C7 Engine?

**Low drag - High speed** · 12-02-11, 11:25 AM

... anything new out there could be the C7 engine. At this early date, who can say with any surety what market pressures and legislature fiat will sculpt the final product? An extreme fuel crisis might push all cars towards smaller engines or technology advances might create efficiencies that allow a V16, like that Caddy concept, to be feasible.

Face it, though ... the grannies at GM will stick to the current setup with a front V8/rear transaxle. That's not such a bad thing as long as the styling is exceptional.

**Hib Halverson** · 12-02-11, 12:21 PM

The vehicle development cycle for 2014 Corvette is about 4 years and the engine cycle is about the same. Both need to be complete in time for a summer 2013 introduction The car's layout was set a while ago. The powertrain is generally set with only final development left to go. Styling is for the most part complete. I'm thinkin' that what we saw in those Jalopnik renderings of a week or so ago is close to what the car will look like.

V16?
Laughable.
Fuel economy, engine size and weight make it impossible

A 5.5L V8 and/or a 3.6L V6 TT are the likely candidates.

**Low drag - High speed** · 12-02-11, 03:19 PM

... no one would expect a V16. No need to sneer when musing about cylinder counts. I still doubt the Jalopnik version represents the finality you seem to ascribe it because factories go to great lengths to hide their unreleased designs and often endeavor to feed disinformation to the automotive press. Sometimes a so-called insider is much farther outside than they imagne themselves to be. Regardless of the inflexible, never-changing, undeniably rigid pre-production preparations laid down by the industrial gods, they can pull the wool now and then ....

**catbert** · 12-02-11, 03:57 PM

The fuel economy impact of the Vette on the GM CAFE number is insignificant at the low production numbers we are seeing now. Thank God the new Cruze and Sonic are selling well, and the Spark will help too. GM is a hell of a lot more concerned with the truck figures, and their numbers are huge.

Bottom line - V8 only.

**6 Shooter** · 12-03-11, 07:09 AM

Originally Posted by 6 Shooter

Wixom, MI – A new direct-injection fuel system will help GM’s Gen-V small-block engine deliver greater fuel efficiency compared with the current generation. The fifth-generation small block is an all-new engine family that builds on the architectural and technology legacy of previous generations with greater efficiency, performance and refinement.

GM Media

**Low drag - High speed** · 12-03-11, 11:34 AM

Direct injection is the most efficient induction system ever devised, so it stands to reason it will find a home in the C7. GM has a history of trying out new technology in specialized packages. Remember the Quad 4? It led to engines like the Northstar V8, so their Indy 4 might be grandaddy for the new V8.

Anyhow, as Hib so eloquently explained, it's likely already crated and ready. And I'm sure it will be a V8. I mean, hey ... it's a Corvette.

**Hib Halverson** · 12-03-11, 02:53 PM

Originally Posted by Low drag - High speed

Remember the Quad 4? It led to engines like the Northstar V8, so their Indy 4 might be grandaddy for the new V8.

Anyhow, as Hib so eloquently explained, it's likely already crated and ready. And I'm sure it will be a V8. I mean, hey ... it's a Corvette.

Me? "Eloquent"?
Man...have I got you guys fooled.

As for the Quad 4 having "led" to the premium-V engine series....did we suddenly revise history? I thought the LT5 was what got GM thinking of an in-house DOHC V8.

Quad 4, vibration and all, led to the Ecotech and it's current derivatives.