CDI+ installations Latest Topics

Unboxing the Classic Retrofit CDI+ ignition unit

Tue, 28 Nov 2023 09:09:09 +0000

Take a look at our incredible CDI+ ignition unit as it comes in the box. Key to a great spark and a solid idle, this plug and play mappable dual-spark ignition unit will transform the responsiveness of your classic car.

How to install your CDI+ unit and control the ignition with mappable spark

Wed, 10 Jun 2020 08:24:05 +0000

Here's a great video from Jonny on installing our CDI+ unit and locking the distributor to set the CDI up to control the ignition curve. Questions welcome in the CDI technical forum.

How to ‘dial in’ your CDI+ timing using a locked distributor

Wed, 06 May 2020 12:32:18 +0000

It is always best to lock the distributor weights in the fully advanced position. Firstly, If the locking fails, then the engine cannot be over-advanced. Secondly, in most cases it means you won't have to re-position the drive gear.

Procedure:

1) ‘Fixed Timing’ means that the CDI unit does not adjust the timing. You need to clear this box in the configuration (no tick) to enable the CDI+ to control timing.

2) Take the maximum advance required for the engine and subtract the static advance (typically 5 BTDC). 30 - 5 = 25.

3) Draw a ’simplified' curve (below) with max 25 and set the ’Trigger Point’ value high enough so that the graph is below the red area. (the 0 idle area is just so you can start the car easier)

4) Start the engine and bring it to 2000 RPM+ and adjust the distributor so the timing light reads 30 deg. (in my graph anything above 2000 gives 25 plus the 5 static = 30).

You now have the timing dialled in so you can do anything you like with the curve.