CPC Ignition System Conversion

MSD MSC

There are different ways to do a coil per cylinder conversion, but I will just explain my choice. First I started out with selecting the right coil. I decided to go with the LS1 type set up. OEM LS1 coils have a built in ignitor to fire the coil itself, so that eliminates the need for an external amplifier box to fire the coil. But how do you get that great Multi-Spark Discharge from an MSD box if this set up elminates ignition boxes? Luckly, MSD built replacement Multi-Spark Coils for LS1 style set ups in which the coil itself has the built in mult-spark discharge technology. Thats why these Multi-Spark Coils have 4 pins, a positive and negative for the coil itself, and a power and ground to fire the built in "MSD box" in the coil. Because these MSCs were designed for LS1 replacement OEM coils, an OEM coil bracket from an LS1 makes mounting the coils a direct bolt on. I used a coil bracket from an 04 LS1 Corvette. Figuring out how to mount the coils in the engine bay has now become easier. The rule of thumb for any ignition coil is to always mount it away from direct heat. You want to keep the coil as cool as possible. With my aftermarket intake manifold, I have 4 inches of nothing but straight runners. This makes it an ideal place to mount the coils since they will be on the intake side, away from direct heat of the exhaust side with the turbocharger, and makes it easier to route the ignition spark plug wires over the valve cover to the spark plugs. I do got to say one thing about the MSD MSC (Part Number 8245), these suckers are extremely fat and without an external ignition box, wiring has also become easier and makes the engine bay look cleaner in my opinion. MSD