The CDI coil wiring harness came out looking sharp. It has dedicated power and ground wires that connect directly to the factory fuse-box terminal in the engine bay. True to Guldstrand Pro’s attention to detail, Cody even whipped up a flexible TPU boot for the MSD PRO 600 CDI connector. The CDI box is designed to let the wires poke through the stock weatherproof connector, but Cody went two steps further—this boot adds extra protection while keeping the whole setup looking clean and purposeful.
For the CDI ignition signal wires, we started making a loom with an 8-pin DTM connector that will plug into the main engine harness that we are building next and get the ignition signals from our new standalone ECU.
Every booted connector has service loops to strain relieve the wires as well as enable the wires to have extra length to be serviced and modified in the future. This is a small detail and step that is often overlooked. After service looping the wires, they are concentrically twisted in a specific wire count which creates an extremely flexible, round, and durable core of wires.
The CDI signal wiring harness also features another Guldstrand-designed TPU boot for this different-sized connector. An 8-pin DTM Deutsch connector will get the ECU firing signal from the main engine harness while a 4-pin DTM connector will plug into the MSD Power Grid module which is needed to program and adjust the spark output of the PRO 600 CDI box.
The MSD Power Grid System Controller is designed for the MSD ecosystem geared towards drag racers. This module incorporates CAN-Bus and communicates with the CDI ignition to do many jobs that a modern standalone ECU already does. Because we are not limited by the rules of a drag racing niche of tuning and are using a modern ECU, we really only need the Power Grid to temporarily plug into the PRO 600 CDI and change the power output settings.
2 comments
Is the msd pro 600 cdi capable of being used for a 4 rotor ?
That’s a great question. Unfortunately no one knows until someone tries it. There was very little information on the ability for the PRO 600 to work on a rotary since the guy who designed it no longer works for the company and there’s not enough information on the circuitry (surprisingly). In theory it should be able to…