20 replies to this topic

[Ethel]

You can probably find a bit of wire kicking about, salvage the Yellow/white off the ballasted setup?

I can't see when you'd use a switch, why would you want the ignition on without the MJ? You could always just pull the fuse if they are all separate.

[miniJJ]

Could do, forgot about that.

But when I look at the ford 12v wire coming from the coil, it seems to be quite abit lighter than the 8amp stuff I have, but I'll go 15A for peace of mind.

JJ

[Ethel]

15A is what they recommend for wiring up their rev limiter. You I could google up the coil pack resistance and work it out.

I = V/r 12A = 12V/1 Ohm

I dare say you could get away with less as the coil is constantly cycling on & off and that's done in the EDIS. You'd have less worry about permanent grounding with 15A.

[rasputin22]

You will find the ford wire is not made of brass, instead its an conductively improved wire alloy (i believe using silica, or something) hence you can use a smaller wire for the same current. Plus the insulation sleeve will be thinner.

[miniJJ]

Haha, I don't know why I didn't think of working it out, been revising Ohm's law etc for my A level physics exam this month. Apologies,

JJ

[philc]

I can't see when you'd use a switch, why would you want the ignition on without the MJ? You could always just pull the fuse if they are all separate.
[/quote]

the reason I have a switch is so that I can eliminate any problems if their ever is any and then i can rule out the mj