Notices

VF37 twin scroll upgrade - advices

Thread Tools
 
Search this Thread
 
Old 30 January 2013, 01:31 PM
  #1  
elspa
Scooby Regular
Thread Starter
iTrader: (1)
 
elspa's Avatar
 
Join Date: Apr 2009
Location: Bucharest, Romania
Posts: 241
Likes: 0
Received 0 Likes on 0 Posts
Default VF37 twin scroll upgrade - advices

Hi guys,

I'm doing a VF37 twin scroll upgrade on my 04 STI. I allready have AEM intake, full 3" Supersprint exhaust decat, walbro pump, 1 bar actuator for the turbo.

What else can I do to help the turbo spool faster before I install everything ? I want a fast street setup with fast throttle response.

Thanks !
Old 30 January 2013, 01:38 PM
  #2  
SPEN555
Scooby Regular
 
SPEN555's Avatar
 
Join Date: Dec 2000
Location: West Yorkshire
Posts: 3,828
Likes: 0
Received 0 Likes on 0 Posts
Post

You will also need Twin Scroll headers and twin scroll sump AFAIK.
Old 30 January 2013, 01:46 PM
  #3  
elspa
Scooby Regular
Thread Starter
iTrader: (1)
 
elspa's Avatar
 
Join Date: Apr 2009
Location: Bucharest, Romania
Posts: 241
Likes: 0
Received 0 Likes on 0 Posts
Default

I allready have everything for the swap (manifold, upipe, downpipe, suport, sump, dipstick, new gaskets), just wanted to know what else can I do to further help the spool: porting the hot side, polishing the intake ....

Last edited by elspa; 30 January 2013 at 01:48 PM.
Old 30 January 2013, 04:19 PM
  #4  
jura11
Scooby Regular
iTrader: (7)
 
jura11's Avatar
 
Join Date: Apr 2010
Location: www.slowboy-racing.co.uk
Posts: 10,523
Received 1 Like on 1 Post
Default

What heads you will be running?

As you know,JDM STi using different heads(Big port) and different cams,this would help in better spool up and better top end




Jura
Old 30 January 2013, 04:24 PM
  #5  
rickya
Scooby Regular
iTrader: (18)
 
rickya's Avatar
 
Join Date: May 2007
Location: Herts/Middx
Posts: 6,322
Likes: 0
Received 1 Like on 1 Post
Default

Get a forge uprated actuator, blue spring. Makes a huge difference most of the time in holding boost longer & IMO gives more torque earlier.
Old 30 January 2013, 04:51 PM
  #6  
elspa
Scooby Regular
Thread Starter
iTrader: (1)
 
elspa's Avatar
 
Join Date: Apr 2009
Location: Bucharest, Romania
Posts: 241
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jura11
What heads you will be running?

As you know,JDM STi using different heads(Big port) and different cams,this would help in better spool up and better top end




Jura
my stock heads, don;t want to go that far as swapping heads.
Old 30 January 2013, 04:52 PM
  #7  
elspa
Scooby Regular
Thread Starter
iTrader: (1)
 
elspa's Avatar
 
Join Date: Apr 2009
Location: Bucharest, Romania
Posts: 241
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by rickya
Get a forge uprated actuator, blue spring. Makes a huge difference most of the time in holding boost longer & IMO gives more torque earlier.
allready have a 15psi actuator for the vf37

Last edited by elspa; 30 January 2013 at 04:54 PM.
Old 30 January 2013, 04:55 PM
  #8  
Maz
Scooby Senior
iTrader: (34)
 
Maz's Avatar
 
Join Date: Apr 2006
Location: Yorkshire.
Posts: 15,884
Received 0 Likes on 0 Posts
Default

NOS can help with spool if you want to go that route.
Old 30 January 2013, 06:02 PM
  #9  
sunnyjones003
Scooby Regular
iTrader: (12)
 
sunnyjones003's Avatar
 
Join Date: May 2011
Location: Las Vegas on the roulette table
Posts: 1,303
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Einstein RA
NOS can help with spool if you want to go that route.
it actually does, ive done it
Old 30 January 2013, 06:03 PM
  #10  
elspa
Scooby Regular
Thread Starter
iTrader: (1)
 
elspa's Avatar
 
Join Date: Apr 2009
Location: Bucharest, Romania
Posts: 241
Likes: 0
Received 0 Likes on 0 Posts
Default

no nitrous wanted
Old 31 January 2013, 10:29 AM
  #11  
elspa
Scooby Regular
Thread Starter
iTrader: (1)
 
elspa's Avatar
 
Join Date: Apr 2009
Location: Bucharest, Romania
Posts: 241
Likes: 0
Received 0 Likes on 0 Posts
Default

would a 3 port BCS help spooling, along with a tune for it ?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KAS35RSTI
Subaru
27
04 November 2021 07:12 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Sam Witwicky
Engine Management and ECU Remapping
17
13 November 2015 10:49 AM
Brzoza
Engine Management and ECU Remapping
1
02 October 2015 05:26 PM
Brett-wv14
Subaru Parts
12
29 September 2015 01:46 PM



Quick Reply: VF37 twin scroll upgrade - advices



All times are GMT +1. The time now is 11:58 PM.