Re: Spark Plug

From: Gary Shook (gary.shook@mci.com)
Date: Sun Nov 01 1998 - 12:47:31 EST


The stock champions are lame even when they are in spec... get some new
plugs (Champion Truck plugs, Autolite Double Platinums, Bosch Platinums and
AC Rapid Fires all have good favor with someone...depends who you ask) and
get out the breaker bar... out of 8 plugs, I broke 6 in my Ram when I
changed them @ 1500 miles... The porcelain portion breaks... you can still
get the rest of the plug out.

I used Autolite Double Platinums over-gapped to .045... the idle smoothed
significantly, but I didn't do any other testing... the throttle response
seemed slightly better... but the main advantage to the double platinums is
that they don't wear out... these are the plugs they run in vehicles that
are rated for 100,000 mile tune ups..

a warning about over-gapping: there can be some signifcant gains had by
over-gapping at the expense of driving up the secondary voltage... the first
thing to go will be the stock plug wires- get a good 8mm+ set.. the 7mm
insulation just won't last if you bring up the voltage... I would also
recommend a better cap and rotor- with brass terminals.. the aluminum just
oxidizes too quickly... my .045 is quite conservative, as I have not
received my new plug wires yet... I'll probably open it up a little more
when I get them installed.

Gary Shook

>I read a post a week or so ago where someone said their factory installed
>plugs were way off spec so l decided to check mine today. Problem is l
can't
>get these plugs to come out. I don't want to put too much force on them.
>With my luck I would break one off in the block. Any suggestions on how to
>get them out? Also, once l do get them out, what is the best gap to use?
One
>more ?, l read several post where after market truck plugs were said to
>perform better. Exactly how do they perform better? Is it better MPG,
>quicker throttle response, what? Thanks for the help.
>



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