Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Only 338 RWHP?

Thread Tools
 
Search this Thread
 
Old Sep 16, 2006 | 10:42 AM
  #21  
99ccz28's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Dec 2005
Posts: 548
Likes: 0
From: butler, pa
Default

Maybe i missed something maybe he has shorty headers and not long tubes? If so that would have somthing to do with it.
Reply
Old Sep 16, 2006 | 10:45 AM
  #22  
Doomsday's Avatar
TECH Enthusiast
20 Year Member
iTrader: (8)
 
Joined: Aug 2005
Posts: 651
Likes: 0
From: Cypress, TX
Default

Originally Posted by Studytime
He posted this because he's looking for his lost power and for help. Doomsday, even if this was the STOCK cam power numbers should be better than that.


Ben T.
I know, just the fact its open to suggestions and " " when someone post a comment.
Reply
Old Sep 16, 2006 | 12:05 PM
  #23  
GR33N GoblinM6's Avatar
TECH Addict
iTrader: (14)
 
Joined: Jan 2005
Posts: 2,301
Likes: 1
From: Utah
Default

Originally Posted by Azrael
Uhhh... No Dynapak dynos usually read higher, YMMV. Unless they have been calibrated to be more conservative which is supposed to be close to a DynoJet.

Mustang Dynos usually are the most conservative...

Negative on that... DynaPacks read lower than mustang dyno's.. not by much.. but they do. My best friend/neighbor owns a dynaPack. I run the machine..most of the time, we were both trained on it, by Dynapack themselves (they fly out and train you for 2 days). We have done back to back testing with our dyno and a local mustang and a local DynoJet.

DynaPack is consistent every time, and read lower, mustang read a tad higher and was pretty consistant.. DynoJet was all over the place.. plus we can fudge those #'s pretty easily to get higher hp ratings. Cant fool a DynaPack since your hubs are directly connected to the machine itself and it uses fluid dynamics to measure torque then calculates HP.
Reply
Old Sep 16, 2006 | 12:58 PM
  #24  
cav101's Avatar
Launching!
iTrader: (10)
 
Joined: Jul 2005
Posts: 230
Likes: 1
Default

^
weRd......
Reply
Old Sep 16, 2006 | 12:59 PM
  #25  
Bo White's Avatar
TECH Addict
20 Year Member
iTrader: (59)
 
Joined: Oct 2004
Posts: 2,357
Likes: 0
From: Vance, Alabama
Default

I made 330/347rwhp/tq in a 98 A4 Z28 with stock heads, 218/222 cam, shorties, lid, ported TB, LS1 intake, stock converter, pulley, ORY, and stock catback.
Reply
Old Sep 16, 2006 | 02:21 PM
  #26  
Azrael's Avatar
10 Second Club
iTrader: (10)
 
Joined: Feb 2004
Posts: 1,212
Likes: 0
From: Manteca, CA
Default

Originally Posted by GR33N GoblinM6
Negative on that... DynaPacks read lower than mustang dyno's.. not by much.. but they do. My best friend/neighbor owns a dynaPack. I run the machine..most of the time, we were both trained on it, by Dynapack themselves (they fly out and train you for 2 days). We have done back to back testing with our dyno and a local mustang and a local DynoJet.

DynaPack is consistent every time, and read lower, mustang read a tad higher and was pretty consistant.. DynoJet was all over the place.. plus we can fudge those #'s pretty easily to get higher hp ratings. Cant fool a DynaPack since your hubs are directly connected to the machine itself and it uses fluid dynamics to measure torque then calculates HP.
If you want to remain delusional then I am not going to be able to convince you.

I wish it were true though, but its not. Sorry for the threadjacking!

I agree with the other posters though, that you need to get the car to the track. Dynos are only tuning tools, the real measurement is on a timeslip. If the car is running good i the 1320 then it is fine, take it somewhere else and get dynoed for peice of mind.
Reply
Old Sep 16, 2006 | 03:41 PM
  #27  
s346k's Avatar
TECH Junkie
iTrader: (4)
 
Joined: May 2005
Posts: 3,433
Likes: 1
From: johnson co.
Default

Originally Posted by jpr210
Dynojet, engine is a 2001 z28ss motor. Short block is clean, no smoke, oil use or noises.

Jpr
i found your problem, you're not using an ls1.

do you have a graph? i agree that dynos are tuning tools, nothing more.

i'd guess my car to come up ~310 rwhp unlocked on a dynojet, but that means nothing as the car consistently runs 12.2s @ 108/9 dragging 3,500 lbs.

as long as the a/f is ok, take it to the track and see what you come up with before you get too worried.
Reply
Old Sep 16, 2006 | 03:54 PM
  #28  
Louie83's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Jun 2004
Posts: 1,844
Likes: 0
From: Dayton, OH
Default

You still haven't stated whether you are M6 or A4.

Your numbers still seem low. I've seen stock 01 and 02's dyno not much less than you on Dynojets.
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 Sep 16, 2006 | 05:16 PM
  #29  
dschmittie1's Avatar
10 Second Club
iTrader: (64)
 
Joined: Aug 2005
Posts: 2,344
Likes: 2
From: York, PA
Default

the LS6 cam is 204/214 550"/549" I made 360rwhp untuned throught stock heads and bolt ons on a dynojet in the hot sun on a trailer in the middle of a parking lot in June. Granted I Also had the 1.8 rockers which make my like 583"/579" That does seem low to me Althought the lift on that cam is pretty small
Reply
Old Sep 16, 2006 | 05:38 PM
  #30  
jermzz's Avatar
TECH Fanatic
iTrader: (18)
 
Joined: Oct 2004
Posts: 1,205
Likes: 0
From: Bay area, ca.
Default

Originally Posted by GR33N GoblinM6
Negative on that... DynaPacks read lower than mustang dyno's.. not by much.. but they do. My best friend/neighbor owns a dynaPack. I run the machine..most of the time, we were both trained on it, by Dynapack themselves (they fly out and train you for 2 days). We have done back to back testing with our dyno and a local mustang and a local DynoJet.

DynaPack is consistent every time, and read lower, mustang read a tad higher and was pretty consistant.. DynoJet was all over the place.. plus we can fudge those #'s pretty easily to get higher hp ratings. Cant fool a DynaPack since your hubs are directly connected to the machine itself and it uses fluid dynamics to measure torque then calculates HP.
Then you were trained to calibrate the dynapack for the numbers to be on par with other chasis dynos. It's not physically possible for a car to dyno less power when you remove the tires, simple laws of physics. You're eliminating 50lbs + of rotating mass. I've had my car on a dynapack and a dynojet. considerable difference in power in favor of the dynapack. When configued properly, the dynapack will read preet close to that of a dyno jet. The more power you make, the more vast the differences between a roller dyno and a load dyno like the dynapack will be

bottom line is that a roller dyno reads at the wheels and a dynapack reads at the axels. A roller dyno will never read as high as a dynapack or other similar dynos.

If you dont beleive me, here's a website with the actual math to prove it.

http://home.earthlink.net/~spchurch/...ting/id12.html

Last edited by jermzz; Sep 16, 2006 at 06:52 PM.
Reply




All times are GMT -5. The time now is 08:29 PM.

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