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Electronic ignition?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Flyinhi86, Jun 22, 2001.

  1. Flyinhi86

    Flyinhi86 Registered Member

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    Can anyone give me the lowdown on these units? They seem to be a good upgrade to your vehicle, and well worth it. How do they hook up when you have a distributor?
     
  2. 1bad82k5

    1bad82k5 1/2 ton status

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    Your 86, unless it has been changed, already has electronic ignition. The HEI unit that you have is about as good a unit as any you can buy as far as a stock to mild engine goes.
    eric

    Hell, it don't really matter....it's just for my race car.
     
  3. CaptCrunch

    CaptCrunch 1/2 ton status

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    I agree... for an 86 get a MSD coil and gap the pluggs .060 over and you will see just about the same amount of gains. I do believe the msd offroad box helps a small bit in the mpg area because of it's spark patterns, but still not a real bang for the $200 price tag.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <A target="_blank" HREF=http://www.geocities.com/milnerlives_2000/blazer.htm>http://www.geocities.com/milnerlives_2000/blazer.htm</A>
     
  4. Pugsley

    Pugsley 1/2 ton status

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    It also pays to get a set of quality wires - MSD, Taylor, Delco to name some of the best - Expect to spend a minimum of $40.00 for a decent set, but you'll thank yourself in the long run.

    I'm so poor I can't even pay attention [​IMG]
    <A target="_blank" HREF=http://pugsley.alloffroad.com>http://pugsley.alloffroad.com</A>
     
  5. 502Burban

    502Burban 1/2 ton status

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    I have run MSD's 6 series boxes on several vehicles, and always found them to be worth the $$. None of these had an HEI to begin with, though. Since you probably have an HEI system on your rig, you will probably find the biggest improvements at rpms above 4000, if you ever go there. With a trail rig, this may not be worth it, since you probably aren't revving that much very often.

    As already posted, your best bang-for-the-buck will probably found with an MSD coil upgrade to the HEI system. However, if you want to see wiring diagrams for hooking-up the MSD box, here is a link to their instruction page on their web site: http://community.webshots.com/user/robbrj
     
  6. scrapmetal

    scrapmetal 1/2 ton status

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    I agree with the 502burban fella, I have MSD on everything I own and get 16's with 38's, and my wifes Blazer gets 16-18 as long as Im not driving it, and my Trans-am will get 20 mpg on open road, if I can keep my foot off the floor board, and thats with a .403,, MSD rocks, course I have the hig out put coils too with there wires too boot,, with platinum tipped plugs,, dont grab a wire, there prett well insulated but I accidentall rubbed the boot one day,, damn,, it sent me out the side of my lifted blazer, and my arm hurt the rest of the day,, they'll smoke ya,, ya wanna play,, ya gotta pay,,

    Never been stuck, just temporarily delayed.
     
  7. 90blzr

    90blzr 1/2 ton status

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    16 mpg with 38's?!?!?!?!! Got any tips on how to do that? I cant even get that with 33's!!
     

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