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ASR - Acts like governor?

This is a discussion on ASR - Acts like governor? within the General Help forums, part of the LSx Technical Help Section category; I just picked up a 2000 z28 with 3" Flowmaster Pipes and K&N cold air intake... I was running it ...

  1. #1
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    2000 Z28

    ASR - Acts like governor?

    I just picked up a 2000 z28 with 3" Flowmaster Pipes and K&N cold air intake... I was running it down the freeway and it would not go past 115. I had ASR enabled every time I hit that speed - Does anyone know if ASR will prevent the car from going 115+ or do I have another problem??

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    Member snake_skinner00's Avatar
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    Mystic Teal
    2000 Z28

    ASR is your traction control. it would have nothing to do with the speed limiter. i've had my 2000 above 115 plenty of times, so mabye a previous owner has set a speed limiter of 115 on your car or something?

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    Blown, Stroked, & Sprayed

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    You hitting the speed limiter.
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    black
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    if your car didn't come with z rated tires from the factory....that is where your speed limiter is..with z rated tires from the its around 162 or so.

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    Look at the tire sticker on the drivers side door.

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    Member myk02k's Avatar
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    ...I don't believe my car has had Z-rated tires, but i have hit 140 MPH before.

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    Senior Member 02z28ls1's Avatar
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    2002 Z-28 Camaro M6

    My 02 Z-28 can w/the standard tire wheel set-up and they were z-rated,didn't see any lesser rated tire availability on the option list-never heard of a Z-28 that was limited to 115. Have heard of the pickup trucks being limited to around 95. I agree that someone has fiddled w/the computer and lowered the max speed. Even my 98 V-6 car went 125 fairly easy.

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    2000 Z28

    the sticker on the door says tire rating it "T"... it just doesnt make sense that a z28 would cut out at 115.

    Although i have read that some audi's with ASR had enabled the speed limiter at a programed mph...

    I'll have to test it out at an open dry road and find out
    Last edited by dkroshko; 03-12-2006 at 04:52 PM.

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    Quote Originally Posted by snake_skinner00
    ASR is your traction control. it would have nothing to do with the speed limiter. i've had my 2000 above 115 plenty of times, so mabye a previous owner has set a speed limiter of 115 on your car or something?
    if the speed limiter had been set lower - is there a way to turn it off?

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    Blown, Stroked, & Sprayed

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    Tuning software can change it

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    Tech Junkie hammertime's Avatar
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    Quote Originally Posted by dkroshko
    the sticker on the door says tire rating it "T"... it just doesnt make sense that a z28 would cut out at 115.
    From TireRack
    P - 93 MPH
    Q - 99 MPH
    S - 112 MPH
    T - 118 MPH
    U - 124 MPH
    H - 130 MPH
    V - 149 MPH
    Z - 149+ MPH
    W - 168 MPH
    Y - 186 MPH

    Your car probably came with 235/55-16's which were not Z rated. Cars with 245/50's are...
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    2000 Z28

    dang, you guys were right it is a limiter. The stock tires were T rated (looked at the driver side door sticker), and looks like they are good up to 118. So i went out for a drive and turned the ASR off just incase and heck my Z topped off at 118...

    does anyone know how much it would cost to re-tune the computer to not limit

    have any of you experienced this before?

    Not that I drive over 118 all the time, but it would be nice to know im not limited..

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    Senior Member 02z28ls1's Avatar
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    Get some higher speed rated tires if you do reflash the computer,just to be smart and safe. The limit is there for a reason. Wanted to add that i learn something new everyday-didn't know they sold a lower speed rated tire on a Z-28-not sure why they would. My V-6 -5 speed car was not speed limited,guess it was the manual transmission. It had the T-rated tires.

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    Quote Originally Posted by 02z28ls1
    Get some higher speed rated tires if you do reflash the computer,just to be smart and safe. The limit is there for a reason. Wanted to add that i learn something new everyday-didn't know they sold a lower speed rated tire on a Z-28-not sure why they would. My V-6 -5 speed car was not speed limited,guess it was the manual transmission. It had the T-rated tires.
    Sorry I forgot to mention the tires on there right now are Z rated but computer still thinks theyre "T"

    Where would one go to get the computer reflashed? and how much $ would that cost?

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    Senior Member 02z28ls1's Avatar
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    navy blue
    2002 Z-28 Camaro M6

    Check the speed shops in your area-or buy a Predator or similar type computer reflasher.

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    Senior Member SeVeReDiStOrTiOn's Avatar
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    A predator will do it like 02z28ls1 said...along with a lot of other things. A sponser here was selling them for $325, but usually they're $400

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    Mystic Teal
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    Quote Originally Posted by Ed Blown Vert
    Tuning software can change it
    Yep, mine is set at 417 miles an hour. Sounded like a good number.

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