Originally Posted by PacerX

I count two "inevitables" there.

So, that means we are now banking on "double-secret-inevitable" vaporware being faster than the LS2 GTO, sometime in the crystal-clear future.

If someone has something concrete, I'd love to see it.

Originally Posted by PacerX

Is the N/A 5.4 Mach1 any more than vaporware at this point or is there a production date? Aren't the current Mudstain and the GTO about the same in weight... or at least close enough that a significant power and/or traction advantage is going to have to exist for one to outrun the other?

Given Ford's history with inadequate N/A motors in Mustangs since 1993 (except for the blown 4.6) I'd be very curious as to the viability of the 5.4 liter solution...

Furthermore, bank on one thing for sure:

The LS2 is nowhere near tapped out power-wise. There's still some low hanging fruit that can be easily grasped in the camshaft department.

Given the fact that the biggest concern seems to be drivetrain durability when mated up to the LS2 (note all the "electronic grandmothers" working away furiously in the Vette and holding it back...), I would think that those are the issues that should be taken care of first. Get the drivetrain to survive intact without the nannying, and then turn up the wick.

And if the hp war really heats up, there's still the 7.0 liter, 500hp gorilla LS7 out there lurking.

Again, the #1 issue in both camps is going to be drivetrain durability.

Originally Posted by BigBlueCruiser

The current GT weighs about 3500lbs to the current GTO's 3800lbs. Plenty of enough difference. As far as traction, the current GT's live axle seems to be the best ever.

We can argue whether the 4.6 is any good. I'd say for a mainstream for the masses pony car, it's plenty.

The 5.4 stang will be a much more targeted performance car, just like the previous Mach1. And bottom line, I'm calling it a high 12 car. Now whatever GM thinks it has to do to answer that, I'm all for it. But the LS2, in its current state of tune, in a heavy GTO, is going to get trounced.
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Originally Posted by BigBlueCruiser

I'm also pissed the GTO is not slated for the LS7 in a GTO Judge.

Originally Posted by BigBlueCruiser

Now whatever GM thinks it has to do to answer that, I'm all for it. But the LS2, in its current state of tune, in a heavy GTO, is going to get trounced.

I'm also pissed the GTO is not slated for the LS7 in a GTO Judge.

Originally Posted by Z28x

'04 GTO was 3665lbs. Mustang is 3500lbs. LS2 is putting out a lot more power than the 4.6L 3v. I'd be very impressed if a heavier 5.4L stang could throw down the #'s a LS2 GTO, '03 Cobra, or Cobra R can.

Originally Posted by 1990 Turbo Grand Prix

Can someone enlighten me on this L92 for me please. I must have missed this. Is this the proposed 6.2 truck motor?