Estimate of converting a 3.2 to twin plug ignition.

[mnmasotto]

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

[Steve@Rennsport]

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.

[KTL]

Originally Posted by Steve@Rennsport

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?

[Steve@Rennsport]

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.

[cgarr]

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

[Steve@Rennsport]

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

[mnmasotto]

Can anyone give me a rough dollar estimate? Please!

[Steve@Rennsport]

Originally Posted by mnmasotto

Can anyone give me a rough dollar estimate? Please!

Hi Mark:

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