HEI like I'm 5

Electrical & Ignition

  1. Frank Mopar

    Frank Mopar Well-Known Member

    Messages:
    643
    Likes Received:
    925
    Joined:
    May 7, 2015
    Location:
    Buffalo, NY
    Local Time:
    12:35 PM
    So you answered you question of why the HEI is superior.
     
    • Agree Agree x 1
    • Fran Blacker

      Fran Blacker FBBO Gold Member FBBO Gold Member

      Messages:
      6,886
      Likes Received:
      6398
      Joined:
      Sep 23, 2016
      Location:
      Connecticut
      Local Time:
      12:35 PM
    • Frank Mopar

      Frank Mopar Well-Known Member

      Messages:
      643
      Likes Received:
      925
      Joined:
      May 7, 2015
      Location:
      Buffalo, NY
      Local Time:
      12:35 PM
    • Fran Blacker

      Fran Blacker FBBO Gold Member FBBO Gold Member

      Messages:
      6,886
      Likes Received:
      6398
      Joined:
      Sep 23, 2016
      Location:
      Connecticut
      Local Time:
      12:35 PM
      Frank what does boom mean?
       
    • Frank Mopar

      Frank Mopar Well-Known Member

      Messages:
      643
      Likes Received:
      925
      Joined:
      May 7, 2015
      Location:
      Buffalo, NY
      Local Time:
      12:35 PM
      Boom! that the link explains it all. Well done Fran Blacker

      Ill book mark that article for future discussions :thumbsup:
       
      • Thanks! Thanks! x 1
      • Bobby Sixkiller

        Bobby Sixkiller Well-Known Member

        Messages:
        219
        Likes Received:
        158
        Joined:
        Mar 17, 2019
        Location:
        Northwest Oklahoma
        Local Time:
        11:35 AM
        look at it like this. If you buy an msd coil and msd module it’s not gm parts. It’s msd ignition.
         
        • Like Like x 1
        • 1972GY8SE

          1972GY8SE Well-Known Member

          Messages:
          458
          Likes Received:
          638
          Joined:
          Jun 25, 2016
          Location:
          Rancho Cucamonga, CA.
          Local Time:
          9:35 AM
          712128-04cc957ff280ce0c22593da445b0576d.png
          You guys talked me into it, I am ordering this large cap HEI for mine...sweeeeeeet! And a Quadrajet to go with it.
           
          Last edited: Jul 5, 2019
          • Like Like x 1
          • 1972GY8SE

            1972GY8SE Well-Known Member

            Messages:
            458
            Likes Received:
            638
            Joined:
            Jun 25, 2016
            Location:
            Rancho Cucamonga, CA.
            Local Time:
            9:35 AM

            So, what happened to this?
             
            Last edited: Jul 5, 2019
            • Agree Agree x 1
            • RJRENTON

              RJRENTON FBBO Gold Member FBBO Gold Member

              Messages:
              684
              Likes Received:
              539
              Joined:
              Jul 1, 2015
              Location:
              South Shores area of Decatur, Illinois
              Local Time:
              11:35 AM
              Gentlemen,
              I'm still puzzled as to the infatuation with the GM's HEI system other than the module's compact size. Its still ttiggered by a magnet pick up device. The Mopar distributor uses the same magnet device only a little physically different. In my opinion the large red HEI cap/coil is butt ugly. The HEI system is not without fault...they have been known to fail: module, pick up coil and the rotor burn thru. For my money, I'll continue to use the original Prestolite dual point distributor in my GTX....it works just fine and its a lot easier to trouble shoot and repair. NOS points and condenser are available on the internet or eBay or locally for $15-20. I'll just keep what l have....
              The Pertronix device is a Hall effect switch that also turns the coil primary current on and off...just a smaller package. If you use this device, it has been suggested that a spare be carried...just in case, as they are not readily available in auto parts stores. Just my opinion of course.
              Bob Renton
               
              • Agree Agree x 1
              • Frank Mopar

                Frank Mopar Well-Known Member

                Messages:
                643
                Likes Received:
                925
                Joined:
                May 7, 2015
                Location:
                Buffalo, NY
                Local Time:
                12:35 PM
                There has been enough posted in this discussion so I guess you will never get it and thats ok.
                 
              • RJRENTON

                RJRENTON FBBO Gold Member FBBO Gold Member

                Messages:
                684
                Likes Received:
                539
                Joined:
                Jul 1, 2015
                Location:
                South Shores area of Decatur, Illinois
                Local Time:
                11:35 AM
                Frank,
                I just took a handful of stupid pills so perhaps you can explain the reason (it) to me to which you elude to.
                Bob Renton
                 
              • Frank Mopar

                Frank Mopar Well-Known Member

                Messages:
                643
                Likes Received:
                925
                Joined:
                May 7, 2015
                Location:
                Buffalo, NY
                Local Time:
                12:35 PM
                Post 37 is hei system, not the coil in the cap hei.

                Post 42 has a link that explains it all

                If you happy with your system thats cool, run it but like the Harley guys say “ if I have to explain you wouldn't understand.
                Well its been explained.
                 
              • RJRENTON

                RJRENTON FBBO Gold Member FBBO Gold Member

                Messages:
                684
                Likes Received:
                539
                Joined:
                Jul 1, 2015
                Location:
                South Shores area of Decatur, Illinois
                Local Time:
                11:35 AM
                Frank,
                I appreciate the effort and examples shown and being an engineer, the dicipline asks why (not how). Does the conversion fix real issues or perceived issues. For my 1970 RS33V0A****** I'll stick with the Prestolite dual point distributor. But for my '18 GMC Yukon Denali I'll stick with the individual coil packs and variable valve timing and all of the latest sophistication and innovations.....you pay your money and take your choice.
                Bob Renton
                 
              • Frank Mopar

                Frank Mopar Well-Known Member

                Messages:
                643
                Likes Received:
                925
                Joined:
                May 7, 2015
                Location:
                Buffalo, NY
                Local Time:
                12:35 PM
                The links explain the advantage of HEI. At one point you even answered that question yourself about better combustion in a lean burn system!

                A wise man once old me, don't let arrogance close your mind.
                 
              • Fran Blacker

                Fran Blacker FBBO Gold Member FBBO Gold Member

                Messages:
                6,886
                Likes Received:
                6398
                Joined:
                Sep 23, 2016
                Location:
                Connecticut
                Local Time:
                12:35 PM
                :popcorn:
                 
              • RJRENTON

                RJRENTON FBBO Gold Member FBBO Gold Member

                Messages:
                684
                Likes Received:
                539
                Joined:
                Jul 1, 2015
                Location:
                South Shores area of Decatur, Illinois
                Local Time:
                11:35 AM
                Fran,
                I'm not exactly sure what your little pix (imogee?) represents...I'm sort of old school where feelings or thoughts are expressed in words.
                I was just sort of poking fun with the whole concept of the change to GM's HEI distributor and components for the tangible or perhaps intangible reasons or perhaps just to be different. No animosity intended.
                Bob Renton
                 
              • POMONAMISSEL

                POMONAMISSEL Well-Known Member

                Messages:
                1,111
                Likes Received:
                1446
                Joined:
                Apr 29, 2017
                Location:
                san jose ca 95126
                Local Time:
                9:35 AM
                hey guys , for what its worth to any body out there , i've designed an adapter to install a sm or bb chevy type ign dizzy in a la or a or early hemi's dodge , desoto n low deck chrysler blocks . i did this adapter for my early hemis do drop down the cost of magneto ign for my racers . it works sweet , and takes that down finger bracket at the base away , puts a squeeze clamp directly on the ign dizzy housing . have not offered them to sell to the public yet . so this is exclusive to members only . your not moving it to adjust dizzy timing , so a gasket or just rtv sealant stops oil from the cam valley to keep out . DSC01094.JPG DSC01095.JPG DSC01096.JPG
                 
                • Like Like x 1
                • POMONAMISSEL

                  POMONAMISSEL Well-Known Member

                  Messages:
                  1,111
                  Likes Received:
                  1446
                  Joined:
                  Apr 29, 2017
                  Location:
                  san jose ca 95126
                  Local Time:
                  9:35 AM
                  well rirenton , gm stuff is cheap compared to most of the mopar stuff offered up , just for a sample of costs , a working used magneto for a chevy verses chrysler on ebay , talking vertex type magneto's here , i bought 4 chevy's to one chrysler . so 4 to 1 in costs . how do i know , there are millions of chevys and only thousands of mopars . its just supply and demand . pomonamissel .
                   
                • Fran Blacker

                  Fran Blacker FBBO Gold Member FBBO Gold Member

                  Messages:
                  6,886
                  Likes Received:
                  6398
                  Joined:
                  Sep 23, 2016
                  Location:
                  Connecticut
                  Local Time:
                  12:35 PM
                  Just you both said it all several earlier.
                  Dual points work fine it's maintenance that why electronic ignition, mo. Noticed in ignition guys complaining about condenser failure unless you use NOS, just an observation.
                   
                • POMONAMISSEL

                  POMONAMISSEL Well-Known Member

                  Messages:
                  1,111
                  Likes Received:
                  1446
                  Joined:
                  Apr 29, 2017
                  Location:
                  san jose ca 95126
                  Local Time:
                  9:35 AM
                  fran blacker , is right , i ran a 52 241 hemi dual piont dizzy in my 318 hp , plugs burn beautiful in it . it bolted right in .
                   
                1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
                  By continuing to use this site, you are consenting to our use of cookies.