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Re: Cut Off Switch UPDATE!!!!
[Re: Kiddart]
#999340
05/27/11 01:35 PM
05/27/11 01:35 PM
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Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
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Is this with the alternator unplugged? If so something in the wiring is acting like a capacitor, storing energy which takes a few seconds to be depleted when you shut the key off..
"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
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Re: Cut Off Switch UPDATE!!!!
[Re: sshemi]
#999342
05/28/11 10:47 AM
05/28/11 10:47 AM
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Joined: Mar 2005
Posts: 1,553
Michigan
Kiddart
OP
pro stock
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OP
pro stock
Joined: Mar 2005
Posts: 1,553
Michigan
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I have secured some 8awg wire and will work on this today. Since we are still getting rain and it's crappy in detroit I dont see a problem having this sorted out today. I will report back later today on status or for more help.  Raul I may call you later and take you up on your offer.
Thank you
Kiddart
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Re: Cut Off Switch UPDATE!!!!
[Re: sshemi]
#999343
05/28/11 10:55 AM
05/28/11 10:55 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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with a carb, when you cut the fuel pump off, it's got enough fuel in the bowls to idle for another 2-3 minutes. track guys probably won't like that too much, and wouldn't pass tech.
**Photobucket sucks**
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Re: Cut Off Switch UPDATE!!!!
[Re: 70Cuda383]
#999345
05/28/11 03:13 PM
05/28/11 03:13 PM
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Joined: Feb 2011
Posts: 1,454
Glendora Ca.
Just-a-dart
pro stock
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pro stock
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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Kiddart you are not alone with this problem a lot of people have trouble with this. 70cuda383 is giving you good info I just have a few things to add. When you run that new wire from the Alt. output to the battery side of the disco switch remember it will be Hot all the time,switch on or off. Route it so it's protected. Also remember to insulate or remove old wire to Alt. output. Have fun.
"Just a Bracket car dressed up like a streetcar"
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Re: Cut Off Switch UPDATE!!!!
[Re: sshemi]
#999346
05/28/11 04:46 PM
05/28/11 04:46 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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Quote:
yeah.. maybe a stock 318 will but not a racemotor.
I said any track guy with some cerials in the box will let it pass if you cut the neg.
must be one serious race motor! my 383 stroker that was making 535 lbs of torque would idle for several minutes once you cut off fuel. probably an honest 2-3 minutes.
why take the chance of a tech guy passing it when it isn't technically legal? the idea behind the kill switch, is that when you crash and the safety crew comes up behind your smoldering mess of what used to be a car, so they can rescue you, they want everything off for their own safety. kind of like a "lock out, tag out" type situation, so they want to kill battery power to everything, and they want the motor to stop spinning.
if Kiddart's got it wired now so that it runs for 2-3 seconds before dying, that would be better than cutting power to an electric fuel pump and letting the motor idle the bowls empty in 2-3 minutes.
I'm gonna guess that this is a street car and not an all out, massive hp motor. it might even be a "street 318" 
and yea...insulate EVERYTHING! use thick insulated wire to feed the power to the car up through the starter, and a thick insulated wire coming off the alternator. 1/2 or 5/8 heater hose makes for great wire insulation when you have to feed it around sharp edges or tight bends.
**Photobucket sucks**
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Re: Cut Off Switch UPDATE!!!!
[Re: 70Cuda383]
#999347
05/28/11 10:19 PM
05/28/11 10:19 PM
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Joined: Mar 2005
Posts: 1,553
Michigan
Kiddart
OP
pro stock
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OP
pro stock
Joined: Mar 2005
Posts: 1,553
Michigan
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For Startes its a Street Strip car that is barley leagal on the street. it was a 318 from the factory, Good guess. Big update!!! It took way longer than I ever expected I ran a temp wire from the alt to the positive side of the switch while disconnecting the original, the car would not start?? So I reconnected the original wire and oh for havens sake the car started.  With that comment said, I commenced to tracing the cut/hacked wire in thru the dash up around, down and over to its connection point, the light switch??? I have no idea if that was the original point of contact of the wire. After pulling half the dash and the dropping the column I was able to remove the wire from its point of origin. Now in the mean time I have every Tom, Dick and Harry coming over to see what’s wrong or what I am changing.  The wire that was in the car was cut and spliced 8 times, I still retain it if someone would like to see it. So I take the new wire run it in its final spot and go to start the car……….. Nothing!!!!! AHHHHHHHH!!!!!!  I am now ready to jump off my roof, I stop take a break and found that I didn’t put the wires back on the headlight switch the same way they came off?? Not sure what that was about. So after 5 hours of swearing and pulling miles of electrical tape off I now have a functioning cut off switch. And when you hit the switch the car stops as I expect it to, YESTERDAY!!! Very happy with the results.  Thanks for all the help and if any good came out of this my wife suggested I rewire the car with all brand new stuff. She feels it would better protect our investment. God I just love my wife Thanks fellas for all the guidance. Kiddart
Thank you
Kiddart
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Re: Cut Off Switch UPDATE!!!!
[Re: Kiddart]
#999348
05/29/11 12:03 PM
05/29/11 12:03 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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With 40 years of previous hacks and splices, your wife is a smart chica! You can do it the fast, easy, but expensive way--buy all new re-man'd harnesses at 1-2 grand. Or you can make them yourself. It's very easy to do, but will take some time. It'd be cheap too. At least you got the kill switch working correctly!!
**Photobucket sucks**
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Re: Cut Off Switch UPDATE!!!!
[Re: 70Cuda383]
#999349
05/29/11 02:18 PM
05/29/11 02:18 PM
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Joined: Aug 2004
Posts: 2,128
sweden
sshemi
top fuel
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top fuel
Joined: Aug 2004
Posts: 2,128
sweden
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Quote:
Quote:
yeah.. maybe a stock 318 will but not a racemotor.
I said any track guy with some cerials in the box will let it pass if you cut the neg.
must be one serious race motor! my 383 stroker that was making 535 lbs of torque would idle for several minutes once you cut off fuel. probably an honest 2-3 minutes.
why take the chance of a tech guy passing it when it isn't technically legal? the idea behind the kill switch, is that when you crash and the safety crew comes up behind your smoldering mess of what used to be a car, so they can rescue you, they want everything off for their own safety. kind of like a "lock out, tag out" type situation, so they want to kill battery power to everything, and they want the motor to stop spinning.
if Kiddart's got it wired now so that it runs for 2-3 seconds before dying, that would be better than cutting power to an electric fuel pump and letting the motor idle the bowls empty in 2-3 minutes.
I'm gonna guess that this is a street car and not an all out, massive hp motor. it might even be a "street 318"
and yea...insulate EVERYTHING! use thick insulated wire to feed the power to the car up through the starter, and a thick insulated wire coming off the alternator. 1/2 or 5/8 heater hose makes for great wire insulation when you have to feed it around sharp edges or tight bends.
I see your point here and i am not arguing with that its just that if you were allowed to cut the neg side ,there wouldnt be ANY problems.
Its just as safe, if not even safer, to cut the - side.
just a weird nhra rule.
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Re: Cut Off Switch UPDATE!!!!
[Re: sshemi]
#999351
05/29/11 11:14 PM
05/29/11 11:14 PM
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Joined: Jun 2010
Posts: 1,144
wellington ohio
68-scatpack-rt
In thin ice
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In thin ice
Joined: Jun 2010
Posts: 1,144
wellington ohio
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Quote:
Quote:
Quote:
yeah.. maybe a stock 318 will but not a racemotor.
I said any track guy with some cerials in the box will let it pass if you cut the neg.
must be one serious race motor! my 383 stroker that was making 535 lbs of torque would idle for several minutes once you cut off fuel. probably an honest 2-3 minutes.
why take the chance of a tech guy passing it when it isn't technically legal? the idea behind the kill switch, is that when you crash and the safety crew comes up behind your smoldering mess of what used to be a car, so they can rescue you, they want everything off for their own safety. kind of like a "lock out, tag out" type situation, so they want to kill battery power to everything, and they want the motor to stop spinning.
if Kiddart's got it wired now so that it runs for 2-3 seconds before dying, that would be better than cutting power to an electric fuel pump and letting the motor idle the bowls empty in 2-3 minutes.
I'm gonna guess that this is a street car and not an all out, massive hp motor. it might even be a "street 318"
and yea...insulate EVERYTHING! use thick insulated wire to feed the power to the car up through the starter, and a thick insulated wire coming off the alternator. 1/2 or 5/8 heater hose makes for great wire insulation when you have to feed it around sharp edges or tight bends.
I see your point here and i am not arguing with that its just that if you were allowed to cut the neg side ,there wouldnt be ANY problems.
Its just as safe, if not even safer, to cut the - side.
just a weird nhra rule.
breaking the negative battery cable will not stop the car from running. the alternator will still be providing power to the fuse block. same thing as just intercepting the positive cable. you need to "kill" the alternator and the battery to de-energize the electrical system. 
unions....the folks who brought you the weekend!
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Re: Cut Off Switch UPDATE!!!!
[Re: 68-scatpack-rt]
#999352
05/30/11 12:09 PM
05/30/11 12:09 PM
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Joined: Aug 2004
Posts: 2,128
sweden
sshemi
top fuel
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top fuel
Joined: Aug 2004
Posts: 2,128
sweden
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Quote:
Quote:
Quote:
Quote:
yeah.. maybe a stock 318 will but not a racemotor.
I said any track guy with some cerials in the box will let it pass if you cut the neg.
must be one serious race motor! my 383 stroker that was making 535 lbs of torque would idle for several minutes once you cut off fuel. probably an honest 2-3 minutes.
why take the chance of a tech guy passing it when it isn't technically legal? the idea behind the kill switch, is that when you crash and the safety crew comes up behind your smoldering mess of what used to be a car, so they can rescue you, they want everything off for their own safety. kind of like a "lock out, tag out" type situation, so they want to kill battery power to everything, and they want the motor to stop spinning.
if Kiddart's got it wired now so that it runs for 2-3 seconds before dying, that would be better than cutting power to an electric fuel pump and letting the motor idle the bowls empty in 2-3 minutes.
I'm gonna guess that this is a street car and not an all out, massive hp motor. it might even be a "street 318"
and yea...insulate EVERYTHING! use thick insulated wire to feed the power to the car up through the starter, and a thick insulated wire coming off the alternator. 1/2 or 5/8 heater hose makes for great wire insulation when you have to feed it around sharp edges or tight bends.
I see your point here and i am not arguing with that its just that if you were allowed to cut the neg side ,there wouldnt be ANY problems.
Its just as safe, if not even safer, to cut the - side.
just a weird nhra rule.
breaking the negative battery cable will not stop the car from running. the alternator will still be providing power to the fuse block. same thing as just intercepting the positive cable. you need to "kill" the alternator and the battery to de-energize the electrical system.
wrong. no negative means no circuit
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Re: Cut Off Switch UPDATE!!!!
[Re: sshemi]
#999353
05/30/11 02:50 PM
05/30/11 02:50 PM
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Joined: Feb 2011
Posts: 1,454
Glendora Ca.
Just-a-dart
pro stock
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pro stock
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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SShemi that would be true if it was running off the battery and had no altenator. The proplem he was having was the alt. powering the ignition. The neg. side of alt. is connected internally in the altenator disconnecting the battery neg. will not shut it down. Also the rules want the disco switch in the pos+ side of the circuit.
Kiddart in the future you might want to post ? like this on the race forum.
"Just a Bracket car dressed up like a streetcar"
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Re: Cut Off Switch UPDATE!!!!
[Re: sshemi]
#999354
05/30/11 03:29 PM
05/30/11 03:29 PM
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Joined: Feb 2003
Posts: 2,928
A tad North of Indy
Blown71X
super gas
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super gas
Joined: Feb 2003
Posts: 2,928
A tad North of Indy
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Quote:
wrong. no negative means no circuit
Wrong ! that just means you have taken the battery out of the equation..The Alternator is still active.
Go out and pop either cable off of your daily driver with it running and get back to me, tell me what happens 
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