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Old 05-19-2017, 10:58 AM   #26
Garret 2010i
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200whp on my 2.5i... yes lots of dollar bills spent
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Old 05-19-2017, 12:17 PM   #27
GEE-OTTO
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Are you running boost or is that just an extra mapped parameter ?
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Old 05-19-2017, 12:33 PM   #28
Garret 2010i
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no boost no. its manifold relative pressure. vr dyno thinks its boost
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Old 05-19-2017, 12:50 PM   #29
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Ours is just a 02 impreza, rs2.5 sedan, manual. I don't expect it to be like my big subie (AWD RT Dodge Magnum) but would like to build it up for my son (his 1st car, 15.5 yrs old) so hopefully he stays subie and will be prepared for a wrx at graduation in 3 yrs.
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Old 05-19-2017, 02:17 PM   #30
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Quote:
Originally Posted by banannersz View Post
Hey fellas/ladies. i was wondering how to increase more horsepower on a 06 2.5i. without putting a turbo in it. more of like the easy basic things you can do to increase horse power. help me out
I had a 1998rs2.5 with borla headers, high flow cat, 2.5in cat back, injen intake, CM clutch, lightweight flywheel, strut bars front back, sway bars front back, lowering springs, short shifter. Car ripped with no tune. I never found a chip or tuned this car cus it was years ago but you prb get a chip or tune for an 06 easy now.
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Old 05-21-2017, 03:41 PM   #31
ssssssantimonio
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Quote:
Originally Posted by Garret 2010i View Post


200whp on my 2.5i... yes lots of dollar bills spent
Post your.mods.pls.
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Old 05-21-2017, 08:08 PM   #32
Garret 2010i
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just buy one of everything, and dont stop till your broke! lol
im not really joking...

I boxed up the whole engine and shiped it to Tom at tech works.
his own 100mm 11.3:1 pistons, sti c rods and hardened crank
port and bended the heads to match his pistons, valve job and his stage 2 cams and springs
sti oil pump, fuel pump and injectors
act wrx clutch and light weight fly wheel, light weight pulleys
headers, low flow cat and 3" exhaust all the way
stock intake, i can't find one i like.
ecu flash for all my tuning
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Old 05-22-2017, 01:00 AM   #33
terrainasaurus
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Quote:
Originally Posted by Garret 2010i View Post
just buy one of everything, and dont stop till your broke! lol
im not really joking...

I boxed up the whole engine and shiped it to Tom at tech works.
his own 100mm 11.3:1 pistons, sti c rods and hardened crank
port and bended the heads to match his pistons, valve job and his stage 2 cams and springs
sti oil pump, fuel pump and injectors
act wrx clutch and light weight fly wheel, light weight pulleys
headers, low flow cat and 3" exhaust all the way
stock intake, i can't find one i like.
ecu flash for all my tuning
Uhmm, sound clip *PLEASE*

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Old 05-22-2017, 02:33 PM   #34
PA-Outback2000
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i assume this graph is an engine dyno, correct?
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Old 05-22-2017, 02:50 PM   #35
Garret 2010i
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its wheel hp, if that's what you are asking
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Old 05-22-2017, 03:21 PM   #36
Patrick Olsen
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Quote:
Originally Posted by PA-Outback2000 View Post
i assume this graph is an engine dyno, correct?
whp = wheel horsepower = chassis dyno
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Old 05-22-2017, 07:36 PM   #37
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Quote:
Originally Posted by AwdVt802 View Post
I had a 1998rs2.5 with borla headers, high flow cat, 2.5in cat back, injen intake, CM clutch, lightweight flywheel, strut bars front back, sway bars front back, lowering springs, short shifter. Car ripped with no tune. I never found a chip or tuned this car cus it was years ago but you prb get a chip or tune for an 06 easy now.
No chips but there are open source tunes out there. If only the AP's hadn't been discontinued for the 2.5i
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Old 05-23-2017, 10:41 AM   #38
Garret 2010i
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id like to add a sound clip, but i can seem to
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Old 05-23-2017, 12:37 PM   #39
Patrick Olsen
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Youtube?
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Old 05-23-2017, 12:50 PM   #40
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Quote:
Originally Posted by Patrick Olsen View Post
whp = wheel horsepower = chassis dyno
i just saw the "WHP" on the graph.
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Old 05-23-2017, 08:55 PM   #41
Garret 2010i
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Old 05-24-2017, 12:23 PM   #42
terrainasaurus
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Quote:
Originally Posted by Garret 2010i View Post
https://youtu.be/fpTY7CSZJyg

see if that works, lol
I love the way that sounds, like it wants to go! Is that 2.5" piping?

Nice looking suba ^.^
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Old 05-24-2017, 01:40 PM   #43
Garret 2010i
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no 3" all the way
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Old 05-30-2017, 12:13 PM   #44
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Originally Posted by Garret 2010i View Post
no 3" all the way
Why did you do this?
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Old 05-30-2017, 12:48 PM   #45
terrainasaurus
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Originally Posted by Garret 2010i View Post
no 3" all the way
Do you have wheel spacers? Or are the wheels offset so... they sit really nicely!
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Old 05-30-2017, 08:24 PM   #46
Garret 2010i
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no wheel spacers, just an offset.

why not 3"? 2 1/2" would be too restrictive on my set up.
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Old 05-31-2017, 02:59 PM   #47
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Quote:
Originally Posted by Garret 2010i View Post
no wheel spacers, just an offset.

why not 3"? 2 1/2" would be too restrictive on my set up.
3"...
must be the elusive "EJ60"


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Old 05-31-2017, 09:57 PM   #48
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2 1/2 inch is the biggest you want to go on N/A. This was the case for my EJ25 wagon and my Mondeo 2.5 V6.
With bigger piping you lose the 'Back pressure' in the system.
In other words the piping decreases the speed of flow of the exhaust and you end up losing the savaging properties of a well set up system.
3inch is fine for a turbo but not for N/A.
Don't know wh you would say 2.5 is too restrictive, I would say 3inch is too unrestricted.
But hey its you car and tune, if you like the 3inch then go for it. Would be interesting to see a back to back with a 2.5 and 3inch exhaust on the dyno
Does sound good for a N/A sub
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Old 05-31-2017, 09:59 PM   #49
williaty
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Unless you're increasing airflow SIGNIFICANTLY (like putting $10k+ into the build in todays money), with the EJ25 non-turbo the biggest you want to go is 2.25". Anything more than that actually drops the exhaust velocity, hurts scavenging, and reduces power.
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Old 06-01-2017, 09:29 AM   #50
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2.5" is max as we all know for N/A. not sure who told you to go that large.
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