Twin plugging with 964 twin dizzy?

[JoeMag]

Guys -- Has anyone here done this on 930 in their efi conversion? What is involved? At first blush seems like a much easier (and maybe less costly?) conversion than multi coils w/trigger wheel on crank.

--Joe

[Rob 930]

Joe,

There are pros and cons to doing this, which I'll let others hash out. But it can be done with a twin distributor (which used to be debated). Here's a thread where I posted a pic of an EFI 930 with a 964 distributor.

Pelican thread

Rob

[JoeMag]

Rob -- thx. ...that an old post so I'm hope'n some folks can give details of how done.

YermanCars -- I just was reading another post and see you're going to do this. What's required?

[mb911]

saw that to. Also saw his for sale thread. I wonder if he is supercharging it or something as he was talking about DE's etc.. Anyhow on topic I think the EDIS is the way to go its pretty cheap if you already have EFI . if not go the dizzy route

[JoeMag]

EDIS?,,... don't recognize that.

[Lukesportsman]

Crank fired (timed to cam, obviously) distributorless ignition with typically multiple coil packs. Think new car applications applied to our older cars.

Many are using the Ford packs, which I also plan to do. There are some articles here and elsewhere...usually in reference to TECII or MegaSquirt type EFI's though obviously others apply.

[A930Rocket]

If you use a 964 dizzy, don't you have to change the gear drive on the crank?

[Lukesportsman]

Like 930Rocket suggests, don't SC and 930 engines require a reverse rotation dizzy or gear swap?

[YermanCars]

Originally posted by JoeMag
Rob -- thx. ...that an old post so I'm hope'n some folks can give details of how done.

YermanCars -- I just was reading another post and see you're going to do this. What's required?

I have not done it yet, but I will over the winter. The reason I am doing it is because I purchase a SDS efi system that uses the distributor for ignition, not coils. I was force to this path because of it. I will be running 2 ignition boxes, 2 coils and the 964 twin dizzy. I believe on a 3.2, I don't need to change the gear, but on the SC and 930's you do.

[YermanCars]

Originally posted by mb911
saw that to. Also saw his for sale thread. I wonder if he is supercharging it or something as he was talking about DE's etc.. Anyhow on topic I think the EDIS is the way to go its pretty cheap if you already have EFI . if not go the dizzy route

I would never supercharge my Porsche. I am maybe looking to change my setup around a little.

[mb911]

glad to hear. Can't wait to see the next setup.. good luck

[JP911]

964 distributor will require a 3.6 dizzy drive gear on the crank. Contact Steve Weiner at Rennsport Systems for more info.

[WydRyd]

Originally posted by JP911
964 distributor will require a 3.6 dizzy drive gear on the crank. Contact Steve Weiner at Rennsport Systems for more info.

That's for the 930 and SC's right? For the 3.2 Carrera, it's simply a drop in affair?

Can someone plz verify?

[YermanCars]

Originally posted by WydRyd
That's for the 930 and SC's right? For the 3.2 Carrera, it's simply a drop in affair?

Can someone plz verify?

Yes, The twin dizzy is a plug and play w/ the 3.2.....