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07-22-2012, 11:03 PM | #126 | |
Scooby Specialist
Member#: 279525
Join Date: Apr 2011
Chapter/Region:
Tri-State
Location: QUEENS NY
Vehicle:06 Fxt |
Quote:
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07-23-2012, 12:48 AM | #127 |
Scooby Newbie
Member#: 273528
Join Date: Feb 2011
Chapter/Region:
RMIC
Location: Northern CO
Vehicle:2002 Impreza WRX Silver |
I did send my heads out. I just smoothed out/rounded out all sharp edges in the combustion chambers. I'll let you know in a few days how she runs.
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07-24-2012, 01:06 AM | #128 | |
Scooby Newbie
Member#: 180769
Join Date: May 2008
Chapter/Region:
NESIC
Vehicle:lots of junkers |
Quote:
The heads we did this on already had cracks around the spark plug holes, so a shop wouldn't have touched them anyway. The engine runs great. |
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10-26-2012, 08:24 PM | #129 |
Scooby Specialist
Member#: 64413
Join Date: Jun 2004
Chapter/Region:
MWSOC
Location: Ankeny, Ia
Vehicle:1995 Impreza Outblak Flat Black full WRX swap |
Mileage since installed: 0
Type Engine and Internals: Acl Rod bearings, with Wiseco pistons Drop in 20k original miles on EJ257 Valve-train: Stock valves with EQ CNC heads Head Gasket Choice: OEM EJ257 Current Status: Building now. Rotated 20g for now with 40mm compgate wastegate and V-mount intercooler with flipped intake manifold, TGV deletes tuned on E85 |
10-27-2012, 12:55 AM | #130 |
Scooby Specialist
Member#: 57070
Join Date: Mar 2004
Chapter/Region:
MAIC
Location: Arlington, VA
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Mileage since installed: 39k
Type Engine and Internals: Stock EJ257 Valve-train: Stock valves with EQ CNC heads Head Gasket Choice: OEM EJ257 Current Status: Running strong for two years and counting! Just was dynoed at 274/315. Last edited by amazonparrot; 11-28-2012 at 11:54 AM. |
10-27-2012, 06:01 PM | #131 |
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region:
Tri-State
Location: North NJ
Vehicle:2015 STI ISM |
This thread must not be that lame because it keeps coming back. Lol. (cough maxwell)
Had to change my pcv setup because the car was consuming oil during heavy boosting. What i learned so far is this; 1. Dont block the center crank vent on the block. Vent it somehow 2. I have some mileage on my block and didn't need to reshape the heads for the power i make but i have forged piston and only use 93 oct. 18psi daily 3. Stock wrx cams suck so much on the 2.5 block and my car falls on its face 4. Modded injectors suck and you will see what i mean when you switch to id1000's or something similar. My car is just smoother after running two different sets of modded injectors. 5. Extra torque makes you realize how much slop is in your stock suspension Still going strong in a car with 230k on the odometer. Engine was installed around 206k i think and i have a td06h-60-1 running 18psi daily.Not much but it gets the job done |
10-27-2012, 06:04 PM | #132 | |
Scooby Specialist
Member#: 202736
Join Date: Feb 2009
Chapter/Region:
SCIC
Location: Los Angeles, CA
Vehicle:2002 WRX- 6spd - MBP 1992 Civic VX 40MPG |
Quote:
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10-27-2012, 11:36 PM | #133 |
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region:
Tri-State
Location: North NJ
Vehicle:2015 STI ISM |
3600 in 2nd and less in third. I actually didnt know so when i went to pick up some food i checked. Second gear is all i can do aggressively on these city streets. The housings are 2.4front and 8cm rear.
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11-15-2012, 12:35 PM | #134 |
Scooby Specialist
Member#: 143225
Join Date: Mar 2007
Location: The Caribbean
Vehicle:2004 JDM Sti WRB |
Ok id like to ask:
I have been reading about how there is a difference between the EJ207 and the Ej257 heads in the way that they Breathe, also the EJ257 appears to have an extra vent on the center, id like to ask, can someone explain to me the actual difference between the heads and their breathing? im simply trying to understand why im getting excessive CCV pressure on my hybrid. If it has been answered before i apologise for asking again, i dont mean to offend anyone or seem like a pest. thanks in advance |
12-13-2012, 01:00 PM | #135 |
Scooby Newbie
Member#: 335710
Join Date: Oct 2012
Chapter/Region:
SWIC
Location: Phoenix, Arizona
Vehicle:2006 Evolution IX RS Rally Red |
Anybody know where you can pick up a built ej257 off the internet?
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12-13-2012, 01:59 PM | #136 |
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region:
Tri-State
Location: North NJ
Vehicle:2015 STI ISM |
There are a bunch of horror stories on here. Company x built my motor and now they wont give me back n dollars. Its very hard to deal with a company thats 10 states away when you want something done about your blown motor.
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12-13-2012, 03:04 PM | #137 | |
Scooby Newbie
Member#: 181995
Join Date: Jun 2008
Chapter/Region:
Tri-State
Location: Rome, NY
Vehicle:2003 WRX WRB |
Quote:
I'd try to see if you can find a builder somewhere in the area, even if it's a few hours drive. |
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12-13-2012, 06:27 PM | #138 |
Scooby Newbie
Member#: 282638
Join Date: May 2011
Chapter/Region:
RMIC
Location: Thornton, Colorado
Vehicle:2002 WRX/STi WRB |
Here are my heads from a previous hybrid build.
i saved myself the trouble and just bought the 2.5 heads hope the pictures arent to big. edit: not the pitting on the face can anyone explain what happened here? or has it already been explained. |
12-14-2012, 12:16 AM | #139 |
Scooby Newbie
Member#: 335710
Join Date: Oct 2012
Chapter/Region:
SWIC
Location: Phoenix, Arizona
Vehicle:2006 Evolution IX RS Rally Red |
Well i know of shops here that could do work on it.
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12-14-2012, 12:41 PM | #140 |
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region:
Tri-State
Location: North NJ
Vehicle:2015 STI ISM |
What caused you to replace the motor? I find it odd that its 1 chamber on each head that looks like that. What do the corresponding pistons and plugs look like? I'm guessing they were pretty ****ed because the head is alot tougher than the pistons. I need more.
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12-17-2012, 09:31 PM | #141 | |
Scooby Specialist
Member#: 143225
Join Date: Mar 2007
Location: The Caribbean
Vehicle:2004 JDM Sti WRB |
Quote:
I have been told that if i use more radical CAMS that it helps but how exactly do they differ? venting of the systems i mean |
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12-18-2012, 07:57 AM | #142 |
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region:
Tri-State
Location: North NJ
Vehicle:2015 STI ISM |
I know more aggressive cams give you less vac at idle but i don't know how that would make a difference under boost. My car only burned oil when my right foot remained down.
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12-18-2012, 08:36 AM | #143 | |
Scooby Specialist
Member#: 271720
Join Date: Jan 2011
Chapter/Region:
Tri-State
Location: NEPA
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Quote:
I dont understand the question, I know my 207 heads have the same amount of breathers on the valve covers as the ej257, and I'm fairly certain the 207 block uses the same crank case breather that the 257 has. so I don't see why you would be able to connect everything a if it were stock. |
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12-27-2012, 03:08 AM | #144 |
Scooby Newbie
Member#: 335710
Join Date: Oct 2012
Chapter/Region:
SWIC
Location: Phoenix, Arizona
Vehicle:2006 Evolution IX RS Rally Red |
So if you do a 2.5 hybrid build do you need a new ECU also?
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12-27-2012, 07:40 AM | #145 |
Scooby Newbie
Member#: 161876
Join Date: Oct 2007
Chapter/Region:
NESIC
Location: Bristol, CT
Vehicle:02 Impreza WRX WRB |
no. As long as you have a reliable and talented machinist that can chamber the EJ205 heads to the block, then you don't even need to reflash the ecu**.
**I could get flamed for that, however, my brother's WRX has absolutely no performance mods and has a hybrid motor with ~50k on it. |
12-27-2012, 08:56 AM | #146 | |
Scooby Specialist
Member#: 279525
Join Date: Apr 2011
Chapter/Region:
Tri-State
Location: QUEENS NY
Vehicle:06 Fxt |
Quote:
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12-27-2012, 01:07 PM | #147 |
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region:
Tri-State
Location: North NJ
Vehicle:2015 STI ISM |
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01-08-2013, 11:41 PM | #148 |
Scooby Newbie
Member#: 343017
Join Date: Jan 2013
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je pistons
how are the je fsr pistons for hybrid setup?planning to do a build with new 257 block,je pistons and new 2.0 heads without machine combustion chamber on heads?jeremy at je said i wouldnt need to?anyone done this setup before?
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01-11-2013, 12:35 AM | #149 |
Scooby Newbie
Member#: 272632
Join Date: Feb 2011
Chapter/Region:
Tri-State
Location: Dutchess County NY
Vehicle:2005 STI WRB |
Mileage since installed: 31k since i bought the car, not sure how many before i owned it, when i bought the car i did not know it was a hybrid, but the car has been very solid and is a DD, each time it has been tuned mikey has told me the car runs amazingly well with no knock even loading up in 5th, do you guys think i should go to a 39 with low boost just to help exhaust flow?
Type Engine and Internals: 257 short block, not sure of internal Valve-train: believed to be stock 02 wrx heads Head Gasket Choice: not sure Current status: Car is running strong and sti mikey tuned on td04 around 290wtq and 250 whp at 17.4 psi |
01-11-2013, 02:00 PM | #150 |
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region:
Tri-State
Location: North NJ
Vehicle:2015 STI ISM |
Remember that the stock pistons are super weak
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