WS6 horsepower numbers

**transamdude99** · 01-22-2008, 05:10 PM

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??

**clg82** · 01-22-2008, 05:15 PM

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

**Y2KPewterSS** · 01-22-2008, 05:21 PM

Originally Posted by transamdude99

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.

**Method** · 01-22-2008, 05:25 PM

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!

**tonyjnjz** · 01-22-2008, 05:45 PM

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

**Cali Night Stalker** · 01-22-2008, 05:46 PM

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.

**transamdude99** · 01-22-2008, 05:48 PM

Originally Posted by Y2KPewterSS

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??

**Y2KPewterSS** · 01-22-2008, 06:02 PM

Originally Posted by transamdude99

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.

**Speed Psychosis** · 01-22-2008, 06:34 PM

^ 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 $$$.

**WS.SICK** · 01-22-2008, 09:23 PM

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

**tonyjnjz** · 01-22-2008, 09:36 PM

Originally Posted by WS.SICK

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

**JoshieDoom** · 01-22-2008, 10:02 PM

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.

**tonyjnjz** · 01-22-2008, 10:05 PM

Originally Posted by JoshieDoom

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)

**The_Wretched** · 01-22-2008, 10:06 PM

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.

**JoshieDoom** · 01-22-2008, 10:07 PM

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

**The_Wretched** · 01-22-2008, 10:31 PM

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.

**NvyBluMtlc02WS6** · 01-23-2008, 02:03 PM

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

**Kyle C** · 01-25-2008, 05:47 AM

I put mine on the dyno stock and a couple time after mods. Results in my sig.

**2-bowties&abird** · 01-25-2008, 06:00 AM

Originally Posted by transamdude99

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.

**blackbirdbrain89** · 01-25-2008, 07:24 AM

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