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

Engine mods. What you think?

Thread Tools
 
Search this Thread
 
Old Mar 8, 2012 | 12:16 PM
  #16  
paullawalla's Avatar
Thread Starter
Registered User
iTrader: (1)
 
Joined: Dec 2011
Posts: 31
From: Pollock Pines
Car Info: Subaru Wrx TR 2007
What would it take to convert to e85?
Old Mar 8, 2012 | 12:21 PM
  #17  
04caliwrx's Avatar
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
two things a tune and some big injectors
Old Mar 8, 2012 | 12:22 PM
  #18  
paullawalla's Avatar
Thread Starter
Registered User
iTrader: (1)
 
Joined: Dec 2011
Posts: 31
From: Pollock Pines
Car Info: Subaru Wrx TR 2007
How big like 1300cc?
Old Mar 8, 2012 | 12:24 PM
  #19  
alien_refugee's Avatar
Registered User
iTrader: (2)
 
Joined: Apr 2008
Posts: 473
From: Sacramento CA
Car Info: 02 wrx love-wagon
Originally Posted by paullawalla
What would it take to convert to e85?
an appropriate fuel pump and large injectors. 1000cc would be plenty unless you wanna push huge numbers.

everything else can and does handle the alcohol.

e85 will put a smile on your face with just stage 2 mods and a good tune.
Old Mar 8, 2012 | 12:29 PM
  #20  
Javirex23's Avatar
Registered User
iTrader: (17)
 
Joined: Oct 2008
Posts: 2,178
From: Bay Area
Car Info: 07lmtd 6spd wrx eq tuned
Forget about building the 5speed, PPG gears are not worth the money... Get a 6speed and be done with it
Old Mar 8, 2012 | 12:32 PM
  #21  
LOL_VTEC's Avatar
Registered User
iTrader: (23)
 
Joined: Apr 2009
Posts: 5,436
From: Bay Area 925
Car Info: 2018 Tacoma TRD PRO
The lowest injectors you can go for e85 are 850cc. You can ride on those no problem. Plus a 255 fuel pump and tune. Done. I can't begin to explain the +'s to E85
Old Mar 8, 2012 | 12:42 PM
  #22  
04caliwrx's Avatar
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 LOL VTEC
The lowest injectors you can go for e85 are 850cc. You can ride on those no problem. Plus a 255 fuel pump and tune. Done. I can't begin to explain the +'s to E85
so true! it's also safe on the engine!
Old Mar 8, 2012 | 12:42 PM
  #23  
k-dogg39's Avatar
Lil' Slugger
iTrader: (7)
 
Joined: Dec 2006
Posts: 847
From: N. Lake Tahoe, NV
Car Info: 05 WRB STi Wagon/00 BRP GC Sedan
What are your goals for the car? Are you building it for Track? Auto-x? Drag? Street?
Old Mar 8, 2012 | 12:43 PM
  #24  
04caliwrx's Avatar
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
with a stock turbo you will see 300whp on that e85
Old Mar 8, 2012 | 12:45 PM
  #25  
LOL_VTEC's Avatar
Registered User
iTrader: (23)
 
Joined: Apr 2009
Posts: 5,436
From: Bay Area 925
Car Info: 2018 Tacoma TRD PRO
Originally Posted by 04caliwrx
with a stock turbo you will see 300whp on that e85
On a stock VF series. Not TD-04
Old Mar 8, 2012 | 01:35 PM
  #26  
FL4T's Avatar
Registered User
iTrader: (1)
 
Joined: Dec 2010
Posts: 279
From: Northern California
Car Info: 06 AW STi
Originally Posted by 04caliwrx
E85 burns cleaner then 91! I passed with a built engine and a 30 r
you passed visual too? what intake did you have?
Old Mar 8, 2012 | 02:08 PM
  #27  
04caliwrx's Avatar
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
Talking

Originally Posted by FL4T
you passed visual too? what intake did you have?
I passed the sniffer he said that all that counts
Old Mar 8, 2012 | 02:57 PM
  #28  
FL4T's Avatar
Registered User
iTrader: (1)
 
Joined: Dec 2010
Posts: 279
From: Northern California
Car Info: 06 AW STi
Originally Posted by 04caliwrx
I passed the sniffer he said that all that counts
haha lucky. I want to go to your smog guy
Old Mar 8, 2012 | 03:24 PM
  #29  
Heedz's Avatar
Nobody likes the tuna here
iTrader: (51)
 
Joined: Feb 2010
Posts: 19,779
From: Somewhere San Mateo County, Inside A 911 Ambulance
Car Info: 03 SRP WRX Street Class Prepped, 17 Chevy Duramax
VF-52 is not a viable option for him, it's a legacy/GR WRX formatted flange.

If you don't have a decent reason on going front mount definitely cheaper to stay TMIC, if it's your daily and you're not THAT close to E-85 it can be a hassle, at that point definitely have two maps available to switch between. Also your build will depend on what you want to use the car for, just can't seem to think that the set up mentioned earlier in the posts would be for a daily driven car.

@Eric, not all vf series turbos will hit 300whp, I know mine won't Also remember the drastic power drop after 5500RPM for USDM Vf series, heard that 48's aren't as bad but...
Old Mar 8, 2012 | 04:08 PM
  #30  
LOL_VTEC's Avatar
Registered User
iTrader: (23)
 
Joined: Apr 2009
Posts: 5,436
From: Bay Area 925
Car Info: 2018 Tacoma TRD PRO
All VF series can hit 300whp with the right mods and of course E85. Without the juice you'll be happy you made 270whp.


Originally Posted by Heedz
VF-52 is not a viable option for him, it's a legacy/GR WRX formatted flange.

If you don't have a decent reason on going front mount definitely cheaper to stay TMIC, if it's your daily and you're not THAT close to E-85 it can be a hassle, at that point definitely have two maps available to switch between. Also your build will depend on what you want to use the car for, just can't seem to think that the set up mentioned earlier in the posts would be for a daily driven car.

@Eric, not all vf series turbos will hit 300whp, I know mine won't Also remember the drastic power drop after 5500RPM for USDM Vf series, heard that 48's aren't as bad but...



All times are GMT -7. The time now is 06:20 PM.