fourspeed

just wanted to get some feedback as to what wire and location/color to use for a hidden kill switch on an 86 IROC and some locations where you hid your switch
thanks
terry in orlando

MikeS

I can tell you about the wire I switched, but not where I hid my switch....Orlando is just a little too close . Anyways, I switched a power wire to the ECM from over the passenger's feet. I'd have to go look to see what color it is. I'm pretty sure it is an ignition switched 12V power source to the computer. So, when I turn off the switch, my car will crank, but won't start.

dans87ta

Use a reed switch for the switch. Its a magnetic switch that is on when there is a magnet attached to it. Hide the switch somewhere behind the dash or where ever, and then take the magnet with you when you go. I dont think that any theif would be up to looking for that switch.

92BLKL98

This is a clever idea. To most of these theiving idiots it would go unnoticed, even in plain view.

92droptop

Before you do this....
I have heard of problems with the magnetic switches, namely the magnets falling off when driving over rough surfaces. This would become even more of a problem when you start hiding it behind a plastic dashboard. Just be careful of this, otherwise you're liable to be cruising one minute, and the next you've got no power

MikeS

That's the only reason I didn't go that route. I hadn't come up with what I thought was a safe/reliable place to put it where the magnet would stay. I didn't want to spend too much time figuring that out, so went with a regular switch. I suppose a horizontal surface might work ok though.

92BLKL98

This is quite true, Buuut, what if you install the switch inside your cigarette lighter recepticle, and a magnet in the removable lighter, and take the lighter with you when you go away from the car. Then the magnet wouldn't fall out. Radio Shack sells end magnetic switches that could work and are quite reliable. You just need to use a relay to control the systems you want to kill (ignition, fuel pump, ECU power). It would be effective.

TZFBird

Right on 92BLKL98.... that is pretty much what I was thinking except I was thinking that you just remove power to the cig lighter recepticel...and make it so that somehow when the lighter is in place, the car will start, but without it, it is useless. Except there is only one thing wrong with kill switches...when a car can't be stolen, what are they going to do next?


SMASH!!!!

92BLKL98

Yeah you're going to have to gut the receptacle. Most punks aren't going to do too much damage they just want a quick ride. I'd love to just roll the windows up tight lock the doors and gas 'em but I think they have laws against that. I heard of a guy years ago who wired the door handles for an electric shock. Illegal but neat. What's illegal, IMHO a sick bird.

loneroad

iTrader: (3)

Diiging

loneroad

iTrader: (3)

Digging up a old one here.

ive been thinking about making a hidden kill switch using a reed switch, like discussed above.

I want to kill the ign using the white wire from my msd 6al. white to ground = kill.

My first question is if im only grounding out the box, would i still need to run a relay.

I found a few places selling them on the net. Just to double check my thinking. I need a normally closed switch?

final question. could i wire a blinking led to the to the same switch without it feeding back to the box?

EFIhead

If you control an electrical component on the ground side, than you can just use a switch. The reason is there is (or shouldn't be) any measurable voltage after the last consumer on a circuit. when you put switches on the power side of a consumer(s) you create a small arc every time that switch is closed. As many know this wears out switches over the life a vehicle. So as long as that wire you described only a ground, just wire up a switch large enough to solder that wire to. If you want to be totally sure, take a voltmeter and put the leads on either end of that wire with the circuit energized, it should read 0v if it is just a ground.

6SIX6

iTrader: (35)

I like the idea of this for sure and was wondering what I would do in this situation as Im not useing the wihte wire for my MSD. I was wondering if i put a switch on the 12v switched wire ( red ) will it do the same thing as if there is no switch power it cant turn on or is this not a good idea??? let me know what you guys think. Thanks

RaGiN Z

your 6al requires a certain amount of amperage to operate, that switch needs to be able to handle it. I would run a relay so you don't have to worry about the switch being overloaded, or get a beefy switch.

6SIX6

iTrader: (35)

If I put the switch on the ground would I still need to worry about amperage still???

loneroad

iTrader: (3)

the diagram with the 6 al grounding the white wire with a toggle switch


http://static.summitracing.com/globa...0_frm28645.pdf

so im thinking i should be fine with a normally closed reed switch. (open with a magnet)...

even if someone tried stealing it, and burned the switch out by continuously cranking it, it would be better to ride home in a tow truck with the car.Than ride home in a cab without it