 Speedo sensor to 915 Gearbox |
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| Biggles |
 Feb 17 2026, 01:57 AM
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#1
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Member  Group: Members Posts: 203 Joined: 5-September 13 From: UK Member No.: 16,353 Region Association: England  |
Hi all.
Curious to know what other people's set up is with their speedo sensor on their cars. I have a 915 gearbox (on a 3.2 engine) and have had to pull the sensor out of the case as the speedo needle was bouncing. (Had the speedo rebuilt and checked the earth to it). See photos. Obviously not a normal set up given the box is flipped from a 911 and a previous owner has made up something that was working. I haven't cleaned the sensor yet as that may do it but curious to know where this sensor might have come from (it looks like it's been broken out of a larger body/housing) and what others have on their 915 or 901 set up. Cheers. Chris  Attached thumbnail(s) 
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| Steve |
Feb 17 2026, 09:21 AM
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#2
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914 Guru Group: Members Posts: 6,015 Joined: 14-June 03 From: Laguna Niguel, CA Member No.: 822 Region Association: Southern California 
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Buy the correct speedo sensor and special side plate for it from Wevo.
That is what I’m using with no issues. https://www.wevo.com/Products/TransmissionP...nSideCovers.htm https://www.pelicanparts.com/More_Info/9116...amp;SVSVSI=0586   |
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| Biggles |
Feb 18 2026, 06:35 AM
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#3
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Member Group: Members Posts: 203 Joined: 5-September 13 From: UK Member No.: 16,353 Region Association: England |
QUOTE(Steve @ Feb 17 2026, 03:21 PM)  Buy the correct speedo sensor and special side plate for it from Wevo. That is what I’m using with no issues. https://www.wevo.com/Products/TransmissionP...nSideCovers.htm https://www.pelicanparts.com/More_Info/9116...amp;SVSVSI=0586 Thanks Steve. Doesn't look a cheap set up! Anyone else? @Cairo94507 Michael, whats your set up? |
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| ConeDodger |
Feb 18 2026, 07:18 AM
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#4
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Apex killer! Group: Members Posts: 24,341 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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QUOTE(Biggles @ Feb 18 2026, 09:35 AM) QUOTE(Steve @ Feb 17 2026, 03:21 PM) Buy the correct speedo sensor and special side plate for it from Wevo. That is what I’m using with no issues. https://www.wevo.com/Products/TransmissionP...nSideCovers.htm https://www.pelicanparts.com/More_Info/9116...amp;SVSVSI=0586 Thanks Steve. Doesn't look a cheap set up! Anyone else? @Cairo94507 Michael, whats your set up? Chris, In the UK, you’ll use Twinsparkracing.com I think. I have a 915 with LSD all set up but I seem to have abandoned the plan and stuck with the 901. (IMG:style_emoticons/default/wacko.gif) |
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| T.Rick6 |
Feb 18 2026, 07:29 AM
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#5
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Member Group: Members Posts: 69 Joined: 1-October 19 From: Douglasville, Ga Member No.: 23,512 Region Association: South East States
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I also had this problem, went with a GPS for my Speedo. I followed Clay’s write up…
(IMG:style_emoticons/default/beerchug.gif) |
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| Cairo94507 |
Feb 18 2026, 08:31 AM
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#6
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Michael Group: Members Posts: 10,572 Joined: 1-November 08 From: Auburn, CA Member No.: 9,712 Region Association: Northern California
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Chris @Biggles - I have a later 911 electric speedometer and I went with Dakota Instruments digital GPS speedometer unit. I have been using it since my car got back on the road about 7 years ago. I hope this helps. (IMG:style_emoticons/default/beerchug.gif)
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| mepstein |
Feb 18 2026, 08:50 AM
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#7
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914-6 GT in waiting Group: Members Posts: 20,446 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(Cairo94507 @ Feb 18 2026, 09:31 AM) Chris @Biggles - I have a later 911 electric speedometer and I went with Dakota Instruments digital GPS speedometer unit. I have been using it since my car got back on the road about 7 years ago. I hope this helps. (IMG:style_emoticons/default/beerchug.gif) Michael - Is that 2 units or 1. I need to get something for my electric speedo but I don't see the second SG1-5E listed. Just the GPS-50-2 @Cairo94507 |
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| Cairo94507 |
Feb 18 2026, 09:33 AM
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#8
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Michael Group: Members Posts: 10,572 Joined: 1-November 08 From: Auburn, CA Member No.: 9,712 Region Association: Northern California
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Hi Mark @mepstein - Yeah, 2 units. The 2nd one is a speedometer "interface". Dakota Digital said I needed both to make it work. If you need it, I can look for my paperwork. (IMG:style_emoticons/default/beerchug.gif)
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| mepstein |
Feb 18 2026, 09:36 AM
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#9
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914-6 GT in waiting Group: Members Posts: 20,446 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(Cairo94507 @ Feb 18 2026, 10:33 AM) Hi Mark @mepstein - Yeah, 2 units. The 2nd one is a speedometer "interface". Dakota Digital said I needed both to make it work. If you need it, I can look for my paperwork. (IMG:style_emoticons/default/beerchug.gif) Before you look it up, do you have a stock style speedo or is it electronic? |
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| Steve |
Feb 18 2026, 10:47 AM
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#10
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914 Guru Group: Members Posts: 6,015 Joined: 14-June 03 From: Laguna Niguel, CA Member No.: 822 Region Association: Southern California
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@biggles check out the GPS speedometers from speedhut. I’m running this Speedo in my v8 914
https://speedhut.com/gauge-applications/4-g...ometer-160-mph/ |
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