Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

mechanical transmission to electrical speedometer

Thread Tools
 
Search this Thread
 
Old Dec 25, 2008 | 12:22 AM
  #1  
arctic white 94's Avatar
Thread Starter
Teching In
 
Joined: Oct 2007
Posts: 35
Likes: 0
Default mechanical transmission to electrical speedometer

I am about to start swapping a first generation sbc into a 95 camaro. I will probably run some sort of manual non electronic transmission. I might just go with a th400 or 700r. Is it possible to get the stock speedometer to work correctly with this setup? I know you can get the signal from the abs but since the engine will not be using it can I still run it through the pcm to tune it and it function correctly? I know you can also get a reluctor wheel and speed sensor but that wouldnt have the correct signal either. Ive done alot of searching but I have not found a definite answer yet. If anyone has any advice on how to make this work it will be greatly appreciated.
Reply
Old Dec 29, 2008 | 06:13 PM
  #2  
arctic white 94's Avatar
Thread Starter
Teching In
 
Joined: Oct 2007
Posts: 35
Likes: 0
Default

Does anyone know?
Reply
Old Dec 29, 2008 | 08:22 PM
  #3  
tptransmission's Avatar
Closed ex-Sponsor Account
 
Joined: Dec 2008
Posts: 434
Likes: 0
From: Az
Default

Originally Posted by arctic white 94
I am about to start swapping a first generation sbc into a 95 camaro. I will probably run some sort of manual non electronic transmission. I might just go with a th400 or 700r. Is it possible to get the stock speedometer to work correctly with this setup? I know you can get the signal from the abs but since the engine will not be using it can I still run it through the pcm to tune it and it function correctly? I know you can also get a reluctor wheel and speed sensor but that wouldnt have the correct signal either. Ive done alot of searching but I have not found a definite answer yet. If anyone has any advice on how to make this work it will be greatly appreciated.
If it is a 700r4 you are going with, you can use the same reluctor wheel as a 4l60e. Also there are converters that can change mechanical signal to electric and vice versa.
Reply
Old Dec 30, 2008 | 01:40 AM
  #4  
9000th01ss's Avatar
Banned
iTrader: (10)
 
Joined: Feb 2008
Posts: 3,235
Likes: 2
Default

If you go with a th400 there are factory truck applications that use a reluctor wheel and electric sender.
Reply
Old Dec 31, 2008 | 08:23 PM
  #5  
arctic white 94's Avatar
Thread Starter
Teching In
 
Joined: Oct 2007
Posts: 35
Likes: 0
Default

Does the signal have to go through the pcm? Could I just use the pcm to drive the speedometer even if it is not running the engine?
Thanks for helping.
Reply
Old Jan 1, 2009 | 11:19 AM
  #6  
tptransmission's Avatar
Closed ex-Sponsor Account
 
Joined: Dec 2008
Posts: 434
Likes: 0
From: Az
Default

Originally Posted by arctic white 94
Does the signal have to go through the pcm? Could I just use the pcm to drive the speedometer even if it is not running the engine?
Thanks for helping.
You can if you want too. If it has the right cal for want ratios you are using just keep the power and ground going to it.
Reply
Old Jan 1, 2009 | 06:03 PM
  #7  
arctic white 94's Avatar
Thread Starter
Teching In
 
Joined: Oct 2007
Posts: 35
Likes: 0
Default

That would probably be the cheapest way to do it wouldnt it?
Reply
Old Jan 1, 2009 | 06:18 PM
  #8  
9000th01ss's Avatar
Banned
iTrader: (10)
 
Joined: Feb 2008
Posts: 3,235
Likes: 2
Default

I've done it like that on a '88 GMC truck, '89 Silverado, and '93 Silverado. Slightly different but same theory.
Usually cut a ton of wires out as well, and kept the ones needed.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jan 1, 2009 | 07:23 PM
  #9  
arctic white 94's Avatar
Thread Starter
Teching In
 
Joined: Oct 2007
Posts: 35
Likes: 0
Default

Do you know where I could find a wiring diagram to show what wires I need to keep.
Thanks
Reply
Old Jan 1, 2009 | 10:17 PM
  #10  
tptransmission's Avatar
Closed ex-Sponsor Account
 
Joined: Dec 2008
Posts: 434
Likes: 0
From: Az
Default

What year is your car or what type controller is it?
Reply
Old Jan 1, 2009 | 10:21 PM
  #11  
tptransmission's Avatar
Closed ex-Sponsor Account
 
Joined: Dec 2008
Posts: 434
Likes: 0
From: Az
Default

Never mind I read the beginning. Stay tuned.
Reply




All times are GMT -5. The time now is 04:24 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE