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Battery disconnect switch??

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Old 06-19-2007, 08:27 AM
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That's what I am looking for. That is one of the spots that I was thinking about mounting it. Does it affect it in any way to have the handle bent like that? Do you have a pic of the outside showing the handle? Any tips before I start to make a hole?????
Old 06-19-2007, 09:17 AM
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Originally Posted by TN94Z
That's what I am looking for. That is one of the spots that I was thinking about mounting it. Does it affect it in any way to have the handle bent like that? Do you have a pic of the outside showing the handle? Any tips before I start to make a hole?????
Functionality-wise, the slight bend doesn't affect the operation whatsoever. However, I'm not sure if it's 100% legal.

For the hole, just mark the spot and start drilling. I used my cordless Black & Decker
Attached Thumbnails Battery disconnect switch??-img_0119.jpg  
Old 06-19-2007, 09:25 AM
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Does anyone know if it illegal if the handle is bent? I guess I could always fab up a longer piece that goes from the switch to the rod.
Old 06-19-2007, 03:38 PM
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what? killing the ground to the car is the exact same as removing the battery...it would kill the car...so why cant you do it?
Old 06-19-2007, 07:14 PM
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Good thread, does anyone have more pics of this on a trans am bumper. I've been contemplating doing this but I dont want to unless it looks good.
Old 06-19-2007, 07:32 PM
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Originally Posted by daniel6718
what? killing the ground to the car is the exact same as removing the battery...it would kill the car...so why cant you do it?
Because the alternator is still producing power So it could run without the battery hooked up at all. So you have to kill the alternator as well at the battery.
Old 06-19-2007, 07:35 PM
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Here ya go, no welding, just had to cut and rethread the rod to shorten it up.
Old 06-19-2007, 07:46 PM
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Thanks KP. That is the other way I was looking at doing it. That is where I want the handle coming out too.
Old 06-19-2007, 08:50 PM
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wow KP, thats looks really clean...almost looks like its supposed to be that way!
Old 06-20-2007, 12:55 AM
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that alternator cant power the car with no battery!!! im sayin take away the ground?

Last edited by daniel6718; 06-20-2007 at 02:04 AM.
Old 06-20-2007, 04:17 AM
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Originally Posted by daniel6718
that alternator cant power the car with no battery!!! im sayin take away the ground?

Go start your car and take the battery out it will keep running I promise.

Also the NHRA wants it done this was so your SOL
Old 06-20-2007, 09:21 AM
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Originally Posted by Kuhnstyle86
Go start your car and take the battery out it will keep running I promise.

Also the NHRA wants it done this was so your SOL
Old 06-20-2007, 05:06 PM
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KP>>>>>>> How far does your handle stick out when off(pushed in)? It looks like if I trim any off of the handle then it might hit the rear bumper cover when I try to push it off. How far does the handle stick out when the switch is in the on position? Mine seems to stick out a pretty good ways when I have it pulled out.
Old 06-21-2007, 04:57 AM
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thats what i was wondering if it was bc of nhra...now you go do me a favor...go outside...start your car...get and 8mm or 1/2 whicher you have top or side posts...then disconnect the ground wire...and listen to your car die...then come back and stop talking about the alternator...has nothing to do with it...the ground will ELIMINATE the circuit...there will be nowhere for anything on the car to be grounded...also removing the battery will kill your car for this reason...you can unhoook the power wire from the batt but not the ground
i simply asked why we couldent do this, you can rear mount a battery and ground it in the back, wouldent have to run alternator wire all thw way back there...it makes more sense to me
Old 06-21-2007, 07:22 AM
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Per 2007 NHRA rulebook:


"Mandatory wen battery is relocated, or as outlined in Class Requirements. An electrical power cutoff switch (only one) must be installed on the rearmost part of each vehicle and be easily accessible from outside the car body. This cutoff switch must be connected to the positive side of the electrical system and must stop all electrical functions including magneto ignition. The off postition must be clearly indicated with the word "OFF". If switch is "push/pull" type, "push" must be the action for shutting off the electrical system, "pull" to turn it on. Any rods or cables used to activate the switch must be a minimum 1/8-inch diameter. Plastic or keyed switches prohibited. Switches and/or controls must be located behind rear wheels on rear-engine dragsters.

And it even has positive in bold in the book. I think killing the ground on a 4th gen camaro will make the car quit running. I think with all the electronics on the car is why. I think older cars would not die by just disconnecting the gound. It does not really matter though whether it kills the battery or not because even if it does it is against the rules not to use it on the positive side. Tech at all the local tracks I have been to do not even tech my car so it would not matter if I even had a switch but if you want to be able to pass tech everywhere if you had too then thats the way it has to be done.
Old 06-21-2007, 11:34 AM
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Originally Posted by TN94Z
KP>>>>>>> How far does your handle stick out when off(pushed in)? It looks like if I trim any off of the handle then it might hit the rear bumper cover when I try to push it off. How far does the handle stick out when the switch is in the on position? Mine seems to stick out a pretty good ways when I have it pulled out.
It sticks out about 1" when off and about 4" when on, it has a long throw. I was going to attch the rod lower on the lever for a shorter throw but never got around to it. I had to take like 6" off the rod, maybe they give shorter ones with the kit now..
Old 06-22-2007, 02:58 PM
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i have a good picture of mine ill post when i get home,

its in the spare tire well without cuting any factory panels and it goes out fo the taillight so u dont have to cut ur bumper
Old 06-22-2007, 04:51 PM
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Heres Mine..... Just Like KP.

I got rid of the red BMR Battery Tray because its not NHRA or IHRA legal...
I went with the Moroso battery Box.....







Kyle
Old 06-22-2007, 05:45 PM
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here is where i used to have mine
Attached Thumbnails Battery disconnect switch??-battery.jpg   Battery disconnect switch??-dsc00174.jpg  
Old 06-22-2007, 11:23 PM
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i used a regular kil switch(not rod type) and drilled a hole in the handle and ran some allthread with nut on each side and made it a push pull style for alot less money, never reallly looked to see if it was nhra legal, but a friend that bracket races at alot of nhra tracks has the samesetup on his car and never had any issues......what everyone think about this???????


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