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Old 12-15-2004, 06:41 PM   #1
scoobydorift
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Default ej20g build up.

hi all-
well i sold the old project. but the good thing is im starting a new one.
anyway i need your guys opinion.
the engine: 94 jdm wrx ej20g

heads: possibly verion 3,4 or 5

crank: i want to go with a bigger displacement so im trying to use the 96-98 2.5 crank.

Rods: what rods do i use????? ive read somewhere that axis make rods just for this application, right? or what else can i use???

pistons: still again clueless?? i dont want to spend the money on STI pistons when i can get something for cheaper. but does JE, Arias ect already make pistons for the ej20g? or am i gonna have to get specs and them have a set custom built.

im on a budget but i can afford a bit more here and there...but are sleeves out of my buget, how much are they?
also im looking to get roughy 400whp with supporting mods(not the question here)
the main question is what rod,piston,crank and head setup will be the best for what i want.
Thanks for looking
Rick
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Old 12-16-2004, 04:04 PM   #2
phunkeeHomosapien
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just buy civic internals and hopefully they will fit i guess
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Old 12-16-2004, 06:10 PM   #3
RickInLittleElm
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Quote:
Originally Posted by scoobydorift
hi all-
well i sold the old project. but the good thing is im starting a new one.
anyway i need your guys opinion.
the engine: 94 jdm wrx ej20g

heads: possibly verion 3,4 or 5

crank: i want to go with a bigger displacement so im trying to use the 96-98 2.5 crank.

Rods: what rods do i use????? ive read somewhere that axis make rods just for this application, right? or what else can i use???

pistons: still again clueless?? i dont want to spend the money on STI pistons when i can get something for cheaper. but does JE, Arias ect already make pistons for the ej20g? or am i gonna have to get specs and them have a set custom built.

im on a budget but i can afford a bit more here and there...but are sleeves out of my buget, how much are they?
also im looking to get roughy 400whp with supporting mods(not the question here)
the main question is what rod,piston,crank and head setup will be the best for what i want.
Thanks for looking
Rick

It will be cheaper for you to get a usdm ej25 and start there. The rods are forged. J-E makes pistons for this motor. They also make pistons for the ej20 if you insist and they are about 400 bucks...not sure about the price of the 2.5s. 400 whp is a big order for a 2.0L piston...but it can be done.
For 400 whp, v7 or 8 heads, intake and ecu are what you need. The engine management that is out there is so much better for the later ecus....unless you are going stand-alone...not fun on a street car.
400whp and "on a budget" don't really mix <- stating the obvious

Good luck and keep us updated

_R
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Old 12-16-2004, 08:09 PM   #4
scoobydorift
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im not looking for a 2.5liter semi closed deck short block for 1500 dollars when i can get a 2.0 fully closed deck long block for around 500 with everything needed for a swap including tranny ecu harness and turbo ect.. and i posted this hoping me with my decision of putting a 2.5 crank in a ej20g and what pistons rods to use ect..

but thanks for the input and i will keep everyone posted with pictures and progrees of this swap.
Thanks
Rick
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Old 12-17-2004, 11:51 AM   #5
RickInLittleElm
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Wow! Everything for $500!?! Let me in on your source,please! I will jump into an older swap for that price...

_R
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Old 12-17-2004, 01:29 PM   #6
scoobydorift
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lol...last one.. but if you bought it it needs a rebuild... but those were my plans anyway so it works out nicely. i may go get the engine today i will post pictures here shortly.
Rick
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Old 12-17-2004, 01:31 PM   #7
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Quote:
Originally Posted by RickInLittleElm
Wow! Everything for $500!?! Let me in on your source,please! I will jump into an older swap for that price...

_R

I did
thanks again rick
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Old 12-17-2004, 01:48 PM   #8
DuoMaxwell
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Quote:
Originally Posted by scoobydorift
hi all-
well i sold the old project. but the good thing is im starting a new one.
anyway i need your guys opinion.
the engine: 94 jdm wrx ej20g

heads: possibly verion 3,4 or 5

crank: i want to go with a bigger displacement so im trying to use the 96-98 2.5 crank.

Rods: what rods do i use????? ive read somewhere that axis make rods just for this application, right? or what else can i use???

pistons: still again clueless?? i dont want to spend the money on STI pistons when i can get something for cheaper. but does JE, Arias ect already make pistons for the ej20g? or am i gonna have to get specs and them have a set custom built.

im on a budget but i can afford a bit more here and there...but are sleeves out of my buget, how much are they?
also im looking to get roughy 400whp with supporting mods(not the question here)
the main question is what rod,piston,crank and head setup will be the best for what i want.
Thanks for looking
Rick
Ok man this has already been done in Japan. First take this with a grain of salt Please. You would be better off going 2.5 or going 2.2 stroker. I can post a few Japanese mags for you if you like about the subject but to cut it short its expensive extremely and its not easy by any means due to the stroke of the crank. If you had to do it take the EJ20G block change the internals with a 2.2 or go AM forged 2.0 pistons and ver 7 heads. Again remember grain of salt
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Old 12-17-2004, 02:03 PM   #9
phunkeeHomosapien
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so is the answer yes or no to the question of finding benefits in using the 2.5 crank in this build?
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Old 12-17-2004, 02:29 PM   #10
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IMHO no don't do it, my reason is you can build a better motor for the same price and I do mean better. They did this idea he has and had to shave the heads of the pistons to make it work. It was cheap but the car didn't last long in the process and the number were anything but stunning!!!
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Old 12-17-2004, 02:43 PM   #11
jamesfacts
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Nice deal! $500!
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Old 12-17-2004, 05:36 PM   #12
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Quote:
Originally Posted by DuoMaxwell
IMHO no don't do it, my reason is you can build a better motor for the same price and I do mean better. They did this idea he has and had to shave the heads of the pistons to make it work. It was cheap but the car didn't last long in the process and the number were anything but stunning!!!

thanks for your input, but give me some ideas for a "better engine"... right now im in the what to do phase. i know what i want my final result to be, but i just need peoples opinion on how to get there. if worst come to worst and i dont get any real solid answers for teh 2.5 crank i will just got with 2.0 forged pistons and rods, and version 4 heads and maybe a slight over bore. and for what it is worth i will be running a apexi power fc.
keep the ideas coming guys im open to everything. and thanks for everyones input.
Rick
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Old 12-17-2004, 09:56 PM   #13
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Hmm...I might have to take notes on this.lol
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Old 12-17-2004, 10:09 PM   #14
DuoMaxwell
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Ok lets put it like this
If you can get it cheap a EJ20G stroked to 2.2 can lay down the smack in a vary serious manner and I am not talking 400 that can be accomplished without stroking. The engine management you have is perfect and the heads will work fine. Though I would save up for some bigger cams (nice long flat tq curve). You problem would be a suitable turbo IMHO and I would leave the green out of the picture.

My Picks
EJ20G stroked 2.2
TD06-25G or HKS 3037
Bigger cams 256in 262ex
Headgasket gonna be like a 1.8 or a 2.0mm
Oh and the Apexi boost actuator for the Power FC to hold boost nice and long
Its expensive but building something like that will pale a 2.5 STi heavily modded!!!!!
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Old 12-17-2004, 11:00 PM   #15
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are you talking about the stroker kits from aftermarket companies(cant remember which ones)..arent they like 2200 dollars.. thanks for the info. post a link to the stroker kit please.
Rick
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Old 12-18-2004, 05:16 AM   #16
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scoobydorifto

I am gonna build my EJ20G now while you build yours. We will see if this works because I can get my hands on the Forrester 2.5 STi crank new for $500. I will use the EJ20G block but I will be using the EJ20G heads ported and polished with different cams!! As for the kit I have to do some research but they have a 2.2 kit that goes for like $1500 now. I will get back with you after I go to Autobacs tomorrow!!!

Reason:
I got a very nice Christmas gift from my Family and Friends back home.
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Old 12-18-2004, 02:34 PM   #17
scoobydorift
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hey let me know on that stroker kit.
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Old 12-18-2004, 09:46 PM   #18
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well i went and picked up the engine today...pictures are soon to come(it was too dark to take any)
Rick

any more info on buildups would be great.
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Old 12-19-2004, 07:27 PM   #19
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Default Pictures








Sorry if they are too big.
Rick
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Old 12-19-2004, 08:21 PM   #20
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oh sick red needle nose pliers...are those JDM? jk
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Old 12-26-2004, 03:09 PM   #21
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more pics coming soon.
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Old 12-30-2004, 10:30 PM   #22
Jelphree
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Good luck with your project. It has sparked some interest. EJ20g fully closed deck. I wonder if I can find one in LA?
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Old 01-01-2005, 02:03 AM   #23
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Hey Toda makes a bore up kit the running price is $1500!!
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Old 01-04-2005, 01:25 PM   #24
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Would the N/A EJ22 phase 1 crank stroke the EJ20G? or are they the same?

I ask because, I'm also working on getting an EJ20G in my car to replace the current ej22 n/a block
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