Corvette C7

  • Thread starter boomee
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Toronado
That's not a customer point of view. The average Corvette buyer isn't going to hold off until they can spend twice as much money to buy a car that would most likely suit their needs worse.
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Toronado
Yeah. Because an 800+ pound (probably much more if you built it up to have that much power), ungainly dimensioned iron block engine is totally better for the job.
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£800 would be for delivery alone, a couple thousand more like. Each engine is similar cost to swap.
Toronado
No. The reason to go that way is because it's cheaper, more reliable, more powerful and does almost nothing to the handling balance compared to the engine that is already in there.
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It's not cheaper over here, and the wankel has SOOOO much more balance than putting in a LSx, even RB20DET seem popular due to the lightness.
Toronado
The only reason you would put an even more complicated and fiddly version of the engine that was already in there or (even worse) an iron block straight six is if you didn't particularly care about any of those things; at which you're in no position to claim it is a "better" engine over an LSx series because you (again) don't know what you're talking about.
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LSxs are simple and easy power gain but aren't the best around just best for cost. The GTRs/GTTs maybe inline six but still well balanced if down correctly, and great power from only 2.6l turbo as small engines suit eastern hemisphere better. If we were one of the largest countries will huge open roads then yes a massive 6l+ v10 might be better but the tax in this country would also be Huge. Both engines have there merits but 2 examples in same car
mazda-gtrx-7.jpg

Rb26dett 240kg ready
2720716730084697152rsHbiQ_ph.jpg

LS1 (twice the capacity but similar power) 226kg ready

Both tidy and effective but that RB is putting out 900rwhp think the LS is 700rwhp. Not even mentioned the popular 2jz engines but ill leave it there. Don't dislike the LS but will never come across one so i wont argue something i havent see for my self (other than a proper tuned rotary beating a v8 rx7 lol at a drift event i was at)
 
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LS engines are not about only power, but they have huge torque. Plus, LS engines also can handle high amount of power if they recieve a turbo.

LS7 engines get over 1000hp easily, for example.

Besides, this thread is about discuss the new Corvette C7, not to tell that you prefer a Skyline engine, or a RX-7 engine. Sorry, but we are just not interested in your opinion.
 
Youngun
£800 would be for delivery alone, a couple thousand more like. Each engine is similar cost to swap.
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800+ pounds as in weight with ancillaries and whatnot for an engine built up to deliver those kind of power numbers. And the engine itself is larger dimensionally. And the center of gravity is higher.

Youngun
It's not cheaper over here, and the wankel has SOOOO much more balance than putting in a LSx
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Nope. You relocate the battery and beef up the rear end to take the extra power (which you would have to do anyway) and the difference is mooted. Even if you do that, the difference in weight is ~100 pounds compared to a 13b with all of the turbo ancillaries, and with similar dimensions to a 13b dressed with turbos and plumbing.

Youngun
even RB20DET seem popular due to the lightness.
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Ancillaries would be lighter because they are smaller (single turbo that is smaller, smaller intercooler, etc.) but the rest of the engine would be roughly the same weight. Probably why they only offered it in Skylines rather than also putting it in the lighter, smaller Silvia.

Youngun
LSxs are simple and easy power gain but aren't the best around just best for cost.
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Which is also why it is helpful that they are lighter, smaller and make more power out of the box than just about anything else you can commonly find; rather than just being the cheapest.

Youngun
mazda-gtrx-7.jpg

Rb26dett 240kg ready
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You mean this car? The one where the person who made it needed to custom fabricate pretty much everything to do with the engine to get it to fit (and it still doesn't, since he had to cut into the hood so the turbo could get in the engine bay)? The one where he even admitted that the physical size of the engine was a biggest issue in doing the swap? So we have a much larger engine that weighs a lot more (because there's no way that weighs 240kg, and that LS1 weight is rather high too but without knowing the details of that car I can't comment exactly) that has to spread its weight over an area further forward.



Also:

DSC_6738-copy.jpg


That car with the boost dialed back all the way produces 700+. Note how there is probably... half a foot between the front of the engine bay and the plumbing for the turbochargers, even though he wasn't really bothered by using all of the space he had as perfectly as he could. Note how he had more than enough clearance to reinstall the strut tower bar. Note how all that stuff actually fits under the hood.

sstp_1004_10_o+1994_mazda_rx_7+engine_bay.jpg


Note how that isn't the case for this one.





In fact, before you attach anything, an LSx looks like this:

JEF3682-L.jpg


This is the engine that came with it.

RX7-engine-bay-detail.jpg


Difference isn't that great just from the block itself between those two (LS3 extends just past the front struts and the 13b stops about flush with them), whereas the RB block by itself extends all the way to the back of the headlights.






So you want to know why the LSx will go down in history? Because it is a powerful, efficient, small and very lightweight engine that can easily match the abilities of much larger, supposedly more "advanced" ones. So enough about your "GM is finally bringing the Corvette into the 21st century" nonsense.
 
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Wow, great post honestly. I had no idea just how good of a package LS engines are... really puts it into perspective. You're like the Jimmy Carr of... cars Toranado xD
 
What's the secret to the LSx's excellence? It's OHV. Old school? If it is, why does it work so well? It's much lower than DOHC engines, lending to a lower center of gravity. It's also lighter because it doesn't have gigantic heads full of complicated nonsense. Compare it to Nissan's VQ: The LSx is used throughout GM's lineup, from giant trucks to luxury sedans to the Corvette. Many parts are shared so the engine often proves to be inexpensive to maintain. Speaking of Corvette, that car gets about the same fuel mileage as a 370Z while also being much more powerful and faster. The Corvette is one of few sports cars today that still has an extremely low, sleek hoodline, one that still passes muster in Europe. They've also proven to be some of the most reliable modern engines on the road, even when crammed with turbocharged power.

So far the engine hasn't seen a lick of direct injection, stratospheric SkyActive-like compression ratios, or advanced hybrid systems attached to it. It does have variable cam technology and cylinder deactivation. There's still a ton of room to improve the design and make it more powerful and efficient.
 
If this hasnt been said already but it looks like a Ferrari 599 in the front with Camaro lights......

@toronado must you poison my eyes with that filth lol??
 
sumbrownkid
How much longer you guys think GM can keep the LS series going?
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Remember how long the 350 went for? 1955-2003. The LS series have a long way to go in my opinion.
 
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Toronado
800+ pounds as in weight with ancillaries and whatnot for an engine built up to deliver those kind of power numbers. And the engine itself is larger ..................... the 21st century" nonsense.
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School :P well being a V8 (4 cylinders deep and small ones at that, it wouldn't go as far, new that but d'oh), how would it compare to the new GTR V8 (closer comparison). Learn something everyday, (even though rx7/8s wankel has a much lower center of gravity for the engine, and yes they do way a fair bit but still only 160kgish but i want a triple rotor in mine so would be 200kg+.
But i never said i didnt agree that the LS isnt well engineered (one of my fav cars is a GM) , just to compare with euro V8s SLS 200kg 6.2l 570hp (mclarens MP4 is turbo'd 200kg 3.8l 600kg, 458 4.5l 580hp 200kg) so were all not that bad
 
Youngun
School :P well being a V8 (4 cylinders deep and small ones at that, it wouldn't go as far, new that but d'oh), how would it compare to the new GTR V8 (closer comparison). Learn something everyday, (even though rx7/8s wankel has a much lower center of gravity for the engine, and yes they do way a fair bit but still only 160kgish but i want a triple rotor in mine so would be 200kg+.
But i never said i didnt agree that the LS isnt well engineered (one of my fav cars is a GM) , just to compare with euro V8s SLS 200kg 6.2l 570hp (mclarens MP4 is turbo'd 200kg 3.8l 600kg, 458 4.5l 580hp 200kg) so were all not that bad
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Smart man 20b swap with single turbo and a good tune and to the moon you go that makes sense for a swap not a ls1 darn grannyspeed.
 
mazdaman
Smart man 20b swap with single turbo and a good tune and to the moon you go that makes sense for a swap not a ls1 darn grannyspeed.
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Well there's the entire part where a 600hp 20B will cost you, eh...

Probably 5x as much as an 800hp LSx. Or more. And it'd be much less streetable and a fair bit less reliable to boot.
 
Keef
...or advanced hybrid systems attached to it...
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tahoe-hybrid.jpg

Ahem.

Well, technically it isn't an LS, but the basic design is pretty much the same. It wouldn't have taken much to adapt the technology to other variants of the GenIV, all of which fueled the rumors years ago that GM might stick a modified version of that powertrain in the C7 Corvette.
 
Rotary Junkie
Well there's the entire part where a 600hp 20B will cost you, eh...

Probably 5x as much as an 800hp LSx. Or more. And it'd be much less streetable and a fair bit less reliable to boot.
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Agreed 100% but that then leads to another favorite debate of mines . But that's off topic I just consider staying rotary but granny speed makes it so easy by giving the conversion a price of $1500 ...
 
mazdaman
Agreed 100% but that then leads to another favorite debate of mines . But that's off topic I just consider staying rotary but granny speed makes it so easy by giving the conversion a price of $1500 ...
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LOL yeh
 
A teaser that hardly shows anything....at least give us someeeething.
 
It will be revealed on the first of the 13th month of 2013?

And it will be made of clay?


:sly:
 
You get some pretty clear shots of the wing mirrors, taillights, and other parts. So far it's looking a lot like the previous renders we've been seeing.
 
Yeah. That's not going to get confusing or anything GM. Thanks.

:rolleyes:




Kinda surprised that it is the same size as the current one. I figured they would have dropped it back down to 5.7 at the very least. Everything Brad was saying was suggesting even smaller than that, too. Though if they are pushing fuel economy up even more, who cares.
 

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