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

comp ratio

Thread Tools
 
Search this Thread
 
Old Mar 3, 2020 | 01:07 PM
  #1  
Kdthunt's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Sep 2017
Posts: 37
Likes: 0
Default comp ratio

Looking for recommendations for static compression ratio on my combo. Stock crank ls1 with forged rods and pistons and a d1sc. Would like to know everyones thoughts and what static ratio would be safe running about 14 psi.I fully understand alot of the safety is in the tune but apart from that. Tia
Reply
Old Mar 3, 2020 | 01:25 PM
  #2  
Jays_SSZ28's Avatar
Banned
iTrader: (2)
 
Joined: Aug 2009
Posts: 2,223
Likes: 56
Default

Dynamic compression is what matters. Need cam specs. Etc
Reply
Old Mar 5, 2020 | 04:18 PM
  #3  
00pooterSS's Avatar
TECH Veteran
15 Year Member
Photogenic
Liked
Community Favorite
iTrader: (40)
 
Joined: Mar 2008
Posts: 4,920
Likes: 531
From: Dallas
Default

Static compression. I'd go for around 10:1, maybe as low as 9.5:1
There's no magic number really. I personally hate low compression boosted motors. Like in the 8's or right at 9.

Will need to check and set dynamic compression with the cam
Reply
Old Mar 5, 2020 | 06:27 PM
  #4  
KCS's Avatar
KCS
Moderator
20 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Mar 2005
Posts: 8,859
Likes: 323
From: Conroe, TX
Default

Million dollar question is what fuel?
Reply
Old Mar 6, 2020 | 01:44 AM
  #5  
dreadpirateroberts's Avatar
TECH Enthusiast
10 Year Member
iTrader: (1)
 
Joined: Dec 2014
Posts: 648
Likes: 72
Default

E85 all t3h things.
Reply
Old Mar 6, 2020 | 11:51 AM
  #6  
Kdthunt's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Sep 2017
Posts: 37
Likes: 0
Default

Pump gas 93, sorry. Was thinking about 10ish to 1. I am also aware cylinder pressure is what matters and will spec my cam accordingly but I just wanted some real world opinion for my static so i could get my bottom end put together. Appreciate all the feedback and keep it coming
Reply




All times are GMT -5. The time now is 03:39 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