Re: [DML] higher output coils and ballast resistors

["Henry" <henry@xxxx>]

While trying to diagnose my no-start condition this summer, I just dropped in an MSD 8203 coil, and it works great for me with the stock ballast resistor (that wasn't the problem, btw.) Also, I've been warned that this might "cook" the ignition unit, so I'd be interested in what others think aboutrunning this coil with a stock vs. larger resistor.

-Hank
----- Original Message ----- 
From: "Adam 16683" <acprice1@xxxx>
To: <dmcnews@xxxxxxxxxxxxxxx>
Sent: Saturday, October 11, 2003 4:34 AM
Subject: [DML] higher output coils and ballast resistors


> I want to kick up the ignition on my car. I've thought of using the 
> MSD blaster2 coil with 45,000V output. My question is; what size 
> ballast resistor should I use with it?
> 
> SpecialTauto has 1.8ohm resistors for the 25,000V coil. While the MSD 
> blaster2 coils come with a 0.8ohm resistor, which they state "will 
> fit most applications". Would the 0.8ohm or the 1.8ohm work for hte 
> 45,000V coil, or do I need an even larger resistor?
> 
> Thanks! 
> adam price  
> 
> http://www.msdignition.com/coil_directory.htm
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, "content22207" <brobertson@xxxx> 
> wrote:
> > Actually what you're seeing is the ignition at work. Whenever the 
> coil
> > loses its ground (controlled by ignition module), high tension 
> current
> > builds up lightning fast, then is discharged to a spark plug as 
> rotor
> > passes its terminal. If the coil were grounded all the time, no
> > current would ever build up.
> > 
> > Ignition module and tachometer take their signal from small wire
> > (blue? I'm at work and can't remember color) that passes from
> > distributor to compartment behind driver seat.
> > 
> > Take it easy grabbing ignition wires. While coil ground is only 12
> > volts, HT wires can be as much as 100,000 on newer cars. Even stock
> > DeLo is 18,000 or so (which I highly recommend bumping up at least 
> to
> > 40,000).
> > 
> > Bill Robertson
> > #5939
> > 
> > >--- In dmcnews@xxxxxxxxxxxxxxx, doctorDHD@xxxx wrote:
> > > OK, while playing around with the ignition / idle system of 6530 I
> > noted 
> > > something very interesting. As I previous stated, the tachometer
> > makes small 
> > > jumps upward, intermittently. I accidentally touched the wire 
> that
> > goes to the 
> > > negative side of the ignition coil primary circuit (color WS) and
> > noted that I 
> > > was getting intermittent shocks. These shocks were at the same 
> time
> > that the 
> > > tach jumped! When I connected a small neon bulb (i.e., an NE-2 
> for you 
> > > engineering types), the bulb would blink intermittently along with
> > the jumping of the 
> > > tach. (Hey I got fed up with getting jolted so I substituted the 
> bulb 
> > > instead.) Remember that the engine RPM is NOT jumping only the 
> tach
> > is. I suppose 
> > > the tach is getting these voltage spikes and that is why it is
> > jumping and maybe 
> > > these spikes are affecting the idle ECU controller. The spike 
> occur
> > only at 
> > > low RPM up to about 1400 rpm.
> > > 
> > > Does anyone have a clue as to what to do next?
> > > 
> > > Dave & 6530 thank you...
> > > 
> > > 
> > > [Non-text portions of this message have been removed]
> 
> 
> 
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