Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

Speedometer and gearing question

Thread Tools
 
Search this Thread
 
Old 04-19-2001, 06:37 AM
  #1  
Member
Thread Starter
 
92 RSS's Avatar
 
Join Date: Jul 1999
Location: WPB, Florida
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Car: 1992 Camaro RS
Engine: 5.7
Transmission: T-5
Speedometer and gearing question

My 92 RS has a electrical speedometer, right?
So if I were to buy a new speedometer It would have to be electronic? a electronic one is $199 and a mechanical one is $112. Would it be worth changing it to mechanical and can it be done?
Next question on gearing, if I change from a 3.08 to 3.73 do I need to change the speedo gears? or VSS? Does tire hight play a role in that too?

Thank You,
Dave
Old 04-19-2001, 07:58 AM
  #2  
Supreme Member

 
Engineboy's Avatar
 
Join Date: Dec 1999
Location: Reno, NV
Posts: 1,237
Likes: 0
Received 1 Like on 1 Post
Car: yep
Engine: uhuh
Transmission: sure does
1) Why would you want to change the speedo??

2) If you change gears, you will need to re-calibrate the speedo. If the ECM controls the speedo, it will need to be re-calibrated. ( I'm not sure on the early electronic ones, I would call a speedo shop.)

3) Yes.

------------------
ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

R.I.P. #3
My favorite quote about D.E. "He can see air"
Old 04-19-2001, 11:06 AM
  #3  
Member
Thread Starter
 
92 RSS's Avatar
 
Join Date: Jul 1999
Location: WPB, Florida
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Car: 1992 Camaro RS
Engine: 5.7
Transmission: T-5
Maybe I should of worded that different. I want to change out my speedometer to a Auto Meter ultra-lite, they offer a mechanical or electronical one. Which one do I need?
Old 04-19-2001, 09:12 PM
  #4  
Supreme Member

 
Engineboy's Avatar
 
Join Date: Dec 1999
Location: Reno, NV
Posts: 1,237
Likes: 0
Received 1 Like on 1 Post
Car: yep
Engine: uhuh
Transmission: sure does
I'm not familliar with the autometer gauges, I would assume that if you have an electronic speedo, I would stick with the electronic autometer.

Would make the swap easier I would think.

------------------
ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

R.I.P. #3
My favorite quote about D.E. "He can see air"
Old 04-20-2001, 01:37 AM
  #5  
Moderator

iTrader: (1)
 
Kevin91Z's Avatar
 
Join Date: Jul 1999
Location: Orange, SoCal
Posts: 10,943
Received 20 Likes on 18 Posts
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Since you have 3.08 gears, I think you have a 5-speed? Keep the electronic speedo, its worth it. For a 5-speed and 3.73 gears, you need a 7 tooth and a 21 tooth speedo gears.


------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Frozer!!!
Camaros for Sale
35
01-19-2024 04:55 PM
Scorched1984
Wheels and Tires
66
04-16-2016 06:56 PM
ezobens
DIY PROM
8
08-19-2015 10:29 PM
redmaroz
LTX and LSX
7
08-16-2015 11:40 PM



Quick Reply: Speedometer and gearing question



All times are GMT -5. The time now is 06:18 PM.