ECM fault/Plugs

[CSH-HQ]

Point were only about 92% effective at starting a sufficiant flame front for 
ignition
Early HEI raised it to like 96, and the best DIS 97.  Supposedly the newest 
coil per cylinder are at 99% succuess rate.
  There is just so much stratifing, and turbulence that getting a good 
complete release of the spark energy is difficult.
  They "try" often to bridge this with plugs that erode quicker for a better 
ion trail, or multipul spark paths (trying to avoid the turbulence).  Some 
plugs even have shrouds on them...
  As the HP level goes up generally your at a "lean" best mixture, the 
"lean" raises the required firing voltage.  Some people, just keep the WOT 
mixture a tad rich to help crutch the ignition system (unknown to them...).
  Grumpy

>>Grumpy
>>  If plugs make a major difference in your car's performance, it's cause the 
>>ignition system is junk.
>
>How is this?   I can say that plugs have never made to big of a difference
>for me - I've used AC's for quite a while since I've never had a problem
>with them, and they seem to fire even when completely covered in crud.  The
>"worst" I ever used were Splitfires which seemed to foul easier than any
>other plug.
>
>
>--> Bob Valentine
>--> bob at tecmark.com
>