Jump to content

Lumenition Ignition ballast resistor or not?

Recommended Posts


A very nice AA man got me on my way again today by diagnosing that the 1.5 ohm ballast resistor on my magnatronic ignition had failed. I had a spare lucas coil which we fitted, by passing the resistor and all seems fine. I was never a fan of the bloody great resistor anyway so am wondering if anyone has any views on running on the current setup.

Link to post
Share on other sites

If the coil was designed to work with a ballast resistor it may overheat/die early if used without one.


The ballast resistor effectively reduces the coil voltage when running to about 9v

The clever bit is that the ballast is bypassed for starting giving maximum spark power for starting.


My cr car had its ballast bypassed in about 1990, and has been fine ever since with a standard coil



Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

Please familiarise yourself with our Terms and Conditions. By using this site, you agree to the following: Terms of Use.