Re: [DML] Re: Bolt On Performance (High Voltage Arc)

[Ron Peters <ascmclaren1987@xxxxxxxxx>]

Hi all, excuse my ignorance, Im new to the D
community.
Is there a breakerless ignition that will work on my
stock engine?
I'd really LOVE to upgrade in that area!

thanks 

-Ron #003831

--- content22207 <brobertson@xxxxxxxxxxxx> wrote:

> Forgot to mention points (in the 60's breakerless
> ignition hadn't been
> invented yet).
> 
> The higher the voltage, the greater the arc when it
> jumps through air.
> You should see railroad locomotive contacts when
> they close -- fire
> shoots straight out like a flame (a fireproof shield
> called an "arc
> chute" protects everything else in the electrical
> locker). In an
> automobile arcing from high voltage ignition will
> eat up a set of
> points. 10,000 volt ignition may also have been so
> prevalent to
> preserve them.
> 
> I of course run breakerless ignition. There's no
> penalty for arcing.
> In fact it's quite beneficial within my combustion
> chambers,
> especially since it's occuring 10 degrees BTDC (less
> time for the
> flame to spread). Note also that high voltage
> ignition works reliably
> no matter how cold or damp the air mixture is.
> 
> Regarding Bosch's "Blue Coil": In the 70's it was
> considered a racing
> coil. 18,000 volts was obviously pushing the
> performance envelope then
> (I wonder if owners of 10,000 volt systems at that
> time lambasted Blue
> Coil users for wasting snake oil money, as HEI users
> are so criticized
> today?). Performance bar has been raised since. The
> Blue Coil is
> positively pedestrian now, no hint of its
> performance heritage.
> 
> A useful analogy in this debate might be the
> internet connection I'm
> using right now. At one time my 56K (nee 33K) modem
> was state of the
> art. Then came broadband. As it was spreading, I
> remember telling
> people that my dialup connection still worked
> excellently and gave me
> all the performance I needed. There was no reason to
> upgrade.
> Broadband was wasted snake oil money in my mind.
> Then I tried it....
> 
> Bill Robertson
> #5939
> 
> >--- In dmcnews@xxxxxxxxxxxxxxx, "content22207"
> <brobertson@...> wrote:
> >
> > Come on Martin, you know that you can't run
> aggressive ignition
> > (advance and plug gap as well as spark energy) on
> forced induction.
> > Even high compression gets dicey. MSD modules can
> compensate for turbo
> > boost, if I'm not mistaken.
> > 
> > Probably the only way manufacturers were able to
> get away with 10,000
> > volt ignition in the 1960's were 10:1 and 11:1
> compression ratios that
> > prevailed. Timing was much closer to TDC as well.
> That may be one
> > reason GM pursued HEI in the 70's. Compression
> ratios dropped
> > precipitously, and spark moved closer to the
> bottom of the cylinder
> > for emissions. Basic engines didn't change a lick,
> however (every
> > domestic engine used in the 70's was a dumbed down
> 60's design, with
> > various bolt on emissions devices). I know my
> 1977-1979 Ford products
> > are much happier with high voltage ignition than
> the original coils (I
> > do retain the Duraspark modules). Everything
> changed radically in the
> > 80's, but HEI may have been a necessity in the
> 70's.
> > 
> > Bill Robertson
> > #5939
> > 
> > >--- In dmcnews@xxxxxxxxxxxxxxx, Martin Gutkowski
> <martin@> wrote:
> > >
> > > I can tell you that a stock original coil runs
> the spark quite
> happily 
> > > on #2727's Renault turbo engine at 1.2 bar of
> boost. A so-called 
> > > "performance" coil started misfiring at about
> 4psi...
> > > 
> > > Martin
> > >
> >
> 
> 
> 


Ron Peters
Coupeville, WA / Denver CO / San Antonio, TX
1981 Delorean #3831 - Sept 1981.
1984.5 GT350 Mustang #2027 of 5261 made - March 15, 1984
        www.gt350mustang.com
1964.5 Mustang coupe #407 of 
1987 ascMclaren convert.
2000 Mach 1 Convert.
1942 Sperry 60" Carbonarc Searchlight
        www.searchlight-express.com
        www.sky-view.com
and several others!

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