TurbochargedFuture88

Ok So the Details

1998 Pontiac Firebird 3.8L V6 5spd Auto
t70 turbo running only 9psi
gtp manifolds, custom catless exhaust
ws9 ram air intake setup
stock internals, stock fuel pump/injectors
mild 91 octane tune
fairly new Nitto DR's

2008 Cobalt SS/TC
Custom Tune
Charge Piping
K/N Filter
Lowered on Sportlines

So my friends almost done with his turbo v6 build and he should be dynoing around 320rwhp if they ever get the tune right. We met a guy the other night in a parking lot with a new cobalt ss/tc who claimed to dyno around 290 whp. They are going to race sometime this month, one from a dig, just for ***** and giggles, and then a couple from a 40 and 50 roll. Inputs? Any and all input is welcome, thanks for reading.



guess no one gives a ****. /bump

restonSS

i think it will be close. edged out to the tc bc like you said, the camaro needs to get his tune down.

flash13brandon

I don't think that the cobalt is putting down 290...

car_guy_09

Why? Its a ss/tc

flash13brandon

So lol they but down like 240 stock

06blackg85ss

iTrader: (1)

not all do, I've had a few range from 245-271whp bone stock.
should be a good race, if it only at 320whp tuned dig you'll probably get him, but the rolls he should pull you by a 1/2 car or so since the sstc is a bit lighter

cobalt_ss187

it has a tune on 91 octane im guessing and TC's get about 290hp and 330 tq on that tune from a member on here

TurbochargedFuture88

My friend's firebird just got off the dyno this morning. A little better than we had hoped for, got the tune down and final numbers were around 330rwhp 345 lb/ft @ 8 PSI. Should put him in the mid/high 12's, maybe lower mid 12's since hes running DR's now.

06SS ALL DAY

those firebirds way more than rosie odonald in Rosannne... the t/c well pwn him esspically with that anti-boost shift thing they have... because that firebird which is auto will not have boost lag either between gears... and neither should the t/c however for some reason a stick is just always quicker than an auto on a roll... remember i said roll. not at the track.

MaxVQ35DE

Turboed fireturd will win

brickerenator

i say firebird

LS2guy

After owning 2 LS1 Camaros and now my 350whp C6 I doubt your friend will be running low 12's. Also did he make sure he is using the one piece DS and did he replace the stock open differential or was it a Y87?

When you make comments like this don't ask why people gang up on you for arogance in other threads.

ralliartist

I don't think the turbo'ed firebird will come close to 12's and I also don't think it will beat the cobalt.

PhantomSS

qft

tc wins, dont waste gas on the 3600 lbs firebird

ralliartist

eh, I'm not hating cause it's a 3600lb firebird, I'm hating cause it's a v6 and it sounds like a really cheap build and 330/345 definitely isn't enough to beat a cobalt putting out 290ish/310+tq. He is on stock bottom end, stock pump, stock injectors (stock fuel supply is enough for me to know bad things couuld happen at his power level), and also he is probably on stock trans, stock rear end (open diff). This is not a thoroughly thought out build. This is a very cheap build. He isn't putting that power to the ground effeciently, and that's not even a lot of power for his vehicle's weight. And at the same time, it's too much power for that stock fuel system.

Cobalt wins.

06SS ALL DAY

sorry guys the balt is going to win... i'm sticking with that. personally those 3.8 motors in those v6 firebirds are just weak. couldnt even spin wheels in the snow(figuretivly speaking). for real my old 2001 COUGAR duratec OWNNNNNNED my good friend chris's 01 or w.e v6 firebird and he had i/h/e. chip, timing advanced etc... and oh my cougar was hmm sri and cat-back. Nothing else... how does a cougar 165 or so at the wheels pwn the HELLLL i mean pwn the hell out of a firebird like that. and yes his was an automatic. no driver mod needed and the kid could drive my car just as good as me. see the comparison i'm trying to make? i think his firebird was putting out 235-240 with the tune. it was a coupe also. and remember my cougar 165 or so at the wheels... those v6 firebirds are junk. the v6's i never said NOTHING bout those bad ass formula's or WS6's. god i would die for a WS6

just wanted to add or correct one more thing when i say putting out i mean hp not tq... tq i couldnt tell you. but he never stood a chance against my duratec and adding a 8psi untuned turbo probably would of made him WALK away from me not own me... and my cougar could never EVER keep up with a ss/sc let alone a sweet ss/tc

freakta

iTrader: (1)

what makes you think the firebird weighs soo much. just looked it up they are about 3300 pounds with the auto. i bet its only about a 300 pound difference at most. and with enough traction why couldnt it be in the 12's. stock ls1 cars are in 12's all the time and this is putting down the same power with a bit less weight from them.

i say its close but the bird will take it until its speed limiter at 118 hahahaha

ralliartist

stock shitty trans, open diff rearend, and BOOM! tells me that it won't get 12's.

freakta

iTrader: (1)

the stock tranny is very strong. i never had aproblem with mine and i beat it, well i beat it severly. has it been confirmed that he has the open diff, they did come with optional posi, y87 i think was the package with dual exhaust and all that. and he has dr's to help out.

im gonna give him the benefit of the doubt, those 3.8s arent as bad as everyone thinks they are. and the ls1's with the same hp and tq but 100lbs heavier run 12's. im just saying it could happen. but we wont know until they come back with some time slips

TurbochargedFuture88

stock differential, new fuel pump injectors

freakta

iTrader: (1)

stock doesnt mean posi or open it just means stock. which axle is it?

1gmfanatik

The 3.8 is a pretty stout motor and I wouldn't count out the Firebird, ESPECIALLY since he's RWD. From a dig, I think the Firebird is going to put some space on the Cobalt, from a roll the Cobalt may take him because of the weight difference. Also going to depend on how the turbo spooling differs on the two vehicles, the speeds they roll from, and the tuning.

FWD is MUCH more difficult to launch with, so even with the weight difference, I think the RWD has an advantage.

LS2guy

There is no way in hell your friend had a 3800 maybe a 3400 but not a 3800. I could kill Duratec V-6 Cougars in my POS daily driven 1993 Cavalier Z24 A3. My Cavalier ran a best time of 16.0 in the 1/4 mile. I then bought a 2001 Z24 M5 as a daily driver and when I raced KlugSRT-4's 2001 Firebird V6 it was a dead even race until speed limiters.

A decent 3800 with Y87 will average low 15's 100% bone stock your Cougar on the other hand might run high 16's.

06SS ALL DAY

cougar was 5 speed... and trust me go over to the cougar forums and ask around how fast a stock cougar with cat-back and sri runs in a quarter... low 15's... i'm not preaching just saying hence the reason i bought a ss/sc... anywho... tell me what the v6 3.8 motor is in the firebird cause idk. but yea a ATX cougar v6 runs 16.5 bone stock. mtx is at least a full second faster... i've raced my other friends atx cougar with my mtx and pwnd him

1gmfanatik

I have to agree here. I had a buddy let me drive his 98 Firebird 5spd around while I was home on leave back in 02 and that car scooted. She was good for AT LEAST a 15.7 bone stock. I had some kid in an Eclipse GT talking trash about how fast his car was and that his car runs 13's stock, so I asked him if he wanted to run the lil 3800 V6 Firebird?? I was walking on this dude WHILE SPINNING.

Anyways...I think the RWD will come into play as far as running from a dig. Running from a roll could be anyones race, but I may have to lean towards the Cobey for that win..