Pontiac G8 2008-2010 - Which is faster: A4 LS2 GTO or A6 G8 GT?

Stock to stock, 1/4 mile. Anyone with actual experiences? Curious for possible future project.

GTO is faster.

The LS2 GTO had 400 hp vs 360 hp and the G8 GT is a bit heavier.

MOST G8 GT were in the mid to high 13 range while MOST A4 GTO were in the 13.0 to 13.5 range. I think the average GTO would be around 13.3 and the average G8 GT would be around 13.70.

Actually I had an A4 2005 GTO and I now own a G8 GXP and I would put the GTO right in the middle of a G8 GT and a G8 GXP.

This is assuming all cars were bone stock.

i agree with old goat very few G8 GTs were faster than 13.5 bone stock. As far as a race project goes though its whatever you want.

I raced a manul ls2 gto with open headers. And he pulled me a little bit. Granted i had 3 people in the car and was in the wrong gear. But it was fun. So im getting a cam now

Gto is definately faster but with just a tune the much heavier g8 is just as fast, I had an06 gto and sold it to get the g8 when my first child came along

The 6 speed auto in the G8 offset's the difference in weight almost over the 4 speed auto GTO. From a dig I would say the GTO is faster stock for stock, but from a roll the G8 is faster then the auto GTO. Now a 6 speed manual GTO is faster all around over the G8 period.
Tate

Just mod away and it wont make a difference!! LOL

but from a roll the G8 is faster then the auto GTO.

I'm not sure about that. My G8 is almost dead even with my father's 2004 M6 GTO from a roll, with the GTO just edging me out up top. I would think an A4 LS2 GTO would beat an M6 LS1 GTO in any kind of race.

Thats a pretty good question.
Personally i think the G8 GT is very slow, well mine is and its 100% stock. People say 0-60 between 5-5.6. I'm thinking its slower than that.

Thats a pretty good question.
Personally i think the G8 GT is very slow, well mine is and its 100% stock. People say 0-60 between 5-5.6. I'm thinking its slower than that.

Mine is modded and its still slow...

Mine is modded and its still slow...

I agree. I was very excited about the car when I first got it but I was one of those people stuck between a G8 and a Corvette. Neither provides the optimal solution. If it was faster and lighter I would enjoy the car more.

Working on that...

GTO is faster.

The LS2 GTO had 400 hp vs 360 hp and the G8 GT is a bit heavier.

MOST G8 GT were in the mid to high 13 range while MOST A4 GTO were in the 13.0 to 13.5 range. I think the average GTO would be around 13.3 and the average G8 GT would be around 13.70.

Actually I had an A4 2005 GTO and I now own a G8 GXP and I would put the GTO right in the middle of a G8 GT and a G8 GXP.

This is assuming all cars were bone stock.

Agree with this.

My grandmothers G8 went 13.7-9 at the track at best and my 04 GTO when I had it was around a 13.4. We bought it new in 09 and I actually had plans for it, but after driving it and taking it to the track.. I decided it was best to stick with my SS.

I agree. I was very excited about the car when I first got it but I was one of those people stuck between a G8 and a Corvette. Neither provides the optimal solution. If it was faster and lighter I would enjoy the car more.

Working on that...

I just get used to things too fast... I get more power and a week later it feels slow again. I already had a vette so there was no desire to go that route again.

I ran a couple gto's when mine was pretty much stock and running 13.60's. They are close, but I was able to 60' better and didn't get beat by either at the track, we were both within a tenth or so.

..........Now a 6 speed manual GTO is faster all around over the G8 period.


From what I remember looking at the top 10 bone stock cars back on LS1GTO.com (this was a few years ago), most of the top 10 cars were auto. It would be hard to search now a days as most GTO's are modded.

Even the Pontiac brochure indicated the auto was faster in the quarter by a tenth.

I just get used to things too fast... I get more power and a week later it feels slow again. I already had a vette so there was no desire to go that route again.

nods. I am cooking something up right now. We will see how what it does for me.

my g8 runs 11's.....I would personally go with the g8 because no one has broken into the 9's as of yet. I'm hoping I can throw a maggie on my car and do a few other things and be one of the few in the 9's next year!

my g8 runs 11's.....I would personally go with the g8 because no one has broken into the 9's as of yet. I'm hoping I can throw a maggie on my car and do a few other things and be one of the few in the 9's next year!

Good luck... 11's are easy, 9's takes some serious work!
There aren't even that many in the 10's which shows how much work it takes. But I guess with unlimited funds anything is possible. Gonna take a built engine, built trans, built rear, a big blower to move 4k lbs into single digits! Looking at an easy $20k just in basic stuff not including the details, safety, etc..

I'm working on getting my car there. I'm slowly upgrading everything thats needed to get there... finished the roll bar/wheel studs/misc safety stuff, finishing up the suspension now, beefing up the drivetrain to take more power, soon be time for more power. Since it appears it takes at least 550-600whp to even run high 10's from those that have done it, 9's is going to take an easy 750+whp.

Just take a look at how much more horsepower you have to have to move a car our size into the 9's:

3000 pounds: 692 hp
3200 pounds: 738 hp
3400 pounds: 784 hp
3600 pounds: 830 hp
3800 pounds: 876 hp
4000 pounds: 922 hp

Yup. Plus a maggie easily adds 60 lbs to the front of the car. It comes in 2 boxes weighting 80 and 40 lbs.

SLOW SEDAN:

Do you have a current list of all that is done to your car or a link?
I think I asked but it was a long time ago. Haven't checked up on what you big dogs are running recently.

Pretty simple... CAI, FAST LSXR, decent cam/dod delete, ported/milled/valve job heads, FTI 3600, Kooks 1 7/8", UDP, zex wet kit, drag radials.

I just get used to things too fast... I get more power and a week later it feels slow again. I already had a vette so there was no desire to go that route again.

aint that the truth lol

Just take a look at how much more horsepower you have to have to move a car our size into the 9's:

3000 pounds: 692 hp
3200 pounds: 738 hp
3400 pounds: 784 hp
3600 pounds: 830 hp
3800 pounds: 876 hp
4000 pounds: 922 hp

Ive put my old 3600 lb car (with me in it) in the mid 9s with a hair over 700 whp :D

Ive put my old 3600 lb car (with me in it) in the mid 9s with a hair over 700 whp :D

830hp - drivetrain loss = roughly 700whp. Thanks for verifying my post!

Good luck... 11's are easy, 9's takes some serious work!
There aren't even that many in the 10's which shows how much work it takes. But I guess with unlimited funds anything is possible. Gonna take a built engine, built trans, built rear, a big blower to move 4k lbs into single digits! Looking at an easy $20k just in basic stuff not including the details, safety, etc..

I'm working on getting my car there. I'm slowly upgrading everything thats needed to get there... finished the roll bar/wheel studs/misc safety stuff, finishing up the suspension now, beefing up the drivetrain to take more power, soon be time for more power. Since it appears it takes at least 550-600whp to even run high 10's from those that have done it, 9's is going to take an easy 750+whp.

Just take a look at how much more horsepower you have to have to move a car our size into the 9's:

3000 pounds: 692 hp
3200 pounds: 738 hp
3400 pounds: 784 hp
3600 pounds: 830 hp
3800 pounds: 876 hp
4000 pounds: 922 hp

Completely agree.

Nobody ever considers anything except for the engine...

when my g8 had 700 miles on it i ran a 05 6 speed manual. heres the slip

mine
13.74 101.65 2.08 60ft. at 330 5.8553

his
13.47 106.23 2.18 60ft at 330 5.856


i added the 330 we were dead even till then.

my g8 runs 11's.....I would personally go with the g8 because no one has broken into the 9's as of yet. I'm hoping I can throw a maggie on my car and do a few other things and be one of the few in the 9's next year!

Respectfully, I dont think any G8 with a Maggie will ever make it close to 9's... I would say 10.5 at very best....

the only G8's that would ever make it to 9's would have to be a twin turbo setup or a Large Procharger... F1 or bigger... Prochargers and turbos are the way to go for the strip..... (just my opinion obviously..) (but I dont think many people will argue that the turbos and prochargers are the best for the strip.... not many..... )

Respectfully, I dont think any G8 with a Maggie will ever make it close to 9's... I would say 10.5 at very best....

the only G8's that would ever make it to 9's would have to be a twin turbo setup or a Large Procharger... F1 or bigger... Prochargers and turbos are the way to go for the strip..... (just my opinion obviously..) (but I dont think many people will argue that the turbos and prochargers are the best for the strip.... not many..... )


I agree

Respectfully, I dont think any G8 with a Maggie will ever make it close to 9's... I would say 10.5 at very best....

the only G8's that would ever make it to 9's would have to be a twin turbo setup or a Large Procharger... F1 or bigger... Prochargers and turbos are the way to go for the strip..... (just my opinion obviously..) (but I dont think many people will argue that the turbos and prochargers are the best for the strip.... not many..... )

Or large CI on spray... :zzz:

Or large CI on spray... :zzz:

Yup :D

Respectfully, I dont think any G8 with a Maggie will ever make it close to 9's... I would say 10.5 at very best....

the only G8's that would ever make it to 9's would have to be a twin turbo setup or a Large Procharger... F1 or bigger... Prochargers and turbos are the way to go for the strip..... (just my opinion obviously..) (but I dont think many people will argue that the turbos and prochargers are the best for the strip.... not many..... )

I agree, an F-1A can get 3500lb 4th gen f bodys into the 8's, it should get a G8 into the 9's. Bob

Respectfully, I dont think any G8 with a Maggie will ever make it close to 9's... I would say 10.5 at very best....

the only G8's that would ever make it to 9's would have to be a twin turbo setup or a Large Procharger... F1 or bigger... Prochargers and turbos are the way to go for the strip..... (just my opinion obviously..) (but I dont think many people will argue that the turbos and prochargers are the best for the strip.... not many..... )

i agree 100%

I agree. I was very excited about the car when I first got it but I was one of those people stuck between a G8 and a Corvette. Neither provides the optimal solution. If it was faster and lighter I would enjoy the car more.

Working on that...

G8 + Corvette = CTS-V

Problem solved.

G8 + Corvette = CTS-V

Problem solved.
I have the supercharger. I am just lacking the suspension and wider tires....

A friend of mine had a bone stock Auto 2005 GTO and he was only able to manage a best time of 14.0 Granted he had heavy wheels and was on street tires so maybe a 13.6-13.7 with good tires and lighter wheels. So I would say it's all about who knows where their car likes to be launched on a stock stall and gets it to hook.

I have the supercharger. I am just lacking the suspension and wider tires....

That car in your sig needs a wash

That car in your sig needs a wash

I am going after this look: http://www.ls1tech.com/forums/racers-lounge/1421462-100k-rat-rod-5th-gen.html

:bang:

I agree, an F-1A can get 3500lb 4th gen f bodys into the 8's, it should get a G8 into the 9's. Bob

Give me one and I'll make it happen!!!

give me one and i'll make it happen!!!

bang!

I am going after this look: http://www.ls1tech.com/forums/racers-lounge/1421462-100k-rat-rod-5th-gen.html

:bang:

almost there

Well. I wanted to be the best at something and it probably wasn't gonna be the fastest G8. I am going for dirtiest and most miles. :D

Ive been to these states in my G8:
LA MS AR TN KS MO OK NM TX AZ

Well. I wanted to be the best at something and it probably wasn't gonna be the fastest G8. I am going for dirtiest and most miles. :D

Ive been to these states in my G8:
LA MS AR TN KS MO OK NM TX AZ

Not a bad start... I got VA MD DC DE NJ NC SC GA FL OH IN PA IL NY WV MI

FL, GA, SC, NC, VA, WV, KY, AL, MISS, LA, PA. I think that's it.

Glad to know all the G8s aren't under car covers most of the time!


Is that tru trac carrier for the stock diff or did you go with a 9, wreckwriter?

I owned an A4 06 GTO that I traded for my A6 09 G8 GT.

Stock GTO went 13.142 @ 105.96 DA 1558! (60' 2.008)

I've never ran the G8 but enough of you have. So take a stock slip from someone running similiar DA to compare. Guarantee you won't find one running 13.1s in 1500+ DA

Side note, GTO went 12.824 @ 108.85 with only a K&N panel filter, h-pipe and tune. DA 558, this on BFG KDWs.

I owned an A4 06 GTO that I traded for my A6 09 G8 GT.

Stock GTO went 13.142 @ 105.96 DA 1558! (60' 2.008)

I've never ran the G8 but enough of you have. So take a stock slip from someone running similiar DA to compare. Guarantee you won't find one running 13.1s in 1500+ DA

Side note, GTO went 12.824 @ 108.85 with only a K&N panel filter, h-pipe and tune. DA 558, this on BFG KDWs.

Hasnt the fastest stock G8 gone 12.8@109 granted that was a GXP but it was an A6! Numerous GT's with boltons only have gone 12.1's at about the same MPH 110-111. Guys are running high 12's with an intake and superchips tune so really its all about the same.

Hasnt the fastest stock G8 gone 12.8@109 granted that was a GXP but it was an A6! Numerous GT's with boltons only have gone 12.1's at about the same MPH 110-111. Guys are running high 12's with an intake and superchips tune so really its all about the same.

The OPs question was about a GT not GXP. The GXPs put down far more rwhp stock than the GT. 1500+ DA is not good weather either. I'll bet any G8s close to that time are in under 500 DA.

My GTO only had a filter, not an intake. The H pipe was added to the stock exhaust. I comment because I've owned both cars in question and it is not even close when stock. I drove both off the showroom floor bone stock.
The GTO with the above mentioned mods plus an UDP and skinnies/ETs went 12.672 @ 109.95 DA 1703 60' 1.947. No headers or CAI, etc. With even 1,000 ft better DA and another tenth off the 60', it would have gone 12.3s or better. All without headers, gears, etc.

I haven't run my G8, but when I do, I really hope it is near the 12s

To tell you the truth I haven't had one to run me, but keep in mine a G8 GT will do just fine against the GTO all the way around. I was running with a SC tune and a CAI 13.3 1/4 times and that's with 2.92 rear end.

LS2 GTO definitely