plug wires

Discussion in 'PSI Superchargers Tech Questions' started by overkill69, Jul 9, 2015.

  1. overkill69

    overkill69 Member

    Joined:
    May 17, 2005
    Messages:
    826
    Likes Received:
    0
    Whats the latest for hemi plug wires?
    We ran MSD and they were indestructible other than ohm values going up.
    Bought a set of Taylor that use the MSD plastic end and within a few runs the terminals slipped in the boots and lost connection. Its really hard to feel the engagement.
    I talked to Firecore and they said the terminals can move as well if not treated carefully.
    I used to apply dielectric grease and then moved to brakekleen on my chevy. Didn't seem necessary on MSD wires with hemi. Seems like the plug boot is bonded on them.

    Thanks for any thoughts.
     
    #1
    overkill69, Jul 9, 2015
  2. Mike Canter

    Mike Canter Top Dragster
    Staff Member

    Joined:
    Mar 10, 2004
    Messages:
    4,630
    Likes Received:
    189
    Why not stick with the MSD wires. There are so many racers that have great success with them. Yes, you hear guys saying they have problems with them but that is a small percentage compared to the guys that don't have problems. I talked to one guy that complained and found that he had two seasons on his plug wires. It seems that one of the biggest problems with plug wires on a ProMag 44 fired motor is the insulation breaking down and not the rise in resistance through the wires. There is nothing you can do to test for the insulation breaking down other than running your hand up and down the plug wire with the motor running. According to the MSD guys in the trailer that attend national events is that most problems are caused by aged out plug wires and especially the coil wire that gets eight times the usage. I know some racers that change the coil wire every race and the plug wires two to three times a season. High voltage takes the path of least resistance so the high the cylinder pressures the harder it is for the spark to jump the plug gap so if it finds an easier path through aged insulation then it is going to go that way and not to the plug.
     
    #2
    Last edited: Jul 9, 2015
    Mike Canter, Jul 9, 2015
  3. aj481x

    aj481x Member

    Joined:
    Jan 27, 2004
    Messages:
    976
    Likes Received:
    18
    MSD are really good, but must be assembled properly. Buy the tool and all parts from MSD, then be careful that the plug clip is positioned correctly in the boot and crimp is good on the mag end. Liquid soap as a lubricant really helps.
     
    #3
    aj481x, Jul 9, 2015
  4. jay70cuda

    jay70cuda Well-Known Member

    Joined:
    Sep 30, 2009
    Messages:
    1,139
    Likes Received:
    35
    I've used the Moroso hemi wires and have had really good success with them. So well I'm gonna get another set.
     
    #4
    jay70cuda, Jul 9, 2015
  5. overkill69

    overkill69 Member

    Joined:
    May 17, 2005
    Messages:
    826
    Likes Received:
    0
    Moroso

    We ended up with Moroso on our Chevy and they easily beatdown msd. Is the plug end rock solid? That's the question. I have zero complaints with msd except the ohms get out of spec in about 40 runs. We have all the correct crimp tools.
     
    #5
    overkill69, Jul 9, 2015
  6. youngtuner

    youngtuner Member

    Joined:
    Mar 24, 2004
    Messages:
    956
    Likes Received:
    5
    I have run moroso for at least 5 years now and everyone I know has switched to them. Great luck with them.
    Jonathan Pickett
     
    #6
    youngtuner, Jul 16, 2015

Share This Page





XenPorta 2 PRO © Jason Axelrod from 8WAYRUN.COM