how to wire master disconnect?

[dlampe]

I don't know what a diode does or what it is. Also, I do have EFI so what are my concerns?

http://store.summitracing.com/partde...5&autoview=sku

Wouldn't this solve my problems if I used 2 toggles?

[vector1]

Originally Posted by dlampe

I don't know what a diode does or what it is. Also, I do have EFI so what are my concerns?

http://store.summitracing.com/partde...5&autoview=sku

Wouldn't this solve my problems if I used 2 toggles?

i had to reroute some wires away from rfi sources, don't mix efi stuff with other power sources would be my advice.

[vettestr]

Dean,
I think I know the answers too these ?'s but why guess. What are you trying to do exactly, why are you installing this disconnect and do you care if it meets specific Race sanction rules?

A diode is an electronic device that is a 1 way valve, it only lets current flow in 1 direction. If you put it on the wire from the alternator it stops them funny electrons from swinging both ways. It stops current flow from feeding back and keeping our engine running on the alt. even though the battery was turned off. a 3 dollar item.

Some electronic fuel injections require a battery source to keep their memory stored or some info that the need remember fuel maps and so on. Most systems have ability to remember things without a battery but do need a battery supply to run.

Some sanctioning bodies require a mechanical switch and will not allow electronic or electric battery disconnect switches. (if you wrecked and an electrical fire was starting will the electric disconnect sw still work ?) A mechanical disconnect must be mounted in an exact location so track workers know where to look and how to turn everything off.

Will the Painless Sw. you listed work to stop battery flow .... YEP , but not sure about other questions I asked. Jeff C

[dlampe]

Thanks a lot Jeff. That helps. I will not be running at any type of sanctioned event, just open track, Shelby events and other "fun" days. I'm just trying to be as safe as I can and I couldn't come up with a way to wire the dual mechanical switches.

I have the main battery wire, the alt. wire, the EFI main power wire, and the main power wire to the dash/fuse box. I have 2 mechanical switches in series. How do I make this work? If it goes from battery to switch, switch to switch, then switch to solenoid where the EFI and Dash power connect, where does the alt wire go? Where the battery connects to the first switch?

I realize this is confusing but don't give up on me yet. I'm trying to follow along.

[vettestr]

OK....
If you simply want a master battery disconnect switch the one you listed from Summit will work fine. Look at their PDF file on the link you included to see how easy to install.

There are many ways to skin a cat and just as many ways to wire your car. All the talk about the alt. is because some will keep running when the key is turned off. If this is not happening and/or reason for the battery disconnect we can move on. You are not trying to solve any issues or comply with some track rules and everything is working so again life is good.

All you want is ability to remove battery from system as safety and a convenience thing, right? If you buy the remote sw. from Summit here is how to install. Remove ground cable from battery - this is to kill everything so you can work on it safely. Remove battery cable from battery side at the starter solenoid and place on NEW DEVICE (voltage in lug). Install a new (high quality) battery cable from NEW DEVICE on the other lug and place other end on Starter Solenoid (this is where you removed the cable from moments ago). The kit shows a toggle on/off switch that comes with the kit I think, mount the switch where you want and run wires as shown in PDF. You should be done after putting Negative cable back on and testing everything.

Other things can be added or removed from the circuit but this is the BASIC install and
SHOULD remove power to everything if wired like I think. You could place the NEW DEVICE right at the battery if you need to because it is a remote controlled device. Any more questions give me a call.
Jeff C 602 402 8504