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IMO, Corvette needs to get with contemporary engine technology, DOHC's are used in all supercars, imports and now the 2011 Mustangs (5.0L, 412hp)

OHV is the cheap way out! If Corvette is to remain competitive in ALMS, it needs DOHC and VVT in order to compete on the long straights where Porsche and Ferrari seem to always catch them.

True, low end torque is a plus for OHV, but VVT has improved low end torque for all brands using it.

Impending emission and fuel economy legislation will probably cause a decrease in engine size and DOHC, VVT will help to overcome the cubic inch losses.

Lose the supercharger, refine the engine and increase HP per liter, reduce weight, raise interior quality and make it happen in the C7.:partyon:
 

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C7 will continue to use a OHV engine.

It will continue to have class leading performance and class leading fuel economy.
 

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Discussion Starter #3
C7 will continue to use a OHV engine.

It will continue to have class leading performance and class leading fuel economy.
Oh, I forgot that GM was lead by the government for awhile.
 

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Oh, I forgot that GM was lead by the government for awhile.
Has nothing to do with that. The current LS line produces power comparable to the other makes. The reason the Corvettes suffer on the straights against other brands is weight and gears. The Corvettes are regulated so they will not use all the power they could make. And, before moving to GT2 besides the regulated power limiters, they were forced to carry extra pounds to keep the other brands competitive.

Power per pound the LSx series is still at the top of the heap.

The corvette could use an advancement in transmission technology as they are competing against 7 and 8 speed transmissions of more advanced design.

:cheers:
 

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Has nothing to do with that. The current LS line produces power comparable to the other makes. The reason the Corvettes suffer on the straights against other brands is weight and gears. The Corvettes are regulated so they will not use all the power they could make. And, before moving to GT2 besides the regulated power limiters, they were forced to carry extra pounds to keep the other brands competitive.

Power per pound the LSx series is still at the top of the heap.

The corvette could use an advancement in transmission technology as they are competing against 7 and 8 speed transmissions of more advanced design.

:cheers:
indeed with the limitations of the current Corvette the engines isn't one of them.

Instead of trying to fix something that doesn't need to be fixed lets fix something that needs to be fixed like the seats.
 

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Has nothing to do with that. The current LS line produces power comparable to the other makes. The reason the Corvettes suffer on the straights against other brands is weight and gears. The Corvettes are regulated so they will not use all the power they could make. And, before moving to GT2 besides the regulated power limiters, they were forced to carry extra pounds to keep the other brands competitive.

Power per pound the LSx series is still at the top of the heap.

The corvette could use an advancement in transmission technology as they are competing against 7 and 8 speed transmissions of more advanced design.
:agree:

Why build a more complicated engine, if what you have outperforms the others?

Midnite, don't get me started on all the regulations posed on Corvette over the years! :laughing: Weight, smaller gas tank, etc... why don't they just start adding extra laps to Corvette too. Such a joke. I got turned off to that type of sanctioning years ago, don't even follow it now. All the more reason to add another Corvette Challenge Series, or man-up and force competitors to actually compete.
 

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:agree:

Why build a more complicated engine, if what you have outperforms the others?

Midnite, don't get me started on all the regulations posed on Corvette over the years! :laughing: Weight, smaller gas tank, etc... why don't they just start adding extra laps to Corvette too. Such a joke. I got turned off to that type of sanctioning years ago, don't even follow it now. All the more reason to add another Corvette Challenge Series, or man-up and force competitors to actually compete.
It really goes both ways, everyone who stood up to Corvette Racing went home defeated. There is only one racing team that was able to give the GT1 Corvette C5R and C6R a run for its money and that is prodrive. It was kind of boring watching races where you had two cars in the GT1 group the number 3 Corvette C6R and the number 4 Corvette C6R. No matter what happened the Corvette was going to win, though with the GT2 team the challenge is far greater then what it was with the GT1 team.
 

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Discussion Starter #9
It really goes both ways, everyone who stood up to Corvette Racing went home defeated. There is only one racing team that was able to give the GT1 Corvette C5R and C6R a run for its money and that is prodrive. It was kind of boring watching races where you had two cars in the GT1 group the number 3 Corvette C6R and the number 4 Corvette C6R. No matter what happened the Corvette was going to win, though with the GT2 team the challenge is far greater then what it was with the GT1 team.
That's why NASCAR has become a joke also!!!
 

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IMO, Corvette needs to get with contemporary engine technology, DOHC's are used in all supercars, imports and now the 2011 Mustangs (5.0L, 412hp)

OHV is the cheap way out! If Corvette is to remain competitive in ALMS, it needs DOHC and VVT in order to compete on the long straights where Porsche and Ferrari seem to always catch them.

True, low end torque is a plus for OHV, but VVT has improved low end torque for all brands using it.

Impending emission and fuel economy legislation will probably cause a decrease in engine size and DOHC, VVT will help to overcome the cubic inch losses.

Lose the supercharger, refine the engine and increase HP per liter, reduce weight, raise interior quality and make it happen in the C7.:partyon:

Corvette's problems in ALMS are not about where the cams are or how many but how big the restrictor is that the regulatory commity allows them to run.

Not to worry VVT and direct injection are on the way for the Gen V engines.
 

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Is it possible to do away with cams all together and electrically actuate the valves? then have a dial for eco, and off-road, and normal modes.
 

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Being the bearer of bad news, The Corvette already has more power than the average idiot that buys one can safely handle.
 

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Is it possible to do away with cams all together and electrically actuate the valves? then have a dial for eco, and off-road, and normal modes.
:agree:

I also like the dual cam in the valley they were playing with a few years ago!

http://www.google.com/imgres?imgurl...1&ndsp=18&ved=1t:429,r:8,s:0&biw=1345&bih=555
http://www.google.com/imgres?imgurl...1&ndsp=18&ved=1t:429,r:8,s:0&biw=1345&bih=555
One cam on top of the other. Both cams had VVT but they could adjust the intake and exhaust valves timming differently. With the current VVT if you can only trim both the intake and exhaust a few deg but they only move together. You can never get a wider split.

I would like to see a single cam with a hallow core that is keyed with two VVT gears one that runs the inner cam "intake" and one the adjust the outer cam "exhaust".
That way you still have a standard OHV V8 but all the adjustablity of the VHC.
 

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Is it possible to do away with cams all together and electrically actuate the valves? then have a dial for eco, and off-road, and normal modes.
computer controlled valves is where things may go and it is being worked on by varies auto makers.
 

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:agree:

I also like the dual cam in the valley they were playing with a few years ago!

http://www.google.com/imgres?imgurl...1&ndsp=18&ved=1t:429,r:8,s:0&biw=1345&bih=555
http://www.google.com/imgres?imgurl...1&ndsp=18&ved=1t:429,r:8,s:0&biw=1345&bih=555
One cam on top of the other. Both cams had VVT but they could adjust the intake and exhaust valves timming differently. With the current VVT if you can only trim both the intake and exhaust a few deg but they only move together. You can never get a wider split.

I would like to see a single cam with a hallow core that is keyed with two VVT gears one that runs the inner cam "intake" and one the adjust the outer cam "exhaust".
That way you still have a standard OHV V8 but all the adjustablity of the VHC.
concentric camshafts is what Chrysler is currently using for its OHV VVT motors being the 5.7L and the up coming 6.4L and its rumored that the Gen V motors from GM will use the same.
 

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Is it possible to do away with cams all together and electrically actuate the valves? then have a dial for eco, and off-road, and normal modes.
I believe a few years ago BMW was looking into just this and the main problem they were encountering was that the solenoids used to actuated the valves allowed the valves to shut to forcefully and ultimatly damaging the valve.
 
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