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MSD or this?

Discussion in '308/328' started by parkerfe, Mar 2, 2005.

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  1. parkerfe

    parkerfe F1 World Champ

    Sep 4, 2001
    12,887
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    Franklin E. Parker
    #1 parkerfe, Mar 2, 2005
  2. msdesignltd

    msdesignltd Two Time F1 World Champ
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    Michael
    #2 msdesignltd, Mar 2, 2005
    Call me Green!, Tell me the advantages in HP and Engine Response by replacing this unit in the Boxer. Is that why the TR has more powerful #'s
     
  3. parkerfe

    parkerfe F1 World Champ

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    #3 parkerfe, Mar 2, 2005
    Call me Green...I don't get it? The TR has four valves per cylinder and a better FI system than the Boxer. I do not recall what type of ignition a TR has though? An MSD igintion will give a Boxer a little more performance via the multiple and hotter spark over the stock Dinoplex. Everyone that I have spoken with that has one loves it. But, to keep the car looking stock you have to either hide it somewhere or gut out your existing Dinoplex box and mount the MSD internals therein;whereas this converted Dinoplex unit seems to do that for you...although, they do not specify what type of electronic system they use for the conversion?
     
  4. msdesignltd

    msdesignltd Two Time F1 World Champ
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    #4 msdesignltd, Mar 2, 2005
    So is it that you cant find a stock replacement or you have elected to upgrade to a transistorized ignition
     
  5. parkerfe

    parkerfe F1 World Champ

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    #5 parkerfe, Mar 2, 2005
    I just want to upgrade. There are plenty of new and rebuilt Dinoplex units out there to buy.
     
  6. msdesignltd

    msdesignltd Two Time F1 World Champ
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    #6 msdesignltd, Mar 2, 2005
    As I asked in my 1st post what do you expect as far as HP increase.
    Just curious, I think the boxer could use a little more UMPH! too.
     
  7. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #7 Rifledriver, Mar 2, 2005
    TR has Marelli Microplex Ign.

    It used to be believed that simply providing enough spark to start a fire was enough and that any more was simply a waste. CD (Dino Plex) units were an acknowledgement that a hotter spark is beneficial. MSD (multiple spark discharge) is an acknowledgement that longer spark is also beneficial. Hotter spark is really needed with rich mixtures, longer and or more sparks are most beneficial for lean mixtures or high compression. Both is best. In other words simply putting a match to the fire does not yield all the horsepower that ignition systems can produce.
     
  8. parkerfe

    parkerfe F1 World Champ

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    #8 parkerfe, Mar 2, 2005
    I was aware that an MSD unit put out multiple sparks below 3000rpm and a hotter spark at all rpm, but I was not aware that it put out a longer spark too.
     
  9. atheyg

    atheyg Guest

    #9 atheyg, Mar 2, 2005
    I think the MSDs are most beneficial to the carb cars which have the fouling, starting and around town issues, their you will see better and more reliable performance and can take advantage of the higher cam profiles vs the Dinoplex, concerning any hp gains I would think it would be marginal at best.

    From what I have learned about Boxer ignitions is the side Marelli mounted distributors fail often, they used these in other cars such as Jags and they all have issues, the MSD probably will help the issues a badly set up distributor will have.

    I just got my distributor back from Don Rudd rebuilding it, he is a master at these cars and retuned my distributor as even from the factory they can be off or improved, his work is first class and was reasonable at $350, I expect a major improvement in performance as it was far off where it should be.


    BTW That distributor at theparts exchange would require 2 at $800 a pop and probably would not perform as well as a MSD, the only other choice I would consider is a Permatune for the Boxer.
     
  10. parkerfe

    parkerfe F1 World Champ

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    #10 parkerfe, Mar 2, 2005
    It is my understanding that a Boxer would only require one of the converted Dinoplex units from The Parts Exchange since a Boxer only has one distributor. Cars with two distributors would require two of the units. I have ordered an MSD unit though since I am confident of its performance.
     
  11. Bryan

    Bryan Formula 3

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    #11 Bryan, Mar 3, 2005
    Longer in duration AND longer in physical length, but only if you open the gap.

    Because the spark is stronger and the duration is greater, it is possible, but not always recommended to open the gap on the plugs; hence, a longer spark.

    I am not sure about hotter, but I don't think that matters anyway.
     
  12. Bryan

    Bryan Formula 3

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    #12 Bryan, Mar 3, 2005

    Does your Boxer have only one Dinoplex now?
     
  13. parkerfe

    parkerfe F1 World Champ

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    #13 parkerfe, Mar 4, 2005
    Yes, a Boxer only uses one Dinoplex as it has only one distributor.
     
  14. Frank R. Masiarz

    Frank R. Masiarz Karting

    Nov 10, 2003
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    #14 Frank R. Masiarz, Mar 14, 2005
    Hi.........

    Have an MSD unit and it works very well indeed.

    Would not buy any old Dinoplex unit, as they can not be rebuilt and will only continue to deteriorate in the heat of the engine compartment, resulting in engine stoppage on the side of the road.

    Happened to me three times before the "upgrade".

    Frank....23005
    www.masiarz.net/bb_resource
     

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