mp67 said:
Me thinks you missed the part of my thread that said peak hp #'s don't win races but a better hp # across the rpm range is best. I agree with what your saying about the torque.
I didn't miss that post, we are in agreement that broad torqe curves are better than high peak torque. I was just saying that I belive the 2005 GT is going to be faster than you said it would be.
I also believe that the 4 valve heads will pretty much fade away. If you look at the 3V #'s on 87 octane gas 300 HP / 315 lb ft and then add about 5% if the compression ratio was raised to 10.5:1 for 91 Octane you have 315 HP & 330 lb ft which is essentially the same as the 2004 Mach 1 4 valve engine. Now throw into the mix that the 3 valve engine is lower cost to manufacture, smaller in size and lighter in weight, where does that leave the 4 valve heads?
Think about this for a model lineup (I've backed the Mach 1 #'s down a bit):
V6 - 4.0L, 2V, 87 gas 200 HP / 235 lb ft
Pony - 3.5L 4V (Duratec 35), 250 HP / 260 lb ft
GT - 4.6L 3V, 87 gas 300 HP / 315 lb ft.
Mach 1 - 5.4L 3V, 91 gas 350 HP / 370 lb. ft.
Shelby - 5.0, 4V, 91 gas 400 HP / 380 lb ft
SVT Cobra 5.4L 3V, 91 gas, Supercharged 450 HP / 450 lb ft
Now there's a model line up. Any Mustang you want, in 50 HP increments!
Of course I need to figure out where the 5.8L V10 - Boss 351 is going to fit into the model line up.