[C2] GPS speedometer
Thread Starter
Safety Car
Joined: Jun 2004
Posts: 4,960
Likes: 527
From: Witness Protection Program Somewhere, USA
GPS speedometer
At SEMA in Nov and saw a few vendors now offering replacement speedos using GPS to operate the gauge. I have been struggling with non-working speedometers in my LS3/Tremec equipped C2 and wondering if anyone here knows of vendors who offer this with a stock looking 65 guage. If not, what are my options since cable driven have left me very frustrated.
Thx.
Thx.
Safety Car
Joined: Oct 2001
Posts: 3,599
Likes: 622
From: Coldwater MI
I wonder if you could use this: http://www.zip-corvette.com/65-67-el...rsion-kit.html
with one of these: http://www.dakotadigital.com/index.c...rod/prd837.htm
or one of these: http://classicdash.com/product/unive...erface-module/
with one of these: http://www.dakotadigital.com/index.c...rod/prd837.htm
or one of these: http://classicdash.com/product/unive...erface-module/
Instructor
Joined: Sep 2009
Posts: 222
Likes: 55
From: Chico California
SLWRNU,
You mention that you're running a Tremec, they usually have a sensor sending unit (VSS, vehicle speed sensor)(two wire plug near the top of the tranny on the passenger side). If the wiring harness you're using is wired to bring that signal from the tranny to the ECM it's a simple plug-in.
There's no way a speedo will be able to read anything off the engine since the engine doesn't know what gearing, tire O.D., etc you're running.
Good luck,
Rick
You mention that you're running a Tremec, they usually have a sensor sending unit (VSS, vehicle speed sensor)(two wire plug near the top of the tranny on the passenger side). If the wiring harness you're using is wired to bring that signal from the tranny to the ECM it's a simple plug-in.
There's no way a speedo will be able to read anything off the engine since the engine doesn't know what gearing, tire O.D., etc you're running.
Good luck,
Rick
Race Director
Joined: Jun 2006
Posts: 17,901
Likes: 751
From: Inverness FL
St. Jude Donor '07
I wonder if you could use this: http://www.zip-corvette.com/65-67-el...rsion-kit.html
with one of these: http://www.dakotadigital.com/index.c...rod/prd837.htm
or one of these: http://classicdash.com/product/unive...erface-module/
with one of these: http://www.dakotadigital.com/index.c...rod/prd837.htm
or one of these: http://classicdash.com/product/unive...erface-module/
Bill
Pro
Joined: Feb 2003
Posts: 745
Likes: 261
From: Carlisle Pa.
2025 C1 of the Year - Unmodified Finalist
2020 Corvette of the Year Finalist (stock)
2019 C1 of Year Winner (stock)
I have used a GPS speedometer in my race car and found it very accurate
from 20 mph to 200 mph.
Very little effort to install.
from 20 mph to 200 mph.
Very little effort to install.
Drifting
Joined: Oct 2014
Posts: 1,267
Likes: 346
From: London ON
At SEMA in Nov and saw a few vendors now offering replacement speedos using GPS to operate the gauge. I have been struggling with non-working speedometers in my LS3/Tremec equipped C2 and wondering if anyone here knows of vendors who offer this with a stock looking 65 guage. If not, what are my options since cable driven have left me very frustrated.
Thx.
Thx.
OR
a mechanical output driving a speedo gear (of various colors) depending on your gearing/tire size. This is located directly opposite on the drivers side (2nd picture from left).
My Tremec 600 5-speed has the mechanical speedo gear and cable to drive my stock 66 speedometer. You could call SST and the great folks there would be able to help you out selecting the right colored gear and housing. Bill
Last edited by NightshiftHD; Jan 20, 2017 at 07:47 PM.
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Pro
Joined: May 2013
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From: Classic Car Capital of Canada
Race Director
Joined: Jun 2006
Posts: 17,901
Likes: 751
From: Inverness FL
St. Jude Donor '07
Nice looking alternative
https://www.corvetteforum.com/forums...-restomod.html
https://www.corvetteforum.com/forums...-restomod.html
Bill