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Old 11-22-2015, 11:47 AM   #1
aaronlow
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Default just swap in a jdm sti ej207, edm 6mt and a blouch dom3 8cm

Car : EDM 2005 WRX

used to be on stock EJ205 VF34 (22psi on 93) 5MT stock clutch, drives great but lack top end.
car is on this setup for 7.3 years. no problem so far.
hit 22psi @ 3700rpm 3rd gear, good enough for my DD.

swapped in a
JDM STI EJ207 (avcs hole plugged), avcs connector broken!
Blouch Dom 3r 8cm (rewelded leaking hotside)
04 STI EDM 6MT with Exedy Twin Plate
use back stock 05 EDM wrx ecu
took 1 week+ for the shop to do the swap. many small items to clear too.
stock header (aftermarket one cracked a long time ago, reweld and still leaking so just swap to stock)
unknown uppipe (might be GS, and i saw flexi joint) (forgot to wrap it)
3 inch downpipe
Grimmspeed brand new TMICc (what a bitch to install: semi-big turbo and a cusco strut bar do not help, scratched the new tmic while "forcing" it in)
DW 750cc / Okada coilpack / SARD FPR / Perrin parallel fuel-lines and rail set (looks scary)
Big TB
APS 65mm CAI
no AVCS as no JDM V8 ECU
meth kit installed but not powered on
ron93 (no meth)
tuning appointment soon, praying for better spool.

Only question,rpm to 22psi : 4600 rpm @ 4th gear on quick-tune

check out the tight fitting
https://dl.dropboxusercontent.com/u/...123_182054.jpg


22 Dec 2015 - updates
car was pro-tuned. verdict: dom3r on non-avcs ej207 v8 lag bad. nothing below 4.5k. peak power is decent though as the engine can rev to 8krpm.
now thinking to change to a smaller turbo to get my mid range torque > maybe a dom1.5xtr?
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Last edited by aaronlow; 12-22-2015 at 03:10 PM.
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Old 11-22-2015, 11:49 AM   #2
livid_wrx
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WRB

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Cool story.
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Old 11-22-2015, 11:54 AM   #3
cashrolling
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Curious to see ur spool on the dom 3, chek my thread about it....
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Old 11-22-2015, 11:57 AM   #4
aaronlow
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Quote:
Originally Posted by cashrolling View Post
Curious to see ur spool on the dom 3, chek my thread about it....
i posted this thread because of seeing you having similar stuffs
I am curious to see my spool too
worst case will just get a dom1.5XTR
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Old 11-22-2015, 01:18 PM   #5
ImprezaLover94
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At least you ordered the best exhaust turbine size for your engine...
It should be better than the 10cm. Let us know.
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Old 11-23-2015, 04:58 AM   #6
Fierysun
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2003 EJ207 S204 Wagon

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Without avcs, you lost a lot of bottom end drivability/torque. You should reconsider getting that working and running either a v7 or v8 jdm ej207 ecu.
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Old 11-23-2015, 02:23 PM   #7
aaronlow
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Quote:
Originally Posted by Fierysun View Post
Without avcs, you lost a lot of bottom end drivability/torque. You should reconsider getting that working and running either a v7 or v8 jdm ej207 ecu.
thanks, i am taking this one slow step @ a time.
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Old 11-23-2015, 06:00 PM   #8
Fierysun
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Quote:
Originally Posted by aaronlow View Post
thanks, i am taking this one slow step @ a time.
One other thing to note on not running the avcs, the cam timing is actually retarded when they are not functioning. So it's not the same as a motor that doesn't have avcs where the cam timing isn't retarded.
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Old 11-23-2015, 10:29 PM   #9
cashrolling
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Well ive been driving some more and i have to tell u im starting to get very used to it, so that im not planing to change it anytime. Once u get used to the different driving style ur good, and mind that boost doesnt drop at all between gear changes. Also when ur driving easy its plenty of power at low rpm, as 7 or 8 psi come on pretty quick and is enuff for rgular driving. As u see my mind is completely change, just like my tuner predicted. The top end power is out this world. If anything i wait to make it even better by stroking my motor to 2.2 or 2.3...... keep us posted on urs...
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Old 11-23-2015, 10:30 PM   #10
cashrolling
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Ps.....make sure to use a light flywheel...
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Old 11-23-2015, 10:59 PM   #11
aaronlow
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Quote:
Originally Posted by Fierysun View Post
One other thing to note on not running the avcs, the cam timing is actually retarded when they are not functioning. So it's not the same as a motor that doesn't have avcs where the cam timing isn't retarded.
thanks, it will mean i have to open the head to "undo" the clogged avcs hole
(correct me if i am wrong)
then avcs wiring and v8 jdm ecu.
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Old 11-24-2015, 01:00 AM   #12
Fierysun
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Quote:
Originally Posted by aaronlow View Post
thanks, it will mean i have to open the head to "undo" the clogged avcs hole
(correct me if i am wrong)
then avcs wiring and v8 jdm ecu.
Yup, the IAP wiring kit, v8 jdm ecu, and open source tune.
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Old 11-24-2015, 02:57 AM   #13
subaru_gc8
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theres a guy that i saw posted on face book that clark turner tuned with a 1.5 that got 500 with 24psi and e85 with a cosi stroker and s2 cams
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Old 11-24-2015, 11:02 AM   #14
aaronlow
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engine oil temp went up by 10 degreeC on cruising.
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Old 12-14-2015, 01:46 PM   #15
cashrolling
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Any update? Is the dom 3 tuned?
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Old 12-22-2015, 03:11 PM   #16
aaronlow
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Quote:
Originally Posted by cashrolling View Post
Any update? Is the dom 3 tuned?
yes, on 22 Dec, tuned.
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Old 12-22-2015, 03:57 PM   #17
cashrolling
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When do u see full boost on 4th? I presume around 4600rpm....
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Old 12-24-2015, 02:59 AM   #18
aaronlow
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Quote:
Originally Posted by cashrolling View Post
When do u see full boost on 4th? I presume around 4600rpm....
4600 - 22 psi (as fast as my eyes can see from rpm to boost gauge) , power is flat from all the way to 8000rpm
previously vf34 - 3rd gear : 3700, but after massive power dip after 6000rpm

i am on stock header. tuner advised header is worth another 10 whp.

Last edited by aaronlow; 12-24-2015 at 03:17 AM.
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Old 01-29-2016, 04:22 AM   #19
aaronlow
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so basically my dom 3 spool by 4600rpm in 4th gear (6speed) and i have a power band of 5-8k rpm. Anything below is no power.
I wonder what i can to get my mid-range back beside swapping turbo.

1. turbo blanket purchased but not installed yet
2. change stock bpv to a forge unit?
3. wrap my up-pipe
4. i am on 65mm APS, i wonder if a 73mm Kstech CAI will increase my peak whp.
5. I do not want to go meth.
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Old 01-29-2016, 01:19 PM   #20
subaru_gc8
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Quote:
Originally Posted by aaronlow View Post
so basically my dom 3 spool by 4600rpm in 4th gear (6speed) and i have a power band of 5-8k rpm. Anything below is no power.
I wonder what i can to get my mid-range back beside swapping turbo.

1. turbo blanket purchased but not installed yet
2. change stock bpv to a forge unit?
3. wrap my up-pipe
4. i am on 65mm APS, i wonder if a 73mm Kstech CAI will increase my peak whp.
5. I do not want to go meth.
honestly there is not much you can do, im sure you tuner might be able to run more timing but that is about it.. the other thing you can do is when you decide to build your block, get like a 9:1 of if you have e85 do 10:1 compression and stroke it. that should help but your final numbers will suffer a bit. Kinda the trade off with the big turbos.

oh and the 73mm intake wont help unless your maf is maxed out
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Old 01-30-2016, 01:48 AM   #21
D-Rodman
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02 wrx wag wrb ej207

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You need a jdm v7-v9 ecu, avcs wires, 3 port setup ebc and open source tune, as suggested above. Working avcs is critical to have low end and mid range power on the ej207. A lighter crank pulley or lighter flywheel also help. My ver 8 with stock vf37, stage 2 tune to 19 psi is fully spoiled by 3,400 rpm.
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Old 01-31-2016, 10:53 AM   #22
Scooby2002
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Getting avcs will help a lot down low. I have 2 ej207s. One has working avcs and the other doesn't. The one that doesn't have it is a dog below 4k and then it wakes up.
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Old 02-01-2016, 07:35 AM   #23
aaronlow
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Quote:
Originally Posted by Scooby2002 View Post
Getting avcs will help a lot down low. I have 2 ej207s. One has working avcs and the other doesn't. The one that doesn't have it is a dog below 4k and then it wakes up.
thanks everybody , yet without AVCS, 4k below is a dog. and worst than ej205.
now is to think how to get AVCS hooked up.
My shop said the cam is plugged already, i wonder how true it is.
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Old 02-01-2016, 07:36 AM   #24
aaronlow
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pop sound and then high AFR at idle and sounds like a diesel truck. this happens 2 days back. now all fixed.
new uppipe no flexi joint.

strangely i can't hear the turbo spool sound as clear now. very muted.

Last edited by aaronlow; 02-01-2016 at 07:54 AM.
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