i-Club - The Ultimate Subaru Resource

Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

04cali's build #2 with more mods, more boost, and more fun!

   
Old Oct 13, 2009 | 09:42 PM
Share
  #61  
l ANTHONY FTW l's Avatar
l ANTHONY FTW l
Registered User
 
Joined: Jan 2009
Posts: 315
From: San Jose CA
Car Info: 2004 subaru impreza wrx STi
my buddy has a JIC spartan.... its pretty damn quiet. you can barley hear it at idle.
Reply
Old Oct 17, 2009 | 01:43 PM
Share
  #62  
DerekB707's Avatar
DerekB707
Registered User
iTrader: (21)
 
Joined: Aug 2009
Posts: 1,457
From: 509
Car Info: 07 rs STi swapped Rotated BW S200SX-56
Originally Posted by EQ Tuning
Matt's car made 280whp on wastegate boost but wouldn't make more than about 310whp as we turned things up. He currently has a very restrictive exhaust on the car and it seems that we found the flow limits of it at around 310whp. The larger turbos are very sensitive to flow restrictions, so we have to free up the exhaust side to see the full power potential of the setup.

Thanks
-- Ed
Hi Ed,

If sound was not an issue and the car had a free flowing exhaust, how much more could you get out of his setup? Just curious how the exhaust effects the output capability.

Derek
Reply
Old Oct 17, 2009 | 01:45 PM
Share
  #63  
04caliwrx's Avatar
04caliwrx
Thread Starter
Registered User
iTrader: (6)
 
Joined: Mar 2006
Posts: 9,581
From: on the way to lake tahoe to shread! turbo beast
Car Info: 2016 WRX, 2014 lifter forester XT, 2005 JDM207 WGN
Originally Posted by DerekB707
Hi Ed,

If sound was not an issue and the car had a free flowing exhaust, how much more could you get out of his setup? Just curious how the exhaust effects the output capability.

Derek
between 25-50whp
Reply
Old Oct 17, 2009 | 03:59 PM
Share
  #64  
EQ Tuning's Avatar
EQ Tuning
iClub Silver Vendor
iTrader: (12)
 
Joined: Mar 2003
Posts: 8,228
From: 631 Railroad Ave. Fairfield, CA
Car Info: A Laptop
Originally Posted by DerekB707
Hi Ed,

If sound was not an issue and the car had a free flowing exhaust, how much more could you get out of his setup? Just curious how the exhaust effects the output capability.

Derek
With a very free flowing exhaust, I would expect to see around 350-360whp on this particular setup.

Thanks
-- Ed
Reply
Old Oct 17, 2009 | 09:18 PM
Share
  #65  
DerekB707's Avatar
DerekB707
Registered User
iTrader: (21)
 
Joined: Aug 2009
Posts: 1,457
From: 509
Car Info: 07 rs STi swapped Rotated BW S200SX-56
Originally Posted by EQ Tuning
With a very free flowing exhaust, I would expect to see around 350-360whp on this particular setup.

Thanks
-- Ed

That's a huge difference!



Originally Posted by 04caliwrx
between 25-50whp

Are you going to change out the exhaust or are you trying to keep it quieter to avoid attracting unwanted PD attention? I know you said you are having fun driving it at 310 whp, but could you imagine another 50hp?
Reply
Old Oct 17, 2009 | 10:47 PM
Share
  #66  
04caliwrx's Avatar
04caliwrx
Thread Starter
Registered User
iTrader: (6)
 
Joined: Mar 2006
Posts: 9,581
From: on the way to lake tahoe to shread! turbo beast
Car Info: 2016 WRX, 2014 lifter forester XT, 2005 JDM207 WGN
Originally Posted by DerekB707
That's a huge difference!






Are you going to change out the exhaust or are you trying to keep it quieter to avoid attracting unwanted PD attention? I know you said you are having fun driving it at 310 whp, but could you imagine another 50hp?
Yes I will be getting a free flowing 3" exhaust, and yes 50whp is a huge difference. And that gonna be a kick *** 50whp
Reply
Old Oct 18, 2009 | 05:49 PM
Share
  #67  
meilers's Avatar
meilers
VIP Member
 
Joined: Mar 2003
Posts: 2,023
From: Phoenix, AZ
Car Info: Subaru Impreza WRX 2002
Originally Posted by 04caliwrx
Thanks for helping m out Ed I'm still working on getting the best 3" exhaust I can without it being really loud.
I've had an APS 3" single-tip for 4 years now, absolutely quiet at idle and off-throttle no one notices you at all, and you can't get better flow (I've seen cars tuned to 400whp with it)
Reply
Old Oct 18, 2009 | 06:15 PM
Share
  #68  
04caliwrx's Avatar
04caliwrx
Thread Starter
Registered User
iTrader: (6)
 
Joined: Mar 2006
Posts: 9,581
From: on the way to lake tahoe to shread! turbo beast
Car Info: 2016 WRX, 2014 lifter forester XT, 2005 JDM207 WGN
what exhauset was it?
Reply
Old Oct 18, 2009 | 07:21 PM
Share
  #69  
KrAzYkld's Avatar
KrAzYkld
Registered User
iTrader: (30)
 
Joined: Mar 2008
Posts: 1,256
From: Dublin
Car Info: 1998 M3, 2016 WRX
Originally Posted by 04caliwrx
what exhauset was it?
pretty sure he was talking about this exhaust
http://www.airpowersystems.com/us_sp...wrx-hoe-r1.htm
Reply
Old Oct 18, 2009 | 07:30 PM
Share
  #70  
04caliwrx's Avatar
04caliwrx
Thread Starter
Registered User
iTrader: (6)
 
Joined: Mar 2006
Posts: 9,581
From: on the way to lake tahoe to shread! turbo beast
Car Info: 2016 WRX, 2014 lifter forester XT, 2005 JDM207 WGN
Originally Posted by KrAzYkld
pretty sure he was talking about this exhaust
http://www.airpowersystems.com/us_sp...wrx-hoe-r1.htm
it does look nice, is it a true 3" exhaust and why does it say good for only 350hp?
Reply
Old Oct 18, 2009 | 07:52 PM
Share
  #71  
KrAzYkld's Avatar
KrAzYkld
Registered User
iTrader: (30)
 
Joined: Mar 2008
Posts: 1,256
From: Dublin
Car Info: 1998 M3, 2016 WRX
Originally Posted by 04caliwrx
it does look nice, is it a true 3" exhaust and why does it say good for only 350hp?
not exactly sure why it says good for 350hp. i'm pretty sure it'll hand much more since it is a full 3in exhaust.

the previous poster posted something that'll help.
Originally Posted by meilers
I've had an APS 3" single-tip for 4 years now, absolutely quiet at idle and off-throttle no one notices you at all, and you can't get better flow (I've seen cars tuned to 400whp with it)
Reply
Old Oct 18, 2009 | 08:08 PM
Share
  #72  
04caliwrx's Avatar
04caliwrx
Thread Starter
Registered User
iTrader: (6)
 
Joined: Mar 2006
Posts: 9,581
From: on the way to lake tahoe to shread! turbo beast
Car Info: 2016 WRX, 2014 lifter forester XT, 2005 JDM207 WGN
^ i guess I just need to find the name of the aps so I can try to find one
Reply
Old Oct 19, 2009 | 10:58 AM
Share
  #73  
csubaru04's Avatar
csubaru04
Registered User
 
Joined: Jul 2009
Posts: 27
From: Pollock Pines,CA
Car Info: 04 WRX
beautiful machine!!! good luck with your "new" ride
Reply
Old Oct 19, 2009 | 11:37 AM
Share
  #74  
04caliwrx's Avatar
04caliwrx
Thread Starter
Registered User
iTrader: (6)
 
Joined: Mar 2006
Posts: 9,581
From: on the way to lake tahoe to shread! turbo beast
Car Info: 2016 WRX, 2014 lifter forester XT, 2005 JDM207 WGN
^ thanks
Reply
Old Oct 19, 2009 | 09:06 PM
Share
  #75  
meilers's Avatar
meilers
VIP Member
 
Joined: Mar 2003
Posts: 2,023
From: Phoenix, AZ
Car Info: Subaru Impreza WRX 2002
Originally Posted by 04caliwrx
it does look nice, is it a true 3" exhaust and why does it say good for only 350hp?
They have one that's one step further but it looks more like the JIC/bullet-style exhausts with a giant 4.5" hole and is MUCH more likely to **** off cops. The 350 is a conservative figure, Dyno-Comp in Scottsdale (who tuned my car) has cranked out dozens of 400whp STIs with the 3" exhaust; one of them was a cover car on Sport Compact Car in 2006. Rich, who owns the shop, likes to use APS exclusively and is even featured on the APS site.

If you want to go with the bigger exhuast here it is:

http://www.airpowersystems.com/us_sp...wrx-hoe-r5.htm

Good for 600whp, but MUCH louder and more noticeable. My 3" system looks very stock, it looks similar to the SPT exhaust from the 2006-2007 STIs.
Reply

Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search

All times are GMT -7. The time now is 04:41 AM.