Race Car Tech Discuss anything related to road racing and auto X.

Kill Switch hook up

Old 12-21-03, 02:11 PM
  #1  
Rotary Enthusiast
5 Year Member
Thread Starter
 
specRX7_22's Avatar
 
Join Date: Nov 2002
Location: Eastern PA
Posts: 1,014
Likes: 0
Received 0 Likes on 0 Posts
Kill Switch hook up

Does anyone have any experiences with installing kill switches? How exactly is this done?
specRX7_22 is offline  
Old 12-21-03, 03:41 PM
  #2  
Banned. I got OWNED!!!
 
christaylor's Avatar
 
Join Date: Mar 2003
Location: Austin, Texas
Posts: 1,546
Likes: 0
Received 0 Likes on 0 Posts
The kill switch interrupts the power between the battery and everything else. It depends what kill switch you have whether or not it also disrupts the alternator.

To install it, you run the positive cable to the switch, then from the switch to the engine, etc. The two cheapies I got from Racer Wholesale had schematics with them on how to install them. If yours doesn't, I can see if I saved them and either get my scanner fixed or MSPAINT a version of it.

With that said, you want to get it as close to the battery as possible. Both of mine are mounted right in front of the windshield, one on the drivers side of the vent inlet, one right in the middle of that inlet. The coolest one I've seen was mounted inside the round vent inside the car, right next to the cage/door.
christaylor is offline  
Old 12-21-03, 04:49 PM
  #3  
Rotary Enthusiast
5 Year Member
Thread Starter
 
specRX7_22's Avatar
 
Join Date: Nov 2002
Location: Eastern PA
Posts: 1,014
Likes: 0
Received 0 Likes on 0 Posts
We will be transferring a kill switch from a totaled car to a new car, so we dont have any of the original schematics or paperwork. If you could get me a copy of yours that would be greatly appreciated! But dont worry about if your scanner is broken or cant find the papers.
specRX7_22 is offline  
Old 12-21-03, 06:11 PM
  #4  
Banned. I got OWNED!!!
 
christaylor's Avatar
 
Join Date: Mar 2003
Location: Austin, Texas
Posts: 1,546
Likes: 0
Received 0 Likes on 0 Posts
So then why not just take reference pics and use the same wires, etc.? Seems like that would be easier...

I can't find either, but lemme check after I finish reassembling this motor. I'm not sure I'm going to find it though. If you want, I can take pictures from one or both cars. One has the engine out of it at the moment, so it would be pretty easy to take pictures of stuff.
christaylor is offline  
Old 12-21-03, 08:35 PM
  #5  
Rotary Enthusiast
5 Year Member
Thread Starter
 
specRX7_22's Avatar
 
Join Date: Nov 2002
Location: Eastern PA
Posts: 1,014
Likes: 0
Received 0 Likes on 0 Posts
anything you can give would be helpful
specRX7_22 is offline  
Old 12-22-03, 12:14 PM
  #6  
Has been.. hangin' around
10 Year Member
 
Silkworm's Avatar
 
Join Date: Mar 2001
Location: Milpitas, CA
Posts: 2,618
Likes: 0
Received 0 Likes on 0 Posts
I have a 4 prong kill switch, 2 large studs, 2 small.

L1 - Battery
L2 - Starter, Alternator, Main Car power

S1 and 2 - Ignition power

Turn the switch, battery is isolated, the alternator would still power the car but ign power is cut so the coils will stop firing.

PaulC
Silkworm is offline  
Old 12-22-03, 06:38 PM
  #7  
Rotary Enthusiast
10 Year Member
 
Join Date: Apr 2001
Location: North Hollywood, Ca USA
Posts: 1,289
Likes: 0
Received 0 Likes on 0 Posts
Paul, has the setup I and most other racers use. the original paper work for the "4 prong" switch shows you to bleed the power from the alternater to ground through a large resistor. this works but can fail easily as the resistor takes a beating. just break the power to the coils or MSD box if equipped.
tims is offline  
Old 12-25-03, 05:39 PM
  #8  
Rotary Enthusiast
10 Year Member
 
rhinor61's Avatar
 
Join Date: Mar 2002
Location: California
Posts: 819
Likes: 0
Received 0 Likes on 0 Posts
Actually if you want to keep from burning up your alternator this is another way of doing it. I got my set up from IOPort Racing. I ran this set up on my PRO7.

Here is the schematic.


3 pole switch wiring diagram

You need a resistor to remove the stray voltage output from the alternator.

John
rhinor61 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
windom
Adaptronic Engine Mgmt - AUS
4
09-11-15 04:48 AM


Thread Tools
Search this Thread
Quick Reply: Kill Switch hook up


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: