Switching to coil packs?

[Lesliehedley]

I've currently got a 400SE running an Emerald K3 ECU. My current set up uses the original coil controlled by the ECU and the distributor is used purely to distribute the spark. I am thinking of changing to coil packs as I think this will eliminate any wear or play in the distributor. But will I notice any difference? Is the difference between coil packs and a distributor going to be big enough for me to make the change worthwhile? Anyone done this that can give me any advice before I dive headlong into this?TIA

[Lesliehedley]

Panamax, Moving to coil packs would eliminate the distributor because the coil packs would be connected directly to the plugs rather than the distributor distributing the spark.

My reason for the change is that the idle rpm is a little rough and I thought that might be due to wear in the distributor advance weights system giving me spark scatter. From what Jules says, it looks like it won't make any noticeable difference so I reckon I'll it as is for the present. Thanks for the advice Jules.

[Lesliehedley]

Thanks 350Matt. That's very interesting. It's that sort of slack in the distributor that I thought might be worth eliminating. My Emerald was tuned by Jules and gives 273 bhp with 280 lb ft of torque, and that's with the distributor distributing the spark. So it seems that the coil packs will give a more accurate ignition figure than the distributor. Do you think it would need to be retuned by Jules to get the best out of the coil packs?

[Lesliehedley]

Does anyone know if this coil pack works with the Emerald ECU?
https://efi-parts.co.uk/product/wasted-spark-coil-...