Mopar Muscle Association UK

The Dizzy set up is pretty much standard on my 70 Charger 383 engine.
I was thinking of installing a complete electronic ignition type dizzy.
Any advice on what is best set up and why to buy would be appreciated...
Cheers
Rob

An electronic ignition set up is well worth it and not too expensive nowadays.

You will find with modern fuels that the motor benefits from a lot more initial timing - at least 15 degrees and nearer 20 with full advance timing pegged to 34 degrees.

There are LOADS of threads on the message board about ignition timing.

Mancini racing sell conversion kits based mostly on late model factory components, reliable, easy to fit and can look very much like stock if that concerns you. If you wanted something that incorporates a rev limiter then FBO do a similar kit that comes with their own improved ECU but that's considerably more expensive. IMO that as exotic as you need for road use.

Having been down this route before (and suffering much pain on the way - not due to elec ignition per-se, but I kept blowing them up - dodgy alternator) I eventually settled on an all-in-one-MSD dizzy. Couldnt be happier with it - 12v in one end, spark out the other. For an all in one unit its great, I would recommend.

As the chaps say, plenty of docs on doing the regular conversion.
Ingredients are elec dizzy, orangebox, voltage regulator (dont use the old one!) and a bit of loom modification. Jobs a good 'un. Oh, and of course, the mandatory 'mad electrical' ammeter bypass.

You could do worse than put an ad on the 'wanted' section - sure there is a set in a shed somewhere.

Thanks Guys, think i will ask if anyone has a setup they want to part with!

Rob

morgan wrote:voltage regulator (dont use the old one!)

good advice, but being a ’70 it should already have a solid state Voltage Reg

In 1970 Mopar switched from an analog type voltage regulator to a transistorized regulator …

http://www.mymopar.com/charging.htm

always good to double check though

I’m sure Dave999 will be a long in a minute with an awesome write-up and diagrams for using a HEI module in place of the orange box

If not have a look in here … along with some other options inc Pertronix

http://www.moparuk.com/forums/viewtopic ... hlight=hei

kind said it on the other thread

but what I will add is

a standard electronic dizzy with decent bushes no play

and the mechanical advance limited so you can set it up with enough initial advance 12-15* to be clean at the tail pipe at idle and not winding in masses of advance no more than 34 at 3000 rpm will work well

they seem to need about half the advance that was there originally taken out to cope with modern fuel

and if you want to get 20 mpg connect up the vacuum advance to the ported vacuum port on the carb (the pipe with no vacuum when the car is idling it goes into the carb bore above the throttle plates)

this will pull in anything up to 50 in. when the throttle is closed or nearly closed but the engine is spinning fast which could be too much...... but might not be. the fuel air mix gets stretched by the vacuum and makes for a really slow burn so massive advance is necessary when you cruise or are coming off the gas at speed.

making use of this crap mix saves you having to crack the throttle further and saves fuel in town traffic and stop start motor way situations.

Turnip on this board sells the advance limiting plates and spring sets for original mopar dizzys

try to avoid 1990s mopar performance distributors. they have a reputation for timing scatter caused by very poor advance mechanism and not enough mass to the advance weights


Dave

more chuntering on the same topic here

http://www.moparuk.com/forums/viewtopic ... hlight=hei