wiring issues

[adgators99]

Allright, here's the story short......

I ran a wire through the firewall for an electric supercharger (actually two blowers that run after the filter and then to the throttle body) I hooked up the positives to the battery with a fuse inbetween, the wire ran into the car was for the negative to toggle. I bought a toggle switch that had three connections power, acc, ground. so I hooked the wire coming through the firewall to the power, the acc to the car stereo acc, and the ground to a ground point. now the switch opperates the radio and tnot the blowers! I put everything back to normal and the radio does not work hooked up normal, so I had to rewire the switch to control the radio just to get the radio to work again.

question is.....did anyone ever do this and is there another solution. if not it's still pretty cool, because now I can listen to the radio without haveing the key or the car turned on. all I have to do is flick the toggle. I may have to just get another toggle switch and start over wiring for the blowers.

 

[DarthBulk]

You should really use that toggle switch to switch a relay, not to directly switch something like a blower motor. That will put high current through your switch, which is a bad thing If you really want to do that, here is how you do it. Simply connect the one wire (negative) that is coming through your firewall to the "power" terminal on your toggle switch. Then connect a new wire from the "Ground" terminal to a good ground near the switch. Don't connect anything to the "Acc" terminal. This will make your switch simply break the connection between your blower and ground. HOWEVER, be aware that the ENTIRE current that your blower draws will now be flowing through that toggle switch! I would much rather see you connect that toggle switch to a relay, and let the relay switch the high current. The is the RIGHT way to do it. PM me and I can tell you how to do that.

I may be wrong about which terminals are actually switched in my above description, depending on the type of toggle switch you have. You might want to check, with a DMM, which terminals are actually connected together when the switch is "on". Those are the two that you need to use, connecting one to your wire from the blowers and the other one to ground.

 

[boosted galant]

You should really use that toggle switch to switch a relay, not to directly switch something like a blower motor. That will put high current through your switch, which is a bad thing If you really want to do that, here is how you do it. Simply connect the one wire (negative) that is coming through your firewall to the "power" terminal on your toggle switch. Then connect a new wire from the "Ground" terminal to a good ground near the switch. Don't connect anything to the "Acc" terminal. This will make your switch simply break the connection between your blower and ground. HOWEVER, be aware that the ENTIRE current that your blower draws will now be flowing through that toggle switch! I would much rather see you connect that toggle switch to a relay, and let the relay switch the high current. The is the RIGHT way to do it.

wrong. the acc and power are the switched ones. the "ground" is simply an optional ground for the light that lights in the switch when you turn it on which in your case using a switched ground would require you to connect it to a positive battery source. connect the blowers to the acc terminal and a good ground to the power terminal and if you wish, battery power to the ground terminal. check how many amps the blowers draw together and if it exceeds the rating of the switch get a better switch or use a relay

 

[1993eclipseGS]

Does it really give a horsepower gain

 

[Defiant]

No. But the idea sells better than the truth.

 

[boosted galant]

they worked great at ventilating the bilge of the boat i used to work on, but as far as adding power to a cars engine, i never heard a good thing about them

 

[DarthBulk]

wrong. the acc and power are the switched ones. the "ground" is simply an optional ground for the light that lights in the switch when you turn it on which in your case using a switched ground would require you to connect it to a positive battery source. connect the blowers to the acc terminal and a good ground to the power terminal and if you wish, battery power to the ground terminal. check how many amps the blowers draw together and if it exceeds the rating of the switch get a better switch or use a relay

Maybe you missed the last part of my post

I may be wrong about which terminals are actually switched in my above description, depending on the type of toggle switch you have. You might want to check, with a DMM, which terminals are actually connected together when the switch is "on". Those are the two that you need to use, connecting one to your wire from the blowers and the other one to ground.

I'm used to looking at the circuit diagrams, because labels like "Acc" mean nothing to me Anyway, I think he has a handle on how to do it now.