Silly question: Does my 76 have a mechanical or electronic speedometer?
02-05-2003, 05:06 AM
#1
Burning Brakes
Thread Starter
Silly question: Does my 76 have a mechanical or electronic speedometer?
Tachometer is attached to the HEI ignition (as much as I remember), but where does the speedometer get itīs input from?
Is it a mechanical speedo or is it a electronic unit? And where is it attached to?
I plan on buying Autometer Pro Comp. gauges, so it would be good to know what type of gauge is the right one.. :jester
As always, Markus
BTW, The paintguy and I are already wetsanding the vette :hurray: :party:
Is it a mechanical speedo or is it a electronic unit? And where is it attached to?
I plan on buying Autometer Pro Comp. gauges, so it would be good to know what type of gauge is the right one.. :jester
As always, Markus
BTW, The paintguy and I are already wetsanding the vette :hurray: :party:
02-05-2003, 05:35 AM
#2
Le Mans Master
Re: Silly question: Does my 76 have a mechanical or electronic speedometer? (MARKUS_P)
The speedometer is cable driven on your car. It is driven by plastic gears from the output shaft on the transmission.
[Modified by silvervetteman, 5:36 AM 2/5/2003]
[Modified by silvervetteman, 5:36 AM 2/5/2003]
02-05-2003, 06:49 AM
#3
Burning Brakes
Thread Starter
Re: Silly question: Does my 76 have a mechanical or electronic speedometer? (silvervetteman)
The speedometer is cable driven on your car. It is driven by plastic gears from the output shaft on the transmission.
[Modified by silvervetteman, 5:36 AM 2/5/2003]
[Modified by silvervetteman, 5:36 AM 2/5/2003]
Do you think it makes any sense to convert the speedo into an electronic unit?
If yes, how can this be done?
Markus
02-05-2003, 08:25 AM
#4
Re: Silly question: Does my 76 have a mechanical or electronic speedometer? (MARKUS_P)
All C3's have cable driven speedo's, however the ones w/ a lockup and the L81 & L82 have a VSS unti (vehicle speed sensor)
To convert toelectronic you will need one of those. I'm not sure what tranny you have but I don't think you can put a VSS in a 350.
The C3's have a VSS that runs off the back of the speedo (it has a led and an optical sender that works w/ light reflecting from the mirror polised metal plate inside the speedo) This means you need a cable driven speedo for that VSS, a no go.
Thr 700R4 from 82 has a cable adapter but the 84+ ones have a VSS in the tranny, they are a direct swap for the mechanical unit. If you have a 700R4 running an electronic speedo is easy.
Marck
To convert toelectronic you will need one of those. I'm not sure what tranny you have but I don't think you can put a VSS in a 350.
The C3's have a VSS that runs off the back of the speedo (it has a led and an optical sender that works w/ light reflecting from the mirror polised metal plate inside the speedo) This means you need a cable driven speedo for that VSS, a no go.
Thr 700R4 from 82 has a cable adapter but the 84+ ones have a VSS in the tranny, they are a direct swap for the mechanical unit. If you have a 700R4 running an electronic speedo is easy.
Marck
02-05-2003, 07:09 PM
#5
Burning Brakes
Member Since: Aug 2000
Location: Frankfurt, Taunus Hills
Posts: 1,080
Likes: 0
Received 1 Like
on
1 Post
Re: Silly question: Does my 76 have a mechanical or electronic speedometer? (Twin_Turbo)
Autometer supplies magnetic pickups that have to go to a moving part, i.e. driveshaft or rim to get speed info from.
Works with a kind of reed-contact (magnetism).
How is the project progressing markus?
drop me a mail....... :yesnod:
Works with a kind of reed-contact (magnetism).
How is the project progressing markus?
drop me a mail....... :yesnod:
02-06-2003, 01:30 AM
#6
Burning Brakes
Thread Starter
Re: Silly question: Does my 76 have a mechanical or electronic speedometer? (454Big)
Twinturbo
Well, I guess it would be better to stay with the mechanical speedo, because I have a TH350 right now.
Frank
Hey! :seeya Good to see you again on the forum...
I saw Olivers post about the international corvette member meeting :jester:
Did you know that Oliver and I met each other when he was on vacation in Austria? I think thatīs really cool. The forum is a great "tool" of making contacts all over the world, beside that it is pure information for everybody.
Unfortunately I donīt have much time to hang around here, because Iīm still working on the car all the time...
Iīll send you an email!
Back to the topic for a few seconds:
Mounting a sensor on the driveshaft?
Does the speedo know about my choice of trannygear?
I donīt think so, I believe you meant the halfshafts or something that is direclty connected to the spindels, am I right?
Well, I guess it would be better to stay with the mechanical speedo, because I have a TH350 right now.
Frank
Hey! :seeya Good to see you again on the forum...
I saw Olivers post about the international corvette member meeting :jester:
Did you know that Oliver and I met each other when he was on vacation in Austria? I think thatīs really cool. The forum is a great "tool" of making contacts all over the world, beside that it is pure information for everybody.
Unfortunately I donīt have much time to hang around here, because Iīm still working on the car all the time...
Iīll send you an email!
Back to the topic for a few seconds:
Mounting a sensor on the driveshaft?
Does the speedo know about my choice of trannygear?
I donīt think so, I believe you meant the halfshafts or something that is direclty connected to the spindels, am I right?
