Off Road Vehicles banner
1 - 1 of 1 Posts

Premium Member
9,227 Posts
Discussion Starter · #1 ·
  • Screwdriver
  • Drill and Bits
  • Wire Stripper
  • Soldering Iron
  • Wire Crimpers
  • Trim Rivets
  • Electrical Tape
  • Zip Ties
  • Wire Loom
  • 1 Hour

By JasonB

My Check Engine light came on and gave a code indicating a problem with the coil. After testing the coil and realizing that it was way out of spec, I decided to replace it with a High Vibration Blaster coil from MSD. While I was at it, I decided to pick up a MSD 6A Ignition System. The 6A system will fire a spark plug multiple times rather than the factory single ignition. This will help provide a more complete combustion of the fuel for better fuel economy, better throttle response, more power over all RPMs and smoother idle. The Blaster coil outputs more energy and more voltage to the plugs so you get even better firing. Both components can be used individually as well.

Parts list:
  1. Part Name
  2. Part Number
  1. MSD 6A
  2. 6200
  3. Any 6 Series will work, this is the base model
  1. MSD High Vibration Blaster Coil
  2. 8222
  3. Any Blaster Coil will work, the Blaster 3 does not require use of adapter part 8805/84039
  1. MSD Coil Bracket
  2. 8213
  3. Any universal coil bracket will work.
  1. MSD High Vibration Mounts
  2. 8823
  3. Not required, but recommended unless using MSD 6 Off-road. Helps with mounting on uneven surfaces. Part # valid for 6 Series Controllers
  1. MSD Power Tower Adapter
  2. 8805 or 84039
  3. If HEI style terminal required, must for late model Rams with Blaster Coils, except Blaster 3. 8805 is pack of 9 adapters but only one needed. 84039 is single adapter with MSD 8.5mm SuperConductor replacement coil wire.

For late model V8 Dodge Rams, you do not need any additional parts. The instructions say that you may need a Tach Adapter, Pickup and some other items, but they are not required. Non-94+ Ram applications need to check with MSD for additional parts.

Installing 6A with factory coil:

MSD 6A with wiring harness and template I had to make.
Auto part Technology Automotive exterior Electronic device

I decided to mount the 6A on the drivers side fenderwell under the hood. Since I also needed to mount the new coil somewhere because the location of the factory coil does not facilitate the Blaster coil, I put it there also. First I had to remove the fenderwell liner.
Tire Automotive tire Vehicle Auto part Car

Then, using a cardboard template, determined where the High Vibration Mounts needed to be located. The mounts are nearly 3/4" tall so they also helped me avoid a small hump right where the 6A was to be located. I drilled the first hole from the top to set the position.

Then I matched the template on the under side to the first hole I just made. Drilled the remaining holes from the bottom because the power distribution center would not let me keep the drill vertical so it kept slipping on the sheet metal.
Skin Hand Fur Wood Ear

Once the holes were drilled and deburred, I attached the mounts using Loc-Tite.

Mounts installed awaiting 6A

Mount the 6A to the High Vibration Mounts and spread out your wires. You do not need any of the loose wiring provided with the 6A.

For late model V8 Dodge trucks, you simply need to splice the 6A in series with the factory coil trigger wires (Green/Grey and Grey). The Red/White 6A wires connect to the "computer" end of the coil trigger wires, while the Orange/Black wires connect to the coil itself. Then connect the 6A power and ground leads as required.

I decided to cut the coil trigger wires near the coil connector. I then soldered extensions to the "computer" end and wrapped it all in convolute and routed it back to the 6A along the cowl. I then soldered the coil connector to some wire, wrapped those and routed them with the "computer" end back to the 6A. The end of both sets of wires had male spades crimped on. This allowed the 6A to connect to the new extensions. Once connected, wrap everything in electrical tape. Also, if the 6A were to ever go out, I made a set of jumpers to connect the extensions to bypass the 6A.

Installing Blaster coil:

If you are installing a new Blaster Coil at the same time as the 6A, mount the coil bracket when you are mounting the 6A. I decided to mount the Blaster Coil on the same fenderwell near the 6A. The High Vibration Blaster Coil is fully potted so it can be mounted in any position unlike standard oil filled coils. Be sure the coil wire from the distributor can reach the coil as well as the Orange/Black wires from the 6A.

If your application requires HEI style terminals, install the Power Tower adapter if needed. If the 6A is connected to a factory coil, unplug the Orange/Black wires and reroute them to the Blaster Coil. You can leave the factory coil as a back up. Reroute the coil wire to the coil and you are done.

If you are not using a 6A and just installing a new Blaster Coil, you need to splice the coil trigger wires to route back to the new coil. If you want to keep the factory coil as a backup, then solder the "computer" end trigger wires, the factory coil connector and the wires to the new coil together. Unplug the factory coil, and connect the new coil to the new extensions and route the coil wire to the new coil. If the new coil fails, unplug the coil wire and trigger wires from the and coil, reroute the coil wire back to the factory coil and connect the factory connector back to the factory coil.

Installed MSD 6A and Blaster Coil. The white wires are from another device.
Electrical wiring Wire Electrical supply
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.