TIP: Click on subject to list as thread! ANSI
echo: oldcars
to: LANDON ROBINSON
from: JIM BROWN
date: 1996-11-21 08:49:00
subject: Gas

 > Another form of bogus advertising I've come across is
 > that installing what- ever-brand "monster coil" will help your engine make
 > more horsepower. It does not take 45,000 volts to make the jump across
 > a standard spark plug that is found in just about every engine in every
 > street car in America.
 > Although I've been told that such coils will help in
 > engines that work in the upper RPM bands, very few cars on the street ever
 > see RPMs that high. I put my '68 Impala 327 on a 'scope and found that
 > plain old spark plugs gapped at 0.035" (thirty five thousandths of an 
nch)
 > only needed 6,000 volts to jump the gap on the spark plugs with a stock
 > Delco-Remy ignition coil.
    That's why you adjust or "tune" the plugs to run with the new coil.  You 
are right, running a factory gap on a hot ignition is a waste of time and 
money, but open up the plug gap to take advantage of the higher power output 
of the new parts.  If I had run the factory gap of .042-.046 with my Jacobs 
ignition, I would have wasted my money.  But presently I run .065 with the 
ignition, I have better mileage and better power.  The engine idles much more 
smoothly and is a pleasure to drive.
   Jim
Death is the end of one illusion and the beginning of another.
--- FMail 0.96â
---------------
* Origin: Terminal Velocity, Box Elder, SD (1:293/642.357)

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