Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> starter relay, next gen modification
Tom
post Oct 25 2011, 06:31 PM
Post #1


Advanced Member
****

Group: Members
Posts: 2,139
Joined: 21-August 05
From: Port Orchard, WA 98367
Member No.: 4,626
Region Association: None



Well, been meaning to get this done for a while. Didn't want the hot start kit from Bosche or the Ford relay, so I found one on line that I liked.
Installed the relay on a small bracket on one of the mounting screws for the relay board. Ran a new small yellow wire to pin 6 of the 12 pin connector and a brown ground wire to the bracket . Ran two 12 ga. wires fron the relay to the solenoid with the hot wire having an inline water resistant ATC fuse holder with a 30 amp fuse. Put some heat shrink around the normally used large yellow wire to protect it. On the solenoid side used tape to protect the connector that used to be hooked to the solenoid.
This relay uses 140 mili-amp so not a very large inductive spike to worry about, but I installed a supression diode across the relay coil anyway. Also put a larger one across the solenoid coil at the relay ( 87 to ground). This supresses the solenoid coil inductive spike to protect the relay contacts.
here are a few pics, and a link to more info: http://www.google.com/url?sa=t&rct=j&a...eg_6KDxZdKYQYGw This is the aeroelectric link
Oh, I tested it several times and it works just fine.
Tom
Edit: changed back EMF to inductive spike, sorry if this confused anyone. Inductive or transient spike is the correct term for what is happening here


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
Tom   starter relay   Oct 25 2011, 06:31 PM
Tom   Pics are large, so several posts will be needed.   Oct 25 2011, 06:33 PM
Tom   another one   Oct 25 2011, 06:34 PM
76-914   Very nice Tom, but I'm not taking my Ford rela...   Oct 25 2011, 08:28 PM
Tom   76-914, No reason to, the Ford relay is just g...   Oct 25 2011, 09:20 PM
Drums66   .....Copy of the hot start kit in another location...   Oct 26 2011, 05:19 PM
Tom   Drums, Thanks for the compliment. :) Yea,...   Oct 27 2011, 01:41 PM
Tom   I have been thinking of the next generation of thi...   Feb 9 2012, 06:40 AM
Prospectfarms   I have been thinking of the next generation of th...   Feb 9 2012, 07:10 AM
pcar916   ... add a push to start switch so when I need to ...   Feb 9 2012, 08:54 AM
76-914   I have been thinking of the next generation of th...   Feb 9 2012, 09:17 AM
vsg914   So you spent a little time and money to fix a prob...   Feb 9 2012, 07:16 AM
Prospectfarms   :blink: discuss starter switch problems Hot st...   Feb 9 2012, 08:15 AM
Cap'n Krusty   Look out Maude, here comes the rain on the parade...   Feb 9 2012, 09:15 AM
Elliot Cannon   Look out Maude, here comes the rain on the parade...   Feb 10 2012, 10:53 AM
Tom   pcar916, I haven't finalized what I will ...   Feb 9 2012, 09:26 AM
Tom   Cap'n Krusty, Rain away, we PNWers are used...   Feb 9 2012, 09:29 AM
andys   My '47 Ford had a button right on the relay th...   Feb 9 2012, 11:31 AM
ClayPerrine   We had hot start problems with both 914s, but putt...   Feb 9 2012, 12:28 PM
pcar916   ... putting on a gear drive starter cured that on...   Feb 9 2012, 12:58 PM
Tom   Prospectfarms, No starter relay in the 914. T...   Feb 9 2012, 02:10 PM
76-914   Prospectfarms, I have no plans at ...   Feb 10 2012, 07:24 PM
Prospectfarms   Yes, I understand that every time you open a circu...   Feb 10 2012, 12:15 AM
Tom   Well, now that I have the fuse block kits all done...   Apr 6 2012, 10:49 AM
Tom   With no forum to spend time on, I found time to fi...   May 15 2012, 06:01 AM
76-914   Tom, I received my kit while this site was down. C...   May 15 2012, 09:15 AM
Tom   Kent, I sent you a PM. I think I put in some...   May 15 2012, 01:11 PM
Valy   Tom very nice but a word of advise: Please, put a ...   May 15 2012, 01:20 PM
jim_hoyland   Like your idea, very clean installation. If the wi...   May 15 2012, 04:33 PM
Tom   Jim, With the key off, the coil has no power ...   May 15 2012, 07:08 PM
jim_hoyland   Please post the schematic, the parts list, and ins...   May 15 2012, 07:33 PM
Tom   Jim, I'll put an updated schematic tomorrow...   May 15 2012, 09:22 PM
Tom   As you can see from the pictures the large yellow ...   May 16 2012, 06:15 AM
Tom   Additional pics for illustration purposes. To...   May 16 2012, 06:18 AM
Tom   more. Even though this is first gen of this m...   May 16 2012, 06:20 AM
jim_hoyland   Am I correct that the relay will be used by both t...   May 16 2012, 08:49 AM
Tom   Jim, Yes, the relay works for both the key swit...   May 16 2012, 08:58 AM
jim_hoyland   Just installed the relay today. How much amperage ...   Jul 3 2012, 06:21 PM
76-914   Jim, the amp load to activate the relay is minimal...   Jul 3 2012, 06:32 PM
Tom   Jim, The relay I used draws about 145 miliAmps...   Jul 4 2012, 03:12 AM
Harpo   Good afternoon Tom, You posted that these kits ar...   Jul 4 2012, 10:53 AM
Tom   Auto Atlanta sells them. They are in the catalogue...   Jul 4 2012, 11:44 AM
jim_hoyland   Finally completed the hot start relay and added th...   Jul 6 2012, 02:35 PM
jim_hoyland   Remote starter unit. Momentary switch and magnet.....   Jul 6 2012, 02:37 PM
jim_hoyland   Installed out of view, and set up on grill....   Jul 6 2012, 02:38 PM
Tom   Jim, That is looking nice, glad it all worked o...   Jul 6 2012, 07:02 PM


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 18th May 2024 - 07:54 AM