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swapping tachs
I am unsure about the servicability of my tach. Could be the tach or my wiring. I am thinking of swapping my tach with a car that I know the tach works. Could my 77 tach be swapped into a turbo of later vintage? I know they have different redlines etc but would it work?? What year cars are compatible with a 77?
Shawn
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Shawn 77 Targa with 2.7 My never-ending work in progress that has been off the road since Mar 2004 
Last edited by davis911s; 03-25-2002 at 05:36 PM.. |
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03-24-2002, 06:00 PM
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NOBODY KNOWS?
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Shawn 77 Targa with 2.7 My never-ending work in progress that has been off the road since Mar 2004
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03-25-2002, 05:33 PM
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Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,783
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in a word yes
just dont try to use a really early tach in a later car........... the signal given to the tach from the ignition is different..............soot I dont remember the details but .5 volt squarewave rings some sort of bell. on thelater cars the signal to the tach has bee modernized, the tach will work........... just need to have the redlionemoved
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Don't feed the trolls. Don't quote the trolls  http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
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03-25-2002, 05:39 PM
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Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,783
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warnng................. dont type when tired
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Don't feed the trolls. Don't quote the trolls http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
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03-25-2002, 05:40 PM
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I swapped in a '76 tach to my '75 with no problems. Just had to get the wires right.
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03-25-2002, 05:43 PM
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1975 Porsche 911 2.7
