12 volt conversion on 1940 desoto - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 01-16-2012, 11:22 AM
67Elcamino's Avatar
Registered User
 
Last photo:
Join Date: Aug 2009
Location: west covina, ca
Posts: 352
Wiki Edits: 0

Thanks: 13
Thanked 4 Times in 4 Posts
12 volt conversion on 1940 desoto

I was wondering how much work and an estimate cost of changing a completely stock 6 volt system to a 12 volt on a car like this?
Any ideas or recommendations greatly appreciated

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-16-2012, 04:56 PM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,686
Wiki Edits: 0

Thanks: 2
Thanked 87 Times in 80 Posts
Most shops would probably charge $60-$80 an hour labor,it's not really that bad to do it your self with a kit http://rebelwire.com/rebel-wire-prod...at=Wire%20Kits the 9+3 will give you all the circuits you need plus, I know guys that have done their own in 6-8 hours with no prior experience.The Techs at Rebel Wire are as near as your phone if you run into a problem too.Give this a read for some good basic info: http://reviews.ebay.com/6-to-12-Volt...00000001571127
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-16-2012, 09:20 PM
Registered User
 
Join Date: Oct 2007
Location: Tacoma Washington
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
12V conversion on 1940 Desoto

If your old wires are good thought the car just change to 12 volt bulbs and use voltage drop resistors and runtzs resistors for your gauges and heater fan motor and your radio and clock. That 6V wire is heavy enough to handle 12V. Speedway motors use to sell a book that told all about the changing from 6V to 12V contact them and ask about the book, I believe that it sold for under $10.00 I hope this helps.

lowmerc
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-17-2012, 12:43 PM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,686
Wiki Edits: 0

Thanks: 2
Thanked 87 Times in 80 Posts
While it's true the 6 volt wires can handle the load many of the older cars used cloth wrapped insulation and over time it just rots away and falls off and the exposed wires leave you open to all kinds of problems with shorts and grounds,so look it over carefully.This is an article you should read as well http://www.watsons-streetworks.com/current_topic.html Adding relays is inexpensive and very worthwhile,I made use of Doc Vettes advice (Our Hotrodders.com Legend) when I did my rewire and it really paid off.

Last edited by JeffB; 01-17-2012 at 12:49 PM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-17-2012, 01:07 PM
Registered User
 
Join Date: Oct 2007
Location: Tacoma Washington
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
12Vwire

Quote:
Originally Posted by JeffB
While it's true the 6 volt wires can handle the load many of the older cars used cloth wrapped insulation and over time it just rots away and falls off and the exposed wires leave you open to all kinds of problems with shorts and grounds,so look it over carefully.This is an article you should read as well http://www.watsons-streetworks.com/current_topic.html Adding relays is inexpensive and very worthwhile,I made use of Doc Vettes advice (Our Hotrodders.com Legend) when I did my rewire and it really paid off.

JeffB, I forgott to mention in my reply, that shrink wrap should be used over the old wires, when I did my merc, I replaced all the connectors with new ones, and used the shrink wrap over the wires, I have not priced the shrink wrap but it is pertty cheap

lowmerc
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 01-17-2012, 01:17 PM
Registered User
 
Join Date: Oct 2007
Location: Tacoma Washington
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
6V to 12V 1940 Desoto

Sorry that I forgot to mention that I used shrink warp over all of the wires along with new connector's on the wires, shrink wrap is not very expensive, really cheaper than a new wire harness. Hope this helps you out.

lowmerc
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
1940 Desoto front end replacement usmc72 Suspension - Brakes - Steering 8 01-17-2012 10:19 AM
Wheel Studs on 1940 Desoto mile-hightoyz Suspension - Brakes - Steering 3 09-12-2004 08:34 PM
converting 6 volt to 12 votl in 40 desoto? mile-hightoyz Electrical 4 06-03-2004 10:58 PM
1940 Desoto Sedan Parts? mile-hightoyz Suspension - Brakes - Steering 8 05-31-2004 11:32 AM
1940 DeSoto HEARTBREAKKID Hotrodders' Lounge 13 10-12-2002 04:03 AM


All times are GMT -6. The time now is 10:26 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.