Advanced Engineering Tech - 2010 - 2011 Corvette Racing LS7-based engine

I have a friend who was fortunate enough to participate in some of the engineering of this engine. I don't THINK this is a repost but let me know if it is and I will just delete it. It has a lot of cool ideas in it. I love the engineering that goes into stuff like this to deal with restrictions placed by sanctioning bodies. Most of this is cut and paste out of the email he sent it to me in.

http://www.patooyee.com/miscpics/2010%20Racing%20Engine.jpeg

-Dry sump
-Direct injection
-E85
-550 hp through two 34mm (last I knew...) restrictors
-180 degree firing duration, two cylinders fire at a time instead of 1 every 90 degrees like we are used to. The crank looks like a four cylinder crank. That's what give those engines the super deep and thunderous exhaust note
-1 7/8" primaries and a tri-Y long tube header, this along with the firing order make for awesome scavenging.
-It has a 4.1xx bore and a 3.1-3.3" stroke crank which make it super efficient and fast rev'ing.
-5.5L displacement.
-Each runner has its own throttle blade, the entire air induction system is carbon fiber.
-The plenums are above the heads and you can only see about 1/4 of them on the engine, they are massive!
-The engine sits 2-3" lower in the chassis and the top clearance is for the huge intake sys.
-Highly modified cylinder heads, you can see the plugs for the water jacket, they are used to seal off the provisions for the water jacket core printing which allows for a super precise casting.
-All structural castings are low pressure cast and cost 3-4 times more than a typical casting.
-belt driven cam drive


When I first saw the pic I immediately noticed how different the block looked but couldn't place exactly why. He explained to me that "the skirt that hangs below the crank CL has been machined off and a cast girdle that doubles as the dry sump pan has been fitted to cap the bottom of the engine. Add 1" to the skirt on an oem block and that'll give you an idea of how compact that engine is."

Very cool stuff, IMHO.

J. J.

Did you find out how much one would cost??? :)

Be nice to see a ccouple of turbos strapped to one of these engiens. :)

Chris.

He gave me a rough idea but specifically asked me not to post it. Sorry.

J. J.

Can you outright purchase the engines or do you have to lease them?.....

They are not for sale or purchase. Its a one-off.

This from the corvette team who switched down to GT2 where they could compete against a more difficult field like porsche and ferrari because GT1 was too easy for them...:usa:

5.5L...direct injection...I think this is the first look at the new GEN V LS engine....

They need to have a second one built just to put in a museum....this thing IS a work of art

They need to have a second one built just to put in a museum....this thing IS a work of art

That's the joy of working for race teams. You can build whatever is needed! Have you seen some of the motoGP bike stuff? It's a work of art! And f1 or GT racing is the same. The level of craftsmanship is second to none.

Even things like turbos becomes worms of art. The t30r (i think) from garrett is over $10,000 and it's only a 500bhp turbo. But the efficiency and fine terence of the blade to housing clearances are what cost the money. As has been said there is probably no amount of money that could get someone one of these engines. That's simply because of the countless hours of r&d that's gone into it. Plus these engines are constant work in progress. In 6 months there will be several new components on the engine to make it run better. :)

I envy the guts that work on, build and race things like this.....but in a good way lol :)

where do the injectors go into the head?

That thing is a work of art. Beautiful.

5.5L...direct injection...I think this is the first look at the new GEN V LS engine....

Yep, or at least the concept.

Do the math for displacement on an engine with the 6.2L bore and the 4.8L crank.

Hmmm.

http://www.corvetteracing.com/2012-specifications.shtml

5.5L...direct injection...I think this is the first look at the new GEN V LS engine....

+1

:usa:

I want to hear that flat plane crank in an LSX.

Dear god, If this is a prototype, I hope that crank carries into the production C7.

I want to hear that flat plane crank in an LSX.

Dear god, If this is a prototype, I hope that crank carries into the production C7.

Think exotic Italian on steroids :)

Am I the only one who noticed the oil pump in this engine?

Wonder why they used AN fittings rather than Wiggins clamps....

Am I the only one who noticed the oil pump in this engine?

Belt driven?

Wonder why they used AN fittings rather than Wiggins clamps....

No clue. Do they normally use Wiggins or something? Is there something wrong with AN? My rig is covered in AN fittings. I probably have $3000 worth of just AN fittings in my rig and I keep another $1000 worth in my toolbox just for trail repairs.

+1

:usa:
Same guy who sent me all this has talked to me a little about the Gen V's and what he has seen going on with them. He doesn't like them for many reasons, has made mention that the Gen IV's will be the last of the GM engines that the aftermarket will want. I forget all of what he has said, but he hates them for some reason.

Same guy who sent me all this has talked to me a little about the Gen V's and what he has seen going on with them. He doesn't like them for many reasons, has made mention that the Gen IV's will be the last of the GM engines that the aftermarket will want. I forget all of what he has said, but he hates them for some reason.

I foresee many modded C6's outrunning C7's

Belt driven?



No clue. Do they normally use Wiggins or something? Is there something wrong with AN? My rig is covered in AN fittings. I probably have $3000 worth of just AN fittings in my rig and I keep another $1000 worth in my toolbox just for trail repairs.

Theres nothing wrong with AN fittings by any means....Most Larger teams in all forms of racing have been using wiggins for awhile... You dont need tools..which means no need to get a wrench someplace it barely fits...which takes time.. precious time in most cases....they wont cross thread.... there is no 37 degree flange to worry about sealing up on....they are lighter... draw backs are cost... that 4000 dollar total you mentioned would be quite a bit higher with wiggigns also you cant make your own lines..they have to be made with a crimping machine...

Pretty cool stuff, thanks for posting.

I want to hear that flat plane crank in an LSX.

Dear god, If this is a prototype, I hope that crank carries into the production C7.

http://www.lingenfelter.com/LPEforumfiles/showthread.php?904-More-Flat-Plane-Action-Lingenfelter-Race-Engine-Dyno-Video

Same guy who sent me all this has talked to me a little about the Gen V's and what he has seen going on with them. He doesn't like them for many reasons, has made mention that the Gen IV's will be the last of the GM engines that the aftermarket will want. I forget all of what he has said, but he hates them for some reason.

any specifics or is it just "its new so no one will like it" like with the end of the LT1?

Its just been a long time since he talked to me about it and I don't recall what he said. I recall something about plastic internal engine components and an ECM that would be nearly impossible to hack into for some reason. I'll ask him to see if he can divulge any more info.

an ECM that would be nearly impossible to hack into for some reason.

That's what they said about the GTR ECU before they came out.

http://jalopnik.com/377411/unmoddable-gt+r-ecu-cracked-bye+bye-speed-limiter

Did anyone notice the Water Pump ? Reverse rotation , exactly what I need for my swap . Is this available anywhere ? I want one !

All ls water pumps are reverse rotation...

Pretty interesting setup

All ls water pumps are reverse rotation...

OK Genius, how about reverse rotation from what the usual rotation on LS engines is. Does this make you happy ?

This Engines Water pump is clearly driven off the inside ribbed portion of the belt. This would be so much simpler as I am only running a Alternator.

OK Genius, how about reverse rotation from what the usual rotation on LS engines is. Does this make you happy ?

This Engines Water pump is clearly driven off the inside ribbed portion of the belt. This would be so much simpler as I am only running a Alternator.

For $1500 you can have a standard rotation pump and alternator, https://www.circletracksupply.com/images/P/400%20KRC_CT525_Dirt_Water_Only.jpg

Or run an electric pump and don't worry about the belt.

siiiiickness!!!!!!! thanks for posting

http://gmauthority.com/blog/2012/10/this-is-gms-next-gen-v8-small-block-engine-the-lt1/

http://gmauthority.com/blog/wp-content/uploads/2012/10/2014-6.2L-V8-VVT-DI-LT1-COR-FE-Blk-Wht2-582x465.jpg

Is it just me or does 450 hp seem anemic compared to the current offerings and the general expectations of VVT and DI?

http://gmauthority.com/blog/2012/10/this-is-gms-next-gen-v8-small-block-engine-the-lt1/

[img]http://gmauthority.com/blog/wp-content/uploads/2012/10/2014-6.2L-V8-VVT-DI-LT1-COR-FE-Blk-Wht2-582x465.jpg

Is it just me or does 450 hp seem anemic compared to the current offerings and the general expectations of VVT and DI?

is it me or did you not read the release... :jest:

the 450 number is NOT an official power rating.

since this is advanced engine..

i cant wait to see what the potential insanity these engines will bring. i want to see what these heads look like on the inside, the oil galleries, and how good the "stock canted valve" heads really are. the l92 heads, intake, etc was all out before the engine and the cars/vehicles that had them. anyone have word on these things?

Even though the advertised peak ratings aren't 500+ the new lt1 will be making 50+ftlbs under the curve in some areas, giving the bet of both worlds with a high peak and nice low end all while matching the current LS engine's mpg...GM went the route of making the engine more efficient as well as more power (450/450 compared to 436/428 ls3)...so while I'm not a fan of the lt1 the technology is way ahead of other companies v8s...long live the chevy small block!

Thanks, MSURacing thats exactly what I have been looking for . Looks like the waterpump alone can be had for around $450.00 I can build the rest. After another search even Edelbrock is building one too. Stan.