Another CS130 alternator upgrade question - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Sep 13th, 09, 06:01 PM Thread Starter
Senior Tech
Joe
 
Join Date: Jan 2001
Location: Benicia CA
Posts: 1,255
Question Another CS130 alternator upgrade question

I searched but didn't find this question.

A couple of years ago I installed the CS130 alternator upgrade in my 69. It has worked very well but it failed the other day so I had to replace the alternator. As a result I am doing some double checking of my system.

I tied the blue/brown wires together as shown in Wes' tech article. This is connected to the "L" output. I ran a new wire to the block behind the battery to connect the "S" (sensor) output to. (Same concept as Wes' connecting it to the back of the alterantor but I thought it may get a more accurate sense of voltage). The "F" and "P" outputs are not used.

This configuration works but it means the "S" connection is always hot. With the stock external relay setup it it hot only with the key on. Is this a problem?

I also did not get the "gen" light when the alternator failed. It does come on with the key in the "ACC" position and when it is in "crank".

The system works OK, but I am just a bit concerned about the "S" wire being hot all of the time.

Thanks

joe

Joe G

69 Coupe; ZZ430; TKO600; 3.55 posi; 13" Baer 4 wheel discs; 17" Billet Specialties wheels; Hotchkis/Koni rear; Ride Tech front; Classic AutoAir AC and power windows cuz I'm old and lazy!
Joe G is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old Sep 15th, 09, 10:32 AM Thread Starter
Senior Tech
Joe
 
Join Date: Jan 2001
Location: Benicia CA
Posts: 1,255
Smile Re: Another CS130 alternator upgrade question

Hmmm, any thoughts?

Joe G

69 Coupe; ZZ430; TKO600; 3.55 posi; 13" Baer 4 wheel discs; 17" Billet Specialties wheels; Hotchkis/Koni rear; Ride Tech front; Classic AutoAir AC and power windows cuz I'm old and lazy!
Joe G is offline  
post #3 of 4 (permalink) Old Sep 15th, 09, 06:13 PM
Senior Tech
 
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Re: Another CS130 alternator upgrade question

Sounds like you've got it wired up just fine. The 'L' wire is fed from the GEN lamp and serves two purposes. First, it excites (enables) the voltage regulator (on most anyway), and second it allows the regulator to show a failure by grounding the 'L' wire internally. Sounds like when your alternator failed, perhaps the regulator was toast and didn't have enough brian cells to ground the 'L' wire and light the light.

The 'S' terminal being hot all the time is normal. Sounds like you're aware that it's a voltage sense terminal. It's connected to battery power - typically at the main power distribution point. As a result, it will be hot always. Many folks connect the 'S' terminal directly to the B+ terminal on the back of the alternator which effectively disables the remote sensing feature altogether.

Connecting it to the horn relay buss bar would have been a better choice than the terminal block behind the battery IMHO. The horn relay is the main power distribution point and you want it to be well regulated. There will be a slight voltage drop between the battery terminal block and the horn relay, and that will show up as a slight change in system voltage depending on the load and charge rate. But in any event, I'm sure you're setup will perform better than the OEM mechanical regulator setup in terms of higher current capacity and better regulation.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
 
post #4 of 4 (permalink) Old Sep 15th, 09, 11:25 PM Thread Starter
Senior Tech
Joe
 
Join Date: Jan 2001
Location: Benicia CA
Posts: 1,255
Smile Re: Another CS130 alternator upgrade question

Thanks Dave. I like the suggestion of sense lead to the horn relay. It would make it more senstive.

Joe G

69 Coupe; ZZ430; TKO600; 3.55 posi; 13" Baer 4 wheel discs; 17" Billet Specialties wheels; Hotchkis/Koni rear; Ride Tech front; Classic AutoAir AC and power windows cuz I'm old and lazy!
Joe G is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome