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Jacobs Electronics Ignition System On A 1997 Dodge Truck - Nine Great Parts You Can Install Now

Easy Ignition

Photography by Ken Brubaker
1. Jacob's Ultra Team Mileage Master Energy Pak has a long name, but it's simple to install. The kit comes with a secondary trigger and Teflon-coated wires.
1. Jacob's Ultra Team Mileage Master Energy Pak has a long name, but it's simple to instal

We installed a new Jacobs Mileage Master ignition system, provided by Performance Combos, onto our '97 Dodge pickup. The "Coil Over" Mileage Master is the longest produced and most successful ignition system made by Jacobs. The unit features a CMD Ultra Coil mounted to the case for easier installation.

According to the company, this kit should eliminate all misfires and erratic idle conditions-at least those caused by ignition problems. By improving low-end firing, the kit should, in theory at least, boost your low-end torque.

Using Jacobs' "EZ" secondary trigger, the high-voltage output from the vehicle's OEM coil is used to trigger the Mileage Master. This is a nice feature because if for some reason we ever wanted to go back to the OEM system, doing so would be a quick and painless switch. Other advantages of this sort of easy upgrade are better performance through the entire rpm range and improved miles per gallon. Jacobs claims a 1-1 1/2 mpg improvement and approximately an extra 15 hp.

Installation at Stanley's Exhaust Tech was fairly simple. The Dodge's cab-forward design makes accessing the distributor a chore, but like your mom told you, patience is a virtue. Total install time was about 2 1/2 hours.

  • 2. The first thing is to figure out where you want to mount the ignition unit. Try getting it as close to the battery as possible. Hold the unit to your chosen mounting point, mark the holes and drill pilot holes. We used 1/2-inch pop rivets to attach the ignition component to the inside of the fender wall.
    2. The first thing is to figure out where you want to mount the ignition unit. Try getting
  • 3. We installed the trigger just above the primary ignition component. Using the provided wire, connect the trigger to the OE coil. Cut to length, if necessary. Then connect the trigger to the distributor.
    3. We installed the trigger just above the primary ignition component. Using the provided
  • 4. Remove your original ignition wires one at a time. Measure them against Jacob's core and cut to length...
    4. Remove your original ignition wires one at a time. Measure them against Jacob's core an
  • ...Reapply the boot and fasten the straight end to the spark plug. Follow your distributor's firing order carefully, going clockwise
    ...Reapply the boot and fasten the straight end to the spark plug. Follow your distributor
  • 5. We traced the unit's power wires along the headlight wire loom beneath the radiator. Make sure not to wrap the wires around corners and use an already existing wire loom, if possible. Finally, attach the wires to the battery.
    5. We traced the unit's power wires along the headlight wire loom beneath the radiator. Ma
SOURCES
Jacobs Electronics
www.jacobselectronics.com
Performance Combos
www.performancecombos.com
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