LS1TECH - Camaro and Firebird Forum Discussion

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Cammed LS7 results

Thread Tools
 
Search this Thread
 
Old Dec 29, 2005 | 07:35 PM
Share
  #1  
gollum's Avatar
gollum
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2004
Posts: 1,467
Likes: 9
Default Cammed LS7 results
From HR magazine.
Attached Thumbnails Cammed LS7 results-hrm-sheet.jpg  
Reply
0
Old Dec 29, 2005 | 07:37 PM
Share
  #2  
gollum's Avatar
gollum
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2004
Posts: 1,467
Likes: 9
Default Cammed LS7 results!
From HR Magazine.
Attached Thumbnails Cammed LS7 results-hrm-sheet.jpg  
Reply
0
Old Dec 29, 2005 | 07:46 PM
Share
  #3  
Adrenaline_Z's Avatar
Adrenaline_Z
TECH Resident
 
Joined: Dec 2004
Posts: 845
Likes: 0
From: K-W, Ontario
Default
Seems like they matched up some exhaust parts as well.

600 HP (at the wheels?) all the way up to 6800 RPM - gawd daym.
Reply
0
Old Dec 29, 2005 | 08:05 PM
Share
  #4  
gollum's Avatar
gollum
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2004
Posts: 1,467
Likes: 9
Default
Look at Stage 3's exhaust duration. 335 advertised, 276 @.050

Can anyone figure what Stage 3's Lobe Seperation Angle and Installed Lobe Centerline is?
Last edited by gollum; Dec 29, 2005 at 08:11 PM.
Reply
0
Old Dec 29, 2005 | 08:16 PM
Share
  #5  
FAST FREDDY's Avatar
FAST FREDDY
11 Second Club
 
Joined: Apr 2005
Posts: 172
Likes: 0
From: Tucson, Arizona
Default
these results are based on a engine dyno. this is not rwhp
Reply
0
Old Dec 29, 2005 | 08:28 PM
Share
  #6  
Adrenaline_Z's Avatar
Adrenaline_Z
TECH Resident
 
Joined: Dec 2004
Posts: 845
Likes: 0
From: K-W, Ontario
Default
Still great numbers for the 427.

Torque holds well in the upper range. That's a nice 2500 RPM band of power.

Shift that baby just a touch over 7000 and watch the 11's ease by.
Reply
0
Old Dec 29, 2005 | 08:31 PM
Share
  #7  
MadBill's Avatar
MadBill
TECH Regular
 
Joined: Oct 2005
Posts: 430
Likes: 0
Default
Originally Posted by gollum
Look at Stage 3's exhaust duration. 335 advertised, 276 @.050

Can anyone figure what Stage 3's Lobe Seperation Angle and Installed Lobe Centerline is?
I get 107.75 LCA, installed 2.75 R.
Reply
0

Trending Topics

Old Dec 29, 2005 | 10:27 PM
Share
  #8  
1CAMWNDR's Avatar
1CAMWNDR
TECH Veteran
iTrader: (21)
 
Joined: Nov 2001
Posts: 4,247
Likes: 2
Default
Why did they use such a rediculous split on the Stage 3, and why did they choke it with a 1 3/4 header with a 2.5" collector ?
Put a 238°/248° .610"/.620" 112° LSA + 2° (110° IC) cam in there and a 1 7/8 header with a 3.5" collector!
Reply
0
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Dec 29, 2005 | 10:42 PM
Share
  #9  
Beast96Z's Avatar
Beast96Z
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default
That's gotta be a misprint on the stage 3 cam.
Reply
0
Old Dec 29, 2005 | 10:45 PM
Share
  #10  
DramaFoYoMama's Avatar
DramaFoYoMama
TECH Apprentice
 
Joined: Oct 2004
Posts: 360
Likes: 0
From: Katy, TX
Default
But isn't 276* normal? I noticed that earlier.
Reply
0
Old Dec 30, 2005 | 12:18 AM
Share
  #11  
Ferocity02's Avatar
Ferocity02
TECH Senior Member
iTrader: (60)
 
Joined: Apr 2003
Posts: 9,397
Likes: 4
Default
They used a 233/276 cam? Very interesting.
Reply
0
Old Dec 30, 2005 | 05:17 AM
Share
  #12  
gollum's Avatar
gollum
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2004
Posts: 1,467
Likes: 9
Default
Those two new HOT CAMS from GM, stage 2 and stage3 are soon to be released for the LS7.
Reply
0
Old Dec 30, 2005 | 07:30 AM
Share
  #13  
WS6FirebirdTA00's Avatar
WS6FirebirdTA00
TECH Senior Member
20 Year Member
iTrader: (33)
 
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
Default
this was engine dyno? stock cam with headers a little over 500 seems kinda low seeing it does that bone stock, but then again that much rwhp seems kinda high....
Reply
0
Old Dec 30, 2005 | 09:56 AM
Share
  #14  
Big-DEN's Avatar
Big-DEN
TECH Apprentice
 
Joined: Oct 2004
Posts: 329
Likes: 0
Default
540rwhp == 613HP engine, LGM is already getting this with a "small" camshaft. The TQ curve looks like an overlay of the stock cam, so I imagine the LGM cam was not that much bigger in duration but a more agressive lobe.

233/276@.05" sounds pretty bogus to me.
Reply
0
Old Dec 30, 2005 | 10:11 AM
Share
  #15  
CAT3's Avatar
CAT3
Restricted User
iTrader: (9)
 
Joined: Sep 2002
Posts: 7,603
Likes: 0
From: Sierra Vista, AZ
Default
I agree, why when "testing cams" would you swap headers as well? Should have left the test standard. Nice power though.
Reply
0
Old Dec 30, 2005 | 10:59 PM
Share
  #16  
Greg Fell's Avatar
Greg Fell
TECH Fanatic
20 Year Member
iTrader: (9)
 
Joined: Feb 2002
Posts: 1,126
Likes: 0
From: Morton IL
Default
My guess is the split is not bogus. Look at the stock LS7 cam, 19* of split. The LS7 heads dont have good exhaust ports. I wonder what this would idle like...these hotcams are all like 108* lsa or so...yikes!
Reply
0
Old Dec 31, 2005 | 10:11 AM
Share
  #17  
Bink's Avatar
Bink
TECH Addict
20 Year Member
 
Joined: Jul 2002
Posts: 2,261
Likes: 0
Default
The valve events are wrong on the HR pic.

Example - Stage III @ .050 the Intake opening should be BTDC - Not ATDC. Exhaust closing should be ATDC - Not BTDC.

Also, I believe GM likes asymmetrical lobes so it's hard to pinpoint centerlines.
FWIW.
Reply
0
Old Jan 1, 2006 | 02:35 PM
Share
  #18  
slimcracka's Avatar
slimcracka
TECH Fanatic
iTrader: (7)
 
Joined: Dec 2004
Posts: 1,555
Likes: 0
From: pensacola, fl.
Default
sorry to be off topic but what is the size of the factory ls7 cam??
Reply
0
Old Jan 1, 2006 | 03:14 PM
Share
  #19  
WS6FirebirdTA00's Avatar
WS6FirebirdTA00
TECH Senior Member
20 Year Member
iTrader: (33)
 
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
Default
there are threads floating around with it, i think 211/230
Reply
0
Old Jan 1, 2006 | 04:00 PM
Share
  #20  
Bryan @ Speed Inc.'s Avatar
Bryan @ Speed Inc.
Banned
iTrader: (19)
 
Joined: Jun 2005
Posts: 1,879
Likes: 0
From: chitown
Default
yea the first cam spec'd was the stocker
Reply
0



Advanced Search

All times are GMT -5. The time now is 10:31 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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