FORCED INDUCTION Turbos | Superchargers | Intercoolers | H2O/Meth Injection
Sponsored by:
Sponsored by:

how much boost will an ls2 block hold ?

Thread Tools
 
Search this Thread
 
Old May 3, 2012 | 09:15 PM
  #1  
TheRepairMan's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Sep 2011
Posts: 114
Likes: 0
Default how much boost will an ls2 block hold ?

how much boost can i let my ls2 eat? fully forged, the block is the onyl week point lol ? 20lbs? 25lbs ? 30lbs?
Reply
Old May 3, 2012 | 09:16 PM
  #2  
ak2007r6's Avatar
TECH Veteran
iTrader: (1)
 
Joined: Aug 2011
Posts: 4,104
Likes: 0
From: Alaska
Default

Only one way to find out
Reply
Old May 3, 2012 | 09:17 PM
  #3  
smokeshow's Avatar
Mod with training wheels
iTrader: (16)
 
Joined: Feb 2009
Posts: 7,741
Likes: 207
From: Detroit
Default

I've been looking into this more lately, and they are tougher than people expect. 20psi isn't an issue. Not sure if anybody has approached the 30 range yet...
Reply
Old May 4, 2012 | 02:00 AM
  #4  
AKlowriderZ71's Avatar
11 Second Hall Moniter
iTrader: (22)
 
Joined: May 2008
Posts: 11,651
Likes: 10
From: Wyoming
Default

Sub'd!
Reply
Old May 4, 2012 | 06:49 AM
  #5  
Lil brother PI's Avatar
TECH Regular
 
Joined: May 2011
Posts: 430
Likes: 0
From: La Joya TX
Default

I say 20-25 should not be a problem but who knows
Reply
Old May 4, 2012 | 08:16 AM
  #6  
smokeshow's Avatar
Mod with training wheels
iTrader: (16)
 
Joined: Feb 2009
Posts: 7,741
Likes: 207
From: Detroit
Default

I will be giving mine 18psi or so. Don't want to push it too far in stock form.
Reply
Old May 4, 2012 | 06:19 PM
  #7  
sand man's Avatar
TECH Fanatic
 
Joined: Feb 2009
Posts: 1,020
Likes: 0
From: Saudi Arabia
Default

just a quiston, what CR you plan on running? 9:1 or lower?

Last edited by sand man; May 4, 2012 at 06:50 PM.
Reply
Old May 4, 2012 | 09:11 PM
  #8  
smokeshow's Avatar
Mod with training wheels
iTrader: (16)
 
Joined: Feb 2009
Posts: 7,741
Likes: 207
From: Detroit
Default

Originally Posted by sand man
just a quiston, what CR you plan on running? 9:1 or lower?
Me? I'll be in the 9.4-9.5 range.
Reply
Old May 4, 2012 | 10:11 PM
  #9  
skeet's Avatar
TECH Junkie
iTrader: (18)
 
Joined: Feb 2007
Posts: 3,157
Likes: 2
From: P.A. TX
Default

scattered a ls2 at 5800 rpms, broke 2 rods but i personally think there was an issue with the shortblock before i got my hands on it
Reply
Old May 4, 2012 | 10:13 PM
  #10  
TheRepairMan's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Sep 2011
Posts: 114
Likes: 0
Default

my compression not sure honestly,

i have -11 cc dished wiseco pistons, with 68cc chamber ls3 heads . and headgasket thickness not sure yet.
Reply



All times are GMT -5. The time now is 06:29 AM.