Can you use Megajolt using a MSD 6al and a locked out dizzy?

poor-cha · Post by **poor-cha** » Mon Dec 13, 2010 4:11 am

Porsche 3.0 engine with webers and some nice street cams for carbs.
Basically I would like the stock dizzy look with crank fire ignition curve programmability.

Could the MJLJ with a ford crank trigger be setup for firing a MSD 6al and coil back through the stock locked out (advance) dizzy?
If you can do this would locking out the dizzy even be necessary?

I already have the dizzy, MSD 6al, blaster coil, magnacore wires etc. and getting the stock (CIS FI) dizzy recurved for webers will cost me $500.
Also in the same vein a twin plug dizzy costs $2700...I know I could machine the cap/rotor mod for way less...it's the other reason I'm asking if this could this be done.

Post by **brentp** » Mon Dec 13, 2010 5:58 pm

It is possible to use a distributor mounted trigger wheel as an alternative to a crank mounted wheel. Search the forum for "72-2". Also, you'll notice that a popular choice for VR sensor is the unit from a Mazda RX7.

Keep us posted on your project!

poor-cha · Post by **poor-cha** » Mon Dec 13, 2010 11:43 pm

I have no problem running a 36-1 crank trigger wheel/sensor.

Can the megajolt be used to fire the single coil MSD 6AL, with all the advance and trigger functions being controlled by the megajolt?
Is there a "how to" on this?

The dizzy itself would be nothing but a cap and (spinning) rotor.
My experience is with SDS fuel injection with crankfire and they can configure it to work this way with MSD.

Post by **brentp** » Tue Dec 14, 2010 4:16 am

Apologies, misunderstood.

The Megajolt is designed to work exclusively with the Ford EDIS module- in your case, the EDIS-6. This eliminates the need for any other ignition module such as the MSD unit. You could sell it to help fund your project

Is there otherwise a specific need or desire to use the MSD box?

Check out the Installation guide if you haven't seen it yet- it shows how the EDIS and Megajolt wire up.
http://www.autosportlabs.net/MJLJ_V4_ve ... tion_guide

poor-cha · Post by **poor-cha** » Wed Dec 15, 2010 9:09 pm

Was just looking into seeing if I could build this but with a programmable curve and crankfire pick-up

Post by **brentp** » Wed Dec 15, 2010 9:22 pm

Ahh, looks like a twin plug (twin spark) application?

This would be possible with two EDIS-6 modules and one Megajolt.

These threads should get you started:
http://www.autosportlabs.org/viewtopic. ... =twin+plug
http://www.autosportlabs.org/viewtopic. ... =twin+plug

There should be more info out there as well.