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Old 07-02-2005, 08:27 PM   #1
Kostamojen
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Default Technical Information on the 2006 173hp N/A motor

Hey guys, just wanted to mention I got some printouts of the 2006 Forester and probably going to be in the Impreza too N/A motor. It uses the I-Active Valve lift system with the SOHC, which most people will know if they read up on the new models, which looks a bit different from the AVCS in the DOHC motors. Ill try and scan them tonight and post them up, its pretty interesting.
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Old 07-02-2005, 09:28 PM   #2
NaturallyAspirated
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Sounds awesome.
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Old 07-02-2005, 10:52 PM   #3
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Is the 2006 N/A engine still going to be 2.5 liters?
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Old 07-02-2005, 10:55 PM   #4
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Ok, here we go...

http://community.webshots.com/album/384399999ynOfJe

Thats all 4 pages about the N/A I-active. Its kind of just a technical brief, but its pretty decent.
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Old 07-02-2005, 10:55 PM   #5
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Yup, sounds like a great motor as well!
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Old 07-06-2005, 08:19 PM   #6
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Yeah... sounds like pretty much ALL of the new Subaru motors are 2.5... ditching the ej20t too
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Old 07-06-2005, 09:30 PM   #7
xtorted-legacy
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more displacement = the american way.

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Old 07-06-2005, 09:40 PM   #8
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True, but due to our environment Americans demand low end torque.
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Old 07-06-2005, 09:45 PM   #9
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Thank You!!!
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Old 07-06-2005, 09:50 PM   #10
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Quote:
Originally Posted by GuyLR
Thank You!!!
Ya, no doubt. Thanks kastamojen. Pretty cool.
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Old 07-06-2005, 09:55 PM   #11
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Quote:
Originally Posted by Kostamojen
Ok, here we go...

http://community.webshots.com/album/384399999ynOfJe

Thats all 4 pages about the N/A I-active. Its kind of just a technical brief, but its pretty decent.
wow! good work sherlock!
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Old 07-07-2005, 01:52 AM   #12
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I wouldn't mind the a 3 liter RS hehe
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Old 07-07-2005, 02:10 AM   #13
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Quote:
Originally Posted by DragonRM
I wouldn't mind the a 3 liter RS hehe
how bout a 4.0L SOHC 12V V6? Just copied it off from a mustang XD

Well... Eventhough the North american subis are being americanized, subaru still wants to keep the rally heritage of the impreza.
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Old 07-07-2005, 03:14 AM   #14
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Quote:
Originally Posted by DragonRM
I wouldn't mind the a 3 liter RS hehe
About to be done, again:

http://forums.nasioc.com/forums/showthread.php?t=748385
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Old 07-07-2005, 05:00 AM   #15
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thats pretty cool
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Old 07-07-2005, 06:28 AM   #16
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edit -nm hehe
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Old 07-07-2005, 08:58 PM   #17
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dammit, why didnt they give us ACVS for the 05s?!
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Old 07-07-2005, 09:18 PM   #18
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Quote:
Originally Posted by Dash_Martino
dammit, why didnt they give us ACVS for the 05s?!
why you ungrateful little prick!!! why can't people just be happy with what is given?

avcs is probably not as efficient a system. besides, people who want performance are going to get the turbo models, it would be senseless to make a performance oriented adjustable valvetrain in the n/a models.
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Old 07-07-2005, 10:26 PM   #19
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Quote:
Originally Posted by Dash_Martino
dammit, why didnt they give us ACVS for the 05s?!
In Japan this year they have an AVCS DOHC EJ20 that makes 190 HP for the 5MT and 180 for the 4EAT. Apply that to a 2.5L and even with US gas you could easily have a 210-215 HP N/A motor! That would be nice but we'll never see it.
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Old 07-08-2005, 02:30 PM   #20
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hey bud trust me i'm happy with what i got, but it kind of sucks that they changed it over to a variable system the year after i got my car. But like GuyLR mentioned, it would have been nice to see a potent NA motor with variable timing, especially since everyone kind of talks down our NA motors right now. Would have been nice to have a peppier high end of the rev band than what comes in the 05s, but hey what can ya do right?
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Old 07-08-2005, 02:52 PM   #21
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Quote:
Originally Posted by Dash_Martino
hey bud trust me i'm happy with what i got, but it kind of sucks that they changed it over to a variable system the year after i got my car. But like GuyLR mentioned, it would have been nice to see a potent NA motor with variable timing, especially since everyone kind of talks down our NA motors right now. Would have been nice to have a peppier high end of the rev band than what comes in the 05s, but hey what can ya do right?
Be happy that you car is a MAF!!! I was so pissed when I found out that the 05 were MAF cars. J/K At least I got the plastic intake manifold But in all honesty I wish subaru would bring us a better NA engine from the factory. Oh well, back to the build.
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Old 07-11-2005, 09:53 AM   #22
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05 are MAF cars? I thought they used both... MAP and MAF.

Oh well.
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Old 07-11-2005, 01:32 PM   #23
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Quote:
Originally Posted by xtorted-legacy
more displacement = the american way.

Why is more displacement bad?
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Old 07-11-2005, 04:34 PM   #24
Patrick Olsen
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Quote:
Originally Posted by Handsdown
avcs is probably not as efficient a system. besides, people who want performance are going to get the turbo models, it would be senseless to make a performance oriented adjustable valvetrain in the n/a models.
Yes, you're totally right. Porsche, BMW, Toyota, Honda, etc must have a bunch of idiot engineers working for them. What were they thinking, putting variable valvetrain geometry on N/A cars???

Pat Olsen
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Old 07-11-2005, 04:42 PM   #25
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Quote:
Originally Posted by Patrick Olsen
Yes, you're totally right. Porsche, BMW, Toyota, Honda, etc must have a bunch of idiot engineers working for them. What were they thinking, putting variable valvetrain geometry on N/A cars???

Pat Olsen
'97 Legacy 2.5GT sedan
Exactly, I agree. +1 !
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