Forced Induction Superchargers | Turbochargers | Intercoolers

774/774 dyno sheet

Thread Tools
 
Search this Thread
 
Old Jan 19, 2004 | 08:56 PM
  #1  
qqwqeqwrqwqtq's Avatar
Thread Starter
FormerVendor
 
Joined: Dec 2001
Posts: 2,444
Likes: 2
From: WWW.SPEEDINC.COM
Default 774/774 dyno sheet

A few people asked if I would post a dyno sheet. Here is the latest run on my single turbo LT1 with 20psi boost, through a full exhaust.

www.ls1speed.com/artwork/jimdyno.jpg
Reply
Old Jan 19, 2004 | 09:10 PM
  #2  
XLR8NSS's Avatar
Adkoonerstrator
iTrader: (4)
 
Joined: Nov 2001
Posts: 21,420
Likes: 0
From: Deep in the seedy underworld of Koonerville
Default

Originally Posted by INTMD8
A few people asked if I would post a dyno sheet. Here is the latest run on my single turbo LT1 with 20psi boost, through a full exhaust.

www.ls1speed.com/artwork/jimdyno.jpg
And all that before 6000rpm, I like it.

That graph almost looks like a centrifugal supercharger graph. When do you see full boost?
Reply
Old Jan 19, 2004 | 10:11 PM
  #3  
blackz93's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: May 2003
Posts: 1,661
Likes: 1
From: nc
Default

yeah, it looks like your max torque would be a little lower on the graph than that...
Reply
Old Jan 19, 2004 | 11:36 PM
  #4  
Pro Stock John's Avatar
LS1Tech Co-Founder
20 Year Member
Community Influencer
iTrader: (34)
 
Joined: Nov 2001
Posts: 45,326
Likes: 1,767
From: Chicago, IL
Default

Jimmay where did you find more power?
Reply
Old Jan 19, 2004 | 11:46 PM
  #5  
BIGBOS's Avatar
TECH Senior Member
 
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
Default

Maybe a downpipe change?
Reply
Old Jan 19, 2004 | 11:56 PM
  #6  
y2khawk's Avatar
TECH Veteran
iTrader: (5)
 
Joined: Nov 2001
Posts: 4,491
Likes: 1
From: Olmsted Falls, OH
Default

Originally Posted by Pro Stock John
Jimmay where did you find more power?
He just turned that "happy customer ****", like when they dyno'd yours



hehehe
Reply
Old Jan 19, 2004 | 11:57 PM
  #7  
qqwqeqwrqwqtq's Avatar
Thread Starter
FormerVendor
 
Joined: Dec 2001
Posts: 2,444
Likes: 2
From: WWW.SPEEDINC.COM
Default

It made a little more power because this run was at 20psi instead of the previous 19. Not really worthy of a new post, but this is the first opportunity I had to post a graph.

I'm using a big (1.32) exhaust housing to bring in the boost a little slower for better traction on the street. On a good concrete road, hooking up on radials isn't a problem if I drive it right.
Reply
Old Jan 20, 2004 | 05:09 AM
  #8  
SS00Blue's Avatar
TECH Fanatic
 
Joined: Mar 2002
Posts: 1,044
Likes: 0
Default

I guess "ole skool" still works plenty!

Congratulations on exceptional numbers. Did you use any coatings on the pistons, bearings, etc.?
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 Jan 20, 2004 | 05:39 AM
  #9  
smokinHawk's Avatar
TECH Senior Member
iTrader: (48)
 
Joined: Jan 2002
Posts: 7,354
Likes: 1
From: Columbus, ohio
Default

ya with that 1.32 exhaust housing, it takes a while for the turbo to spool, you can see it on the graph.
least it isnt as bad as a supras.
when do you see your full boost.
and what size turbo again?

heck if you put a cutout after the downpipe i bet you'd see 800rwhp
Reply
Old Jan 20, 2004 | 08:23 AM
  #10  
Noyzee's Avatar
8 second mod
iTrader: (37)
 
Joined: Nov 2002
Posts: 17,879
Likes: 1
From: East Side Performance! mASShole
Default

Sweet deal, cant wait to see some more time's come spring. good luck!
Reply
Old Jan 20, 2004 | 08:46 AM
  #11  
LS1 BU's Avatar
TECH Resident
iTrader: (13)
 
Joined: Apr 2002
Posts: 865
Likes: 0
From: South Elgin
Default

Congrats Jim. You keep pushing the bar higher. Almost makes me want a LT1
Reply
Old Jan 20, 2004 | 09:57 AM
  #12  
gator's 99TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Nov 2001
Posts: 9,971
Likes: 2
From: Tampa Bay
Default

goodness, why are you running full exhaust? just to tease us? lol, very nice results.
Reply




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