Advanced Engineering Tech For the more hardcore LS1TECH residents

2010 - 2011 Corvette Racing LS7-based engine

Thread Tools
 
Search this Thread
 
Old Apr 22, 2012 | 10:06 AM
  #1  
patooyee's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Sep 2009
Posts: 228
Likes: 0
From: Gulf Breeze, FL
Default 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.



-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.

Last edited by patooyee; Apr 22, 2012 at 10:50 AM.
Reply
Old Apr 23, 2012 | 06:58 AM
  #2  
chuntington101's Avatar
TECH Addict
 
Joined: Aug 2004
Posts: 2,866
Likes: 4
Default

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

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

Chris.
Reply
Old Apr 23, 2012 | 09:15 AM
  #3  
patooyee's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Sep 2009
Posts: 228
Likes: 0
From: Gulf Breeze, FL
Default

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

J. J.
Reply
Old Apr 25, 2012 | 06:56 AM
  #4  
chuntington101's Avatar
TECH Addict
 
Joined: Aug 2004
Posts: 2,866
Likes: 4
Default

Can you outright purchase the engines or do you have to lease them?.....
Reply
Old Apr 25, 2012 | 09:05 AM
  #5  
patooyee's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Sep 2009
Posts: 228
Likes: 0
From: Gulf Breeze, FL
Default

They are not for sale or purchase. Its a one-off.
Reply
Old Apr 30, 2012 | 03:31 PM
  #6  
IceHammer's Avatar
Teching In
 
Joined: Nov 2008
Posts: 23
Likes: 0
Default

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...
Reply
Old May 2, 2012 | 07:26 AM
  #7  
bww3588's Avatar
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default

5.5L...direct injection...I think this is the first look at the new GEN V LS engine....
Reply
Old May 4, 2012 | 08:35 AM
  #8  
mark21742's Avatar
TECH Addict
 
Joined: Sep 2009
Posts: 2,481
Likes: 5
From: PA/MD
Default

They need to have a second one built just to put in a museum....this thing IS a work of art
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-1

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-2

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-3

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-4

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-5

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-6

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-7

10 Camaros You Should Never Buy

 
story-8

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-9

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
Old May 6, 2012 | 01:50 PM
  #9  
chuntington101's Avatar
TECH Addict
 
Joined: Aug 2004
Posts: 2,866
Likes: 4
Default

Originally Posted by mark21742
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.
Reply
Old May 8, 2012 | 08:09 AM
  #10  
mark21742's Avatar
TECH Addict
 
Joined: Sep 2009
Posts: 2,481
Likes: 5
From: PA/MD
Default

I envy the guts that work on, build and race things like this.....but in a good way lol
Reply
Old May 11, 2012 | 12:14 AM
  #11  
Wnts2Go10O's Avatar
TECH Veteran
iTrader: (12)
 
Joined: Dec 2004
Posts: 4,354
Likes: 0
From: Rockville, MD
Default

where do the injectors go into the head?
Reply
Old May 11, 2012 | 12:05 PM
  #12  
ThirdGenDemon's Avatar
Teching In
iTrader: (4)
 
Joined: Sep 2011
Posts: 39
Likes: 0
From: Houston, TX
Default

That thing is a work of art. Beautiful.
Reply
Old May 26, 2012 | 09:57 AM
  #13  
Old SStroker's Avatar
TECH Fanatic
 
Joined: Jun 2002
Posts: 1,979
Likes: 3
From: Upstate NY
Default

Originally Posted by bww3588
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.
Reply
Old Jun 17, 2012 | 05:40 PM
  #14  
Black_Phantom's Avatar
On The Tree
 
Joined: Apr 2006
Posts: 118
Likes: 0
Default

http://www.corvetteracing.com/2012-specifications.shtml
Reply
Old Jul 1, 2012 | 05:21 PM
  #15  
_GTO_'s Avatar
On The Tree
 
Joined: Jan 2010
Posts: 124
Likes: 0
From: San diego , CA
Default

Originally Posted by bww3588
5.5L...direct injection...I think this is the first look at the new GEN V LS engine....
+1

Reply
Old Jul 3, 2012 | 06:27 AM
  #16  
409CISecondGen's Avatar
TECH Regular
iTrader: (2)
 
Joined: Jan 2009
Posts: 496
Likes: 7
From: San Antonio
Default

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.
Reply
Old Jul 3, 2012 | 08:52 AM
  #17  
mark21742's Avatar
TECH Addict
 
Joined: Sep 2009
Posts: 2,481
Likes: 5
From: PA/MD
Default

Originally Posted by 409CISecondGen
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
Reply
Old Jul 5, 2012 | 01:15 PM
  #18  
germeezy1's Avatar
TECH Enthusiast
 
Joined: Feb 2007
Posts: 686
Likes: 0
From: Seattle area
Default

Am I the only one who noticed the oil pump in this engine?
Reply
Old Jul 8, 2012 | 09:45 AM
  #19  
CTSmechanic's Avatar
TECH Resident
iTrader: (2)
 
Joined: Nov 2004
Posts: 860
Likes: 1
From: Denver NC
Default

Wonder why they used AN fittings rather than Wiggins clamps....
Reply
Old Jul 8, 2012 | 10:58 AM
  #20  
patooyee's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Sep 2009
Posts: 228
Likes: 0
From: Gulf Breeze, FL
Default

Originally Posted by germeezy1
Am I the only one who noticed the oil pump in this engine?
Belt driven?

Originally Posted by CTSmechanic
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.

Last edited by patooyee; Jul 8, 2012 at 11:07 AM.
Reply



All times are GMT -5. The time now is 07:17 PM.

story-0
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-1
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-2
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-3
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-4
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-5
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-6
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-7
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-8
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-9
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE