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Pertonix/coil replacement

Discussion in 'Early CJ5 and CJ6 Tech' started by Brad Rabideau, Nov 14, 2005.

  1. Brad Rabideau

    Brad Rabideau more Jeeps than sense...

    I've decided to try the petronix ignition and I was wondering if is it necessary to replace the stock coil with a upgraded coil like the flame thrower from pertronix?

    I'd rather not, but, am I being too cheap by not doing so and I'm I looking at creating problems by not upgrading?

    Knock on wood, I have no problems now with my '6', she starts very easily, runs good, and seems to have plenty of power. Curiosity has gotten the best of me though, and I want to see if there really can be an increase of power and the reported better mileage seems interesting too.

    I know this has been talked about a lot and I've done the searches, but couldn't find the answers I'm looking for. Thanks for any input.
     
  2. dohc281

    dohc281 It is what it is.

    I installed a Pertronix ignition in my '61 and didn't replace the stock coil and have had no issues. It was money well spent.
     
  3. BlueFlu

    BlueFlu past owner of some ecj5's

    You can use the stock coil fine.
    If you do upgrade to the Pertronix coil get the Epoxy filled one.
    Its made for off road. ;)
     
  4. Jim Wiseman

    Jim Wiseman New Member

    I added only the Pertronix sensor. I didn't notice a change in gas mileage but starting sure is a dream. I just touch the starter, for maybe a 1/4 rev, and it fires up every time.
     
  5. lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    I've been running a Pertronix for 10 yrs. No problems (except for the time I mistakenly wired a hot wire direct to ground and fried most of my ignition :shock: )
    The Pertronix smoothed my idle and eliminated hesitation upon acceleration :)
    I run a Jacobs coil, have been running the same coil for over 10 yrs...

    From Jacobs website:
    ****************
    ENERGY COIL
    The Energy Coil has the highest output of any non-variable coil available. The
    Energy Coil is constructed of chrome plated steel and is oil filled for better
    internal heat dissipation. The coil is completely sealed and can operate in any
    position. It is extremely rugged, and can sustain up to 23 G shocks. The
    Energy Coil has escape voltages up to 50,000 volts.
    Energy Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . #380672T
    Universal Bracket . . . . . . . . . . . . . . . . . . . . . . . . #380650
    SPECIFICATIONS
    Maximum Voltage: 50,000 Volts
    Primary Resistance: .6 Ohms
    Secondary Resistance: 8.5K Ohms
    Inductance: 6.8 mH
    Turns Ratio: 100:1
    Peak Current: 190 mA
    Spark Duration: 390 uS
    Weight & Size: .4lbs. 2"L x 2"W x 5"H

    [​IMG]

    $32.99 at Summit Racing.
     
  6. Brad Rabideau

    Brad Rabideau more Jeeps than sense...

    Thanks for the info. I think I'll order the new coil. Might as well as long as I got permission to do so :) I'll be interested to see any differences that do come about.
     
  7. sparky

    sparky Sandgroper Staff Member Founder

    Dang, I found an article the other nite on high voltage coils and it described in detail how ignition systems worked and what a higher voltage coil did for you.

    Now I can't find it.

    5 minutes later...

    Here it is! This is a great article on ignition systems in general.
    http://www.chevyhiperformance.com/techarticles/45618/index.html
     
  8. mpc

    mpc Member

    I changed to Pertronix in my dune buggy and kept the stock coil with no problems. If you're going to buy a new one, keep the old coil in your trail kit as a spare. They do out form time to time. I've had my coil go bad two different times while offroading. The first time I didn't have a spare & had to walk out. From then on, always a spare in my kit.
     
  9. Hawk62cj5

    Hawk62cj5 Captain of OldSchool

    I havnt picked up my pertronix yet for my winter upgrade. Who did most of yall get yalls though.
     
  10. Gump

    Gump Old Timer

    I had a buying question also. Do you order for a certain distributer part number or just for, say, a 4 cylinder L head?
     
  11. DKillam

    DKillam Sponsor

  12. dohc281

    dohc281 It is what it is.

    I got mine from Summit Racing
     
  13. Spicolli

    Spicolli jeep geek

    I ordered my Pertronix from West Coast Core 661-726-9915
    I should have it this week!
    They sell on ebay but i got a better price when i justed called!:)
    I will be getting ignition, coil, and wire set price to my door is $165.09..
    Without the wire set i think it would have been about $120.00
     
  14. raceanything

    raceanything All Jeeps all the time

    A friend put the pertronix in my 225 odd fire for me and he is very maticules, never makes mistakes. the motor had been sitting for 10 years and we built a whole new buggy around it. When we fired it it had very poor (like 3 cyl poor) power. I couldn't fin d the instructions but took the magnetic pick up ring and turned it 180* and it runs much better. I later got the directions out of another non V6 pertronics kit and there was no mention of how the ring goes in. Is this exclusive to the 225 Odd fire?

    I still need more Power for what im doing.
     
  15. Patrick

    Patrick Super Moderator Staff Member

    Seems there was quite a few Pertronix units for the 225 that had the magnet ring marked 180* off....