New Porsche 914 Relay Board |
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New Porsche 914 Relay Board |
Steve_R |
Jan 15 2021, 01:41 PM
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#1
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Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
Here is a new relay board for the Porsche 914 - 4 cylinder. It is CNC machined from HDPE polymer plastic and all of the connections are soldered wires. The inside is sealed with epoxy preventing any moisture from causing corrosion. This relay board uses the stock relays for power, heater and fuel pump. There are no provisions for the rear window heater. The relay socket used for the window heater is used to store an extra relay.
This board uses an ATC style fuse and has an LED that illuminates when the relay board is supplying power to the fuel pump. This is useful in diagnosing fuel pump issues. The LED illuminates for about 2 seconds when the key is turned on and remains illuminated when the engine is running. This board does not come with any relays or the voltage regulator. Sorry, I can’t ship international. $325.00 Shipped. Attached image(s) |
BillJ |
Jan 15 2021, 01:57 PM
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#2
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Senior Member Group: Members Posts: 1,106 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
A work of art. Why no rear window heater provision (just curious)?
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yellowporky |
Jan 16 2021, 10:23 AM
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#3
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Member Group: Members Posts: 427 Joined: 18-October 09 From: Martinez, Ca. Member No.: 10,948 Region Association: Northern California |
I just bought one from his listing on Pelican. I am excited to see it
Thanks for making this |
bdstone914 |
Jan 17 2021, 12:05 PM
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#4
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bdstone914 Group: Members Posts: 4,529 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
@Steve_R
Nice work. Three observations 1. You made the relay sockets recessed. I doubt the 914 Rubber relays will fit that board as they are slightly larger is diameter. 2. The socket for the body harness has the female locating hole but not the male locating pin that the engine harness connector. I think the factory made both to reduce the possibility of plugging in the harness one pin off. I know if you do that on the engine harness it will fry the harness. 3. No holes for the voltage regulator. I do a thicker area on the side where the hole go. These need to be carefully drilled and the correct screw length used or the circuits will be damaged. @mikey914 Attached thumbnail(s) |
Mikey914 |
Jan 17 2021, 02:00 PM
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#5
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The rubber man Group: Members Posts: 12,677 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
The shape of the relay "socket" would preclude using our relays. It is an interesting choice in that even the stock ones will be a tight fit.
I had looked at making the open source relay board that is available, but the machine cost was over $150 a board didn't see any margin as we have guys rebuilding these for less than $200. Kudos to you for taking this on, but it's a lot of work and the details can be a big problem. |
Steve_R |
Jan 17 2021, 02:10 PM
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#6
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Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
@Steve_R Nice work. Three observations 1. You made the relay sockets recessed. I doubt the 914 Rubber relays will fit that board as they are slightly larger is diameter. 2. The socket for the body harness has the female locating hole but not the male locating pin that the engine harness connector. I think the factory made both to reduce the possibility of plugging in the harness one pin off. I know if you do that on the engine harness it will fry the harness. 3. No holes for the voltage regulator. I do a thicker area on the side where the hole go. These need to be carefully drilled and the correct screw length used or the circuits will be damaged. @mikey914 Thanks for the comments. 1. I have not tried the 914 Rubber relays. However, The stock relays sit on top of the boss so if the 914 Rubber relays are a little larger they should work. 2. I omitted the male locating pin and increased the distance from the female hole to the edge of the raised area. This will not allow the connector to be plugged in one pin off. 3. The pic in the post was before I drilled the holes for the voltage regulator. All of the relay boards have the pilot holes drilled and I supply the correct screws/washers. Attached image(s) |
Steve_R |
Jan 17 2021, 02:20 PM
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#7
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Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
The shape of the relay "socket" would preclude using our relays. It is an interesting choice in that even the stock ones will be a tight fit. I had looked at making the open source relay board that is available, but the machine cost was over $150 a board didn't see any margin as we have guys rebuilding these for less than $200. Kudos to you for taking this on, but it's a lot of work and the details can be a big problem. Yep, it was a ton of work. I only have a few left and I will not be making any more. Steve |
Steve_R |
Jan 23 2021, 12:35 PM
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#8
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Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
I still have a few left. |
yellowporky |
Jan 23 2021, 01:51 PM
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#9
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Member Group: Members Posts: 427 Joined: 18-October 09 From: Martinez, Ca. Member No.: 10,948 Region Association: Northern California |
I received mine a couple days ago and looks great. Thanks
I will install this weekend. Thank you for making this part |
Fahren Cars |
Jan 25 2021, 12:16 PM
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#10
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Newbie Group: Members Posts: 7 Joined: 16-January 21 From: Dallas-Fort Worth Member No.: 25,084 Region Association: Southwest Region |
Here is a new relay board for the Porsche 914 - 4 cylinder. It is CNC machined from HDPE polymer plastic and all of the connections are soldered wires. The inside is sealed with epoxy preventing any moisture from causing corrosion. This relay board uses the stock relays for power, heater and fuel pump. There are no provisions for the rear window heater. The relay socket used for the window heater is used to store an extra relay. This board uses an ATC style fuse and has an LED that illuminates when the relay board is supplying power to the fuel pump. This is useful in diagnosing fuel pump issues. The LED illuminates for about 2 seconds when the key is turned on and remains illuminated when the engine is running. This board does not come with any relays or the voltage regulator. Sorry, I can’t ship international. $325.00 Shipped. How does one know when it's time (or almost time) for a new relay board? What are the symptoms and visual cues? |
rjames |
Jan 25 2021, 12:44 PM
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#11
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I'm made of metal Group: Members Posts: 3,948 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
How does one know when it's time (or almost time) for a new relay board? What are the symptoms and visual cues? Things stop working. (IMG:style_emoticons/default/biggrin.gif) Here's a link to a wiring diagram that shows everything that runs through the board. Relay board Wiring Diagram |
peteyd |
Jan 27 2021, 07:46 AM
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#12
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Senior Member Group: Members Posts: 707 Joined: 27-March 08 From: Elora, Ontario, Canada Member No.: 8,858 Region Association: Canada |
Very cool. can we see pictures of the underside?
Pete |
Steve_R |
Jan 27 2021, 10:12 PM
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#13
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Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
Very cool. can we see pictures of the underside? Pete It's filled with Epoxyseal9000. Attached image(s) |
Steve_R |
Feb 28 2021, 12:49 PM
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#14
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Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
I still have a few left.
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Steve_R |
Mar 13 2021, 03:54 PM
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#15
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Member Group: Members Posts: 68 Joined: 8-August 12 From: San Diego, CA Member No.: 14,777 Region Association: None |
I just sold the last one.
Thanks everyone! |
dknechtly |
Jun 5 2022, 12:56 PM
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#16
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Yellow 914 Group: Members Posts: 68 Joined: 11-April 03 From: Wylie, TX Member No.: 560 Region Association: None |
Any plans to make more? Thanks
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DRPHIL914 |
Jun 6 2022, 06:14 AM
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#17
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Dr. Phil Group: Members Posts: 5,768 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Any plans to make more? Thanks @dknechtly I think if my memory serves me correctly he is not planning on making any more but passed this along to Mark Whitesell and 914rubber @mikey914 might be able to chime in here i think they were going to pick this up and make them , if we had enough people that wanted this i bet he would do it. Phil |
dknechtly |
Jun 6 2022, 08:15 AM
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#18
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Yellow 914 Group: Members Posts: 68 Joined: 11-April 03 From: Wylie, TX Member No.: 560 Region Association: None |
Thanks. It's tiresome to deal with refurb'd parts only to come with the same issue in a year or two.
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DRPHIL914 |
Jun 6 2022, 09:13 AM
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#19
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Dr. Phil Group: Members Posts: 5,768 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Thanks. It's tiresome to deal with refurb'd parts only to come with the same issue in a year or two. Agreed!, i was stranded last fall, for the first time in 12 years due to a failed / shorted out relay board!! that was the one part i didnt have a spare of in my car . Missed okteenerfest due to it. I am still looking for a NOS or one of the new ones he did that someone would part with to have as a back up but right now i have a nice refurbished one from 914sixer in the car, but no spare. Wish mark would make these, i know he said it would cost $150 to make but i would pay $250 for a new one, i think many would too , it dont think its a close second to get a refurb for $150 or $200 if you can have a brand new one for $250. Phil |
Mikey914 |
Jun 7 2022, 09:05 AM
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#20
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The rubber man Group: Members Posts: 12,677 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
Yes we have made some progress on these. The costing is where we are having the issues. You know me I try to keep it as affordable as possible. I'll post up some pics later today.
Mark |
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