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Old 11-16-2008, 10:43 PM   #1
stiwag
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Default 04' WRX Wagon 2.5l hybrid FP EvoIII 16g

This car was tuned very conservatively as a DD by Jorge of P&L. It was a hot day, 97 degrees and 18% humidity. Any suggestions on what to do next would be appreciated. I want to keep it reliable but could always use more power. It was tuned to about 16 psi and made about 270 awhp and 258 ft-lbs.

I would like to eventually get to about 350 awhp.

Pics in this thead:
http://forums.nasioc.com/forums/show....php?t=1376170



Here is list of the current mods:

ENGINE:

2.5l ej257 STi shortblock - arp studs, cosmetic .051 headgaskets
STi cams - modified to work on stock WRX heads
Cobb Accessport v1
Perrin lightweight crank pulley
Forced Performance EV03 16g turbo
GM electronic boost control solenoid
Power Enterprises 650cc injectors
Walbro fuel pump
Ebay Intercooler

INTAKE & EXHAUST

K&N air filter
Snorkus removed
Perrin MAF hose
Ebay turbo inlet
Perrin intercooler hoses
TurboXS oil catch can
Gutted stock uppipe
Perrin catted downpipe
Maddad Whisper 3in dual tip catback exhaust for wagon

WHEELS & SUSPENSION

Prodrive P1 17in
Prodrive springs
Whiteline 22mm front sway
Whiteline adjustable rear sway
Whiteline hard mount kit (rear sway)
Kartboy endlinks front and rear

BRAKES
Hawk hps pads front and rear

TRANSMISSION

STi tranny mount
Cobb short throw shifter
Cobb shifter bushings

INTERIOR

Prodrive Shift knob
STi Aluminum shifter surround
STi Chrome door handles

EXTERIOR

Foglight covers
Roof-rack deletes
Window tint

Im not sure what to do next, but a know that a STi 6sp is going to be on the list. I know the turbo is probably too small for the 2.5, but it was added back when the car still had a 2.0l. So, how should I get to 350hp reasonably? I don't want a huge turbo because lag is not cool. I just want a fast street car. No drag racing, but maybe a little autox.
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Old 11-16-2008, 10:48 PM   #2
stiwag
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WR Blue

Default future plans

Oh yeah, here were my ideas for what to do next...

Sti 6 sp tranny
Aquamist system with dds3
good set of gauges
retuned for higher psi... maybe 20?
bigger turbo... gt3071 or 20g?
pnp exaust manifold and cross pipe
grimmspeed up-pipe
brembos
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Old 11-16-2008, 10:50 PM   #3
mxpunk
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just get an fpgreen
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Old 11-17-2008, 12:05 AM   #4
stiwag
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from all the research I have seen the green seems like it will be too laggy for my taste. I think a 20g with the right supporting mods will spool faster and get me to my power goals.. especially with meth. The gt3071 seems a little better, but will cost more.
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Old 11-17-2008, 12:15 AM   #5
black night
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18g 8cm2 plus meth will give you great spool on the 2.5, and will get you 350 whp or really close to it.
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Old 11-17-2008, 12:36 AM   #6
stiwag
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The 18g may not be a bad idea, but I worry that it will not give me enough room to grow if I decide I need a little more. I also want to keep my car reliable. Would an 18g work better with lower boost target than an 20g? If i decided to try to keep boost under 20psi?
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Old 11-17-2008, 01:09 AM   #7
treystoys
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white/w/ce28n's

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If its tuned right, you can very reliably run 20-22 lbs with the evo 3 16g...so first, I'd turn the boost up with your current set up. Your leaving alot of reliable power on the table as is.

trey
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Old 11-17-2008, 02:47 AM   #8
fengrr
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Yeah you really need to crank the boost to 20++
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Old 11-17-2008, 03:11 AM   #9
QksilverRS
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TDO5H 20G+ Meth will get you this at least




<----------------------------------------
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Old 11-17-2008, 03:22 AM   #10
rexblake
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You might not get the power you want, but if you are looking to auto x it just keep the turbo you have and up the boost to 22+ psi. That should give you over 300 at the wheels for sure, add in a meth kit and you would be even higher, plus, with you 2.5 spool would be incredible to say the least.
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Old 11-17-2008, 03:59 AM   #11
Tomas26
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Blouch inside :D

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definetly increase boost for the tubo you have now.
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Old 11-17-2008, 07:29 AM   #12
Tenacious Bee
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So, what to play
with next ?

Default

Quote:
Originally Posted by stiwag View Post
from all the research I have seen the green seems like it will be too laggy for my taste. I think a 20g with the right supporting mods will spool faster and get me to my power goals.. especially with meth. The gt3071 seems a little better, but will cost more.
FYI, I had a 20G on my hybrid. It was a tdo5h/7cm so as 20G's goes it was small. I had it on my 2.0L set up and put it on after the hybrid swap just to get the car going. It spooled like a tdo4 but ran out of breath quickly. Top end was just flat. I never really got a good tune on it though so I cannot say how much that would have improved. Anyhoo I replaced it with an Blouch Dom 1. This is Blouch's version of a green sized turbo. 49 lbs/min Garret wheel in a ported tdo6H Mitsubishi housing. Spool is not an issue and it pulls very hard all the way to redline. I will have it on a dyno in a few weeks when the new local shop opens. I will send you a graph.
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Old 11-17-2008, 11:13 AM   #13
stiwag
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cool, I appreciate it. I definitely want to see how people are getting these numbers on 2.5 hybrids. I'm not sure how restrictive the 2.0l heads are. I did put on sti cams, so hopefully that will help.

to keep me happy until I get a new turbo...

I have decided to try some more boost on this turbo first, along with pnp exhaust mani etc. heatwrap everything. Maybe a CAI. +meth. This stuff will be relatively inexpensive so that I can save for a new tranny. Anything else that could help me get a little more up top without upgrading the turbo?
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Old 11-17-2008, 11:34 AM   #14
Tenacious Bee
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So, what to play
with next ?

Default

Quote:
Originally Posted by stiwag View Post
cool, I appreciate it. I definitely want to see how people are getting these numbers on 2.5 hybrids. I'm not sure how restrictive the 2.0l heads are. I did put on sti cams, so hopefully that will help.

to keep me happy until I get a new turbo...

I have decided to try some more boost on this turbo first, along with pnp exhaust mani etc. heatwrap everything. Maybe a CAI. +meth. This stuff will be relatively inexpensive so that I can save for a new tranny. Anything else that could help me get a little more up top without upgrading the turbo?
The heads themselves are not as much of a problem as the cams so you made a good move there. Something in the 264/272 range really opens things up. You may want to consider an EWG. That may widen the power band a bit. A set of headers may help up top as well but you really have a tiny turbo for your displacement. I feel you though. The small 20G was a lot of fun until about 5800 rpm or so. If your primary focus is autox a small 20G with an EWG to eliminate creep would be killer. My 2.0L had it spooled up pretty good in the mid 3k rpm range. I shut up a lot of 20G is too big for a 2.0L naysayers with that set up.

Figured I better post the graph before they comeback and hijack your thread LOL ! The dips you see were smoothed out on the next pull but I did not get a pic of the screen. Tim Bailey wanted me to get it out on the road to pull some data. I figured it was going back on the dyno but the data said all good.
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Old 11-17-2008, 12:49 PM   #15
slowmike
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WRB GG

Default

Quote:
Originally Posted by stiwag View Post
from all the research I have seen the green seems like it will be too laggy for my taste. I think a 20g with the right supporting mods will spool faster and get me to my power goals.. especially with meth. The gt3071 seems a little better, but will cost more.
Take a look at my dyno chart http://forums.nasioc.com/forums/show....php?t=1638791 My green hits peak torque at the same RPM that 16G does and my tune is conservative as well. It spools faster than the 18G I had when it was still a 2.0.
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Old 11-17-2008, 01:59 PM   #16
stiwag
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^^^^^
I got to say, your numbers look pretty good. How do those crowler cams stack up against stock sti cams? Im not sure what my compression is, but its what you would normally get with wrx heads and a ej257. I see you have some special pistons that lower the compression ratio. How does this affect your numbers?
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Old 01-02-2009, 05:47 PM   #17
Krang
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Dude... 22 psi or go home w/ the 16g. 20 is where it actually starts to like being itself and anywhere from 20-25 is the sweet spot.
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Old 01-02-2009, 05:55 PM   #18
Brady12
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I agree with pretty much all the guys, the 16G is not much of a step up from a stock STi. Its a much better snail, but you'll be maxing her out to get her near 300. Better off with a 20g that will let you have plenty of room with your boost, with out sacrificing lag.

She needs to breath on both ends, so porting your heads and some TGV deletes will help too. Again there is only so much that Turb will so, with out adding Meth or a higher octane fuel.

Nice numbers, and good luck
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Old 01-02-2009, 06:53 PM   #19
subaruNV
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WHITE/ EQ Tuned 350Whp

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Dom 3 FTW
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Old 01-03-2009, 05:34 PM   #20
shift0246
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<----21 reliable 1st gear..om nom nom nom nom
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Old 01-04-2009, 02:30 AM   #21
whitewagon8619
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i just finished with my own hybrid motor.

i also just got a evoIII for an amazing price.

i have gtspec header uppipe
three inch bellmouth catless downpipe
blitz nur spec 3 inch back
grimmspeed tgv delets
fmic
aps intake
perrin turbo inlet
blah blah blah.
im hoping to be able to get up there a bit.

i live on the east coast and i know a guy who put down 310whp with his 2.0 on an evoIII16g at like 21psi i think 93octane

i know you got more under that hood. just got to get her tuned again
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Old 01-04-2009, 08:03 AM   #22
Spenk
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At 74K miles one of my 2.0L heads cracked.

257 hybrid is in the process of being assembled:

11mm oil pump from '08 STI
APS 70mm CAI & TI
ARP headstuds
AP v.1
0.051" cometic gaskets
p/p/coated OE exhaust manifolds
bigger x-over pipe, coated
PWR topmount
TGV deletes
p/p/coated Blouch EvoIII16G 7cm2
Tial 38mm/Ultimate Racing EWG setup
catless Crucial Racing/STi muff stealthback
DW 650 squirters & fp
modded STi cams in stage 2 heads -- oversized valves & seat areas, mild pnp, titanium retainers, new springs
Exedy Stage 1 clutch & LW flywheel

Should be a fun street setup.

Last edited by Spenk; 01-09-2009 at 06:48 AM. Reason: update from shop, block is fine!
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Old 01-04-2009, 09:42 PM   #23
theguy
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www.CAMtuning.com

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Quote:
Originally Posted by subaruNV View Post
Dom 3 FTW
beat me to it. do it once and do it the right way. i don't have one but i have seen cars with them and it is by far the quickest spooling/ most hp for what you want...
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Old 01-04-2009, 10:55 PM   #24
rexworx
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Sounds like a nice build. Is Mike tuning it, or are you going somewhere else?




Quote:
Originally Posted by Spenk View Post
At 74K miles my 2.0L block cracked.

257 hybrid is in the process of being assembled:

11mm oil pump from '08 STI
APS 70mm CAI & TI
ARP headstuds
AP v.1
0.051" cometic gaskets
p/p/coated OE exhaust manifolds
bigger x-over pipe, coated
PWR topmount
TGV deletes
p/p/coated Blouch EvoIII16G 7cm2
Tial 38mm/Ultimate Racing EWG setup
catless Crucial Racing/STi muff stealthback
DW 650 squirters & fp
modded STi cams in stage 2 heads -- oversized valves & seat areas, mild pnp, titanium retainers, new springs
Exedy Stage 1 clutch & LW flywheel

Should be a fun street setup.
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Old 01-05-2009, 02:21 AM   #25
stiwag
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Man, that does look like a nice setup! Make sure you post up some numbers when it is tuned.

As for the domIII, I hear a lot of great things. I just need to find someone locally with one who will take me for a ride so I can get a sense of how it actually feels. Or they could let me drive
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