Detailed specifications on the G8

[Get Shorty]

I spent a lot of time writing this up. Thought some of you might be interested.

http://g8gt.com/t106/

I really think this car is changing my future vehicle plans... I may buy one of the first year model G8's, then wait until to buy a Camaro until the 2010 model comes out. :hmm:

[jr. gong]

I just realized the L76 makes 362HP on regular gas, and is pretty choked up from the factory... :cool:

[Get Shorty]

Yeah, I was shocked to see that it doesn't require premium. :yup:

[shingo]

I predict this is going to be a real winner for GM. Can't wait to see these on the streets.

[mrgto]

You wrote it up? Looks like you could have just copied and pasted it like I did on the PY boards.

[Heracles]

I know nothing about this! SOunds exciting!

:cool:

[Get Shorty]

Originally posted by mrgto
You wrote it up? Looks like you could have just copied and pasted it like I did on the PY boards.

I didn't write it. That came straight from GM. I just put it in an outline format so that it's easy to search. :shrug:

[PONTIAC*GUY]

Looks nice, kinda wish they had a coupe version though

[Dwight Schrute]

Originally posted by Get Shorty
I didn't write it. That came straight from GM. I just put it in an outline format so that it's easy to search. :shrug:

What? Your first post says you spent a lot of time "writing this up."

[Davy_Baby9]

Originally posted by PONTIAC*GUY
Looks nice, kinda wish they had a coupe version though


GTO

[triggerjerk]

So what is the difference between the LS2 and L76?
Just the intake manifold? Heads?
Does the L76 use the L92 heads? This is getting confusing.

[1badls2goat]

Originally posted by triggerjerk
So what is the difference between the LS2 and L76?
Just the intake manifold? Heads?
Does the L76 use the L92 heads? This is getting confusing.

L76 is an LS2 that uses L92 heads, but a smaller cam than an LS2, which is why it makes less horsepower than the LS2. Basically, if you take the L92 (or L76) heads and put 'em on an LS2, you'll get a 30-40whp gain. They used a smaller cam for emissions/mpg purposes.

[triggerjerk]

thanks goat.
it is good to hear that it will have l92 heads.
over on tech, lgm got 490rwhp with a mild L92 head and cam combo on an ls2.

[NONo443]

I wonder what kind of lap times regular people (or at least not magazine testers) will get out of the G8 at some of the big U.S. road courses, :hmm: .

[FlagSStaff]

Wow... pretty impressive, for sure. It will be interesting to see in person when they hit the showrooms!

[Get Shorty]

Originally posted by PONTIAC*GUY
Looks nice, kinda wish they had a coupe version though

Well, I wish they were coming out with a Firebird... I suspect they are, but I'd love to see an official announcement on it.

Originally posted by Dwight Schrute
What? Your first post says you spent a lot of time "writing this up."

Writing this up as in writing this in outline format. You think I just pulled the specifications out of my head? Of course not, they came from GM.

Originally posted by 1badls2goat
L76 is an LS2 that uses L92 heads, but a smaller cam than an LS2, which is why it makes less horsepower than the LS2. Basically, if you take the L92 (or L76) heads and put 'em on an LS2, you'll get a 30-40whp gain. They used a smaller cam for emissions/mpg purposes.

The L76 also has displacement on demand, or active fuel management.

[Get Shorty]

Originally posted by NONo443
I wonder what kind of lap times regular people (or at least not magazine testers) will get out of the G8 at some of the big U.S. road courses, :hmm: .

Yeah, I can't wait to see how it performs... :hyper:

[Davy_Baby9]

Originally posted by triggerjerk
So what is the difference between the LS2 and L76?
Just the intake manifold? Heads?
Does the L76 use the L92 heads? This is getting confusing.


The L76 has a Camshaft Position Actuator Control System (CMP), Active Fuel Managment Control System.

This allows the camshaft to have up to 17 degrees advance and up to 45 degrees of retard. Which allows more TQ throughout the entire powerband, plus better fuel milage.

This is in the truck version, so I assume the car version will be the same.

[Boz]

4000lbs :\

[QWIKLS1]

I hadn't paid much attention to this car up to this point.

But what's the major difference between that car and a GTO?

From a skim of the specifications it looks similar to the LS2 Goat. Not that that's a bad car at all. :D

[Get Shorty]

Originally posted by QWIKLS1
I hadn't paid much attention to this car up to this point.

But what's the major difference between that car and a GTO?

From a skim of the specifications it looks similar to the LS2 Goat. Not that that's a bad car at all. :D

Well, the glaring difference is that it's a sedan rather than a coupe. :D

That's one of the main reasons I'm interested. It's a family car with balls. :cool:

[boostedgtp]

im in the same boat and quikls1. I havent heard anything about this car up until this point. I love the way the car looks. Is the l92 the cadi 6.2?

[Davy_Baby9]

Originally posted by boostedgtp
im in the same boat and quikls1. I havent heard anything about this car up until this point. I love the way the car looks. Is the l92 the cadi 6.2?

The L92 is used by Cadillac and GMC. Its the same motor as the L76 except for displacement.

[01zincguy]

Originally posted by Boz
4000lbs :\ .

I wish that Gm would make this car, but in a package that weighed 3100 or so lbs. :drool:

[cm_ls1]

Originally posted by QWIKLS1

But what's the major difference between that car and a GTO?



the GTO used the GMX 281 platform ... which was a heavily modified V-car ( opel omega / caddicalc catera )

the new G8 uses the VE ( zeta) chassis , which is completely engineered from the start in australia.

so to answer to your question , the major differences btween this and the gto IS WELL everything ! HAHA, except the drivetrain ;)

[Checkmate]

Originally posted by cm_ls1
the GTO used the GMX 281 platform ... which was a heavily modified V-car ( opel omega / caddicalc catera )

the new G8 uses the VE ( zeta) chassis , which is completely engineered from the start in australia.

so to answer to your question , the major differences btween this and the gto IS WELL everything ! HAHA, except the drivetrain ;)

GM NA did a lot of engineering on the all new chassis also. ;)

Intake on l76 is also different.

[Get Shorty]

Originally posted by 01zincguy
.

I wish that Gm would make this car, but in a package that weighed 3100 or so lbs. :drool:

The weight sort of bothers me too. Weight reduction would be my first goal...

[Rob Almighty]

Originally posted by Get Shorty
Well, the glaring difference is that it's a sedan rather than a coupe. :D

That's one of the main reasons I'm interested. It's a family car with balls. :cool:

There have been family cars with balls for some time now...you can score a mildly used CTS-V for $33,000 and it has more HP. :shrug:

[Nick7810]

Originally posted by Polemicist
There have been family cars with balls for some time now...you can score a mildly used CTS-V for $33,000 and it has more HP. :shrug:

You gonna spend a fortune on rear ends with the CTSV, and it's only available with a manual trans.

[MapleRed]

Originally posted by Get Shorty
The weight sort of bothers me too. Weight reduction would be my first goal...

Its actually lighter than the Chrysler RWD cars. I can't believe these cars pretty much average around 4k lbs. :eek:

[Kata Skopos]

Originally posted by MapleRed
Its actually lighter than the Chrysler RWD cars. I can't believe these cars pretty much average around 4k lbs. :eek:

4 doors and some luxury items? thats not TOO bad :shrug:

now a 2 door sports car *cough* Gt500 *cough*... thats another story :o :D

[Rob Almighty]

Originally posted by #88
You gonna spend a fortune on rear ends with the CTSV, and it's only available with a manual trans.

No you're not. Not everyone races their car.

[MapleRed]

Originally posted by needcash
4 doors and some luxury items? thats not TOO bad :shrug:

now a 2 door sports car *cough* Gt500 *cough*... thats another story :o :D

Good point.

[Get Shorty]

Originally posted by needcash
4 doors and some luxury items? thats not TOO bad :shrug:

now a 2 door sports car *cough* Gt500 *cough*... thats another story :o :D

True enough, but I've never liked very heavy cars.

[ScotWithOne_t]

Why did they put larder diameter brake rotors on the rear?? :boggled:

[F1_SS]

I hope they come out with it and dont bitch with it.

1. Im glad they are finally using good trannies on their cars. i think anyone has had a 98-02 F body and/or 97-04 vette auto tranny is tired of them breaking.

2. RWD is a good thing!

[Gravy Train]

Originally posted by Polemicist
No you're not. Not everyone races their car.


1 year and 15,000 mis. into my CTS-V and I haven't broken a rear yet. :xfings: But yea, don't expect to hang 1.6 60-fts with these cars.

I'm hoping the G8 GT/GXP will replace my CTS-V in a couple years, but I need to know more about the drivetrain components first. Did Holden select a Getrag or Dana-sourced rearend for this car, and has anyone seen pics of the housing and related hardware?

[SphyNxXx]

Originally posted by F1_SS
I hope they come out with it and dont bitch with it.

1. Im glad they are finally using good trannies on their cars. i think anyone has had a 98-02 F body and/or 97-04 vette auto tranny is tired of them breaking.

2. RWD is a good thing!

Ive never heard of a widespread problem with the A4 trannys breaking.

[F1_SS]

Originally posted by SphyNxXx
Ive never heard of a widespread problem with the A4 trannys breaking.

Your lucky.

The 4L60e is weak as paper.

The 3-4 clutches and bands are always going out. Put a stall in it and start saving up for a rebuild and or new tranny.

[Gravy Train]

The 4L60/5E is typically reliable on a well-maintained stock vehicle. Modded, the pump has problems above 6000 RPM and the sun shell isn't reliable on vehicles over 3600#.

[F1_SS]

Originally posted by Imperator
the sun shell isn't reliable on vehicles over 3600#.

:spit:

[Gravy Train]

With a loose converter. Look at the number of TBSSs that are fragging trannies.

[jr. gong]

Originally posted by ScotWithOne_t
Why did they put larder diameter brake rotors on the rear?? :boggled:

50/50 weight distro? :dunno:

[Get Shorty]

Originally posted by DrewSG3
50/50 weight distro? :dunno:

That doesn't matter. The front will still do the majority of the braking...

[Nick7810]

Originally posted by ScotWithOne_t
Why did they put larder diameter brake rotors on the rear?? :boggled:

Thye are using single piston calipers on the rear as opposed to twin piston calipers on the front. Could that affect anything?:dunno: