Notices
Autocross/Road SCCA Solo II, SCCA Club Racing, Redline Track Events, Speed Trial, Speed Ventures, Grand-Am Cup, JGTC, Procar Australia

How to properly wire in a master cut-off switch?

Thread Tools
 
Search this Thread
 
Old 09-19-2010, 06:53 AM
  #1  
nkohler
New Member
Thread Starter
iTrader: (16)
 
nkohler's Avatar
 
Join Date: Oct 2004
Location: Columbia, MO
Posts: 565
Likes: 0
Received 5 Likes on 5 Posts
Default How to properly wire in a master cut-off switch?

I have been searching and finding a lot of threads on other cars, but no specifically the Z. For the track guys out there, how have you done yours?
Old 09-19-2010, 02:44 PM
  #2  
laze1
New Member
iTrader: (17)
 
laze1's Avatar
 
Join Date: Jul 2007
Location: Atlanta GA
Posts: 1,611
Likes: 0
Received 1 Like on 1 Post
Default

I will take some pics next weekend....mine looks pretty simpler..it is spliced inline with the battery positive cable....mounted on the dash on the passenger side...
Old 09-19-2010, 06:18 PM
  #3  
nkohler
New Member
Thread Starter
iTrader: (16)
 
nkohler's Avatar
 
Join Date: Oct 2004
Location: Columbia, MO
Posts: 565
Likes: 0
Received 5 Likes on 5 Posts
Default

Thanks Laze,

Lots of people talking about if you just cut the battery it does damage to your alternator. Plus I didnt know if the Z33 had more electrical crap that I didnt know about.

If anyone else has done this I would appreciate the input!
Old 09-20-2010, 03:05 AM
  #4  
laze1
New Member
iTrader: (17)
 
laze1's Avatar
 
Join Date: Jul 2007
Location: Atlanta GA
Posts: 1,611
Likes: 0
Received 1 Like on 1 Post
Default

This car was built by the PO 2-3 years ago, but I am not aware of any Alternator problems at all.

Mine is wired this way:
Battery Positive terminal wire is routed thru a hole in the bulkhead created for this purpose into the passenger compartment>
that wire is connected to a standard cut-off switch, then routed back to the engine compartment thru a hole created for this purpose>

then the +wire runs it normal/factory path...Appears to be pretty straight forward

Note: My car is still using the factory Key switch

I plan to remove the key over the winter, and this may cause some significant rewiring...as I am sure there are several interlocks/theft prevention devices to work around.


Originally Posted by nkohler
Thanks Laze,

Lots of people talking about if you just cut the battery it does damage to your alternator. Plus I didnt know if the Z33 had more electrical crap that I didnt know about.

If anyone else has done this I would appreciate the input!
Old 09-20-2010, 03:53 AM
  #5  
JasonZ-YA
350Z-holic
iTrader: (60)
 
JasonZ-YA's Avatar
 
Join Date: Jan 2006
Location: San Antonio/I miss DFW, TX
Posts: 11,204
Likes: 0
Received 28 Likes on 19 Posts
Default

Originally Posted by laze1
I will take some pics next weekend....mine looks pretty simpler..it is spliced inline with the battery positive cable....mounted on the dash on the passenger side...
maybe i can help with your pic laze?

Taken from this thread: - noticed it on post 5.
https://my350z.com/forum/8653962-post2.html

-J
Old 09-20-2010, 03:56 AM
  #6  
JasonZ-YA
350Z-holic
iTrader: (60)
 
JasonZ-YA's Avatar
 
Join Date: Jan 2006
Location: San Antonio/I miss DFW, TX
Posts: 11,204
Likes: 0
Received 28 Likes on 19 Posts
Default

Where are you guys buying the master cut off switches???

any perks to the ones you have?

-J
Old 09-20-2010, 06:48 AM
  #7  
ThreeFiveZero Z
Registered User
iTrader: (23)
 
ThreeFiveZero Z's Avatar
 
Join Date: Sep 2005
Location: Fort Lauderdale, FL
Posts: 705
Likes: 0
Received 1 Like on 1 Post
Default

Any race parts supplier sells them. I have the longacre one, bought it from discoveryparts.com
Old 09-20-2010, 07:25 AM
  #8  
GT-Rob
Registered User
iTrader: (5)
 
GT-Rob's Avatar
 
Join Date: Feb 2010
Location: Guelph
Posts: 721
Likes: 0
Received 0 Likes on 0 Posts
Default

do you not need to cut off the alternator as well? I've read some guys getting the 2-post switch and wiring the battery to one post, and alternator to the other, so it cuts them both off.

Perhaps specific race series rules define it better.
Old 09-20-2010, 04:50 PM
  #9  
laze1
New Member
iTrader: (17)
 
laze1's Avatar
 
Join Date: Jul 2007
Location: Atlanta GA
Posts: 1,611
Likes: 0
Received 1 Like on 1 Post
Default



Originally Posted by JasonZ-YA
maybe i can help with your pic laze?

Taken from this thread: - noticed it on post 5.
https://my350z.com/forum/8653962-post2.html

-J
Old 09-21-2010, 06:31 AM
  #10  
nkohler
New Member
Thread Starter
iTrader: (16)
 
nkohler's Avatar
 
Join Date: Oct 2004
Location: Columbia, MO
Posts: 565
Likes: 0
Received 5 Likes on 5 Posts
Default

So yours basically is in line with the positive power from the battery? Seems simple enough. Looks like there is some conflicting opinions as far as if this is safe to the alternator, however these are all different cars. I was hoping to get some Z33 specific info.

Has yours been tested by any safety inspectors?
Old 09-21-2010, 01:28 PM
  #11  
Nackers
Registered User
 
Nackers's Avatar
 
Join Date: Dec 2008
Location: Rockford, IL
Posts: 205
Likes: 0
Received 4 Likes on 4 Posts
Default

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

Thats what I have. They have a diagram how to do the wiring. It's not great or anything, but you should get the idea.

BTW, haven't installed it yet. Thats going on Friday.
Old 09-21-2010, 06:16 PM
  #12  
laze1
New Member
iTrader: (17)
 
laze1's Avatar
 
Join Date: Jul 2007
Location: Atlanta GA
Posts: 1,611
Likes: 0
Received 1 Like on 1 Post
Default

Inspected by NASA-SE, current NASA log book...raced regularly...

However, NASA is NOT SCCA, so who knows what a through inspection will show?

BTW: just purchased the car, but not aware of any electrical problems...

Originally Posted by nkohler
So yours basically is in line with the positive power from the battery? Seems simple enough. Looks like there is some conflicting opinions as far as if this is safe to the alternator, however these are all different cars. I was hoping to get some Z33 specific info.

Has yours been tested by any safety inspectors?
Old 09-21-2010, 07:35 PM
  #13  
nkohler
New Member
Thread Starter
iTrader: (16)
 
nkohler's Avatar
 
Join Date: Oct 2004
Location: Columbia, MO
Posts: 565
Likes: 0
Received 5 Likes on 5 Posts
Default

Originally Posted by laze1
Inspected by NASA-SE, current NASA log book...raced regularly...

However, NASA is NOT SCCA, so who knows what a through inspection will show?

BTW: just purchased the car, but not aware of any electrical problems...
I will probably snag up the one at Pegasus. The kicker is if I can find the proper power wires for the alt and ignition system. I wish I knew someone local more familiar with the Z's electrical system to get some guidance. I have the FSM so I hope that helps.
Old 10-18-2010, 04:37 PM
  #14  
nkohler
New Member
Thread Starter
iTrader: (16)
 
nkohler's Avatar
 
Join Date: Oct 2004
Location: Columbia, MO
Posts: 565
Likes: 0
Received 5 Likes on 5 Posts
Default

Hoping to tackle this job soon. Could anyone lend some help in showing me which alternator wire I should be tapping into?

I got this switch from Pegasus, here are the directions. Yeah pretty straight forward I know, but I am just unsure what alternator wire I need.

Here are the instructions:

http://www.pegasusautoracing.com/pdf...structions.pdf
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
350Z_Al
Exterior & Interior
133
10-29-2020 07:44 PM
ars88
Zs & Gs For Sale
18
04-04-2016 07:52 AM
nanotech
Exhaust
6
10-02-2015 05:02 AM
Depravity
Brakes & Suspension
14
10-01-2015 04:49 PM
Beater350z
Maintenance & Repair
4
09-09-2015 03:36 PM



Quick Reply: How to properly wire in a master cut-off switch?



All times are GMT -8. The time now is 03:08 AM.