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

Whats my compression ratio?

Thread Tools
 
Search this Thread
 
Old 11-18-2014, 09:17 AM
  #1  
On The Tree
Thread Starter
iTrader: (2)
 
cwylie's Avatar
 
Join Date: May 2013
Location: Austin Texas
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Default Whats my compression ratio?

Block
Ly6 iron block gen4
Forged .03 over wiseco pistons +4 cc
stock rods
stock crank
LS3 heads with a minimal mill job to surface them
OEM .051 MLS head gaskets

From best I can tell I am right at 10.5:1 but I not 100% certain on that.
Old 11-18-2014, 09:30 AM
  #2  
TECH Junkie
iTrader: (5)
 
redtan's Avatar
 
Join Date: May 2008
Location: Belmont, MA
Posts: 3,764
Likes: 0
Received 16 Likes on 15 Posts

Default

11.3, probably missed something in your calculator
Old 11-18-2014, 10:03 AM
  #3  
On The Tree
Thread Starter
iTrader: (2)
 
cwylie's Avatar
 
Join Date: May 2013
Location: Austin Texas
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Default

Stock heads are 68cc right?
Old 11-18-2014, 10:10 AM
  #4  
TECH Junkie
iTrader: (5)
 
redtan's Avatar
 
Join Date: May 2008
Location: Belmont, MA
Posts: 3,764
Likes: 0
Received 16 Likes on 15 Posts

Default

68.5 I believe, so I used 67 in the calculation since you said they were milled slightly.
Old 11-18-2014, 12:16 PM
  #5  
KCS
Moderator
iTrader: (20)
 
KCS's Avatar
 
Join Date: Mar 2005
Location: Conroe, TX
Posts: 8,853
Received 315 Likes on 213 Posts
LS1Tech 10 Year
Default

Originally Posted by redtan
11.3, probably missed something in your calculator
I get the same as you. Gotta make sure you put in that 4cc in as a dome and not a dish.



Quick Reply: Whats my compression ratio?



All times are GMT -5. The time now is 12:26 PM.