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

Compression questions

Thread Tools
 
Search this Thread
 
Old Jan 5, 2004 | 05:29 PM
  #1  
NataSS Inc's Avatar
Thread Starter
TECH Senior Member
iTrader: (9)
 
Joined: Dec 2001
Posts: 5,395
Likes: 1
From: Estero, FL
Default Compression questions

12.5:1 domed piston with Stage 2 LS6 heads that have been milled .030. what would the final compression come to? On an unmilled head that would be around 13.7:1. What would the jump be on the milled head.

I am a complete tard when it comes to trying to figure out what that kind of stuff works out to.

TIA.

Reply
Old Jan 5, 2004 | 06:14 PM
  #2  
Cal's Avatar
Cal
TECH Veteran
iTrader: (1)
 
Joined: Feb 2003
Posts: 4,691
Likes: 3
From: Northern Utah
Default

I could figure that out if you know how many the CC's the Stage 2 LS6 heads have before milling them. It will be higher than 13.7; that sounds like too much compression unless you're going to burn race gas or alcohol.
Reply
Old Jan 5, 2004 | 06:17 PM
  #3  
NataSS Inc's Avatar
Thread Starter
TECH Senior Member
iTrader: (9)
 
Joined: Dec 2001
Posts: 5,395
Likes: 1
From: Estero, FL
Default

Originally Posted by Cal
I could figure that out if you know how many the CC's the Stage 2 LS6 heads have before milling them.
Got me on that one. Let me do a little looking around

It will be higher than 13.7; that sounds like too much compression unless you're going to burn race gas or alcohol.
Reply
Old Jan 5, 2004 | 09:47 PM
  #4  
DaleMX's Avatar
TECH Junkie
iTrader: (4)
 
Joined: Jul 2002
Posts: 3,078
Likes: 0
From: Atlanta, Georgia!
Default

Well the PP site says stage 2 LS6 = 64.45cc
Reply
Old Jan 6, 2004 | 09:50 AM
  #5  
Pro Stock John's Avatar
LS1Tech Co-Founder
20 Year Member
Community Influencer
iTrader: (34)
 
Joined: Nov 2001
Posts: 45,364
Likes: 1,796
From: Chicago, IL
Default

Sounds like a motor that will need to run on 110.
Reply
Old Jan 6, 2004 | 10:03 AM
  #6  
critter's Avatar
10 Second Club
iTrader: (9)
 
Joined: Jun 2003
Posts: 1,001
Likes: 0
From: Goshen, IN
Default

Originally Posted by Pro Stock John
Sounds like a motor that will need to run on 110.
This is more or less on topic ...
A friend called last night to tell me about a (new?) Torco additive (they do not call it an octane booster) that is supposed to be the concentrated additives they use to make racing fuel. The treatment is 1 quart to 16 gallons, giving 103 from 93. 2 quarts gives 107, which they say really acts like 110. Don't quote me on the numbers, please. You can mix less also. The cost is ~$56/case of 10.

Is this old news? Anybody have any experience?
Reply
Old Jan 6, 2004 | 11:00 AM
  #7  
NataSS Inc's Avatar
Thread Starter
TECH Senior Member
iTrader: (9)
 
Joined: Dec 2001
Posts: 5,395
Likes: 1
From: Estero, FL
Default

I dont like mixing fuels, On a high compression motor I have never wanted to risk the chance of not putting the right quantities in the mix. I'll just stick to the 55ga drum of VP.
Reply




All times are GMT -5. The time now is 05:14 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


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