Notices
Engine Management and ECU Remapping This section is to discuss the various aspects of engine management modification for your Subaru.

Max boost pressure

Thread Tools
 
Search this Thread
 
Old 09 September 2017, 07:55 AM
  #1  
Jon T
Scooby Regular
Thread Starter
 
Jon T's Avatar
 
Join Date: Jul 2017
Location: North wales
Posts: 630
Received 20 Likes on 17 Posts
Default Max boost pressure

Hi. Whats the max boost pressure you can run on a forged 2.5 sti.?
Old 09 September 2017, 09:47 AM
  #2  
domino46
Scooby Regular
 
domino46's Avatar
 
Join Date: May 2011
Location: www.bbscoobys.com
Posts: 3,179
Received 264 Likes on 172 Posts
Default

I'm running 1.75bar but can't see why it wouldnt do a bit more if I wanted but I'm happy with it as it is
Old 09 September 2017, 10:10 AM
  #3  
scoobiepaul
Scooby Regular
 
scoobiepaul's Avatar
 
Join Date: Aug 2007
Posts: 672
Received 2 Likes on 2 Posts
Default

I know it's only got forged pistons but my mark one Litchfield only runs 1.26 bar.
Old 09 September 2017, 12:40 PM
  #4  
Jon T
Scooby Regular
Thread Starter
 
Jon T's Avatar
 
Join Date: Jul 2017
Location: North wales
Posts: 630
Received 20 Likes on 17 Posts
Default

What bhp are you making at1.75 bar?
Old 09 September 2017, 02:02 PM
  #5  
debbiesonic
Scooby Regular
iTrader: (7)
 
debbiesonic's Avatar
 
Join Date: Apr 2007
Location: on the computer.... obviously!
Posts: 545
Likes: 0
Received 0 Likes on 0 Posts
Default

Depends on spec........ and bravery!
Old 10 September 2017, 06:04 AM
  #6  
domino46
Scooby Regular
 
domino46's Avatar
 
Join Date: May 2011
Location: www.bbscoobys.com
Posts: 3,179
Received 264 Likes on 172 Posts
Default

Originally Posted by Jon T
What bhp are you making at1.75 bar?

531bhp
Old 10 September 2017, 09:24 AM
  #7  
trevsjwood
Scooby Regular
iTrader: (2)
 
trevsjwood's Avatar
 
Join Date: Sep 2007
Location: Northampton
Posts: 1,655
Received 6 Likes on 5 Posts
Default

Originally Posted by domino46
531bhp
that can't be on a standard block with just forged pistons?
Trev
Old 10 September 2017, 09:29 AM
  #8  
domino46
Scooby Regular
 
domino46's Avatar
 
Join Date: May 2011
Location: www.bbscoobys.com
Posts: 3,179
Received 264 Likes on 172 Posts
Default

Originally Posted by trevsjwood
that can't be on a standard block with just forged pistons?
Trev

OP doesn't say anything about the block just forged 2.5 but yes mine is a closed deck 2.5 with 14mm head studs
Old 07 October 2017, 11:28 PM
  #9  
ustolemyname??stevieturbo
Scooby Regular
iTrader: (1)
 
ustolemyname??stevieturbo's Avatar
 
Join Date: Mar 2002
Location: Norn Iron
Posts: 2,786
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Jon T
Hi. Whats the max boost pressure you can run on a forged 2.5 sti.?
Change psi to cm and as much as that piece of string.




All times are GMT +1. The time now is 11:25 PM.