View Single Post
Roland Kunz Roland Kunz is offline
Senior Member
 
Join Date: Nov 2000
Location: Stuttgart FRG
Posts: 2,307
Hello

Yes the Bosch CD unit has the ABC out plus the seperate ground.
The Output from that Box is send to a "coil" and transformed from 500 Volt to 50000 Volt.

If you use a standard coil they mostly run on 12 Volt or on 9 BVolt ( High performance )

The system "might" work with a normal coil for a while but the CDI transformer will not work in combination with a normal ignition. I never tried it as the CD unit maybe will not survive it and this is to big $ to test it even on my own car.



To prevent people mix up the systems the contacts ( terminals ) have differnt markings depending on the system.

To make it simpler:

On the CD Box:

A is Voltage out to the A contact on the transformator
B is 12 Volt input on the Box
C Input from the breaker contact

On the Transformator:
A is the incoming spark from the CD unit
B is GROUND

It is absolue important that the CD box and the Transformator have good ground and it is important to have the A wire shielded with the ground to the CD box as 500 Volt with some Millijoule behind it can kill persons.

Grüsse
Old 11-25-2001, 06:05 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)