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

compression test???wats wrong

Thread Tools
 
Search this Thread
 
Old Jul 16, 2011 | 10:16 PM
  #1  
1964h's Avatar
Thread Starter
Teching In
 
Joined: Mar 2011
Posts: 46
Likes: 0
Default compression test???wats wrong

well i got a lq9 and i did a compression test all cylinders are between 122 to 129.i didnt lap the valves cuz they were new although heads were disassembled.and the motor is still new has around 1,000k
Reply
Old Jul 16, 2011 | 10:20 PM
  #2  
A.R. Shale Targa's Avatar
11 Second Club
iTrader: (2)
 
Joined: Feb 2011
Posts: 3,729
Likes: 15
From: Fredonia,WI
Default

Aftermarket cam ?....more info
Reply
Old Jul 17, 2011 | 03:18 AM
  #3  
amazonic's Avatar
Staging Lane
15 Year Member
iTrader: (2)
 
Joined: Apr 2009
Posts: 57
Likes: 1
From: sweden
Default

pushrod lenght?
Reply
Old Jul 17, 2011 | 09:58 AM
  #4  
1964h's Avatar
Thread Starter
Teching In
 
Joined: Mar 2011
Posts: 46
Likes: 0
Default

torqr v2 cam 7.4 tsp prods and prc 2.5 5.3 heads lq9 flat tops idn wats the problm when i put valves in i looked in the ports while haveing a flash light under the head where the valves were and didnt see no light so i figured it will be ok
Reply
Old Jul 17, 2011 | 10:43 AM
  #5  
A.R. Shale Targa's Avatar
11 Second Club
iTrader: (2)
 
Joined: Feb 2011
Posts: 3,729
Likes: 15
From: Fredonia,WI
Default

Does it run well or is it lazy ?? did you verify correct lifter preload ??
Reply
Old Jul 17, 2011 | 11:12 AM
  #6  
1964h's Avatar
Thread Starter
Teching In
 
Joined: Mar 2011
Posts: 46
Likes: 0
Default

it runs good i been driving it for couple months.i gone out to back roads and ragged on it sounds smooth doesnt miss or anythin but i no it should run stronger and faster.pre load im not sure i used existing lifters that i had in the motor but i even loosen the to rockers to ensure there up and put air in cylinders and dont hear no air leaking.i really dont no wat the term pre load means and how to check the clearance.but everyone is telling me the pushrods are correct size
Reply




All times are GMT -5. The time now is 10:39 PM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


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