Kill switch which wire?

[germando]

So I have converted the ash tray into a max max style kill switch pic below. Just trying to decide which wire would be the best. Cool wire or starter would work or even the neutral switch. Any of them better than the others? The switch setup is 3 dpdt switched and a push button disguised as the lighter

G

 

[Ricko1966]

Oh no,not again!!!!!

 

[sidschev]

clever

 

[Ricko1966]

Type kill switch into the search bar. Magnifying glass top right of the page, tap it when search opens type kill switch you will get over 400 hits,plenty to read.

 

[germando]

i know, I’ve read most of the other posts about these. I guess my real question is will a simple 20 amp switch hold up to the load that is supplied to the starter at crank? If not then I will just go with the neutral safety switch line. But lol I just answered my own question, since I know the size of the wire to the starter from the ignition. So I will just have to decide if I want the engine to crank and not start or just not crank. So just ignore my post here lol. I am getting old

G

 

[idahovette]

Join the club @germando .....lol

 

[Radiohead]

i know, I’ve read most of the other posts about these. I guess my real question is will a simple 20 amp switch hold up to the load that is supplied to the starter at crank? If not then I will just go with the neutral safety switch line. But lol I just answered my own question, since I know the size of the wire to the starter from the ignition. So I will just have to decide if I want the engine to crank and not start or just not crank. So just ignore my post here lol. I am getting old

G

Have a switch control a relay with 30 amp contacts. Problem diverted

 

[Ricko1966]

The starter solenoid wire sees very little amperage,the solenoid is a relay that switches the high amperage starter.

 

[Radiohead]

The starter solenoid wire sees very little amperage,the solenoid is a relay that switches the high amperage starter.

That works for an automatic. But the OP didn't specify what transmission he has.

I would rather disable the coil to keep it from starting

 

[Ricko1966]

That works for an automatic. But the OP didn't specify what transmission he has.

I would rather disable the coil to keep it from starting

It works for either,but if anything I'd want to interrupt fuel. It start runs dies 10 feet away and now it attracts attention. Yes it is possible with a mechanical pump we've discussed all of this. Best bet imho is an instant on alarm,leave the door unlocked,no lights no stickers,no warning. Ah! a sucker, but as soon as the door opens whoop,whoop,whoop. No broke window,no shattered column,because that's what's going to happen first,before they figure out the truck won't start.

 

[Ricko1966]

I'm not a thief but disable the starter,and the coil I can still have that truck started in under a minute

 

[HotWheelsBurban]

I'm not a thief but disable the starter,and the coil I can still have that truck started in under a minute

How?? Inquiring minds want to know....

 

[Ricko1966]

How?? Inquiring minds want to know....

Not info I'm willing to publish,once it's on the internet anyone has access,forever. But any good car thief would know as would anyone who's done some theft recoveries.

 

[Lowered87]

Anti-Theft Relay Kit

Anti-Theft Relay Kit

americanautowire.com

Part Number: 500239 $29

This relay kit disables the starter cranking circuit until a predetermined switch is activated. Attempts to start the car without activating the switch will sound the horn or potentially activate an item of the installer’s choice.

If you are able to build it yourself, go to autowrecker for a relay and some wiring and make your own for $1.

And if you want to be really covert use a non-conventional switch like one that activates when you put a magnet in a certain spot. There are many crazy switches available from different industries.

The point is the thief tries once, the horn starts to go off and that will likely make them run.

If you are really good at wiring, have a sequence of buttons and relays that is impossible to figure out as well you can add an inline fuel valve that closes.

 

[Grit dog]

It works for either,but if anything I'd want to interrupt fuel. It start runs dies 10 feet away and now it attracts attention. Yes it is possible with a mechanical pump we've discussed all of this. Best bet imho is an instant on alarm,leave the door unlocked,no lights no stickers,no warning. Ah! a sucker, but as soon as the door opens whoop,whoop,whoop. No broke window,no shattered column,because that's what's going to happen first,before they figure out the truck won't start.

^What he said!
Haven’t done the alarm but totally subscribe to the plan of starts, runs, dies. Crank til the battery is dead and then leave it because it’s attracting attention hopefully in the middle of the road.
Easy with our ‘86 with electric fuel pump (aftermarket system).
Little more of a challenge with a mechanical pump engine. Maybe consider an economical electric fuel shutoff solenoid hid underneath behind the tank switchover valve cover. If it’s dual tank.
My hidden switch is different. Considered the cig lighter trick but it gets used for charging phones.
I tested the no fuel theory. The Edelbrock on the truck will start and run long enough to idle it for a bit and drive a couple hundred yards. Sitting idling it will run for almost a minute.
My goal is if it gets boosted somewhere in public (in town here, from typical places like a parking lot), it’ll run long enough to get out into a main road or at least down the street. And then it’ll just crank with no fuel supply from either tank.
If you were going for the most simple, I’d intercept the neutral safety switch wire. That’s the least hackery of wiring. Except that’s a no crank so immediate knowledge by a thief that it has a kill switch.
IMO it’s as much about confusing the theif for a bit as it is scaring them off (alarm).