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

low compression engine help

Thread Tools
 
Search this Thread
 
Old May 17, 2007 | 06:06 PM
  #1  
Blank's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2004
Posts: 64
Likes: 0
Default low compression engine help

i have an ls1 with forged internals,lq9. ported heads,gt2-3 cam and a procharger.If i removed the procharger and retuned would i have lower than stock hp numbers?The compression is 9 5 to 1
Reply
Old May 17, 2007 | 06:23 PM
  #2  
Blank's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2004
Posts: 64
Likes: 0
Default

someone has had to do this before
Reply
Old May 17, 2007 | 06:25 PM
  #3  
Noyzee's Avatar
8 second mod
iTrader: (37)
 
Joined: Nov 2002
Posts: 17,879
Likes: 1
From: East Side Performance! mASShole
Default

yes it would be lower.
lower compression with heavyer rotating assembly will deffinetly be lower hp
Reply
Old May 17, 2007 | 06:27 PM
  #4  
Blank's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2004
Posts: 64
Likes: 0
Default

lower than stock?
Reply
Old May 17, 2007 | 06:29 PM
  #5  
Noyzee's Avatar
8 second mod
iTrader: (37)
 
Joined: Nov 2002
Posts: 17,879
Likes: 1
From: East Side Performance! mASShole
Default

hard to say that. the cam andported heads will help, but the lower compression kills it and heavy parts. it may not be "as low as stock" but it probably wont be no 400 hp monster.
Reply
Old May 17, 2007 | 06:43 PM
  #6  
Blank's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2004
Posts: 64
Likes: 0
Default

it ran 10.60 with the procharger and 50 shot of nitrous would it be close to that with a 200 shot
Reply
Old May 17, 2007 | 11:16 PM
  #7  
Blank's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2004
Posts: 64
Likes: 0
Default

anyone else had a low compression engine without forced induction?
Reply
Old May 18, 2007 | 07:12 AM
  #8  
Noyzee's Avatar
8 second mod
iTrader: (37)
 
Joined: Nov 2002
Posts: 17,879
Likes: 1
From: East Side Performance! mASShole
Default

Originally Posted by Blank
it ran 10.60 with the procharger and 50 shot of nitrous would it be close to that with a 200 shot
with 200 shot im sure she would run well
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 May 18, 2007 | 01:26 PM
  #9  
tilly's Avatar
TECH Apprentice
15 Year Member
iTrader: (5)
 
Joined: Apr 2006
Posts: 317
Likes: 0
From: KC:K
Default

Why are you ditching the procharger (sorry i am curious)
Reply
Old May 18, 2007 | 01:42 PM
  #10  
Blank's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2004
Posts: 64
Likes: 0
Default

getting rid of the car soon
Reply




All times are GMT -5. The time now is 05:08 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