Go Back   VetteMOD.com > VetteMOD Technical Discussion > Electrical & Ignition

Reply
 
Thread Tools
  #1  
Old 06-20-2015, 02:31 PM
JPhil's Avatar
JPhil JPhil is offline
United States | Huh?
 
Join Date: Mar 2008
Location: Loveland, Colorado, USA
Posts: 1,380
My Photos: (140)
Default Starter solenoid wiring question

I'm installing my new TKO 600, replacing the TH400. The neutral safety switch on the TKO is on the back of the tranny, whereas the TH400 one was on the shifter quadrant in the console. The OEM wiring to it is 12 gauge, the TKO switch has what looks to be 14 or possibly even 16 gauge wire to it. I can't tell exactly because it has a connector on the end which I have not yet cut off.

My question is can the smaller gauge wire on the switch handle the current for the solenoid, or should I install a relay. I can put a relay in, but I would rather keep the wiring as simple as possible, running it direct the way the factory did it.

Thanks for any insight,
John
__________________
Kill the Buddha
Reply With Quote
  #2  
Old 06-20-2015, 09:06 PM
mrvette's Avatar
mrvette mrvette is offline
United States | Phantom of the Opera
 
Join Date: Mar 2008
Location: NE Florida
Posts: 15,295
My Photos: (3)
Default

Do it the simple way, you would have to hold that solenoid for hours on end to heat up the thinner wiring......

__________________
"Hell, there are no rules here ... we're trying to accomplish something." Thomas Edison
I have a little list, let ALL of them be MIST......
Reply With Quote
  #3  
Old 06-20-2015, 11:02 PM
gkz's Avatar
gkz gkz is offline
United States | Addict
 
Join Date: Jun 2008
Location: Wake Forest, NC
Posts: 104
My Photos: (0)
Default

Quote:
Originally Posted by JPhil View Post
I'm installing my new TKO 600, replacing the TH400. The neutral safety switch on the TKO is on the back of the tranny, whereas the TH400 one was on the shifter quadrant in the console. The OEM wiring to it is 12 gauge, the TKO switch has what looks to be 14 or possibly even 16 gauge wire to it. I can't tell exactly because it has a connector on the end which I have not yet cut off.

My question is can the smaller gauge wire on the switch handle the current for the solenoid, or should I install a relay. I can put a relay in, but I would rather keep the wiring as simple as possible, running it direct the way the factory did it.

Thanks for any insight,
John
I don't know how yours is wired, but mine's path to the solenoid was like a scavenger hunt--firewall disconnect, neutral switch, ign switch, seat belt relays, starter interlock bypass relay, etc--any of them a potential bad connection for the solenoid. Run yours as is and the 16 gauge is a built in fusible link. As is, the stock setup has a constant hot wire to the starter (mine was melted by the exhaust pipe). If you're going to re-wire the system, now's the time to do it.

I ended up with a Ford solenoid in the rear compartment for the straight shot to the starter, jumping the (GM)starter solenoid with the starter 0 gauge wire, running a MaxiFuse for the rest of the car. The Ford solenoid sinks less current for it's relay coil. The Interstate battery man set me up with a BMW battery vent system.


[Only registered and activated users can see links. Click Here To Register...]
Reply With Quote
  #4  
Old 06-21-2015, 04:59 AM
JPhil's Avatar
JPhil JPhil is offline
United States | Huh?
 
Join Date: Mar 2008
Location: Loveland, Colorado, USA
Posts: 1,380
My Photos: (140)
Default

Mine is wired pretty straightforward-- 12 gauge red from battery terminal on starter motor to the shared hot terminal on the horn relay, 12 gauge red from there through firewall bulkhead connector to ignition switch, 12 gauge purple/white from solenoid terminal of ignition switch to neutral switch, 12 gauge purple back through bulkhead connector to solenoid on starter motor. I extended the 12 gauge from the console about 24 inches to get back to the transmission switch on the tailpiece, where I'll have about 4 inches of the smaller gauge wire to and from the switch with a weatherproof connector soldered in.

Last edited by JPhil; 06-21-2015 at 05:02 AM..
Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 01:11 AM.
 


Design by: vBulletin Skins Zone
Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.