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Is the 6.2L going to be in the new camaro?



How about a SC 6.2?

*slams head into brick wall........multiple times*

[gurgle]No![/gurlge]

lol what is your malfunction sir:confused: :eek:

Is the 6.2L going to be in the new camaro?



How about a SC 6.2?


I wouldent be surprised at all to see the LS3 and a varient of the LS9 in the 5th gen.

The LS3 is either 6.2 or 6.3 liters....I forgot this morning...

...and yes the LS9 is a SC 6.2L....

§h@dow Dr@gon ......what's wrong with you buddy?;)

What do you expect to see in the 5th gen by chance?

I have a great idea... how about a FAQ's on the 5th Gen? and have it as a sticky... put questions like: engine, RWD, 2 doors, etc etc... so you guys don't have to repeat yourself so much. I still have heard people saying that hte camaro is going to be FWD. LOL

A ten...A ****in ten.

ahhhh yes then we could have a forum where no one talked. That would be fun...:rolleyes:

ahhhh yes then we could have a forum where no one talked. That would be fun...:rolleyes:

:think:
Cool it Bub....its not a bad idea....its just wouldn’t be very official since nothing is technically in stone yet....

I agree with Stars, very good chance of seeing the 6.2L LS3 in the Camaro since it will replace the LS2.

Could GM do both a DoD motor AND a supercharged motor?

Could GM do both a DoD motor AND a supercharged motor?

Someone was arguing in another thread how it may not be possible to shut down cylinders with forced induction due to the higher pressures this may cause internally to the engine.

But I’m not an engineer and honestly I have no clue if this can be accomplished or not.

What ever the 2008/9 base Corvette gets, the Camaro will have.

I expect the 6.2L to replace the 6.0L's in the Vette, Camaro, and GTO

The pressure would be the same among cylinders. The 2 or 4 dead holes would just be air pumps without a fuel mixture. Unless they can shut down the valves for those cylinders too (deactivate the camshaft in parts.... lol)

The pressure would be the same among cylinders. The 2 or 4 dead holes would just be air pumps without a fuel mixture. Unless they can shut down the valves for those cylinders too (deactivate the camshaft in parts.... lol)
DOD does shut the valves off, by disabling the lifters. So yes, I would foresee problems with DOD on a supercharged engine since the blower is putting in X cubic feet of air in anticipation of 8 cylinders receiving it. Cut the number of receiving cylinders in half and the intake pressure doubles ... not good.

Maybe an intake manifold variable relief valve could open during this time like a 1-way valve to relieve the pressure??

your forgetting that anytime there woudl be alot of boost is when there's going to be alot of throttle, and DOD is NOT active at that time. aka, the extra air isn't going to be as much as your thinking.

What if the blower was clutched?

DOD does shut the valves off, by disabling the lifters. So yes, I would foresee problems with DOD on a supercharged engine since the blower is putting in X cubic feet of air in anticipation of 8 cylinders receiving it. Cut the number of receiving cylinders in half and the intake pressure doubles ... not good.i must say thats an interesting theory you have on DOD explain how how this works with the lifters etc. :) and in order to have a motor run smooth still, you need to alternate the cylinders constantly. the motor still operates like any other motor the DOD is electronic with fuel. the mechanical changes you explain simply cannot happen, especially on a pushrod motor, not to mention the damages the cylingers would recieve if valves stayed closed etc.

What if the blower was clutched?the buick 3.8L motors have that system, its a good design:cool:

i must say thats an interesting theory you have on DOD explain how how this works with the lifters etc. :) and in order to have a motor run smooth still, you need to alternate the cylinders constantly. the motor still operates like any other motor the DOD is electronic with fuel.

No, it's not just electronic. Four of the lifters have little pins operated by oil pressure, and when the computer signals it, the pin is pulled and the lifters no longer lift. The valves stay closed. The idea is that the air trapped inside the cylinder acts like a spring to reduce parasitic loss. If the valves opened as usual and the pistons pumped away, there'd be far less benefit.

The cylinders do not alternate. Four cylinders have the special lifters and four do not. The engine runs like a V4 in DOD mode, which is a relatively smooth configuration under light load.

One of the main benefits of DOD is to reduce pumping losses, and it does this by closing the valves on the unused cylinders as noted above, and also by making the other four cylinders work harder at a larger throttle opening. Believe it or not, pumping losses caused by a partially closed throttle blade are a huge power waster. This is why all DOD engines have to have throttle-by-wire, so that the computer can seemlessly open the throttle blade more when DOD kicks in.

the mechanical changes you explain simply cannot happen, especially on a pushrod motor, not to mention the damages the cylingers would recieve if valves stayed closed etc.

Well, all I can say is do some research. It definitely happens. Why do you think the cylinders would be damaged if the valves stayed closed? There's nothing to hit. And pushrod has nothing to do with it either, companies like Mercedes use use DOD on OHC engines too.

the buick 3.8L motors have that system, its a good design:cool:

I don't recall any 3800 with a clutched supercharger :think:

Many of them had bypass flaps that allowed the charger to essentially spin freely by not allowing a pressure differential on either side of the blower, but the blower was not clutched and continued to turn with the engine no matter what.

i must say thats an interesting theory you have on DOD explain how how this works with the lifters etc. :) and in order to have a motor run smooth still, you need to alternate the cylinders constantly. the motor still operates like any other motor the DOD is electronic with fuel. the mechanical changes you explain simply cannot happen, especially on a pushrod motor, not to mention the damages the cylingers would recieve if valves stayed closed etc.

He's right. The cylinders are deactivated via the lifters. Oil going to the lifters is stopped, not allowing them to pump up. With the lifters collapsed, both intake and exhaust valves stay shut. The computer adjusts the air/fuel/injectors/spark/etc. I am not sure, but I believe the 4 cylinders that are shut off remain the same and do not alternate as you mentioned. Don't quote me on that.

.

One of the main benefits of DOD is to reduce pumping losses, and it does this by closing the valves on the unused cylinders as noted above, and also by making the other four cylinders work harder at a larger throttle opening. Believe it or not, pumping losses caused by a partially closed throttle blade are a huge power waster. This is why all DOD engines have to have throttle-by-wire, so that the computer can seemlessly open the throttle blade more when DOD kicks in.


Reduction in pumping loss makes sense, but wouldn't it be counteracted by the 4 closed cylinders doing nothing but compressing air on each crank revolution?

Reduction in pumping loss makes sense, but wouldn't it be counteracted by the 4 closed cylinders doing nothing but compressing air on each crank revolution?

It's like a spring. Yes it takes energy to compress the air, but then you get some of that energy back as it helps push the piston back down again. Overall it consumes less energy than if the piston had to push and pull air through open valves on every stroke.

I don't recall any 3800 with a clutched supercharger :think:

Many of them had bypass flaps that allowed the charger to essentially spin freely by not allowing a pressure differential on either side of the blower, but the blower was not clutched and continued to turn with the engine no matter what.

Yeah, agreed, I'm pretty sure its the same L67 I have in my GTP.

It's like a spring. Yes it takes energy to compress the air, but then you get some of that energy back as it helps push the piston back down again. Overall it consumes less energy than if the piston had to push and pull air through open valves on every stroke.

Right. Got it. Lightbulb went off when I read this..

slk 230's have an Eaton m62 that has a clutch on it. i bought one of those superchargers for my compound boost project on my 84 supra.

§h@dow Dr@gon ......what's wrong with you buddy?;)

What do you expect to see in the 5th gen by chance?

Honestly, with GM in the situarion it's in will probably stick with the LS2 for base V8 launch. Do you really think GM has the cajones to shove an SC car right out on it's face without judging public perception after it's launch?

When it launches....little engine to dip the Camaro's tires in the water. After sales ramp up. Then I'll worry about a forced induction motor.

Honestly, with GM in the situarion it's in will probably stick with the LS2 for base V8 launch. Do you really think GM has the cajones to shove an SC car right out on it's face without judging public perception after it's launch?

When it launches....little engine to dip the Camaro's tires in the water. After sales ramp up. Then I'll worry about a forced induction motor.

Well the LS2 won’t be in production anymore when the 5th gen launches, so it will have a 420 hp LS3 as its base V8 right off the bat.

And the SC V8 won’t show up until the second year model anyway…..

Anymore questions? ;)

I knew nothing about the LS3, so thanks for the info. :)

I knew nothing about the LS3, so thanks for the info. :)


No prob ;) :p

Well the LS2 won’t be in production anymore when the 5th gen launches, so it will have a 420 hp LS3 as its base V8 right off the bat.

And the SC V8 won’t show up until the second year model anyway…..

Anymore questions? ;)

How certain are you of the LS3?

I started a thread several months ago entitled "Making the case for the LS3 in the Top Dog Camaro", here:

http://web.camaross.com/forums/showthread.php?t=425944

I am not often right in my conjecture, but it would sure be nice to have called this one correctly ;)

and P.S. On a scale of 1 - 10, 10 being certainy enough to cut off your left testicle if wrong, how much certainty is there with an SC V8 option?

How certain are you of the LS3?


I’m not going to say I'm 100% certain, but let’s say 90%.

It’s the only logical mid level V8 to use after the LS2 goes away. Remember the LS2 will be 5 or 6 years old when the Camaro launches. There will be a new base V8; the LS3 will most likely be it.

The SC V8 will be the top engine in year two.....


I am not often right in my conjecture, but it would sure be nice to have called this one correctly ;)

and P.S. On a scale of 1 - 10, 10 being certainy enough to cut off your left testicle if wrong, how much certainty is there with an SC V8 option?

Well if you read my most recent thread in the Automotive News / Future Vehicle Discussion forum, I discussed how my friend has recently seen the new SC V8 being tested in Vettes.

That said, and from another comment I have heard concerning this issue, I am very confident to say my testicles are safe and a SC V8 will be gracing our 5th gen.

I thought DoD only worked at crusing speeds with very little throttle. In this case I don't think a supercharger would be making much boost so it might not be a problem.

I don't know.