C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

VSS Question

Thread Tools
 
Search this Thread
 
Old Jan 24, 2005 | 12:55 AM
  #1  
mean8t's Avatar
mean8t
Thread Starter
Racer
20 Year Member
 
Joined: May 2001
Posts: 472
Likes: 0
From: Tampa Bay Area
Default VSS Question

I have been running my car for the last 1500 mi w/o one. I have seen the one from painless for 100 bucks, that is a bit pricey. What car, maybe a camaro, could I get a sesor from that would work. I have an 85 computer. I guess I am asking can I go to a parts store and get one from a TPI Camaro?

TIA
Reply
Old Jan 24, 2005 | 02:42 AM
  #2  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default

no speedo? Damn.

That means no odo. double damn.

I don't think your gonna find them just anywhere. Call Chris @ Superior Chevy, 1.800.728.8267.

Also, you will have to tell him the gear you are running. I don't think the computer is all that relavent.
Reply
Old Jan 24, 2005 | 07:43 AM
  #3  
IBEAM700's Avatar
IBEAM700
Safety Car
 
Joined: Feb 2001
Posts: 4,397
Likes: 0
From: Looks like I picked the wrong week to stop sniffin glue Orlando
Default

You need a part# but i got mone from www.gmpartsdirect.com
Reply
Old Jan 24, 2005 | 07:54 AM
  #4  
Red Tornado's Avatar
Red Tornado
Team Owner
 
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
Default

thats amazing. how did you go past the first 25 miles without the VSS? you should have been thrown into "limp home" mode.
Reply
Old Jan 24, 2005 | 01:11 PM
  #5  
mean8t's Avatar
mean8t
Thread Starter
Racer
20 Year Member
 
Joined: May 2001
Posts: 472
Likes: 0
From: Tampa Bay Area
Default

Originally Posted by bogus
no speedo? Damn.

That means no odo. double damn.

I don't think your gonna find them just anywhere. Call Chris @ Superior Chevy, 1.800.728.8267.

Also, you will have to tell him the gear you are running. I don't think the computer is all that relavent.
Why would I need to tell him what gear I am running? Also I have a speedo and odo, but this is an 80 Vetteand it has a mechanical speedo, where as the 85 Vette (which is the computer I am using) has a digital speedo, right? So I am going to need a VSS out of a TPI camaro or Firebird, right?

Thanks again

edited to say: it kicks code 24 but I really don't have any major driveability issues, considering the computer is untuned.
Reply
Old Jan 24, 2005 | 01:26 PM
  #6  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default

Ah, didn't know those details.

if you were running an 85, with digital dash, the VSS is keyed back to the final drive ratio.

You do need the ECU from an Fbody.
Reply
Old Jan 24, 2005 | 01:34 PM
  #7  
mean8t's Avatar
mean8t
Thread Starter
Racer
20 Year Member
 
Joined: May 2001
Posts: 472
Likes: 0
From: Tampa Bay Area
Default

I am not running the digital dash, just the stock speedo out of my 80 Vette.

edited to say: Where does the VSS Attach to? The tranny of the speedometer? The one that I saw from Painless Wiring attached to the back of the speedometer and then the speedo cable attached to it. Is the stock ones like this or do they attach to the tranny?

TIA

Last edited by mean8t; Jan 24, 2005 at 01:41 PM.
Reply
Old Jan 24, 2005 | 01:47 PM
  #8  
IBEAM700's Avatar
IBEAM700
Safety Car
 
Joined: Feb 2001
Posts: 4,397
Likes: 0
From: Looks like I picked the wrong week to stop sniffin glue Orlando
Default

Ahhh, now I understand what you’re doing. You have a very unique problem here, but I think I may have the answer.
On one side you need an electric signal to assure the ECM everything is within check, and on the other side you need the mechanical cable to make the in-dash Speedo work.

You’re going to need two parts here. First, if your 700R4 doesn’t have a mechanical output from the trans you’ll need to find one.
Second, JTR offers a device that will hook up to your mechanical output from the 700 and send the electrical signal to the ECU while retaining the mechanical throughput to the Speedo.

Hope this made sense.

https://shell7.tdl.com/~jags/SpeedSensors_Order.html
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jan 24, 2005 | 02:17 PM
  #9  
mean8t's Avatar
mean8t
Thread Starter
Racer
20 Year Member
 
Joined: May 2001
Posts: 472
Likes: 0
From: Tampa Bay Area
Default

Those are about the same cost as the Painless Wiring one. I was hoping not to send that much but that is how it goes.

Last edited by mean8t; Jan 24, 2005 at 02:20 PM.
Reply
Old Jan 24, 2005 | 02:20 PM
  #10  
FD2BLK's Avatar
FD2BLK
Safety Car
20 Year Member
 
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Default

I dont know about the 85 ECM but I do know that the LT1 ECM can be programed to ignore the VSS. I did an LT1 swap and never had the vss hooked up to my ECM. Since you have a mechanical speedo you will need to add a reluctor ring (With the correct pps) and drill another hole in the tail housing if you want both the speedo and the ECM to work. The problem I had is the older VSS signal is not the same PPS as the new 100,000 pps VSS units that the LT1 uses. Except for the fans turning off at a certian mph the ECM can work without the VSS signal.
Reply

Get notified of new replies

To VSS Question





All times are GMT -4. The time now is 05:33 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE