I have a 1970 911s..is a pertronix igniter advisable...and is there any info available on the actual wiring schematic from someone with the same model.the included instruction seem too generalized...I don't want to experiment and ruin something. Any help would be very appreciated.

__________________
This post was auto-generated based upon a question asked on our tech article page here: Porsche 911 Setting the Timing, Dwell and Idle Speed | 911 (1965-89) - 930 Turbo (1975-89) | Pelican Parts DIY Maintenance Article

I don't have any wiring for it.

I opened a post in our forums. A Pelican community member may be able to answer your question.


- Nick

Desirable for what? It is a good replacement for the stock set up but adds nothing to performance.

Pertronix are well known for spontaneous failure. Sometimes they last a long a time. Sometimes almost no time at all. More practical to keep a spare set of points in the glovebox than a spare pertronix. Seems advantageous to eliminate the mechanical action/limitation, and wear, of points, but at the cost of a car potentially dead on the side of the road, maybe not a good "upgrade".

I've put pertronix in every car I've owned, never had a failure in 17 years, I would recommend it.

Only failure I had was when the pick-up made contact with the ring and ground a grove in the pick-up. This was due to mechanic error. He had adjusted it poorly.

Otherwise, no problems ever.

I recently changed my points to pertronix. I just drove 300 miles round trip to and from Hershey without a blip.


I don't know if a '70 911S has a CDI or not, but if it is a CDI, the wiring is different than for non-CDI and I've attached it below. I didn't learn this until after I made the switch, but with a CDI, the points are just a trigger; spark voltage isn't flowing through the points, so there's little if any wear on the contact surfaces. If I had known this before I bought the Pertronix, I made have just stuck with the old points. As far as keeping a spare set of regular points in case the pertronix fails, in my case, I had to remove the distributor -I can't imagine doing that swap roadside.

http://forums.pelicanparts.com/uploa...1461002881.jpg

I have put it in my cars with good success. Keep spare points and condenser in the car, just in case it fails, but it has never come up. Has been a very straightforward swap on my cars, and I would not hesitate to do it on the side of the road.

If your car has an original CDI box (as it should) then the Pertronix will have a very easy life. The CDI puts only a very small load on the Pertronix as opposed to a conventional Kettering ignition where the Pertronix has to switch several Amps of coil current. As mentioned a few posts up, the only advantage will be not having to monitor the wear on the points rubbing block (which changes timing). And of course you won't be having points-bounce issues when you rev above 8000 rpm ... ;)