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Old 07-18-2012, 07:32 AM   #26
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Originally Posted by RLHMARINES View Post
I think its' obvious that this pic is of a fwd specific layout and not for a rwd layout if you look at the intake and exhaust positions from the older pics that I provided. I believe the truck pics are not of a 3 valve arraignment like this pic.
Definitely FWD layout, with the throttle on the back of the engine.

Thanks for posting. Very interesting read. While a lot of the technology will be (or already is) in the newer engine, that block design/configuration is never, ever going to see production.

Nothing like that will ever be used in a FWD application in today's world. Maybe it seemed to have potential back when this was first conceived when gas was 89 cents a gallon, and CAFE was 27 mpg, but today the future of FWD is downsized turbos, not NA V8s with a 24 mpg goal. And, with no FWD applications, the 75 degree bank angle becomes dead on arrival. No point in splicing the crank and adding balance shafts and all that if you don't have to. The two cam in block system sounds expensive, too.

Again, thanks for posting though. It was quite interesting. Ultimately, I think the Gen V will be closer to the LS3/L99 than this, though.
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Old 07-18-2012, 01:22 PM   #27
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While i do agre with the tipside mess I think a majority has to do with mass manufacturing and how time consuming it would be to put wiring into vehicles in 30 seconds like we do over months of time..
I understand that GM can't put a lot of time into each engine bay, but it can be done much better than current.

Take a look under the hood of a Mustang 5.0 or Boss, and compare it to the underhood of a Camaro SS. The Mustang GT and Boss are produced in similarly high volumes, but Ford still manages to have engine compartments that actually showcase the hardware, instead of taking GM's stance of "screw it -- lets just hide it under a huge, goofy plastic mask".
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Old 07-18-2012, 01:56 PM   #28
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i don't like the cover at all i dumped mine as soon as i got it home
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Old 07-28-2012, 10:10 PM   #29
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This is my best guess and here it is, I think the new surprise is the new combustion chamber the engines will deploy is HCCI technology. GM has been toying with this new diesel like combustion for gasoline engines for years now, just my .02 cents.
They've been working on it, but it would be extremely risky for them to introduce such a radical technological leap in a vehicle that will need around a half million of them a year. If I had to guess, I'd say that GM will debut HCCI in the Volt (as a small 3 or 4 cylinder engine -not big V8). In addition to being low volume, the Volts duty cycle would make it almost ideal for the limited operating range of HCCI
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Old 08-27-2012, 12:30 PM   #30
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coool. wonder if the guy in the pic is in trouble?
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Old 08-27-2012, 12:55 PM   #31
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coool. wonder if the guy in the pic is in trouble?
that's likely a PR pic. if that guy was being sneaky, he sure as hell wouldn't be posing like that.
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Old 08-27-2012, 01:41 PM   #32
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Resurrecting something from over a month ago and no updated info?
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Old 08-27-2012, 01:53 PM   #33
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that's likely a PR pic. if that guy was being sneaky, he sure as hell wouldn't be posing like that.
i know right.
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Old 08-27-2012, 02:32 PM   #34
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lolwell it finally made homepage. I was like YES new NEWS and nope, no news
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Old 08-27-2012, 03:18 PM   #35
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1Wow! Did you see what I saw on that engine?? 1well you didn't see it I'm not going to tell you. And I can see the exact specs just by looking at the pic. Looks the 5.0/302 is back. just right for a z28.

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Old 08-27-2012, 03:51 PM   #36
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oddly shaped surfaces on the valve cover mine be the direct-injection system
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Old 08-27-2012, 05:38 PM   #37
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Old 08-27-2012, 07:43 PM   #38
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so in english measurement standards it gets 26 mpg and 295 h.p.
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Old 08-27-2012, 07:47 PM   #39
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A first peek at the new heart.

Needs a vararam wedge.. LOL.. Just sayin.
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Old 08-27-2012, 07:56 PM   #40
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Resurrecting something from over a month ago and no updated info?
Exactly what I was thinking.
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Old 08-27-2012, 07:56 PM   #41
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I'm sure it will be a good motor with improvements in power & efficiency over the LS3, I just rather wait and see how it holds up... Likely my first time passing up being first in line for new tech.
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Old 08-27-2012, 09:05 PM   #42
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The holes are to monitor the head temps... Noobs
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Old 08-27-2012, 09:23 PM   #43
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1Wow! Did you see what I saw on that engine?? 1well you didn't see it I'm not going to tell you. And I can see the exact specs just by looking at the pic. Looks the 5.0/302 is back. just right for a z28.
IMHO GM can produce a 5.0L Gen V engine and use it to replace both the 4.8L and 5.3L which should help with cost. Also its an excuse to produce a 5.0L Gen V SBC in order to go head to head with the 5.0L BOSS 302 Mustang.

This is just a rough est. as to what I think a Gen V 5.0L SBC would produce based off of what the LS3 makes and est. on gains for direct injection and VVT.

LS3 makes 70BHP/L so if it was in 5.0L form it would produce 351BHP.

GMs old 3.6L V-6 (VVT but no direct injection) produced 263BHP, currently the 3.6L with direct injection (in same application in CTS) produces 318BHP. the 263BHP version produced 73BHP/L and the new engine makes 88BHP/L. A gain of 15BHP/L or 21% in peak output, if you applied that same 21% to the LS3 and down size it to 5.0L then well. If you added 21% to the LS3 then it would produce 528BHP (which is going to be hard for some to believe). That would be 85BHP/L (an increase of 15BHP/L) and in 5.0L form would make 425BHP.

Though we have yet to get into what would VVT add to the SBC, however that comes down to what type of system. If its the GM cam phaser on the camshaft then gains in the past for said system has been about 10%. However if its the concentric camshaft VVT system then gains would be high though how much higher is unknown. Just working on the 10% increase in our 5.0L 425BHP V-8 engine would give us 467BHP out of our 5.0L engine.

Though this is all pure speculation....
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Old 08-27-2012, 11:53 PM   #44
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IMHO GM can produce a 5.0L Gen V engine and use it to replace both the 4.8L and 5.3L which should help with cost. Also its an excuse to produce a 5.0L Gen V SBC in order to go head to head with the 5.0L BOSS 302 Mustang.

This is just a rough est. as to what I think a Gen V 5.0L SBC would produce based off of what the LS3 makes and est. on gains for direct injection and VVT.

LS3 makes 70BHP/L so if it was in 5.0L form it would produce 351BHP.

GMs old 3.6L V-6 (VVT but no direct injection) produced 263BHP, currently the 3.6L with direct injection (in same application in CTS) produces 318BHP. the 263BHP version produced 73BHP/L and the new engine makes 88BHP/L. A gain of 15BHP/L or 21% in peak output, if you applied that same 21% to the LS3 and down size it to 5.0L then well. If you added 21% to the LS3 then it would produce 528BHP (which is going to be hard for some to believe). That would be 85BHP/L (an increase of 15BHP/L) and in 5.0L form would make 425BHP.

Though we have yet to get into what would VVT add to the SBC, however that comes down to what type of system. If its the GM cam phaser on the camshaft then gains in the past for said system has been about 10%. However if its the concentric camshaft VVT system then gains would be high though how much higher is unknown. Just working on the 10% increase in our 5.0L 425BHP V-8 engine would give us 467BHP out of our 5.0L engine.

Though this is all pure speculation....
Thats not bad....BUT!

Anyone have a link to the article about the current motor running in the LeMan's GT2 Corvette's?

Well if my memory serves, its running a (granted race spec only) 5.5L. Now thats all well and good but I remember them mentioning it was producing 440hp, and that it was the next gen engine.

They also mentioned the 6.2L would be returning... So I don't see a 5.0L making 467hp.....

That being said, we don't know what GM might pull off. And the motor I'm referring to might not be a DI motor....Maybe an inbetween...


I mean...If Ferrari can product 560hp from a 4.5L, and if McLaren can produce 612hp from a (TT) 3.8L .....Who's to say what is possible?
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Old 08-28-2012, 11:24 AM   #45
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Thats not bad....BUT!

Anyone have a link to the article about the current motor running in the LeMan's GT2 Corvette's?

Well if my memory serves, its running a (granted race spec only) 5.5L. Now thats all well and good but I remember them mentioning it was producing 440hp, and that it was the next gen engine.

They also mentioned the 6.2L would be returning... So I don't see a 5.0L making 467hp.....

That being said, we don't know what GM might pull off. And the motor I'm referring to might not be a DI motor....Maybe an inbetween...


I mean...If Ferrari can product 560hp from a 4.5L, and if McLaren can produce 612hp from a (TT) 3.8L .....Who's to say what is possible?
The engine in the C6R is just that, the C6R engine and if regulations state for 2013 the engine size limit is 5.0L then it will be reduced further to 5.0L.

I have yet to read any mention from GM or a GM source that states there will be a 5.5L production engine.

At the same time, engines are tuned with a goal in mind and if 440BHP is the goal for a 5.5L engine that doesn't mean you can't make more from that engine.

Though I did read that the 6.2L engine size would return, though what engine sizes are produced from the factory for the 5th generation engine we won't know until they are produced. Though its 100% certain that the after market will produce 7.0L 5th generation engines....
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Old 08-28-2012, 12:45 PM   #46
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Must be slow to put a month old thread with no updates on the home page.
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Old 08-28-2012, 04:03 PM   #47
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Welcome back to the mid 70's through the 80's. Smaller motors, less power, more fuel efficiency. Glad I bought a 2010, "1969" Camaro so to speak, while muscle was still available in a new car just like in the late 60's to early 70's.
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Old 08-28-2012, 11:18 PM   #48
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Thats not bad....BUT!

Anyone have a link to the article about the current motor running in the LeMan's GT2 Corvette's?

Well if my memory serves, its running a (granted race spec only) 5.5L. Now thats all well and good but I remember them mentioning it was producing 440hp, and that it was the next gen engine.

They also mentioned the 6.2L would be returning... So I don't see a 5.0L making 467hp.....

That being said, we don't know what GM might pull off. And the motor I'm referring to might not be a DI motor....Maybe an inbetween...


I mean...If Ferrari can product 560hp from a 4.5L, and if McLaren can produce 612hp from a (TT) 3.8L .....Who's to say what is possible?
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The engine in the C6R is just that, the C6R engine and if regulations state for 2013 the engine size limit is 5.0L then it will be reduced further to 5.0L.

I have yet to read any mention from GM or a GM source that states there will be a 5.5L production engine.

At the same time, engines are tuned with a goal in mind and if 440BHP is the goal for a 5.5L engine that doesn't mean you can't make more from that engine.

Though I did read that the 6.2L engine size would return, though what engine sizes are produced from the factory for the 5th generation engine we won't know until they are produced. Though its 100% certain that the after market will produce 7.0L 5th generation engines....
What you have to remember about that engine is that its restricted by the air box per rules to make it more competitive for everyone in the series. With a different manifold and air intake it may make more power. That engine is also a destroked 6.0L engine. A 4.00in(101.6mm) bore with about a 3.34inch(85mm) stroke if I were to guess
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Old 08-29-2012, 12:48 AM   #49
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Welcome back to the mid 70's through the 80's. Smaller motors, less power, more fuel efficiency. Glad I bought a 2010, "1969" Camaro so to speak, while muscle was still available in a new car just like in the late 60's to early 70's.
the only difference is, more horsepower, better fuel economy, and reduced emissions which the more horsepower part didn't happen in the 70s.
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Old 08-29-2012, 02:25 AM   #50
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the only difference is, more horsepower, better fuel economy, and reduced emissions which the more horsepower part didn't happen in the 70s.
That's the truth
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