Next Generation Corvette set to go Turbo Charged?

by Clinton Deacon
August 25, 2008 6:00 PM
Filed Under: American, Chevrolet, Rumours

The 2009 Corvette ZR1(pictured) sales are yet to get off the starting block, but that doesn't stop the intuitive folks over at Popular Mechanics from speculating on the next generation C7. It will be launched in 2012 and following a but of digging at the first drive event a couple of weeks a go, a few juicy details have popped up in the engine department.

The current ZR1's LS9 engine possesses a displacement of 6.2-liters, a potent supercharger and a power figure of 638bhp that has other competitors eating its dust. For the new generation, consumers will demand something even better, word on the street states displacement could be dropped down to 5.7 liters and a decision is yet to be taken on whether it will be supercharged or turbo charged.

Moving down in the model line-up to the Z07, we could well see the unthinkable happen, a V6 Corvette! That's right, the engineers are toying with the idea of decreasing the cylinder count down from the current V8. When analysing the current LS7 engine, a power rating of 505hp from the heavy 7-liter engine is quite poor by today's standards and the ZR1's LS9 is proof the Corvette engineers can do better. The next generation Corvette Z07 could take the Cadillac CTS' direct-injection 3.6-liter DOHC V6 add a set of twin turbo chargers and achieve the same performance demanded by Corvette enthusiasts. However engineers must not forget that consumers love the sound of the LS9's V8 and a despite what you do with the V6, it doesn't have the same bite.

Overall the changes will result in a number of politician pleasing effects with improved fuel economy and emissions, the lighter weight of the engine will also add to the performance.

Source: Popular Mechanics
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Comments

i think supercharged would be better.

by mmr66 | August 25, 2008 6:06 PM
hahahaha, "heavy 7-liter engine is quite poor by today's standards" the 7-liter engine is not a heavy engine. It has been bored and machined away to the bare minimum. The reason why they aren't using forced induction on it is purely in the fact that since they were focusing on weight reductions, the engine wouldn't be capable of reliabling standing forced induction during extended use. Twin turbo v-6? nah I'll pass, I'd rather have a "inneficient" naturally aspirated v8. Way easier to work on, cheaper, and more fun to drive.

by joe_limon | August 25, 2008 6:22 PM
*reliably

by joe_limon | August 25, 2008 6:24 PM
Yoo...WCF, you ought to get your **** together. The LS7 is probably one of the lightest V8s in the world...In fact its well known the LS7 is even lighter than some 4 cylinder motors, like the S2000s. Wow, that was a pathetic mistake.

Anyway, i've heard the new Corvette could boast a small V8, 4.7 Liters give or take. However that wouldn't be done for weight reasons but to put in a smaller engine that burns a bit less fuel, into an overall lighter Corvette body. TT V6 ? thats a great engine...but sorry it sure as $#!t doesn't belong in a Corvette, screw that idea.

by Xanavi23 | August 25, 2008 7:01 PM
Vette's are synonymous to V-8's. So therefore, it's mandatory. An American twin-turboed V-6 scares me... and not in a good way.

by RobERob | August 25, 2008 7:59 PM
really now. heavy LS7? someone has been drinking here.. and he/she's been drinking without me. i give you the thumb up, yes, it is poor by todays standards (7 litre, 505 bhp) but i don't think it is heavy. i mean, it is a smallblock..right? anyhow... if GM's engineers proved they can do better, why don't they proove it again? in other words, why can't they squeeze more power from that V8, 7 litre... pfff, i mean, it still has room..lots of room. i'd say..to 600-650 bhp, there is a lot of room. but i would prefer the magical 100bhp per litre figure - 700 bhp. i mean, everybody is doing it. i think even from the 6.2 they could squeeze 600 bhp WITHOUT the supercharger. so what's with the god damn V6..eeh?

by norther | August 26, 2008 1:27 AM
The LS7 only weighs 207kg there thereabouts.

by 122 | August 26, 2008 10:27 AM
Yes the LS7 is the second lightest big V8 ever...even 20kg lighter than new M3 4.0L V8!!! But did you know that Mercedes-AMG engine M156 is the lightest among V8`s ?? Yes it only weights 199kg! And that includes all that hi-tech...and with 6.2L it develops more HP than Vette`s LS7!!! So if they add the TT or SC it would be the best V8 ever :) On Corvette is somehow legendary to have pushrod V8 with no hi-tech...just realibility, high fuel consumption and lazy revving engine with a low grunt torque of a forced induction engine! But that is American way of engineering...here in EU we like hi-tech engines with a lot of HP and Torque!

by swifthead | August 26, 2008 3:39 PM
*slaps you upside the head* how can a lazy revving engine have low end grunt torque? A lazy revving engine is one that hates running in the lower rpm range and only develops it's peak torque in the higher rpm band as with the AMG engine. Also, the AMG engine also costs 3-4 times to make compared to the Corvette engine. Finally if any of you have ever seen the block of a LS7 engine you would understand why they are naturally aspirated, and why Chevy chose the 6.2 liter to supercharge. They cannot turbo/super charge the LS7 reliably, there simply isn't enough engine there to withstand the power under daily use. The same goes with the AMG 6.2 liter engine, it's block has also been wittled down to almost nothing, sure you can always add forced induction and get crazy numbers but at a severe cost in engine life.

by joe_limon | August 27, 2008 1:02 AM
GM still uses the push-rod small block because they have had no reason to change it. Look how the ZR1 spanks the super cars. If you have an engine like that why change it and make it more complex? That doesn't make sense.

by gmfan09 | August 26, 2008 4:08 PM
This is the first time ever that time i agree with Joe Limon!

by audinick | August 31, 2008 2:45 AM

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