push button starter

Hi,

Not ure which forum this was supposed to go in, hope this is the right one.     I have a friend with a 99 civic dx (sedan if it matters) He wants to install a push button starter on his car. I've installed kill switches b4, but never a push button starter. Can't be that hard. My question is, do I need to use a momentary push button, or a button that turns acc. on when pressed, and off when pressed again? The reason I'm asking is b/c I'm not sure if the wires that will be used on the switch just need to touch each other to start the car, or need to stay connected to keep the car running. I dont' want to burn up the starter either. Any help is appreciated.

thanx,

Daniel

You should use a momentary push button that the starter motor is engaged as long as the person holds the botton. 

You should also verify that the botton has a high current capability, as the start motor will draw lots of current and if not rated high enough it will "fry" the switch. 

Last recommendation is to use the 12 volt ignition wire to feed the switches input side.  This will allow the vehicle to crank only when the key is in the ignition and turned on, as well as serve as a fail safe in case that button gets stuck....you'll be able to just turn the key back off to stop the starter motor.

Oh if you do find a switch that you want to use, but its not high current enough we can show you how to wire up a relay to make it work....

hey thanx for the info...it really helps.

My original plan was to install a kill switch on his car for him. Thats the easy part. Then he asked if I could install a push button starter. So I thought, if I install a push button starter, what would he have to do to turn the car off. I figured I could use the push button to start the car and the kill switch to turn the car off. Then he took it one step further and asked if I could install both the push button starter and the kill switch and still allow him to use the key to turn the car on and off.

So basically, he wants to be able to use the key to turn the car on and off, or using the push button to start the car and the kill switch to turn it off. Can this be done?

trying to wire in something other than the key to turn it off will kill a lot of time. Why can't he just turn the key on and use the momentary button to start it? This way everything stays original.  Use a relay and any momentary switch you want.

#30  +input from hot line of ign switch.

#87 output to starter wire

#85 + ign. input from ign. switch 

#86 to one terminal of momentary switch.

Other sw. terminal connect to a good ground.

This will crank the car only  with the key on.

Key switch will still function normally if the "button" happens to break.