Thanks. I'm very good at learning from experience. I think the term
"Yet another F&)^^&-(&^^( learning experience" was coined just for me.
Watch out for too hot of a spark. The 25D Distributor was just not
built with adequate clearances and tolerance to handle too much juice.
High speed shorting and tracking will ruin top end performance as the
little electrons go where they will instead of down the plug wires.
I've been contacted by a number of racers that converted to electronic
ignition in the 25D, then had major tracking problems under high loads
and constant track conditions. Most of them were running too hot of a
coil or MSD system. For the street they work fine.
The 45D has a bit more space between the critical bits and will handle
hot ignitions better as it was designed from the get go for electronic
ignition demands.
Kelvin Dodd
> -----Original Message-----
> From: kmwheeler@ualr.edu [mailto:kmwheeler@ualr.edu]
> Sent: Thursday, July 28, 2005 12:24 PM
> To: Dodd, Kelvin
> Cc: miket@maine.rr.com; mgs@autox.team.net
> Subject: Re: RE: Strange Ignition Behaviour (was This is scary stuff)
>
> In the vernacular: "you da man!".
>
> Actually (specific years aside) I think in the case of the rally car
it
> was a coil that was suffering from primary
> winding failure (shorting out). I figured it out when I was looking
> through a shop manual, saw a resistance
> value for the coil and thought "Hey, I are a engineer. Go to lab and
get
> ohm-meter thingy!".
>
> Coil was replaced with a Lucas Sports Coil. Later points were
replaced
> with some nice non-melting,
> non-"give me attention" semiconductor bits. Then I was adjusting
mixtures
> with a color tune and
> get smacked. Wow! I've never checked my personal calibration in the
> kilo-volt range, but suffice to say
> (from experience) that the electronic ignition plus sports coil makes
a
> spark that is far more attention
> getting than any points type system that I've been hit by.
>
> I will never go back to points, unless I'm racing in a
vintage/historic
> class that requires it.
>
> -Keith
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