Re: [DML] Re: Bolt On Performance (High Voltage Arc)
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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



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!

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 



To address comments privately to the moderating team, please address:
moderators@xxxxxxxxxxx

For more info on the list, tech articles, cars for sale see www.dmcnews.com

To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/dmcnews/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/dmcnews/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:dmcnews-digest@xxxxxxxxxxxxxxx 
    mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    dmcnews-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/
 


Home Back to the Home of PROJECT VIXEN


Copyright 2006 ProjectVixen.com.  All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
DMCForum Mailing List Archive  DMCNews Mailing List Archive  DMC-UK Mailing List Archive