Thinking of using one of these for my kill switch:

http://cgi.ebay.com/ROUND-KEY-ELECTR...item3a4ebd9dea

I'll be connecting it to the fuel pump. Will it handle the current though? Does anyone have any experience with the structural integrity of locks like this?

 

I think that is a really good idea actually. As long as the circuit you are isolating doesnt have high amperage.

 

It does look like a good idea.. Use relays and fuses i guess

 

Looks like a totally legite idea.
I would.definitely try it out, its only 6 bucks

Matter fact it is a kill switch. Only difference is that this one has an actual physical lock mechanism

I think i will be buying this

 

If they rip it out cant they just jump the wires together?

<Not good with electrical.

 

I want to get one. Never done electrical work on my car though.

 

Good question

 

only problem is where would you mount it.

 

whether its a lock with a key, or a regular old switch, it doesn't really matter. a potential thief only needs to bridge the 2 wires behind it, and the killswitch will be bypassed.

 

This is way less obvious than a switch methinks. Who would figure this for a killswitch?

 

While this is correct, the switch can be effective if it is mounted in a good location, for example on my 96 ek I would place it on the flat corner next to the climate control and if that bezel is bolted back in corrected with the oem hardware it would be quite difficult to get behind it.


Just for the record, I have done 12v for a living for the last 10 years.

 

actually functional, really kool idea, you can get creative in finding a place to mount this

 

One more thing to consider if you are doing a killswitch is that if you are or find a capable installer you can use relays to shut down whatever circuit you want by switches you already have in your car to energize the relays. Like you can setup a starter kill that is based off pressing the brake pedal and pulling the e brake or something. The options are almost limitless.

 

The best set up i can think of would be connect it to the grounds of the injector wires inside the loom of the harness or to the fuel pump.

 

I'm buying that crap..lol. looks good.

 

if a thief has any reason to belief this lock type switch could be in relation to a bypass of sorts, then i'm sure he/she wouldn't hesitate to waste all of 10 seconds to break the plastic bezel and gain access to the wires.

definitely agree with this ^. you should protect your car by implementing many layers of security. making a kill switch is just one way. you can do this by using a single relay and/or switch to trigger one thing (ex. fuel kill), or multiple relays for killing many things (ecu, fuel, and ign. power), or use relays in a series where multiple relays need to be active in order for a single thing to work (ex. starter motor). it's going to be nearly impossible for a thief to either figure out which combo of things need to be activated, or figure out how to bypass the duo/trio of relays. (which you're obviously going to hide and make as inaccesible as best you possibly can). couple that with a car alarm and 2 hidden piezo sirens and you'll be good to go lol.

here is an example of how you might use 3 triggers, and 3 relays, to send power to a 4th relay. This in turn allows the starter to spin. there are many ways you could go about doing this, this is just one of them.



the idea behind this is that if any 1 or more of the relays isn't triggered, then the starter will not engage. yes i realize this starter kill could still be defeated, but thats true for many things you might do to your car to protect it. like i said before, the idea is to have layers of security.

 

Bummppzzz.....

 

mmmm good idea i might buy that switch

 

Is that one of those locks you can jam a bic pen into and turn it?

 

A simple and efficient form of a kill switch IMO and it works great:

Take a handfull (6 or so) of simple on/off switches and wire ALL of them in series to the 12v wire on the fuel pump. Place them in inconspicuous places through out the car, hide some and leave one or two out in the open. They will act as a combination lock to your fuel pump. Before you get out of the car flip a few and chances are it would take someone all night to figure it out. Obviously this would't stop someone from jumping 12v from say the cigarette lighter (which is the most accessable power source) to the fuel pump but a kill switch on the ignition would. I have switches hidden all over my CRX and have let a MECP certified installer (with 20 years experiance with car alarms) in the car and he couldn't crack it.

Ultimately, layers are the key to keeping our cars safe from ********. There's planty of stupid little things you can do to protect your car, like tomorrow i'm going to a local yard and getting some rear door handles from an EK sedan and painting them and putting them in my car eliminating the key holes.

 

Ummm... not to burst your bubble, because this is a great idea, but locks on big freezers and mini fridges use the same key.

 

It would be really cool to use the key hole to the glove compartment as a kill switch, who would think to check that?

 

good idea, but easy to break into with a paper clip

i have those locks on my computer, and lost my key.

i just took a paper clip, bent it into a circle and with my knife was able to unlock it in about 30 seconds.

however its still a good idea, epecially if you hide it somewhere

 

So for his question, will it work with the fuel pump or is that to much amperage?

 

I looked it up myself already. It's only a 10A switch, and for the killswitch I would need a 20A. You can still use this for one not connected to the fuel pump that only uses 10A though.