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

Analog Gauges and cruise control

Thread Tools
 
Search this Thread
 
Old Sep 1, 2013 | 10:22 AM
  #1  
HlhnEast's Avatar
HlhnEast
Thread Starter
Safety Car
 
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
Default Analog Gauges and cruise control

My Atari dash is heading south, 2 of the 3 LCDs are washing out. The speedo still is ok but was missing segments. I dont think the problem is sun burn as I was out of town and my car sat for 2 months with a cover on it while this happened. Since my cover isnt worth a crap and I have bad targa gaskets LOTS of water got in and thanks to our fine FL heat and summer rains the inside of my car looked like a mold incubator. My theory is somehow the extreme humidity and heat in the car managed to ruin something involved with the LCDs. Any ideas or anyone have experience with this?

Anyway I am considering going to analog gauges. I know there is a really nice PnP set up available but I am thinking of something a little different. I have to do something soon as I need my fuel, oil, and temp gauges.

I have read that the cruise control speed is set thru the digi dash and once you get rid of the dash you loose the cruise function. Is there a module from say a thirdgen or something I can make to regain the cruise? I tried a search but my skills there are lacking so any help would be highly appreciated
Reply
Old Sep 1, 2013 | 11:17 AM
  #2  
DanZ51's Avatar
DanZ51
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2005
Posts: 1,188
Likes: 13
From: Wallingford Vermont
Default

Yes you will need a cruise control module out of a thirdgen (or caprice?) and you will need a 4-out buffer or another method to get a 2000 PPM signal for the CCM. I'm using a Dakota Digital SGI-5 (because of a T56 swap) that has a 2000 PPM output, the speedometer works on a 4000 PPM signal and for my '86 the ECM also takes the 2000 PPM
Reply
Old Sep 1, 2013 | 02:21 PM
  #3  
hemivett's Avatar
hemivett
Pro
10 Year Member
 
Joined: Sep 2012
Posts: 610
Likes: 12
From: Seattle Wa
Default

I though the DD unit was stand alone, didn't know it needed computer input? Or am I looking at a different model? Kinda thought it was so you could add cruise to any vehicle. h
Reply
Old Sep 1, 2013 | 10:51 PM
  #4  
DanZ51's Avatar
DanZ51
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2005
Posts: 1,188
Likes: 13
From: Wallingford Vermont
Default

Originally Posted by hemivett
I though the DD unit was stand alone, didn't know it needed computer input? Or am I looking at a different model? Kinda thought it was so you could add cruise to any vehicle. h
The Dakota Digital SGI-5 can perform a variety of signal conversions (depending upon the need). It converts my "OC" signal (from a Hall effect VSS in the T56) to an "AC" signal which the 4+3 used to produce. The 4-out buffer smooths out the signal for the speedo (to prevent needle bounce, I think) and provides a half signal (2000 PPM) for both the ECM and the CCM. I would surmise the factory Atari Dash accomplishes the functions of the 4-out buffer as also the Cruise Control Module.

I just recently converted my dash to analog, from a '87 Firebird. Originally, I had the 4-out buffer used in series with the SGI-5 but I couldn't get that to work. Might have been just a bad connection somewhere, but I ended up axing the 4-out as the SGI-5 accomplished the same function(s).

Here's the Cruise Control Module (left) and the 4-Out Buffer (right)

Last edited by DanZ51; Sep 1, 2013 at 11:42 PM.
Reply
Old Sep 2, 2013 | 07:56 AM
  #5  
HlhnEast's Avatar
HlhnEast
Thread Starter
Safety Car
 
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
Default

I looked at the Firebird gauge conversion and may actually go that route as well. Are the modules shown from the Firebird?
Reply
Old Sep 2, 2013 | 11:29 AM
  #6  
cgantner5150's Avatar
cgantner5150
Pro
10 Year Member
 
Joined: Feb 2010
Posts: 677
Likes: 3
From: Metairie LA
Default

I had to end up getting a 4 output buffer (from an FBody) to use with my VetteAid dash. The Autometer speedo takes in the 4000ppm VSS signal and was putting out a matching 4000ppm signal to the ECM. Imagine my surprise when datalogging said I was going 160mph. It also cured the bouncing speedo needle as well as some drivability issues.
I didn't keep the CC so that was not a concern for me.
Reply
Old Sep 2, 2013 | 01:22 PM
  #7  
Radio Joe's Avatar
Radio Joe
Pro
20 Year Member
 
Joined: May 2001
Posts: 683
Likes: 4
From: Laurens SC
Default

I think you could use a cruise control from a 90-2000 Chevy truck. Uses a VSS input only and its electric instead of the vacuum. Im planning to put one on my car and know a guy from my old Corvair club that installed one on his Corvair by glueing magnets onto one axle as a speed sensor.

Of course I no longer have an ECM (carbed) so maybe its not possible for you...
Reply
Old Sep 2, 2013 | 08:25 PM
  #8  
DanZ51's Avatar
DanZ51
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2005
Posts: 1,188
Likes: 13
From: Wallingford Vermont
Default

Originally Posted by HlhnEast
I looked at the Firebird gauge conversion and may actually go that route as well. Are the modules shown from the Firebird?
Yes the modules came out of a Firebird from the junk yard. My (firebird) gauges I bought off the net- very cheap $35. And the conversion was an incredible PITA for me. I got it done (finally) but I put a LOT of hours into it. I couldn't get the chopped up FB cluster to fit nicely. The FB cluster looks like a plastic box, but there not one square side on it anywhere. I trashed that and whittled up my own box to mount the gauges in. It came out pretty good, but I'll be looking on the side for some nice Autometers, or Stewart Warners some day


Last edited by DanZ51; Sep 2, 2013 at 08:38 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-1

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-2

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-3

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-4

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-5

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-6

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-7

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-8

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-9

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
Old May 5, 2023 | 03:42 PM
  #9  
KevinKos's Avatar
KevinKos
1st Gear
 
Joined: May 2023
Posts: 1
Likes: 0
Default Analog Cruise Controller

I'm new to this forum and was brought here via Google search for "Analog Cruise Control", My family has had numerous Corvettes over the years, ranging in years from 1962 through 1990 and pretty much every year in between. My Mom was especially proud of her fully restored 1967, and my favorite was the drop-top 1972 I got my first ticket in.

Now I'm working on something new/old and can use the collective wisdom of guys and gals who get things done.

I have an old school International Scout II, and am doing a 383 Stroker swap. No electronic components. The throttle is a cable linkage. Is there an analog cruise I can set up? I figured if anyone would know, it would be someone here. Thanks in advance for any guidance you can provide. Basically, I want to install cruise into an old "old school hot rod" that's not intended to break the sound barrier. I just want convenience and reliability of cruise control without electronic components.

Last edited by KevinKos; May 5, 2023 at 03:49 PM. Reason: remembered something else
Reply

Get notified of new replies

To Analog Gauges and cruise control





All times are GMT -4. The time now is 12:19 PM.

story-0
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-1
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-2
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-3
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-4
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-5
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-6
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE