GM to revive LT5 name

[Kevin]

Originally Posted by Hib Halverson

Aw...why not have some fun with wild-assed guessing.

I say the C7 Z06 will be a 2015 with a supercharged version of the LT1 for power. Figure on 650-675-hp. Even with AFM, I'll bet it will be a guzzler.

A future ZR1??

Maybe...but not until late in the decade, perhaps on a different platform and surely with AWD. An interesting path for GM to take would be a sort of "hybrid" propulsion system, like some other car makers are doing, with a 700 or so horsepower V8 driving the rear wheels and a generator. The front wheels would be driven electrically.

if you had said toyota or audi i'd have believed you but "corvette" went dp, not wec

[mike100]

I could still see myself getting a coupe, but a ZR-1(ZR1) better be a dohc design with both cams running vvt to justify the price. I drive my Coyote powered mustang everyday, the 91 LT5 on the weekends and then my LS3 car when I feel sorry for the dying battery and flat spotting tires and all I can hope for is that the new LT1 is bad ***, because the 4v engines have been entertaining me much much more recently.

(the LS3 is still the fastest though).

[Hib Halverson]

Originally Posted by mike100

(snip)

(the LS3 is still the fastest though).

I can't help but to think that speaks volumes about Coyote-powered Mustangs.

[VetteVet]

Originally Posted by XfireZ51

A quote from AutoBlog



With use of the LT1 nomenclature, I had a suspicion this could be coming.
Holy Crap!

Dom,

Did you just quote yourself? Is that even allowed? My brain just exploded!!

[XfireZ51]

Originally Posted by VetteVet

Dom,

Did you just quote yourself? Is that even allowed? My brain just exploded!!

Jep,

Yes. I am just that conceited!

[Fully Vetted]

I am convinced GM will never do another DOHC performance motor. They are as committed to the CIB architecture as Ford (and the rest of the world, BTW) is to DOHC. They can get the mileage they need with cylinder deactivation and they've developed the piss out of it so they can make the power. And if not, they'll just throw a SC on it. And they will certainly never do another limited run of anything with a special motor like the LT5 project. Too many bean counters in control for that. Those days are over.

[LancePearson]

Originally Posted by Fully Vetted

I am convinced GM will never do another DOHC performance motor. They are as committed to the CIB architecture as Ford (and the rest of the world, BTW) is to DOHC. They can get the mileage they need with cylinder deactivation and they've developed the piss out of it so they can make the power. And if not, they'll just throw a SC on it. And they will certainly never do another limited run of anything with a special motor like the LT5 project. Too many bean counters in control for that. Those days are over.

There are others who already make better motors than GM's 2v architecture for power and they have proven not to be: too heavy, too tall, too complex which are usually some of the pc reasons stated by c6 owners for not going back to modern dohc architecture. The cylinder deactivation technology sounds good but not to be a wet blanket....when they had it in Caddy's it didn't last and wasn't that great. What are the long term use implications of it on motor function and wear? I think that's a valid question. the 7.0 liter engine currently in the ZO6 appears to have valve wear and valve guide routine problems as well so continuing on or ramping them up in either 6.2 or 7.0 litre engines does what to that? Lastly, tell me again why anyone but drag strip guys need more than 600 hp for anything? Most modern 500-550 hp cars with six speeds and the right rear ends already push or exceed 200 mph....which, in Virginia gets you jail time, a $3500 fine and loss of license as you will be going a minimum of 130 mph over the highest speed limit.

In addition, the one person I've talked to with a 700+ LT5 says that he cannot even kick the boost in until he's at least in third gear or he can't keep the car on the road as the tires just don't stick. I know Ferrari's f12 Berlinetta kicks out 730 hp from its dohc 64 degree v engine but I'd bet the ranch that they just about never get to turn all those horses loose even on road race driving other than long straights now and then.

Perhaps the question should be: how much horsepower is enough? I'd argue as above and start differentiating models not purely by power but by type systems, front engine, mid engine, dohc or two valve, naturally aspirated vs turbo, etc. so people have broader choices. They will never sell a lot of Corvettes at those prices for zo6 and zr1 if they can only sell them to people who need and want 650 plus hp in my view. You can burn up more than $125,000 right now buying a new one of those.

Some cost/function value equation for most people.

Just my new to LT5 but big fan, huge fan, of the dohc architecture...put dry sump under it and lower the hood line?

[Paul Workman]

Originally Posted by Fully Vetted

I am convinced GM will never do another DOHC performance motor. They are as committed to the CIB architecture as Ford (and the rest of the world, BTW) is to DOHC. They can get the mileage they need with cylinder deactivation and they've developed the piss out of it so they can make the power. And if not, they'll just throw a SC on it. And they will certainly never do another limited run of anything with a special motor like the LT5 project. Too many bean counters in control for that. Those days are over.

Damn well said. (But, I hope you're wrong about "never" do (another DOHC) project?!)

P.

[GOLDCYLON]

It would not surprise me. The LT5 name badge ="s power and was the head of the pack for the C4 generation as KOTH. I equate this to the Shelby name badge for the Ford platform. Both are power names. We will all forget that foray into the Dodge platform for Shelby as sometimng that never happened.

I agree DOHC will not revived anytime soon. The LSX platfrom had become prediticable, cheaper, dependable (Except for the Z06 guys) and a SC is always available for more power

[Kevin]

there's only a handful of people who know what the lt5 is. lt1 lt4 l88, which gm recently trademarked again, zl1 these are known.