I have my kill switch on my race car wired up, but while having a conversation with a guy who was very familiar with wiring, he mentioned that i need to run relays. The conversation got cut short and i am now left wondering what kind, how many, and were i need relays.

This is how i have my kill switch wired as it is the only true way to kill all the places that get power. The test the car must past is as fallows

1.) car is start up
2.) kill switch is turned off (car must die)
3.) tech inspector then probs with his volt meter looking for power

Question, were if anything do i need a relay?


This is my switch panel. I am drawing power from the kill switch.
question, is it ok to wire the switchs like this? Were do i need relays?


Also if there are different sized relays? what should go were? and were can i buy them?

thanks for the help!

 

first off we always run the kill switch on the ground side....thats just how we do it, but show me a reason not too. first the reason to use a relay is to control a large current source with a small one...i can run a tiny little switch to activate a relay that controls a high draw motor for instance....plus its safe so you don't have high current and large wires running all over the place...your picture doesn't make sense, why would you want a relay on any of that...you can get the regular 30amp automotive relays just about anywhere.....a ford starter solenoid is basically a relay and makes for easy understanding, do some search on it or just relays in general

but relays have nothing to do with the tech situation you explained

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by new2novas &raquo;</TD></TR><TR><TD CLASS="quote">first off we always run the kill switch on the ground side....thats just how we do it, but show me a reason not too. first the reason to use a relay is to control a large current source with a small one...i can run a tiny little switch to activate a relay that controls a high draw motor for instance....plus its safe so you don't have high current and large wires running all over the place...your picture doesn't make sense, why would you want a relay on any of that...you can get the regular 30amp automotive relays just about anywhere.....a ford starter solenoid is basically a relay and makes for easy understanding, do some search on it or just relays in general

but relays have nothing to do with the tech situation you explained</TD></TR></TABLE>

The tech situation i explained was to illustrate why i have to run the kill switch this way. This is what they do at NASA to make sure your kill switch works, (as they define work).

I understand the basic concept of a relay, and the fact that it will allow me to run a tiny little switch with a large current source.

Why would i want a relay? Because i am running the kill switch and my other power switches with a lot of power/current/whatever.

I use NONE of the factory harness for powering ANY of these. It is all wiring i have done, or will do.

Please don't debate with me about how to wire a kill switch. This is the way the group i race with wants it done so that is the way i am doing it.

 

....If you know how to use a relay then you wouldn't have asked the question... i wouldn't take the time to write that if i wasn't trying to help...hows this answer to the original question since you don't like my explanation

NOT ON THE FIRST PICTURE, JUST FOR THE FAN i don't know what aim is, then YES, then WHERE THEY'RE NEEDED, then AT STORES

 

double post....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by new2novas &raquo;</TD></TR><TR><TD CLASS="quote"> ....If you know how to use a relay then you wouldn't have asked the question... i wouldn't take the time to write that if i wasn't trying to help...hows this answer to the original question since you don't like my explanation

NOT ON THE FIRST PICTURE, JUST FOR THE FAN i don't know what aim is, then YES, then WHERE THEY'RE NEEDED, then AT STORES </TD></TR></TABLE>

Wait i never said i knew how to use a relay. Please read what i wrote more carefully.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slammed_93_hatch &raquo;</TD></TR><TR><TD CLASS="quote">
I understand the basic concept of a relay, and the fact that it will allow me to run a tiny little switch with a large current source.
</TD></TR></TABLE>

Again i never said i knew how to use one.

Does it really matter what the switches are for? Bottom line they are powering something, on the same power level of a fan.

You seem to have some knowledge on the subject but the way you compose your answer makes it next to impossible to comprehend.

I got a very clear and simple answer via PM though. thanks

 

I don't race.. or own a race car..

but if i did.. this is how i would wire things...



using the - kill instead of your + kill..

and then just repeating the blue boxed area for each device...