"Getting rid of the plug wires not only saves money, it also improves the durability of the ignition system. No high voltage wires means no voltage leaks and no misfires due to "bad" plug wires. Using individual coils for each spark plug also means the coils have more time between each firing. Increasing the "coil saturation" time (the time the voltage to the coil is on to build up its magnetic field) increases the coil output voltage at high rpm when misfire is most apt to occur under load."
The kit contains everything needed, very nice indeed.
Before!
BMW cover removed and plug cables pulled to one side.
Plastic cable housing removed and two of the head retaining bolts removed. These will be replaced by the bolts retaining the COP plate.
After! The plate containing the four cop packs and cable harness is simply pressed into place and bolted down with two hex bolts. The socket to the left that went to the ignition coil now goes directly to each of the coil packs. It would be nice to be able to use the BMW cover again but there is no way to keep it in place. Mind you, without it the cops still looks pretty cool!
I'll remove the old ignition coil (centre) and plug leads over the weekend.
I took the car for a spin today, literally! No, it wasn't that bad but the roads are quite damp so traction is pretty bad. One thing I did notice was the sound had changed since the cops were installed. Seemed to be a deeper, throatier sound. I'm not an expert but I presume the firing is cleaner, the fuel burnt more efficiently.
I dropped into my favourite metal shop to have a chat with Kurt. Earlier on in the year I asked him if he could make me up a stainless steel grill to replace the black one. It looks great so far, no hurry I'll pick it up in the spring.
We have had a couple of frosty mornings and even a light snow fall but I'm still hoping to drive a couple more times. I have to say that the soft top has been brilliant even down to +3 oC. No need to wear skiing hat, goggles and gloves any more. The only thing that is stopping me drive is the wet and icy roads.
