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Old 10-09-2011, 11:36 PM   #1
gcMatt
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Join Date: Mar 2011
Chapter/Region: W. Canada
Location: Alberta, Canada
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1995 wrx
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Anyone ever build an ej20g for some big turbo abuse? If so, how did it end up?

I plan on building up a spare Jdm ej20g (semi closed deck). Here's my plan but if anyone has some tips or suggestions please feel free to chime in.
Here's my build I have sorta planned out in my head.
Stock ver 2 sti heads (clean and low kms)
Wiseco pistons? (all I could find...)
H beam rods? Haven't found any specific to this motor
Race bearings
P&P header/grimspeed uppipe
Fmic + water meth
A bb turbo, something like a 3076r/ blouch Dom series.
Some sort of massive injectors
Fuel rails/pump etc
Anything I'm missing? I've built up a turbo motor before, but never a Subaru. Should be a fun journey

All of this in a gc8
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Old 10-10-2011, 08:26 AM   #2
Marnix
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Join Date: Dec 2003
Chapter/Region: International
Location: The Netherlands
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1984 AM5, 1994 BC4,
2010 BR5

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Rods: all EJ20G and EJ257 rods are interchangeable.
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Old 10-11-2011, 03:10 PM   #3
Subbiespeed
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2000 Impreza EJ20G
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u should sell urs and just buy mine and then u don't have to worry bout the swap or just buy mine
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Old 10-13-2011, 10:54 AM   #4
gcMatt
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Quote:
Originally Posted by Subbiespeed
u should sell urs and just buy mine and then u don't have to worry bout the swap or just buy mine
Haha no man ive got a ver 2 wrx imported from japan no swap needed!
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Old 10-13-2011, 06:34 PM   #5
Subbiespeed
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2000 Impreza EJ20G
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Y dont u throw some money this way baller
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Old 10-15-2011, 08:20 PM   #6
cmyles
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Location: Calgary, AB Canada
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2007 Built STi
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Quote:
Originally Posted by Subbiespeed View Post
Y dont u throw some money this way baller
+1 to that!
These motors arent cheap to build, i would much rather take the time and effort and do it to a EJ207 swap or something along those lines.
VERSION 7 SPEC C SWAP!
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Old 10-15-2011, 08:28 PM   #7
Subbiespeed
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Yea same here i love my motor and it makes good power but for the money it takes to get it in there id rather have a version 8
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Old 10-16-2011, 02:13 AM   #8
DHRDAN
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I mean it isn't really counter intunitive.


If you're going for a big turbo, you're gonna need the engine to take the heat and the pressure.

You can't cheap out about it. As long as the short block is solid, you can push it. The WRC pushes their stuff to the limits, but they rebuild their engines regularly.

I guess it boils down to how bad do you want to abuse it, and how much money are you willing to spend.
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Old 10-17-2011, 03:20 AM   #9
gcMatt
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I got the extra ej20g for next to nothing so i can easily cut my losses and move on to another motor. Im debating building this ej20g or slowly building a usdm 257. Im just worried about how difficult it might be to find parts for my jdm motor.
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Old 10-17-2011, 10:09 AM   #10
Subbiespeed
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2000 Impreza EJ20G
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well just be ready for overnighting **** or to make life easier. change the fuel rail so u can put the yellow sti injectors in(can't remember which fuel rail it is) and do the coil pack conversion and thats most of pain in the ass by its self. whats ur goals for this car other then put it in there and say i have a ej20g lol
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Old 10-17-2011, 10:26 AM   #11
gcMatt
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400hp at the crank seems like a reasonable goal. Thats like what 350whp? My car weighs 2600lbs with me in it so it will be fast at that power. i already have 2007 sti coil packs swapped in as well. i'll look into the fuel rails as well.
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Old 10-17-2011, 12:49 PM   #12
Subbiespeed
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2000 Impreza EJ20G
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What tranny r u using or r u getting gears for the rs tranny(i have RA close gear ratio in mine and i love them). 550s should be fine im bot having any problem with the 440s and im probably around 300 at 15 psi and im getting more then enough fuel as for the fuel pump a walbro should be fine...350awhp isnt gonna be hard to do esp safely since ur bottom end will be built in fact i think ull do that on low boost with a conserative tune
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Old 10-18-2011, 03:39 AM   #13
gcMatt
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Im planning on doing ppg helical gears in my wrx tranny. As for 550's ive got a set of tomei injectors and a walboro 255 i wanna play around with. I have everything i need (except management) for close to 300whp on a td05 16g, but i know i want more and with the size turbo i wanna run i could easily run 400whp. I dont know if i wanna push it that far however. This car still has to be reliable. So maybe instead of a gt30 i aim for an 68hta instead or a blouch 20g to get me to 350 whp? Less lag and i can still use the stock location... Im just rambling now
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Old 10-18-2011, 11:51 AM   #14
Subbiespeed
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Blouch 20g is nice if u got the money...theres alot of time attack cars that use it for that reason...i have 2 power fc units and when the other gets back from japan then im probably gonna sell it so if ur interested let me know as i dont need it
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Old 10-18-2011, 04:27 PM   #15
gcMatt
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Ill probably be running vipec v44 or v88 i habent decided. V88 is sweet but probably not necessary. I thought about a power fc but nobody will tune it localy... And im seriously concidering a 20g now, the 2.5L guys are making good numbers on em so i think ill meet my goals easily
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