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Old 10-24-2012, 09:48 AM   #1
Keith@VetteFinders
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Default C7 Engine Seminar

New 6.2L LT1 V8

http://www.corvetteblogger.com/2012/...50hp-v8-engine



New Chevrolet Corvette V8 is 6.2 liters, designated LT1. Not the first time a Corvette engine has that RPO code.

0 to 60 mph in less than 4 seconds. Entry-level car. 450 hp or more!

New Corvette WILL use cylinder deactivation. Go from 6.2 V8 to 3.1 V4 for better fuel economy.

New V8 engine has 11.5:1 compression ratio. Direct fuel injection, cylinder deactivation; continuously variable valve timing; active fuel management

450 hp 450 lb-ft of torque. More than 26 mpg!

New engine has a unique and complex piston head.

New LT1 V8 has 50 lb-ft more low-end torque than current LS3 V8; matches the LS7 V8 from the Z06.

LT1 engine to be built at Tonawanda engine plant in Buffalo.

Premium fuel recommended, but not required.

Spark plug is in the center of the chamber. Intake and exhaust valves are reversed.

There will be an optional 11.5 quart dry sump oil system available for the new LT1 V8

6,600 RPM fuel cut off in the new LT1 motor

All the new technologies on the LT1 make it a heavier motor than the LS3

Patent-pending PCV system

Final performance ratings will come in 2013

LT1 Engine build animation video --> http://www.youtube.com/watch?v=9E-DQ1qQyJk

Peak horsepower around 6,000 RPM; peak torque around 4,000 RPM

New combustion process to be documented in an SAE paper to be published in the Spring of 2013

LT1 is the first OHV engine with Direct Injection


















Last edited by Keith@VetteFinders; 10-24-2012 at 01:41 PM.
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Old 10-24-2012, 09:50 AM   #2
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Thanks for the info. Where was this at, GM? When was it?

Last edited by BlueOx; 10-24-2012 at 09:53 AM.
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Old 10-24-2012, 09:50 AM   #3
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They just ruined the car with AFM. Really! Thats for camaros
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Old 10-24-2012, 09:53 AM   #4
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Only 450 ?! :'(
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Old 10-24-2012, 09:55 AM   #5
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Quote:
Originally Posted by Varcix View Post
Only 450 ?! :'(
My guess is " or more"
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Old 10-24-2012, 09:56 AM   #6
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keep refreshing for updates. We'll add all new info as it comes in to the OP.
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Old 10-24-2012, 09:57 AM   #7
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I have NO idea but am guessing it will be just a red hair under 500 hp (496) with around 450 lb·ft.
I nailed the torque number! What's the door prize!?

Last edited by BlueOx; 10-24-2012 at 10:08 AM.
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Old 10-24-2012, 09:59 AM   #8
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Quote:
Originally Posted by crabbyj View Post
my guess is " or more"
please more....!!!

450hp up from C6's 430hp! WOW!! Let's build an entirely NEW engine with the goal of a 4.4% increase in HP guys!

I know HP doesn't mean everything...but you have to admit this isn't the engine BOOST we were hoping for?

EDIT: I will admit the 50 lb tourque boost is signigicant!

Last edited by Varcix; 10-24-2012 at 10:13 AM.
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Old 10-24-2012, 10:02 AM   #9
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I knew it would be 6.2! The 5.5 will be for trucks!
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Old 10-24-2012, 10:03 AM   #10
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OK, well 450 is nothing to complain about. I'm sure the "or more" means "probably more", but I'm now not as unhappy as I was when Keeks said 430. (Although, he did say "CLOSE to current base power".)

I don't have a problem with cylinder deactivation. I've seen it in action. The switch between the modes happens VERY fast and seamless. Saving some fuel doesn't bug me one bit.

Stop/Start may bug me, but not cylinder deactivation.
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Old 10-24-2012, 10:05 AM   #11
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So all that talk of 5.5-l was for nothing.... This is interesting. Final HP to be revealed at Corvette unveiling.
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Old 10-24-2012, 10:06 AM   #12
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The Corvette has been rated at 26mpg highway since the 80's.Nothing to brag about there other then the power output has doubled since then. Everybody and their mother is saying 5.5L.The C6R's are running 5.5L. Who told you they will put a 6.2L in there?
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Old 10-24-2012, 10:08 AM   #13
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Quote:
Originally Posted by BlueOx View Post
I nailed the torque number! What's the door prize!?
And I almost got the HP with 455 which is 450+6 (NPP if the same) = 456HP
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Old 10-24-2012, 10:09 AM   #14
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Quote:
Originally Posted by CRABBYJ View Post
My guess is " or more"



Me Too

You can never have enough horse power
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Old 10-24-2012, 10:09 AM   #15
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It is all lies, I still believe it will be a 1.6L 4 cly turbo with a 14k redline.
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Old 10-24-2012, 10:11 AM   #16
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Anyone who has driven the AFM trucks knows that you can't even tell when it's in operation. I will be surprised if this car doesn't get close to 30mpg in manual or auto form.

Only problem is that guys with aftermarket exhausts might have to find a way to disable it if they want to hear all 8 cylinder all the time.
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Old 10-24-2012, 10:11 AM   #17
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Quote:
Originally Posted by not08crmanymore View Post
Everybody and their mother is saying 5.5L.The C6R's are running 5.5L. Who told you they will put a 6.2L in there?
Tadge Juechter.


Last edited by irvbulldogs72; 10-24-2012 at 10:16 AM.
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Old 10-24-2012, 10:12 AM   #18
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Quote:
Originally Posted by not08crmanymore View Post
The Corvette has been rated at 26mpg highway since the 80's.Nothing to brag about there other then the power output has doubled since then. Everybody and their mother is saying 5.5L.The C6R's are running 5.5L. Who told you they will put a 6.2L in there?
In denial? By your own admission, the C6r runs a 5.5, then why isn't that motor in the C6? Think it may have something to do with the rules?
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Old 10-24-2012, 10:13 AM   #19
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If the 26 is combined then that's awesome. The torque plus a lighter base Vette means the C7 will out run an LS3 C6 easily. I'm not crazy about the AFM but that can be tuned out. With the high CR and direct injection this car will have huge dyno gains and scream with a good tune. Best part is that with DI it's possible to run crazy HP numbers on 87 octane!!
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Old 10-24-2012, 10:14 AM   #20
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Quote:
Originally Posted by Varcix View Post
please more....!!!

450hp up from C6's 430hp! WOW!! Let's build an entirely NEW engine with the goal of a 4.4% increase in HP guys!

I know HP doesn't mean everything...but you have to admit this isn't the engine BOOST we were hoping for?
Realistically, what were you expecting? C6 Z06 levels of performance and power? With 450-460hp it will still outperform almost all of its competitors while achieving good fuel economy at a reasonable price.

You still need space for the rumored S/C model. No need to go overboard for a base model car.
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