Ignition Upgrade Opinions
Brian, before anything else good or bad about the Jacobs I
want to point something out to you. The Jacobs (I have one)
picks up it's signal form the OEM ignition. So if it's bad,
installing the Jacobs isn't going to change anything until
you fix the basic problem. The same with the MSD. Although
it has it's own coil, if the module is bad, you still in the
same predicament. Fix it right first before deciding on the
Now onto the aftermarket stuff. I have a Jacobs and
wouldn't recommend it for several reasons. I have an XJ,
and it didn't feel like 18 hp. No parts store carries the
stuff if something goes wrong. You have to wait for it the
be mailed back to them...fixed.....and mailed back to you.
About 3 weeks time. My Ultra Team spends more time in the
mail rather than in the truck. Sometimes they pay shipping.
They are good about the warrenty but it is aggravating. Did
notice a 3-4 mpg gain for the gas. Expensive too. Can buy
gas with the extra money.
A friend has the MSD unit. Never has any problems except
for 1 bad coil. He isn't bothering to replace it because he
is going to sell his truck this month. Out of warrenty of
course. :) Your plug life will be a little shorter
because it is multi spark. So you get 3 or 4 mini sparks
for each coil fire. The plug can wear out this way.
Solution, just buy Champion Truck plugs (the black and gold
ones) they have a 3 year warrenty. Burn them out in 2 years
and get em replaced. To do it over I would buy an MSD. You
can get parts at the store if something really goes wrong
before you get get summit to look at it.
I suggest better wires (splitfire wires, accel, etc) to
handle the extra juice passing through. Ditto with the cap
and rotor. Look for brass terminals. Accel makes one.
Napa does too.
- Joe Attardo