z06champ

2007 Z06-- Kill Switch Installation

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I am looking for any learnings I can get regarding installation of a Kill Switch into a 2007 Corvette Z06. We have built out a 2007 Z06 for racing in NASA and SCCA and when we installed the Kill Switch into the car, we seem to have the computer going crazy with the kill switch and turning the lights on and off while driving and sending message displays indicating Service the Charging System, Service ABS, High Voltage on Battery and then the computer resets and clears the messages and then starts again. Anyone have any recommendations or experience with installling a Kill Switch in the 2007 Z06? Thanks in advance for any advice or insight you may share?

L98Terror

You know this guy Tony had the same problem down at Road Atlanta this weekend.

z06champ

Hey--This is Tony from RA---Hope all is well with your trip back--Tony

davidfarmer

what kind of switch are you using, at simple on-off, or one that has the separate alternator circuit????

L98Terror

I figured as much, I was being funny. Made it back at 11 this morning and was at work for 1

BTW it was nice meeting you

z06champ

We installed a simple two post switch, but I think we need to put a 4 post switch in----thanks and I welcome any feedback.

z06champ

It was great meeting you also. You looked great on the track---plan to come back this summer when we get some good track conditions. You car looks great and I am anxious to see how fast it can turn the dry track conditions. Glad you got home safely after a long day on the track. Best wishes and keep in touch. Tony

cagedruss

Need the 4 post switch for alt current. We just did a C6 and it was pretty straight forward. Good Luck!

fatbillybob

You need a 6 post switch Not a 4 not a 2. You need to kill the battery and the alternator. That's why you get the other messages because your alternator is running the car when you kill the switch. You need to be wired soemthing like this. http://spece30.com/images/fbfiles/im...illswitch6.JPG

After you get your switch I can send you pics of exact wiring to the alternator on my C5Z. You need to set it up to kill bat and kill alt so when flipped the engine dies or you will not be SCCA or NASA legal

fatbillybob

http://www.pegasusautoracing.com/pro...asp?RecID=1464


This is exactly what you want.

z06champ

Thanks for the information. We had it killing the car when we turned it off, but when its on and we are racing, the messages and the computer are resetting messages and turning lights on an off-----so trying a 6 post will be a good point-----thanks again for the information and help. T

davidfarmer

I haven't done a C6Z, but I always use a 2 post, and simply move the alternator wire to the "battery" side of the switch, instead of the "engine" side of the switch. This leaves you with a single hot wire going to the alternator all of the time, but otherwise works perfectly.

I'm thinking, as said, the inconsistent voltages are being caused by the switch you are using, but whether it's the switch's fault, or the wiring setup, is hard to tell here. You must be having spikes/dips while the engine is running??!!

fatbillybob

I'm kinda dumb with electronics. Do you have a skematic of how you wire the two post switch. I was always told use the rediculously expensive 6 post and I'd like to learn how to save a few bucks.

Thanks!

davidfarmer

I haven't don't one in a while, basically the big wire that goes from the alternator back to the main hot circuit needs to be removed, and re-attached to the "hot" side of the switch. It normally allows the alternator to keep the engine running if you cut the power, but by moving it you eliminate that. The easiest way is to leave the OEM alternator wire in place (tape it securely), and run a new hot wire from the alternator back to the hot side of your switch. It's always worked for me, and I use the $6 switches from WalMart.

WNeal

Is it possible for a C6 Corvette to still run without a battery and alternator?

davidfarmer

no, I don't think so. If you cut the power and it's still running, you've got a leak somewhere. You have to have the PCM, fuel pump, coils charge as a minimum to keep the car running........maybe you added the flux capacitor option??

WNeal

WE had a small wire running from the + battery to the ECM fuse in the engine area to maintain the Keep Alive Memory.

Without that, everything shuts down but then I have to drive it for 30 minutes to reset the computer.

With it, the kill switch then did not shut down the engine

davidfarmer

amazingly, that small circuit in the ECM must back feed just enough power into the rest of the system.

just use the kill switch for emergencies

WNeal

Thats were we are with it now. It works great and will meet NASA rules.
Its just that I will have to drive the car for 30 minutes on some back road everytime it is teched and tested by NASA

We tried a KAM 9 volt battery through the cigarrette lighter and that did not work. It must work on some cars because they sell them for that express purpose.

WNeal

This is the article that speaks about the KAM saver device

http://www.aa1car.com/library/batter...t_problems.htm