Pontiac GTO 2004-2006 - hp question

hey guys im looking into getting a 2004 gto A4 this spring or summer, i want to know what kind of power it is going to take to get it to run low 12s. I currenty have a Trans am, i just bought a cam and ls6 intake and am going to buy heads very soon. My goal is to put all of these on the GTO, along with the H/C/I i would also buy a stall, DRs and full exhaust, will this kind of power and mods get me to run at least low 12s? goal is high 11s, but with the extra weight low twelves would be good too. thanks everybody

hey guys im looking into getting a 2004 gto A4 this spring or summer, i want to know what kind of power it is going to take to get it to run low 12s. I currenty have a Trans am, i just bought a cam and ls6 intake and am going to buy heads very soon. My goal is to put all of these on the GTO, along with the H/C/I i would also buy a stall, DRs and full exhaust, will this kind of power and mods get me to run at least low 12s? goal is high 11s, but with the extra weight low twelves would be good too. thanks everybody

there are some that are running 11's with just bolt ons. i am not one of them i am running low 12's with just a cam but i am also an ls2. with h/c/i should safely get you to your goal

cool thanks, and the ls1 in the goat is the same as in my trans am right? are all the parts compatible?

motor is the same cams and heads all internals will swap over from other ls1's

sweet, the cam i have is a 225/229 580/590 on 114. with the LS6 intake, and im looking into ported ls6 heads, who knows

GTO already has the LS6 intake. Its the same engine that was in the 01-02 F-Body. So you don't have to swap intakes.

Long tubes, stall, tires, your cam, and a tune should get you there. At least come close.

no o4's or f-body had a ls6 intake with out haveing an ls6 in it. if it has an ls1 an ls6 intake is an upgrade

no o4's or f-body had a ls6 intake with out haveing an ls6 in it. if it has an ls1 an ls6 intake is an upgrade

Wrong, during the production(01-02) they ran out of ls1 intakes so they started using ls6 intakes

Wrong, during the production(01-02) they ran out of ls1 intakes so they started using ls6 intakes

i didn't know i thought the just put the ls6's in them. i know some ws6's came with a ls6 or am i wrong?

Every 04 came with a LS6 intake on it ... my car is a Dec 03 build and I sold my LS6 intake here when I bought my 90mm Fast.

Also there are no 04s running 11s with just bolt ons.

...Man this thread has some bad info in it.

If you want to go 11s NA you will need a CAI, LTs, better flowing heads, bigger cam and upgrade to 90mm TB and intake. Also you'll need to get a higher stall. 3.73 gears should lock getting into the 11s. ...your cam looks like it would work fine, you don't need a hugh stick. ...and even with this you are going to have to drop a shit load of weight.

Every 04 came with a LS6 intake on it ... my car is a Dec 03 build and I sold my LS6 intake here when I bought my 90mm Fast.

Also there are no 04s running 11s with just bolt ons.

...Man this thread has some bad info in it.

If you want to go 11s NA you will need a CAI, LTs, better flowing heads, bigger cam and upgrade to 90mm TB and intake. Also you'll need to get a higher stall. 3.73 gears should lock getting into the 11s. ...your cam looks like it would work fine, you don't need a hugh stick. ...and even with this you are going to have to drop a shit load of weight.

Regarding an 04 going high 11's in bolt on form has not been done as far as I've seen. A few F-bodies did it I beleive, but there were gutted, with different transmissions and slicks. Maybe a LS2 GTO might be able to do it, again in a gutted form. A form that does not even resemble show room or comfort quality that the GTO portrays.

he is a link you call them a liar i am not http://www.ls1gto.com/forums/member.php?find=lastposter&t=249595 and as thay say they are the "Record Holder: First & only 11 second bolt on LS1 GTO (as of 3/22/08)" here is the fastest time slip i could find from them
R/T- .545
60ft- 1.591
330ft- 4.686
1/8-7.317
1/8 mph- 92.87
1000ft- 9.593
1/4- 11.508
Mph- 118.28

so i am sorry it is mid 11's

o and this http://automotive.speedtv.com/article/speed-original-pinks-all-out-features-all-walks-of-life/

That car has heads on it

sorry i can't find were it says that. can you show me the link?

Only thing I saw was the 11.98 pass at englishtown on the 23rd march.

still an 11 and that was when she set the Record. i am looking for the actual time slip. right now i just got someone saying they seen the 11.5 pass. actualy they say the new record is 11.47 he is the link you can think what you think of it http://www.ls1gto.com/forums/showthread.php?t=280712&highlight=melissa+pb

It's a head/cam car now. The 11.98 bolt on is more impressive IMO.

i was just looking and she might have changed some stuff. ya looks like the fastest h/c/i gto is runing a 10.9 from what can see

That 11.983 run was with a -1400 DA which corrects to 12.1 run still impressive but the car at that time wouldn't have run that 11 anywhere else.

...I think the fastest LS1 NA is about a 10.6. Also run in NJ

to me what is on the slip is what it ran. if you start correcting for track conditions were does it stop?

just to clear things up an 04 ls1 gto has a ls6 intake, and have ran high 11's with just bolt ons

well thanks guys, im not really hell bent on running mid 11s NA, any 11 sec time slip would work. I really just want to do CAI, FUll Exhaust, Stall, Cam and Heads and possibly intake. SO whatever this does will make me happy lol, and perhaps nitrous if i want to go faster

just to clear things up an 04 ls1 gto has a ls6 intake, and have ran high 11's with just bolt ons

That is definitely not going to be the norm.

i know it is not the norm i have yet to have a 11 with my cam only ls2.

Melissa's LS1 did break 11's with bolt on's but also in great DA. middle of summer not close at the events I was present.
the 11.50 runs were at Cecil County and ATCO last fall when it was great air, and they had changed heads/cam and other stuff. 90/10 front stuts too so it hooks a lot better than most GTOs

I know my car ran high 11's in normal air, with 430/430whp and wtq.
Stock gears, 255 drag radials, stock suspension other than 5/16 raise rear pedders springs, full weight. M6 and high 1.6 sixty foots. So if you can get close to 400/400 with an auto I think you'll be in the 11's

Melissa's LS1 did break 11's with bolt on's but also in great DA. middle of summer not close at the events I was present.
the 11.50 runs were at Cecil County and ATCO last fall when it was great air, and they had changed heads/cam and other stuff. 90/10 front stuts too so it hooks a lot better than most GTOs

I know my car ran high 11's in normal air, with 430/430whp and wtq.
Stock gears, 255 drag radials, stock suspension other than 5/16 raise rear pedders springs, full weight. M6 and high 1.6 sixty foots. So if you can get close to 400/400 with an auto I think you'll be in the 11's

you are right about the mid 11's with heads and cam. but i would still say that 90/10's would still be a bolt on

hey guys im looking into getting a 2004 gto A4 this spring or summer, i want to know what kind of power it is going to take to get it to run low 12s. I currenty have a Trans am, i just bought a cam and ls6 intake and am going to buy heads very soon. My goal is to put all of these on the GTO, along with the H/C/I i would also buy a stall, DRs and full exhaust, will this kind of power and mods get me to run at least low 12s? goal is high 11s, but with the extra weight low twelves would be good too. thanks everybody


450rwhp and a "Decent" driver will go high 11's

400rwhp will go mid/low 12's


Both from experience

why are you guys so focused on "Bolt-ons" ???
the OP jus twants to go low 12's to High 11's


my Cam is Bolted in,
my Heads are Bolted on,
so is my nitrous kit ;)

I still go mid 11's ;)

why are you guys so focused on "Bolt-ons" ???
the OP jus twants to go low 12's to High 11's


my Cam is Bolted in,
my Heads are Bolted on,
so is my nitrous kit ;)

I still go mid 11's ;)
cuz i said it and no one would let it die at that. and if you go that route a stroker kit is bolted in a superchager is bolted on and my 9" is bolt on and so forth.

450rwhp and a "Decent" driver will go high 11's

400rwhp will go mid/low 12's


Both from experience

400 can go mid 11's:secret2:

I run 12.0 to 12.1 in 85-95 degrees and the time drops as the temp drops. ...thats NA. Come mid August I'll turn an 11 every time.

400 can go mid 11's:secret2:


with a better driver than I.... :emb:
(probably a Stalled A4 with suspension mods)

there are some that are running 11's with just bolt ons. i am not one of them i am running low 12's with just a cam but i am also an ls2. with h/c/i should safely get you to your goal

bs on the 11's. you need h/c, suspension mods, stall, 125 shot and you will see mid to low 11's.

with a better driver than I.... :emb:
(probably a Stalled A4 with suspension mods)


Yank 3600, 1/2" Drag springs and Drag bags that I never put any air in.

I doubt it on the better driver.

bs on the 11's. you need h/c, suspension mods, stall, 125 shot and you will see mid to low 11's.


You're kidding on needing all that shit just to run mid 11's right?:confused:

bs on the 11's. you need h/c, suspension mods, stall, 125 shot and you will see mid to low 11's.

i think the OP is going to have heads. and if you just look on the 1st page you will see that it has been done. someone has ran a high 11 in a 2004 ls1 gto with just bolt ons that is a fact

bs on the 11's. you need h/c, suspension mods, stall, 125 shot and you will see mid to low 11's.


only if you suck as a driver :secret2: