Cut Off Switch

[spark-plug 1]

Im just about to fit a cut off switch and relocate my battery do i need a cable that takes the cranking amps? or above of the battery, thickness ect any help would be grate .

[Atari Boy 11]

I moved my battery a few months ago; I got my cable from VWP and used 25mm² stuff which is rated up to 170 amps. I also used a BMW battery junction box (which I stole the idea from Engine Killer). So I can jump-start the car from under the bonnet still.

 

 

 

 

I put the cut off switch in the lower centre console

 

 

Also , these threads may help.

 

Thread 1

 

Thread 2

 

 

Now, If I am being honest, the car does now not start perfectly first time, sometimes yes but not always. I think this may be down to earthing though not the cable diameter.

 

HTH

 

Jonny

[floodys 4 1 Cars]

i put my battery in the boot, earthed to top of beam bolts, fitted cut off in dash, only tip i would say is that if you want to do it so that when you flick switch and kill engine you will need to put the alternator lead to the battery side of the switch because as i found out, when you flick swith the battery is cut but teh alternator keeps the power flowing around engine!!! easy enough job, just run new length of capable wire from alt to switch!!, as to the cable, people will no doubt "put in there thoughts" but i got a goo set of long heavy duty jump leads and used the red lead!! damn sight cheaper than buying cable at about £5per meter i think? !!

[Cloverleaf 1]

The correct way to wire it is so that the feed for the ignition (coil power) loops through the switch also (to the spade terminals underneath). Then when you turn the switch off it breaks the ignition circuit at the same time. The alternator will continue to power as the engine comes to a stop and this is back fed through the starter lead and discharges through a resistor.

Edited April 23, 2010 by Cloverleaf

[large 33]

The correct way to wire it is so that the feed for the ignition (coil power) loops through the switch also (to the spade terminals underneath). Then when you turn the switch off it breaks the ignition circuit at the same time. The alternator will continue to power as the engine comes to a stop and this is back fed through the starter lead and discharges through a resistor.

some cut off switches dont have the block on the bottom to do this. O/P you would need to get an F.I.A type of switch. like this