi-stage nitrous
  systems
  
  
  
  
  PN 8979 and PN 8977
  Technical Brief

Multi-Function Ignition Controllers
MSD engineers incorporated the favorite controls of the race proven Programmable Digital-7 Ignition Control into an accessory for racers already using an MSD Ignition Control with a rev limiter (MSD 6AL, SCI-L, 7, or 10 series). It is the only ignition accessory you’ll ever need.
The Multi-Function Ignition Controllers are loaded with easy to program adjustments. The Controller lets you adjust the timing of every cylinder, map a complete timing curve, pull timing out during the launch, set rev limits, shift points, start retard and much, much more.
Don’t let all of these functions worry you. MSD developed two very easy ways to program the Controllers. For PC users, MSD offers the Pro-Data+ software or for the non-computer racers, there is a hand-held Programmer Monitor.
The Multi-Function Ignition Controllers can be triggered with a points/ECU trigger, magnetic pickup in a distributor or the non-magnetic pickup of a crank trigger. There is even a mag pickup compensation adjustment for absolute trigger accuracy! It must be used with an MSD Ignition Control and can be used on 4, 6 or 8-cylinder engines. Each is supplied with Pro-Data+ software disk, PC harness, vibration mounts, wiring and thorough instructions.
The PN 8977 also has a programmable boost retard curve. There is a boost pressure inlet on the side of the unit and you can program a timing curve in relation to the amount of boost pressure.

Multi-Function Ignition Controller
PN 8979*

Multi-Function Ignition Controller with Boost Retard
PN 8977*

The Pro-Data+ software can be used with any PC running Windows 95, 98 or NT.

Note: The MSD Multi-Function Ignition Controllers , PN 8977 and PN 8979, are not compatible with the rev limiter of the MSD 7AL-3 Ignition, PN 7230 and MSD 10-Plus, PN 7505. The timing programs of the Controllers can still be used with the MSD 7AL-3/MSD 10-Plus, though you would continue to use the rev limiting steps that are built-in the MSD 7AL-3 and MSD 10-Plus. (Using the rev limiting programs of the Controllers with the MSD 7AL-3/MSD 10-Plus will result in a very rough limit.)