Estimate of converting a 3.2 to twin plug ignition.
 

I am converting my 3.2 to 3.4 or 3.5. I need to figure in the cost of the twin plug ignition system. I think I will go with the 964 distributor setup. Please give rough estimate on cost and a good source for purchase.
Regards, Mark

Mark:

We've done a lot of these conversions so perhaps I can help. :) :)

Here's what you will need for a Motronic car:

1) 3.6 distributor. (install new belt and vent kit before use)

2) Motronic splitter unit.

3) Extra coil.

4) Plug wire harnesses.

5) Machine heads and lower valve covers, of course.

6) 6 plug wire hold-down clips for the lower plugs.

7) Custom chip for twin-plug operation. (Steve Wong is THE man for those)


If you have the engine apart, I'd suggest that you install the 3.6 crank gear, as well.

Steve,

Could you please elaborate on the above a bit more? What's the rationale in doing this?

Hi Kevin:

The 3.6 engine distributor crank gear has a slightly different pitch than earlier CW-rotation ones do and this makes for quieter operation as well as extended life.

These are not expensive ($56) and if the case is apart and the 3.6 dual-distributor is to be used, I'd recommend changing that gear to the 3.6 one.

I don’t suppose you can just swap dizzy gears?

You can certainly do that if you have the correct one at hand. Porsche doesn't sell them,....... :)

How much money?
 

Can anyone give me a rough dollar estimate? Please!

Hi Mark:

Call me sometime during business hours; I don't post any prices here,..:)