G8 GT vs. Cobra

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Mine ran a 12.99 with cai and canned tune and 12.85 cai, canned tune, headers. There have been some with dyno tunes cai headers running 12.6ish.

I haven't seen any stock Cobras run but the pullied ones run high 11's

Maybe with a mediocre driver. There are dozens of Pullied cobras running mid 11's, and trapping very close to 120, if not higher.

A GREAT driver, would be a totally different story.

Just thought I'd let you know.

High 11s is maybe the average of pullied cobra's with so/so drivers. That is fair. Either way, 1/2-1 second difference = several car lengths and a bag of chips.
 

Devilish34

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Maybe with a mediocre driver. There are dozens of Pullied cobras running mid 11's, and trapping very close to 120, if not higher.

A GREAT driver, would be a totally different story.

Just thought I'd let you know.

High 11s is maybe the average of pullied cobra's with so/so drivers. That is fair. Either way, 1/2-1 second difference = several car lengths and a bag of chips.

The driver mod is the best mod
 

00BlackGT

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ok... let's see if anyone recognizes this car. (In the High Point, NC area), there were witnesses to this race but it is hard for me to believe there are still stock Cobra's out there that race lol.

it's a sucky cell pic. that my friend sent to me.

img00018v.jpg
 

CLN 6R

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ic where yall are coming from.

what got me is, I just dont see bolt on G8s dipping into the 12s but i do see stock cobras in the 12s all the time.

Should i post a pic of said cobra to see if anyone here owns it?
My buddy's GT ran a 12.9 with and intake, midpipe, and he tuned it himself with HP Tuners.
 

Grabber

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My buddy's GT ran a 12.9 with and intake, midpipe, and he tuned it himself with HP Tuners.

Did he use a laptop, or just plug a handheld tuner in and push a button, lol?

So, 3 bolt-ons and they are breaking 12's?

Here, a local guy with a G8, running nitrous, intake, tune and exhaust, ran a best of 12.4 @ 107 with a 1.66 60ft on DR's.

He also has an auto, and ran in good air. How are these guys pulling mid 12's with 1-2 mods max?
 

Slizzo

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Did he use a laptop, or just plug a handheld tuner in and push a button, lol?

So, 3 bolt-ons and they are breaking 12's?

Here, a local guy with a G8, running nitrous, intake, tune and exhaust, ran a best of 12.4 @ 107 with a 1.66 60ft on DR's.

He also has an auto, and ran in good air. How are these guys pulling mid 12's with 1-2 mods max?

HP Tuners is a laptop software suite for tuning GM cars.

These cars take mods very well, they are very restricted from the factory. An L76 in these cars is basically an LS2 block, L92 heads, and an LS3 intake manifold. Also has "DoD" or "AFM" specific lifters on 4 cylinders to allow the 8cyl-4cyl shutoff mode.


Factory rated at 355HP-361HP (2009-2008 figures respectively) at the crank. Many G8 GTs dyno ~300HP to the wheels in stock form, but that is on a 1.15:1 gear (4th).


These cars get up and move pretty well, surprise quite a few cars on the road with one. They certainly move out pretty well for their weight.


But yes, a tune alone will generally net ~30HP to the wheels on a dyno on these cars. Headers really seem to wake these cars very well.
 

Drewzilla

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ok... let's see if anyone recognizes this car. (In the High Point, NC area), there were witnesses to this race but it is hard for me to believe there are still stock Cobra's out there that race lol.

it's a sucky cell pic. that my friend sent to me.

img00018v.jpg

Hmm I think Ive seen that car. Maybe not. Most likely if the car is lowering or has aftermarket wheels then it's got some bolt ons. Not always but it's very likely.
 

10thSVT_03

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These cars really move out with some small bolt ons.. Buddy of mine just bought a black one and when he gets done with the exhaust tune etc I am curious what he will run.. But as stated these cars are moving out...
 

mrbigjeep

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they are easily in the twelves with the mods listed...i can believe it if it was stock...but the guy in the cobra would have to be kinda bad for it to be 2+ lengths
 
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00BlackGT

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yea... so who wants to come out and play? His brother owns a C6Z, bone stock.... and soon we will have their 2010 camaro back on the road (Mast motorsports powered)
 

Doc GTO

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When i look up specs, it says 6.0 for the gt and 6.2 for gxp.

But it says l76 for gt and ls3 for 6.2

so the 6.0 is not an ls2? What is th l76, different heads or something?

L76 has DOD with L92 heads. My DOD currently resides in my basement in a cardboard box

Correct! The L76 is an LS2 with better heads and a DOD cam and software. Swap out the cam and tune it and you have one mean mojo!
 

Deuuuce

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Full bolt-ons and tune can trap 111mph so if the speed didn't suit the Cobra's gearing (or his driving), its very plausible. After all, stock Cobras trap 113/114 at best, right? Oh, I forgot about the rumored 115mph....

plausible for sure, especially if the guy in the cobra wasn't a great driver. I love those g8's, the chevy re-badged version isn't nearly as attractive though.

You saw the Chevy version? It's actually a longer wheelbase car for police duty only.

Here, a local guy with a G8, running nitrous, intake, tune and exhaust, ran a best of 12.4 @ 107 with a 1.66 60ft on DR's.

He sucks horribly or he's lying about "something". Stockers trap 105mph.
 

CLN 6R

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Did he use a laptop, or just plug a handheld tuner in and push a button, lol?

So, 3 bolt-ons and they are breaking 12's?

Here, a local guy with a G8, running nitrous, intake, tune and exhaust, ran a best of 12.4 @ 107 with a 1.66 60ft on DR's.

He also has an auto, and ran in good air. How are these guys pulling mid 12's with 1-2 mods max?
Laptop.

He got it dyno'd a few weekends ago and put down 345hp/361 tq.

[ame="http://www.youtube.com/watch?v=-QhZKcvuBWc"]YouTube- 12.997 @ 106.48 1.9860ft[/ame]

[ame="http://www.youtube.com/watch?v=sw_JgCrroug"]YouTube- 345 RWHP 361 RWTQ Shanes 2009 G8 Latest Dyno Run[/ame]
 
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Shadow Grey 03

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Kind of funny that two guys with G8's with a couple of posts show up here. The only ones I've seen run have been bone stock and in the low 14 range. I'm sure they run much better with mods and a tune, but I haven't seen them run. If the G8's are running 111+ with said mods and the cobra is stock, this isn't a surprising outcome. Either way it most likely happened and will probably happen again, if there are still other stock cobras out there.
 

CLN 6R

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Kind of funny that two guys with G8's with a couple of posts show up here. The only ones I've seen run have been bone stock and in the low 14 range. I'm sure they run much better with mods and a tune, but I haven't seen them run. If the G8's are running 111+ with said mods and the cobra is stock, this isn't a surprising outcome. Either way it most likely happened and will probably happen again, if there are still other stock cobras out there.

Couple posts? I've been here longer than you, and have more posts than you. I also used to have a Mustang, so I had a reason to be here.
 

GeorgeInNePa

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Kind of funny that two guys with G8's with a couple of posts show up here. The only ones I've seen run have been bone stock and in the low 14 range. I'm sure they run much better with mods and a tune, but I haven't seen them run. If the G8's are running 111+ with said mods and the cobra is stock, this isn't a surprising outcome. Either way it most likely happened and will probably happen again, if there are still other stock cobras out there.

Why's it funny? :D

2008 Pontiac G8GT

Vararam CAI, ARH longtubes, high-flow cats, x-pipe, ported throttle body, ported intake, dyno tune, Yank 3200 stall converter, MT ET Streets, poly bushings, coil-overs

DA -89 @ Island Dragway

12.420 @ 111.04, 1.75 60'

1d325d27.jpg
 

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