[DML] Re: DMCH Performance Engine (SpecialT Parts)

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

What you are observing is the "Weakest Link Syndome". The stock
ignition system is not made for this large increase in voltage. Even
with the better wires you are not upgrading the cap and rotor. By
inceasing the gap on the spark plugs you increase the insulation
breakdown requirements of the entire system. Some of the parts are not
up to it. You cannot change the gap inside the distributer between the
cap and the rotor. You also cannot keep the rotor from breaking down
and grounding on the distributer shaft. You are also increasing the
current requirements on the ignition ECU. You may get a hotter spark
but how long will ALL of the components live? BTW increasing the gap
has the side effect of delaying the spark so you might want to advance
the timing to compensate. Again, you cannot just change some parts
without considering ALL of the effects on the entire system. I agree
with you that the stock ignition system can be improved but you MUST
do it on a systemwide basis. Just replacing some of the parts is not
enough. You MUST consider reliability, how long will your improvements
last and is it worth it compared to "stock"?
David Teitelbaum
vin 10757



--- In dmcnews@xxxxxxxxxxxxxxx, "Matt Spittle" <supermatty@xxxx> wrote:
> 
> 
> Bill,
> 
> Rich A. and I also thought you could use a bigger plug gap with the
> hotter coils, so I (using an MSD blaster2) gapped mine to 0.031 or so
> , where the manual says the upper limit is 0.28 normally.  I believe
> Rich A. also gapped his similarly.  The result was that my car
> couldn't rev much over 3500 under load.  Rich had better luck, but
> 








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