Welcome to the North American Subaru Impreza Owners Club Monday July 28, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > Proven Power Bragging

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 04-27-2009, 01:16 AM   #1
crand002
Scooby Newbie
 
Member#: 129765
Join Date: Oct 2006
Location: San Diego
Vehicle:
2006 EVO
439whp/412wtq (MD)

Default APS SR40 vs. Blouch Dom. 3 (Odd comparo)

I just went from an APS SR40 to a Bouch Dom. 3 and I am sharing the results. As everyone might be aware the SR40 is 40lb/min turbo and the Dom. 3 is 52/min. This doesn't seem like a good comparison but the results were actually quite interesting. I felt that going from a 40lb/min turbo to a 52/min turbo would be night and day when it comes to power and response. Wrong and wrong.

The graph below shows the comparo between the two turbos. Please know the only difference in mods besides the turbos are the intercoolers and BOV's. The SR40 was mated to the stock STi intercooler and the stock bypass valve while the Dom. 3 was mated to a APS DR525 FMIC and an APS 50/50 BOV.

Mods:
2006 STi
Cosworth Pistons
Cosworth head studs
Stock heads
Blouch Dom. 3 (8cm w/2.4 inlet)
APS DR525 FMIC
APS Inlet
APS 70mm intake
APS 50/50 BOV
Aquamist HFS-5 (dual nozzle) 50% meth 50% H20
Crawford TMIC A/O Seperator
Tomei EL Headers
Tomei Uppipe
Walbro Fuel Pump
DW 740cc injectors
Titek Catless DP
JIC Full Ti catback (non resonated)



DOM. 3 = 350whp/386wtq
SR40 = 325whp/364wtq

For the record the SR40 map Harman gave me was tuned down to 322whp/355wtq for the street. So the map above was never used. With that being said the results to me seem interesting. First of all the spool is pretty darn close between the two even with the new Dom. 3 using a FMIC. Definately not as punishing as the low end of the SR40 but very good. What is most suprising is the power. I only gained 25whp and 22wtq. Keep in mind my tuner did make a few "Banzai" runs on the Dom. 3 which yielded more power but over all not a huge difference. To be honest the sr40 feels quicker 1st thru 2nd and almost as fast in the uppers. The difference really is in smoothness. The sr40 was quick but the Dom. 3 is sneaky fast. It is so smooth in the higher gears that you really don't realize you are going as fast as you are.

For the money the Dom. 3 is much better but then again with the SR40 you can utilize the stock intercooler and with the Dom. 3 you cannot. You can be the judge. I will tell you that I do have a lot of respect for the SR40. It reminds me of a little tough guy trying to pick on the big boys. Sorry for the rant.
* Registered users of the site do not see these ads.
crand002 is offline   Reply With Quote
Old 04-27-2009, 07:58 AM   #2
Paul
Scooby Guru
 
Member#: 56203
Join Date: Feb 2004
Chapter/Region: Tri-State
Location: south nj
Vehicle:
00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

Default

why cant you use the stock ic w/ a dom3?
Paul is offline   Reply With Quote
Old 04-27-2009, 08:55 AM   #3
Deranged
Scooby Newbie
 
Member#: 42999
Join Date: Sep 2003
Chapter/Region: NESIC
Location: New Bedford, MA
Vehicle:
2004 sti
blue

Default

Graph looks nice man. I was just surprised to see you didn't make 400whp with meth with the Dom 3 because it can definetly make that power reliably with meth.
Deranged is offline   Reply With Quote
Old 04-27-2009, 09:45 AM   #4
crand002
Scooby Newbie
 
Member#: 129765
Join Date: Oct 2006
Location: San Diego
Vehicle:
2006 EVO
439whp/412wtq (MD)

Default

Quote:
Originally Posted by Paul View Post
why cant you use the stock ic w/ a dom3?
You would heat soak like a mother even with meth.
crand002 is offline   Reply With Quote
Old 04-27-2009, 09:48 AM   #5
crand002
Scooby Newbie
 
Member#: 129765
Join Date: Oct 2006
Location: San Diego
Vehicle:
2006 EVO
439whp/412wtq (MD)

Default

Quote:
Originally Posted by Deranged View Post
Graph looks nice man. I was just surprised to see you didn't make 400whp with meth with the Dom 3 because it can definetly make that power reliably with meth.
Dyno reads low for one and this turbo should be used with a EWG to maximize it's potential. For reference I trapped 89mph in the 1/8th with the SR40.
crand002 is offline   Reply With Quote
Old 04-29-2009, 12:22 AM   #6
Prevent
*** Banned ***
 
Member#: 149114
Join Date: May 2007
Location: I'm too mainstream
Default

Quote:
Originally Posted by crand002 View Post
You would heat soak like a mother even with meth.
This and the Stock IC doesn't flow enough, IMO. You'd be better off getting a higher CFM TMIC.
Prevent is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
07 WRX - Blouch DOM 3 8cm housing vs. 10cm housing! Equilibrium Tuning Proven Power Bragging 51 04-23-2013 07:23 PM
fullrace GT3076 1.5 Scroll vs Blouch DOM III vs FullRace Twinscroll GT35R azn_ryder02 Factory 2.5L Turbo Powertrain 58 04-06-2009 10:29 PM
guages, pillar pod, turbo timer and blouch dom 3 bpeetz Private 'Wanted' Classifieds 0 02-18-2008 06:46 PM
GT52 vs. Blouch Dom III...Which spools faster? bulgarianfreak55 Factory 2.5L Turbo Powertrain 8 07-16-2007 10:07 PM


All times are GMT -4. The time now is 12:33 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.