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> Speedo sensor to 915 Gearbox
Biggles
post Feb 17 2026, 01:57 AM
Post #21


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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 Image


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Posts in this topic
Biggles   Speedo sensor to 915 Gearbox   Feb 17 2026, 01:57 AM
Steve   Buy the correct speedo sensor and special side pla...   Feb 17 2026, 09:21 AM
Biggles   Buy the correct speedo sensor and special side pl...   Feb 18 2026, 06:35 AM
ConeDodger   [quote name='Steve' post='3245550' date='Feb 17 2...   Feb 18 2026, 07:18 AM
T.Rick6   I also had this problem, went with a GPS for my Sp...   Feb 18 2026, 07:29 AM
Cairo94507   Chris @Biggles - I have a later 911 electric spe...   Feb 18 2026, 08:31 AM
mepstein   Chris @[url=http://www.914world.com/bbs2/index.p...   Feb 18 2026, 08:50 AM
Cairo94507   Hi Mark @mepstein - Yeah, 2 units. The 2nd one ...   Feb 18 2026, 09:33 AM
mepstein   Hi Mark [b]@[url=http://www.914world.com/bbs2/in...   Feb 18 2026, 09:36 AM
Steve   @[url=http://www.914world.com/bbs2/index.php?showu...   Feb 18 2026, 10:47 AM
Cairo94507   @mepstein - Electronic speedo (later 911).   Feb 18 2026, 12:49 PM
mepstein   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Feb 18 2026, 03:51 PM
Biggles   thanks all. A few options it would seem. I'm m...   Feb 18 2026, 04:09 PM
Larry.Hubby   The remains you see on the end of the wires are th...   Feb 18 2026, 09:35 PM
Biggles   The remains you see on the end of the wires are t...   Feb 19 2026, 04:13 AM
914dave   Running the Wevo side plate with the 87 911 tach. ...   Feb 19 2026, 07:44 AM
914dave   duplicate post   Feb 19 2026, 07:45 AM
mepstein   The guys at SG digital confirmed I also need the s...   Feb 19 2026, 01:08 PM
Luke M   I had PMS build my Bott 916/915 gear box. What PMS...   Feb 19 2026, 03:21 PM
scallyk9   My 1974 3.2L conversion is running a later 915 tra...   Feb 19 2026, 04:56 PM
Larry.Hubby   Here's my electric speedometer adaptation. Th...   Feb 19 2026, 08:03 PM


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