Electronic ignition module in my P6

Wilfred Oldtimer

Active Member
Hello again,

This afternoon I installed an electronic ignition module in my P6. This module is a relative cheap alternative for a new distributor with build in electronics. Obviously that would be a better choice in terms of possible mechanical issues on the old distributor, however with this module I build in there’s a big improvement in stability and the fact that the breaking points won’t have to control a high voltage anymore. So definitely a benefit.
The engine runs smoother now and should also become more friendly in fuel consumption, I hope.
It’s a module which has to be assembled, so it need some solder skills

Wilfred


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I didn't really research the different options when I decided to go the electronic ignition route.
Ive had electronic ignition for possibly eight years now
The biggest noticeable improvement was the way shorter cranking time on my poor abused starter motor.
yes -smoother running
yes -quicker accelerator responce
yes- fuel improvement
yes yes to all the other stuff that helps my P6 cope with her 50yrs
go well , good move
Gerald
 
If the points ignition is in optimum condition it'll make no difference at all. The point being points ignition doesn't STAY in optimal condition whereas electronics should.
 
Hi, that is true, however if you compare the pulses with an oscilloscope, you will see a much more stable picture with electronic ignition than with breaking points alone, so over the entire rpm range. Especially in idle the engine is more relaxed. At least in my case..

Wilfred
 
The main challenge for ignition is actually at the higher end of the rev range. Mechanical points can bounce and the charge time for the coil is much smaller, especially in engine with high cylinder counts. At idle with points that would indicate some issue.

One of the best things you can do is run something like the GM HEI module. It takes ignition to to the next level in that it's not simply a transistor switch. It hasfeedback to control the duration/dwell. What this means is you don't need a ballast and can run coils down to 0.3ohms.

This module works directly with the electronic version of the distributor (SD1 onwards) and only costs £20.
 
Ok thanks, I will do some research on that.
For now the improvement is good enough and I will focus on other things which have to be looked at.

Have a great and sunny weekend!

Wilfred
 
Hello again,

I decided to remove the old distributor and replace it with a modified new one with an imbedded electronic module, so no breaking points anymore.

The vacuum part on the old distributor was defective anyway and in price it didn’t make a big difference with a “ normal “ one.

So, one more to be removed from the list.

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Can anyone tell me which brand of module I have installed. It came with the car, and currently there is no spark, some of the wiring goes back into the cabin.....I assume for the tach? Any assistance will be appreciated.
 

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Morning,

That’s hard to tell from a distance, maybe this diagram helps you out. The only difference with your example is that the control module is inside the distributor.

To measure is to know ;)

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