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-   -   Interesting tips on Spark Plugs (https://www.offshoreonly.com/forums/general-q/176175-interesting-tips-spark-plugs.html)

CNC 12-27-2007 01:21 PM

Interesting tips on Spark Plugs
 
Some of it I knew...some I had forgotten....

http://www.racingjunk.com/s/JohnsSaftyTip

fastlane40 12-27-2007 02:11 PM

Very interesting,especially the part about the open side towards the intake valve.

Griswald 12-27-2007 02:17 PM

In many of my drag motors, I've tried to measure a difference in hp on the dyno and could never net any positive results indexing vs not, indexing. Other than the ability of saying, "Hey, my plugs are indexed!" it never showed anything positive. PITA to get them all the same, too.

BeakBoater35 12-27-2007 08:30 PM

"zactly" what you said. I indexed my heart out on 2-stroke snowmobile motors...what a waste!


Originally Posted by Griswald (Post 2384709)
In many of my drag motors, I've tried to measure a difference in hp on the dyno and could never net any positive results indexing vs not, indexing. Other than the ability of saying, "Hey, my plugs are indexed!" it never showed anything positive. PITA to get them all the same, too.


Reckless32 12-28-2007 08:51 PM

It's a theory yes....but it makes you feel good....:cool-smiley-027:


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