Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Compression test results - opinions

Thread Tools
 
Search this Thread
 
Old 11-23-2017 | 08:02 AM
  #1  
Double06's Avatar
Thread Starter
TECH Enthusiast
10 Year Member
iTrader: (1)
 
Joined: Apr 2012
Posts: 632
Likes: 226
From: Potomac, MD
Default Compression test results - opinions

Did a test just to see how things were doing when I changed plugs out - it is an 11.5 to 1 LS motor with a good size cam 243/259 at .050. All cylinders were similar with an initial start of 130-150 then second turn going to 170 or so with a 3 one in the 190 or so with a 200 or so max after the 4th turn or so. Just wanted to see what others may have done in the past and results. Seems OK to me.
Old 11-23-2017 | 08:26 AM
  #2  
LLLosingit's Avatar
TECH Junkie
10 Year Member
iTrader: (4)
 
Joined: Aug 2013
Posts: 3,837
Likes: 475
From: Iowa
Default

Don't worry about the max number(unless really low), Different camshaft profiles/ring gaps/types will result in different numbers. What you're really wanting to see is all numbers being within around 10% of each other.
Old 11-23-2017 | 10:07 AM
  #3  
Double06's Avatar
Thread Starter
TECH Enthusiast
10 Year Member
iTrader: (1)
 
Joined: Apr 2012
Posts: 632
Likes: 226
From: Potomac, MD
Default

That's what I thought - I would say they were all within 5% of one another.



Quick Reply: Compression test results - opinions



All times are GMT -5. The time now is 10:33 AM.