Page 1 of 8 12345 ... LastLast
Results 1 to 20 of 141

WS6 horsepower numbers

This is a discussion on WS6 horsepower numbers within the Firebird / WS6 forums, part of the Vehicle Specific category; ok, so i was reading somewhere online that '98-'02 Trans-am's are actually underrated when it comes to horsepower just like ...

  1. #1
    Member transamdude99's Avatar
    Join Date
    Apr 2007
    Location
    East Wenatchee, Washington
    Age
    30
    Posts
    139

    red
    1999 Tran-Am WS7

    WS6 horsepower numbers

    ok, so i was reading somewhere online that '98-'02 Trans-am's are actually underrated when it comes to horsepower just like an '03-'04 Cobra is underrated. i have a '99 WS6 M6 that is pretty much bone stock except a whisper lid and flowmaster exhaust and my mom has a '01 cobra that's completely stock as well. the cobra is supposed to have about 320hp and 310 trq (i believe) so the numbers are close to a TA but whenever i drive the cobra and then jump in mine, my feels so much faster. even my friends say so when they ride with me. so are TA's really underrated when it comes to power??

  2. #2
    Senior Member clg82's Avatar
    Join Date
    Feb 2007
    Location
    California
    Age
    34
    Posts
    2,453
    2000 Trans Am

    when i first ran my 2000 bone stock automatic (non ws6) against a bone stock automatic 2002 WS6 in the quarter mile i beat him by a car once and half next. not sure if this is common but i have heard that there are some factory freaks out there. also when i ran it in illinois at the track bone stock i ran 13.3. for my best run. not sure if these are typical numbers but I do have a few more mods done and live in southern cali now so i will get it dynoed in february. just my .02
    2000 Arctic White trans am, ws6 hood, ws6 air box, slp lid, slp smooth bellows, slp loudmouth exhaust,shift kit, rebuilt trans, LS6 intake, 3.73 gears, Shaner S3 p/p throttle body, and a tune . SFC. C6 ZO6 rims 18" in back 17" in front. Drilled and slotted rotors.

  3. #3
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    41
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    Quote Originally Posted by transamdude99 View Post
    ok, so i was reading somewhere online that '98-'02 Trans-am's are actually underrated when it comes to horsepower just like an '03-'04 Cobra is underrated. i have a '99 WS6 M6 that is pretty much bone stock except a whisper lid and flowmaster exhaust and my mom has a '01 cobra that's completely stock as well. the cobra is supposed to have about 320hp and 310 trq (i believe) so the numbers are close to a TA but whenever i drive the cobra and then jump in mine, my feels so much faster. even my friends say so when they ride with me. so are TA's really underrated when it comes to power??
    Yes, underrated, plus that Cobra weighs a few hundred pounds more than your TA which makes a difference as well.
    CCW SP 500s 18x10 275/35 18x11 295/35
    SLP CME with GMMG style catback
    Painted manta stripe

    Quote Originally Posted by konigandy6 View Post
    I'd rather be bi than full homo!!!!

  4. #4
    URDRSRMINE Method's Avatar
    Join Date
    Nov 2007
    Location
    Ottawa, Canada
    Age
    34
    Posts
    266

    Black
    2001 Trans AM WS6 M6

    Well my '01 WS6 is 325 HP/ 350 FT stock, and 'should' run a 13.4 1/4 mile approx, although I hear with a good driver you can hit very low 13's. We'll see next year!

  5. #5
    Senior Member
    Join Date
    Sep 2005
    Location
    rochester,ny
    Age
    38
    Posts
    2,667

    pewter
    2001 z28 lingenfelter 383

    i raced one 0-160mph one time......at a stop light getting on the best stretch of expressway in the area...0-130 i had him by about a car after that i walked all over him.......99z28 6 speed borla/lid 99 or 01 cobra unknown mods ...he got pretty far in my rearview up around 155 then as i was slowin down thru the 140s and 130s he came wizzin by me again.......ricer fly by!!!! lol i was laughin

  6. #6
    LS1 Member Cali Night Stalker's Avatar
    Join Date
    Dec 2007
    Location
    San Jose, CA
    Posts
    144

    Black
    2002 WS6

    My 02 WS6 has just intake exhaust and the free mods, n i raced my boy recently he has a 02 Mustang GT wit full bolt-ons,drag radials, roll cage, short shifter,3.73gears, and a tune he dynoed at 328hp 346tq i beat him by 2 cars n pulling so u should have about 350hp or more to the wheels.

  7. #7
    Member transamdude99's Avatar
    Join Date
    Apr 2007
    Location
    East Wenatchee, Washington
    Age
    30
    Posts
    139

    red
    1999 Tran-Am WS7

    Quote Originally Posted by Y2KPewterSS View Post
    Yes, underrated, plus that Cobra weighs a few hundred pounds more than your TA which makes a difference as well.
    so are the 325 HP/ 350 FT numbers at the wheels? if so then what would it be at the crank??

  8. #8
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    41
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    Quote Originally Posted by transamdude99 View Post
    so are the 325 HP/ 350 FT numbers at the wheels? if so then what would it be at the crank??
    GM advertised the fbodies with an LS1 anywhere from 310 all the way up to 325. That was at the crank advertising. Realistically, it was about 350 at the crank and on average about 310 at the wheels. GM underrated the HP of the fbodies for whatever reason anyone wants to debate on.

  9. #9
    Member Speed Psychosis's Avatar
    Join Date
    Dec 2007
    Location
    Virginia
    Age
    27
    Posts
    499

    Red
    98 T/A M6 w/lid and LM1

    ^ with him. People stock usually dyno over 300 horsepower. And at the crank you typically (for any car) have around 15-20% more power. I'm not sure if Cobras are really underrated. I'm not sure why Ford would do that, but GM underrated these cars to make the Corvette and GTO seem faster and worth the extra $$$.

  10. #10
    Junior Member WS.SICK's Avatar
    Join Date
    Apr 2006
    Location
    Pomona California
    Age
    33
    Posts
    97

    Pewter
    2000 WS.6 T/A

    im pretty sure the 01s were fixed --- but the 2000 cobras were only pushing about 280 flywheel- I raced one back in the day when they first came out.. i had a 93 lt1 formula hardtop auto- from a stop to about 80 i had him by 2 cars or so... i think there was some problem with the exhaust manifolds or heads ... something of that sorts

  11. #11
    Senior Member
    Join Date
    Sep 2005
    Location
    rochester,ny
    Age
    38
    Posts
    2,667

    pewter
    2001 z28 lingenfelter 383

    Quote Originally Posted by WS.SICK View Post
    im pretty sure the 01s were fixed --- but the 2000 cobras were only pushing about 280 flywheel- I raced one back in the day when they first came out.. i had a 93 lt1 formula hardtop auto- from a stop to about 80 i had him by 2 cars or so... i think there was some problem with the exhaust manifolds or heads ... something of that sorts
    you mean 99 cobras.. ..they didnt make a 2000

  12. #12
    Impounded
    Join Date
    Oct 2007
    Location
    Beaver Dam KY
    Posts
    7,746

    79 T/A -91 Firebird
    1998 Trans Am -Oynx Black

    My buds got 03(maybe) SVT cobra. had a ford performance dohc v8 installed after he blew the factory engine... got headers MAF sensor and TB and its a 5 speed and it seems like his car is equal to mine.

  13. #13
    Senior Member
    Join Date
    Sep 2005
    Location
    rochester,ny
    Age
    38
    Posts
    2,667

    pewter
    2001 z28 lingenfelter 383

    Quote Originally Posted by JoshieDoom View Post
    My buds got 03(maybe) SVT cobra. had a ford performance dohc v8 installed after he blew the factory engine... got headers MAF sensor and TB and its a 5 speed and it seems like his car is equal to mine.
    NOT an 03...the 03/04 cobras ( also called terminators) are definitly faster than a stock ls1 and there an iron block supercharged 4.6L ....my guess is your buddy has an 01...99 percent sure there a 6 speed as well ( 03/04s)

  14. #14
    Member The_Wretched's Avatar
    Join Date
    Jan 2008
    Location
    Miami, FL
    Age
    33
    Posts
    378
    2002 CETA 6M COUPE

    the 01 cobra is a light year over the 99... trust me... i USED to be a Ford guy... the only cars Ford have successfully underrated were the 2003-2004 Mach 1s. They're at 305-310hp crank... they put about 280 to the wheels. Other than that... every car is usually dead on. Cobras (03-04) may fall in there... but no. They weigh like hell and suffer ridiculously from heatsoak.

    I definately will say our LS1 F-bodies put 350 to the crank... EASY!!!!

    Anyone who doesn't believe needs to run you... they'll believe after.

    oh yeah... the 99 Cobra is perhaps Fords biggest embarrassment. That's why the Cobra went into hibernation for a year and came out with a new Engine in 2001. they were OVERRATED by Ford... and well... enough said.

  15. #15
    Impounded
    Join Date
    Oct 2007
    Location
    Beaver Dam KY
    Posts
    7,746

    79 T/A -91 Firebird
    1998 Trans Am -Oynx Black

    His is a 5 speed...and its a dohc v8.. i know that much.. i put the TB on...

  16. #16
    Member The_Wretched's Avatar
    Join Date
    Jan 2008
    Location
    Miami, FL
    Age
    33
    Posts
    378
    2002 CETA 6M COUPE

    then it's a 2001 or 1999. Safe to say 2001. The 2003-2004 Terminators are 6 Speed ONLY. And yeah... they are faster... but remember they need a Supercharger to be faster... just saying... lol.

  17. #17
    Member
    Join Date
    Oct 2006
    Location
    Florida
    Age
    41
    Posts
    262

    Navy Blue Metallic
    2002 Trans Am WS6

    Well, haven't ran an '03-'04 cobra, but I can tell you that the Mach 1's don't stand a chance...LMAO!

  18. #18
    Member
    Join Date
    Dec 2005
    Location
    NC
    Posts
    163

    primer
    1973 Camaro

    I put mine on the dyno stock and a couple time after mods. Results in my sig.
    '73 Plain Jane Camaro, Gen III, T56
    '02 WS6, M6
    All gone but not forgotten

  19. #19
    Member 2-bowties&abird's Avatar
    Join Date
    Jan 2008
    Location
    lancaster,va.
    Age
    37
    Posts
    505

    cam/lt headers
    blue 2000 ws6 m6

    Quote Originally Posted by transamdude99 View Post
    ok, so i was reading somewhere online that '98-'02 Trans-am's are actually underrated when it comes to horsepower just like an '03-'04 Cobra is underrated. i have a '99 WS6 M6 that is pretty much bone stock except a whisper lid and flowmaster exhaust and my mom has a '01 cobra that's completely stock as well. the cobra is supposed to have about 320hp and 310 trq (i believe) so the numbers are close to a TA but whenever i drive the cobra and then jump in mine, my feels so much faster. even my friends say so when they ride with me. so are TA's really underrated when it comes to power??
    i read somewhere if you divide rwhp by .85 that will give you your fwhp. so if you divide 300 rwhp as an average of our cars by .85 it comes out to be 352 fwhp. i'm not swearing by this but when you do the math it's damn close.

  20. #20
    🤔 11s. blackbirdbrain89's Avatar
    Join Date
    Sep 2007
    Location
    hagerstown, mercersburg
    Age
    27
    Posts
    1,844

    black trans am
    2000

    i have ran more then one 03-04 corbra ... they will eat a ls1 on a dyno and still lose a race .... its s/c with stock pullys his power band is in the low end ...... 03-04 corbras have the same gears and trans as us u know that thing we break .... t56 rated for 450 lbs of tq as my car sits ts got p&p tb maf slp lid and magnaflows along with free mods and short shifter ... i beat ever 03-04 s/c corbra i have raced ... i get them by a car and .5 by the end of 1st gear ... corbras can lunch thery independnt rear suck kinda like a gto ... then ls1's pull the hell outta the high end ... un less the corbra has pulleys a m6 ls1 car shuld win .... a better race woulod be a ls2 gto vs a 03-04 corbra

Page 1 of 8 12345 ... LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Formula WS6 vs Trans Am WS6?
    By TransAMrit in forum Firebird / WS6
    Replies: 23
    Last Post: 02-02-2016, 04:00 PM
  2. WS6...or Not???
    By TopForm11 in forum Firebird / WS6
    Replies: 42
    Last Post: 12-28-2007, 08:40 AM
  3. 2000 WS6 Trans Am 6 Spd. only 14k miles
    By at100plus in forum Vehicles For Sale / Trade
    Replies: 23
    Last Post: 10-17-2007, 03:27 PM
  4. Tr230 dyno numbers 98 heads=bad numbers?
    By phoenix1987 in forum Dyno Information
    Replies: 7
    Last Post: 09-11-2007, 09:33 AM
  5. 1998 H/C 11 sec T/A WS6 CHEAP!!!!! PLUS PARTS!
    By Auctane in forum Vehicles For Sale / Trade
    Replies: 6
    Last Post: 09-07-2005, 05:27 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •