Dynamometer Results & Comparisons Dyno Records | Dyno Discussion | Dyno Wars

Got to the dyno...Thoughts?

Thread Tools
 
Search this Thread
 
Old Apr 26, 2008 | 09:30 AM
  #1  
666 speed's Avatar
Thread Starter
math > me
iTrader: (4)
 
Joined: Jan 2006
Posts: 124
Likes: 0
Default Got to the dyno...Thoughts?

I know it's probably not the smartest idea to start with a cam and I didn't go into it expecting unrealistic numbers for an otherwise stock car.

2004 GTO M6 39,XXX miles

TSP 233/239 .595/.603 112
Patriot Gold dual .650 springs kit
Hardened 7.400 pushrods
LS2 timing chain
K&N in the box filter
and a tune.

First dyno pull 277/271 with a basic tune. After tuning, we showed hp and tq gains through the entire RPM range, but ended with 326/312 at the wheels.

Thoughts? I'm not looking for advice on what to do next. Thanks!
Reply
Old Apr 26, 2008 | 11:07 AM
  #2  
Fabrizi's Avatar
On The Tree
iTrader: (1)
 
Joined: Aug 2007
Posts: 125
Likes: 0
From: DFW
Default

Headers?
Reply
Old Apr 26, 2008 | 11:21 AM
  #3  
666 speed's Avatar
Thread Starter
math > me
iTrader: (4)
 
Joined: Jan 2006
Posts: 124
Likes: 0
Default

Originally Posted by Fabrizi
Headers?
Nope. Everything else is stock. Just an FYI for anyone who considers that cam on a stock LS1.

I know the exhaust is choking it up pretty good.
Reply
Old Apr 26, 2008 | 06:11 PM
  #4  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

Was the 277 before the cam?
Reply
Old Apr 26, 2008 | 06:43 PM
  #5  
PewterScreaminMach's Avatar
TECH Addict
iTrader: (7)
 
Joined: Sep 2006
Posts: 2,628
Likes: 2
From: Austin, TX
Default

Huh, my dad's bone stock 2004 GTO M6 put down 300 hp to the wheels and a little under 300 rwtq, so I suppose with NO other mods, a cam-only might yield those results. Sounds like it was really weak untuned, though.
Reply
Old Apr 26, 2008 | 06:56 PM
  #6  
WKMCD's Avatar
TECH Junkie
iTrader: (2)
 
Joined: Mar 2005
Posts: 3,416
Likes: 2
From: Northern VA
Default

I think this is a case where LT's will show a huge improvement. That's a pretty bad choice of cam for stock manifold back exhaust.
Reply
Old Apr 27, 2008 | 09:05 AM
  #7  
666 speed's Avatar
Thread Starter
math > me
iTrader: (4)
 
Joined: Jan 2006
Posts: 124
Likes: 0
Default

Thanks. I didn't know what I really thought about the results. The lady who ran the dyno said that '04 GTO's had been putting down ~250 stock on her dyno. I don't know if I believe that or not though.
Reply
Old Apr 27, 2008 | 10:27 AM
  #8  
98camaroLS1M6's Avatar
TECH Addict
iTrader: (35)
 
Joined: Dec 2005
Posts: 2,373
Likes: 0
From: Cherry Hill, NJ
Default

mustang dyno? How does the car feel on the street?
Reply
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 Apr 27, 2008 | 11:57 AM
  #9  
666 speed's Avatar
Thread Starter
math > me
iTrader: (4)
 
Joined: Jan 2006
Posts: 124
Likes: 0
Default

Originally Posted by 98camaroLS1M6
mustang dyno? How does the car feel on the street?
Ahh, I forgot to mention it was on a Mustang dyno. My apologies. The car feels much stronger on the street. I'm pleased with how it runs cam only.

I was just a bit surprised by the numbers. I've heard that a Mustang dyno can show numbers lower than a Dyno Jet. From the base tune to the dyno tune we gained 49hp and 43tq to the wheels and only came up with 326/312.

Last edited by 666 speed; Apr 28, 2008 at 10:15 PM.
Reply
Old Apr 27, 2008 | 12:51 PM
  #10  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

A mustang dyno is a chassis dyno. A 49 HP gain cam only with no boltons is a solid gain. Dont worry about the dyno numbers, some read lower than others.
Reply
Old May 2, 2008 | 11:35 AM
  #11  
snake charmer's Avatar
TECH Fanatic
iTrader: (118)
 
Joined: Sep 2004
Posts: 1,510
Likes: 1
From: The south
Default

cam like that needs to breathe good in and out .
Reply
Old May 2, 2008 | 11:49 AM
  #12  
trukk's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Jun 2005
Posts: 535
Likes: 0
Default

Originally Posted by brad8266
A mustang dyno is a chassis dyno. A 49 HP gain cam only with no boltons is a solid gain. Dont worry about the dyno numbers, some read lower than others.


First time I got my car dyno'd I was 295 on a mustang dyno. Needless to say I was a bit underwhelmed. Then a guy with a procharged z06 got on the same dyno, and pulled a 385. He had 475 numbers on another dynojet, and was pissed.

To the OP, it's all relative. You got some nice gains from your cam

-Chris
Reply
Old May 2, 2008 | 04:14 PM
  #13  
jmdgto's Avatar
On The Tree
 
Joined: Jan 2008
Posts: 196
Likes: 0
From: sc
Default

when you add lt headers your car will explode with new power. like that term. lol
Reply
Old May 2, 2008 | 04:23 PM
  #14  
$750 L98's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jul 2005
Posts: 723
Likes: 1
From: Round Rock, Texas
Default

Well i'm not too dissapointed in my results then, my cam is a 113+3 232/234, with an LQ9/317 heads

Only made 290/380, Looks like headers are next for us - But still strong numbers from your baseline!
Reply
Old May 2, 2008 | 05:45 PM
  #15  
venom ws7's Avatar
11 Second Club
20 Year Member
iTrader: (13)
 
Joined: Jul 2003
Posts: 5,965
Likes: 1
From: EARTH
Default

Those are good numbers on Mustang dyno no Boltons.

the car is screaming for a set of headers.
Reply
Old May 2, 2008 | 05:53 PM
  #16  
Slvr00Bird's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2007
Posts: 1,419
Likes: 0
From: Ashland & Lexington, KY
Default

Originally Posted by brad8266
Dont worry about the dyno numbers, some read lower than others.
+1...
Reply
Old May 2, 2008 | 05:57 PM
  #17  
BlkBird2000's Avatar
TECH Addict
iTrader: (10)
 
Joined: Jul 2006
Posts: 2,786
Likes: 2
From: Wood River, IL
Default

Start putting on them bolt ons and your HP/TQ will sky rocket!
Reply




All times are GMT -5. The time now is 11:48 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