×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

97 Cavalier governor

97 Cavalier governor

97 Cavalier governor

(OP)
Just wondering where the governor is located and what te wiring looks like...cause 109 just does not cut it!!!

RE: 97 Cavalier governor

I would guess that it's integrated into the computer.

RE: 97 Cavalier governor

I think you'd do better to ask on an enthusiast's site, to be honest, but here goes...

On our car it is integrated into the engine management computer. It works off the speed pulse signal. If you were to disconnect the speed pickup then the car won't think you are moving, so the auto trans will probably throw a fit, but at least the ignition/fuel won't cut out. If you have a stick shift this will probably work. Your computer may still perform a self check and disable something or other, or switch on a warning light.

The best way to do it if that doesn't work, probably, would be to intercept the speed pulse and then build a logic box to generate an artifically slow pulse stream once you exceed a certain speed.

Some of the the reasons why cars are speed limited (1) tyres (2) driveshaft whirl (if RWD) (3) cooling system inadequacies (4) nannyism (5)handling/stability. There may be other reasons.

Your insurance will be invalid if you do this mod.

Cheers

Greg Locock

RE: 97 Cavalier governor

Yes, it's in the software.  The ECM incorporates a rev limiter and they just set the rev limit in 3rd and overdrive to hold the cars around 108 if you have the standard 112 mph tires.  Most aftermarket "powerchips" remove the governor, on the assumption that the enthusiast has already fitted higher speed rated tires, etc.  These also carry the insurance and warranty void penalties that Greg mentioned, if that is any concern. About $500, not including speeding tickets.

Blacksmith

RE: 97 Cavalier governor

Forgot to mention, I personally verified 108 mph as the limit in 1996 on a Hertz Crown Vic.  Also accidentally determined that the maximum speed for a Radio Shack magnetic mount CB antenna was only 105 mph. It wasn't until we got reported as a "Smokey" on the CB that my wife figured out why I insisted on the Crown Vic.  Never turned off the cruise control or flashed the high beams at anyone from Virginia to Florida!

Blacksmith

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close