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ta top speed?

This is a discussion on ta top speed? within the Firebird / WS6 forums, part of the Vehicle Specific category; 168 mph with my trusty GPS on top of the dash. All stock except that I have the car lowered ...

  1. #21
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    1999 Trans am

    168 mph with my trusty GPS on top of the dash. All stock except that I have the car lowered 2" and a really stiff suspension. ( I-55 in souh Louisiana, elevated road with miles and miles of strights)
    Last edited by cam man; 05-26-2009 at 09:31 AM.

  2. #22
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    Quote Originally Posted by Brad(WS/Z0.6) View Post
    185 mph with help of Garmin GPS...almost shit my pants
    what have you done to your car to get it to go that fast iv been 180 on a zzr 1200 and it was screamin just to get there .

  3. #23
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    1998 trans am

    Quote Originally Posted by zeus View Post
    what have you done to your car to get it to go that fast iv been 180 on a zzr 1200 and it was screamin just to get there .
    yes it will be screaming but it will get there. everything starts after 140 and goes all the way high.

  4. #24
    Millennium Falcon mpfranks's Avatar
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    2000 Trans Am WS.6

    Quote Originally Posted by calgator73 View Post
    Popular Mechanics did a top end test at the Bonneville salt flats using a firebird with very low (numerically) gearing, skinny tires and a 383 built by Lingenfelter. If I remember correctly they got it up to 200mph when it flipped. They interviewed an engineer with GM who stated that the car has an aerodynamic instability issue above 200 and wants to swap ends. I couldn't find the original article but I did find this summary on the LPE website.

    http://www.lingenfelter.com/vehicles...ats-firebird-2

    PM also did an article in 2000 regarding a twin turbo Firebird that made it up to 307. That car looked more like a dragster than anything else but it did have a few production components.
    well that i can believe. but there is no way a stock ta would flip upside down just from doing its top speed. which i think is about 185mph.

  5. #25
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    2002 Trans Am WS-6

    I got pulled over in Little Rock Arkansas at 154....i was in uniform(army) and taking my car from Ft. Hodd TX to Nashville for storage so they actually let me go but 154 was what i was clocked at with laser

  6. #26
    Auto Painter RyanJM's Avatar
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    1998 Trans Am

    Quote Originally Posted by mpfranks View Post
    youre telling me that if you remove the governor and go over 165 the car might shift into reverse....?
    I was talking A4 compared to a 6spd. My A4 with 3.73 will hit redline alot sooner than a 6spd car woth 3.73.
    Also if you had a 6spd and 2.73 or 3.23 with enough horsepower(twin turbo for example) you could get the car to keep pulling in 6th gear even with the wind resistance.

  7. #27
    Auto Painter RyanJM's Avatar
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    Fastest I got was 139 with the factory 3.23's and then clunking and a loud howling. Haven't got past 130 with the freshly rebuilt rear and 3.73's. The 6spd conversion will be in OCt so then i plan to see what this really can do.

  8. #28
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    sweet

  9. #29
    Millennium Falcon mpfranks's Avatar
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    2000 Trans Am WS.6

    Quote Originally Posted by RyanJM View Post
    Also if you had a 6spd and 2.73 or 3.23 with enough horsepower(twin turbo for example) you could get the car to keep pulling in 6th gear even with the wind resistance.
    why would a 6speed car ever have those gears? and youre talking a lot of "if's." but what does any of this have to do with what you said about the car shifting into "reverse?" thats what the posts you typed made it seem like.

  10. #30
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    blue
    1999 trans am

    185?!!! wow!

  11. #31
    Member waldo's Avatar
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    very fast!

  12. #32
    Sleeper Brad(WS/Z0.6)'s Avatar
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    Quote Originally Posted by zeus View Post
    what have you done to your car to get it to go that fast iv been 180 on a zzr 1200 and it was screamin just to get there .
    she was definatley screamin alright...i had to gut my original LS1..cam bearings went bad. Instead of rebuilding, it was cheaper just to go with a new motor, so i ordered an LS6 crate motor from GM in michigan and had it dropped in. I upgraded all the internals also and thats it. 185 i think is about the stopping point tho..i still have the original 6-speed trans in my car (haven't had money to upgrade that yet) but it was hittin about 4700 RPMS in 6th...

  13. #33
    Member devildogws6's Avatar
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    2000 trans am ws6

    162 in my car lol

  14. #34
    Junior Member Fox Body's Avatar
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    Quote Originally Posted by peteyp22 View Post
    I got pulled over in Little Rock Arkansas at 154....i was in uniform(army) and taking my car from Ft. Hodd TX to Nashville for storage so they actually let me go but 154 was what i was clocked at with laser
    i live an hour from little rock....haha....


    but on another note i hit 150 in my mustang....pretty much stock car....it had stock gears then also so i was redlining 4th gear at this speed....it was starting to shake a lil so i shut it down....1990 gt

  15. #35
    Member waldo's Avatar
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    Quote Originally Posted by Fox Body View Post
    i live an hour from little rock....haha....


    but on another note i hit 150 in my mustang....pretty much stock car....it had stock gears then also so i was redlining 4th gear at this speed....it was starting to shake a lil so i shut it down....1990 gt
    wow, 150 in a Mustag! must have been being towed by a WS6!

  16. #36
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    1994 firebird

    going 200+ and the top flew off

  17. #37
    BLKHWK Durango's Avatar
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    BLK TA modded 12.2@113mph

    Too fast

    150 MPH OR 235KMH HERE and that was fast enough she seemed like she was still climbing I have an a4 3:23 gears

  18. #38
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    99 WS6

    hit 150 last week according to my gps in my 99 ws6...had my caddy up to 147 and i must say the caddy was much more stable above 140 lol.

  19. #39
    BLKHWK Durango's Avatar
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    BLK TA modded 12.2@113mph

    Top speed not yet

    I brought it to 235kmh so that would be around 150mph but it was still climbing fast enough for me

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