^ ^

A vette on 4 cylinders would sound nasty, thats just sacrilege!! Vette owners and fans would tear GM a new one if they made it like that lol. Credit goes to those 6 speeds with some crazy overdrive ratios not to mention all that torque down low. In my mustang I rarely have to go over 2200 rpms even while merging on freeways. And the skip shift helps them save gas in the city also.

 

True, that does bring up another point... I wouldn't really call the 6th gear in the G a true overdrive. 2500rpm at 70 is a lot for a overdrive gear, it could stand to be a little taller, especially since I don't forsee a need to use that little bit extra accel after 150-160mph, whatever it is where 5th runs out. Even on a track I couldn't see hitting those speeds.

 

Wow...I drive like a bat outta hell and still get over 300 miles before fill-up. Why is there so much variance in our cars

 

we have a DOHC V6 while the vette has a pushrod cam in block V8. the old fashioned pushrod engines tend to get better fuel efficiency vs DOHC designs because they usually have bigger displacement and thus spins much slower. to get the same amount of hp, a similarly rated DOHC engine will have to spin much faster. The 7.0 liter LS7 is also about the same size and weight as our VQ35 and cheaper to produce.Whats even more amazing about the z06 engine is that it redlines at 7000rpm just like our DOHC engine!I think thats impressive. Im very impressed with what GM has done with the small block V8.

btw i dont think the z06 has cylinder deactivation. the dodge Hemi has it.

 

I get around 19.5 mpg in normal city driving conditions, i usually shift a tad bit above 2k rpm. So most of the time I stay under 2k. I wish i can get 20+, 22 woud be ideal.

 

You'd best revisit the curb weight of the Z06 vs our coupes. What do our coupes weigh? Something like 3450 lbs or thereabouts. The Z06 undercuts that considerably.

Furthermore, like GSpotter said, that 7.0 litre has enough torque to effortlessly move it along without sucking fuel like you might think it would with that kind of displacement.

 

I drove from Cali to Texas and averaged 27mpg...I took a pic of my nav screen showing this, but I don't email enabled on my phone. The locals have seen the pics...it's awesome...cruise control all the way.

 

A normal LS motor might be cheap to make but nothing about the Z06 motor is cheap. Its a hand built race motor basically.

I've done 27.5 highway with the cruise on flat ground....Gotta love the G

 

If the 7.0 ZO6 engine was in a state of tune like the 3.5 l VQ, then it would be making 560 hp and 540 lb/ft of torque. You can get better gas mileage, but mods and driving habits play a huge role. Instead of cruising in the VQ's sweet spot (3.5k), try a higher gear at keep the revs around 2000-2500 rpm. Most of us can't (or won't) do this mainly because it sucks down there.

One more thing, take a look at the ZO6's MSRP. Infiniti would be stupid to release the GT-R costing more than $60k (IRT speculations on the GT-R's MSRP of $70k... )

 

for me, this is not a solution because the droning from the Injen exhaust at 2500rpm is unbearable...anyone that's driven in my car can attest to that.

 

I get around 350 to 360 miles per tank and this is with mainly city driving. I think the lowest I have gotten was around 330 when I was driving the hell out of it after I finally got it broken in.

 

That wasn't meant for you, Randy. You gave up on fuel efficiency a long time ago

 

the article it self says its basically the same motor as the ls2 save for titanium connecting rods and intake valves and the bigger displacement. everything else remains the same. I dont believe its handbuilt at all. its not possible to keep the price this low if it has hand built motors.

http://forums.corvetteforum.com/sho...65&forum_id=100

 

Oh...believe it. This was one of the main selling points since the specs were revealed. This is straight from the Chevrolet website:

Inside every Z06 is an LS7 aluminum–block V8. It puts out a SAE-certified (Society of Automotive Engineers) 505 hp and 470 lb.–ft. of torque. Hand–built by the GM Performance Build Center in Wixom, Mich., the LS7 engine contains a litany of racing–derived components, such as an eight–quart dry–sump lubrication system, titanium valves and connecting rods, forged–steel crankshaft with six–bolt main bearings, high–profile cam, and Computer Numerical Controlled (CNC) machined heads for better air/fuel flow. Even with its performance, the engine does not incur a federal government gas–guzzler penalty.

Ed

 

I bet the LS7 is more expensive than the VQ