LS3 engine specs released today...... 436HP
TECH Fanatic
Joined: Mar 2004
Posts: 1,017
Likes: 0
From: Laguna Niguel, CA
Originally Posted by 2000Firehawk
LS7 intake flow = 330 cfm
L92 intake flow = 300 cfm
MAF is built in like the LS7 has...
black box = is a airbox bellows like LS1 f-bodies have..
L92 intake flow = 300 cfm
MAF is built in like the LS7 has...
black box = is a airbox bellows like LS1 f-bodies have..
Built in where? The Airbox or the TB?
And to the person who said something about LS7 volume for the intake, what do you mean by that? Do you mean that a larger volume in the intake manifold can help power?
Launching!
Joined: Dec 2003
Posts: 251
Likes: 2
From: Portland OR
That intake looks different than the L76 - good news for all you L92 fans, it's almost certainly tuned to a higher RPM than the L76.
Edit: Oops, just reread the part about an "acoustic shell" over the intake - that would make it look different in any case. Still, I would hope it's different/better ...
Edit: Oops, just reread the part about an "acoustic shell" over the intake - that would make it look different in any case. Still, I would hope it's different/better ...
MAF appears to be built into the air bridge ahead of the accordion tube. I see a screw on the side, probably where the sensor is held in. Aftermarket air bridges will just have a hole on the side to stick the MAF sensor into.
TECH Fanatic
Joined: Aug 2005
Posts: 1,691
Likes: 1
From: Sunny London, UK
Sounds like standard L92 heads on it going by valve sizes. Just with the uprated hollow stem stuff. Maybe with sodium filled.
Who is going to buy one and pull it apart with pics for us to drool over!?
Who is going to buy one and pull it apart with pics for us to drool over!?
TECH Addict
Joined: Jul 2002
Posts: 2,261
Likes: 0
Originally Posted by ringram
Sounds like standard L92 heads on it going by valve sizes. Just with the uprated hollow stem stuff. Maybe with sodium filled.
Who is going to buy one and pull it apart with pics for us to drool over!?
Who is going to buy one and pull it apart with pics for us to drool over!?
Breathing for the new 6.2L engine is accomplished via new, high-flow cylinder heads. They’re based on the large port/large valve design found on the LS7 engine and other GM L92 engines, with larger-capacity, straighter intake ports. The design optimizes intake flow to the combustion chamber and the exhaust ports are also designed for better flow.
TECH Addict
Joined: Jul 2002
Posts: 2,261
Likes: 0
Originally Posted by 71CamaroLS1
That intake looks different than the L76 - good news for all you L92 fans, it's almost certainly tuned to a higher RPM than the L76.
Edit: Oops, just reread the part about an "acoustic shell" over the intake - that would make it look different in any case. Still, I would hope it's different/better ...
Edit: Oops, just reread the part about an "acoustic shell" over the intake - that would make it look different in any case. Still, I would hope it's different/better ...
Ensuring the cylinder heads receive all the air they can handles falls to a new, acoustically tuned intake manifold. The composite design is manufactured with a “lost core” process that improves runner to runner variation and reduces airflow losses.
Joined: Nov 2006
Posts: 707
Likes: 1
From: Right across the river from Huntington, WV
Man that's gonna be one helluva motor. I can only imagine what kind of #'s it'll put out with just a cam/valvetrain upgrade, headers/exhaust, and a tune!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Thread Starter
TECH Enthusiast
iTrader: (248)
Joined: Dec 2001
Posts: 570
Likes: 0
From: Pittsburgh , PA
Breathing for the new 6.2L engine is accomplished via new, high-flow cylinder heads. They’re based on the large port/large valve design found on the LS7 engine and other GM L92 engines, with larger-capacity, straighter intake ports. The design optimizes intake flow to the combustion chamber and the exhaust ports are also designed for better flow.
Me wonders if we've got a brand new cylinder head on the LS3...
If this is a new/better casting than the L76/L92 casting , mods on the LS3 will prove awesome...:yesnod:
Me wonders if we've got a brand new cylinder head on the LS3...
If this is a new/better casting than the L76/L92 casting , mods on the LS3 will prove awesome...:yesnod:
Last edited by 2000Firehawk; Apr 28, 2007 at 06:03 PM.
Originally Posted by 11 Bravo
And what is the black box in front of the passanger side fuel rail cover?
TECH Fanatic
Joined: Mar 2004
Posts: 1,017
Likes: 0
From: Laguna Niguel, CA
Originally Posted by Nine Ball
MAF appears to be built into the air bridge ahead of the accordion tube. I see a screw on the side, probably where the sensor is held in. Aftermarket air bridges will just have a hole on the side to stick the MAF sensor into.
So are the new MAF's a lot different than the whole 'encased' MAFs from the Fbodys and LS1s?
TECH Regular
Joined: Nov 2001
Posts: 470
Likes: 0
From: Plano, Tx.
Originally Posted by NO-OPTION-2002
Remember guys, the LS2 had "NEW HEADS" as well... 
I think it's L92 heads with hollow valves and a L76 intake with a noise-reducing shell over it. Somebody will have to take off the shell to see if the intake is a L76 intake.
Staging Lane
Joined: Dec 2005
Posts: 92
Likes: 0
From: New Jersey
Originally Posted by amwellls1
Think I will have to wait for an 08, interesting
TECH Addict
Joined: Jul 2002
Posts: 2,261
Likes: 0
Originally Posted by Cobraeater
Exactly, the heads and intake are new to the Corvette in the GM press release doesn't mean they haven't been used already in the trucks and in Australia.
I think it's L92 heads with hollow valves and a L76 intake with a noise-reducing shell over it. Somebody will have to take off the shell to see if the intake is a L76 intake.
I think it's L92 heads with hollow valves and a L76 intake with a noise-reducing shell over it. Somebody will have to take off the shell to see if the intake is a L76 intake.
....i mean i have mac mids, LS6 int, MSD wires, lid, y pipe, and a cam w/a tune...but still