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Thread: SO.. I want a 3.0

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    SO.. I want a 3.0

    Since there are oh so many H6 3.0 Outbacks rolling around, and some of them sitting in JYs from wrecks, what are your thoughts on robbing the H6 and putting it in my '92 sedan? What's required?

    I'm not sure of the engine code, though I know EJ engines and trannies are legos, but I've never heard of the H6 going into anything, either..

    Bad idea? Good idea? Only in theory?

    I've been craving torque, and I kinda wanted to create my own backyard 3.0R..
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    well there is a guy over on nasioc dropping an EJ33 in his legacy (think SVX) and apparently its going alright.

    there is hope, sure, but no more good info from me!
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    the hardest part would be converting your car from OBDI to OBDII, along with the rest of the wiring nightmare

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    Exactly, the H6 is an EZ30 something or other, which means your EJ tranny wont bolt up, which means you'll need a new tranny, driveshaft, and rear end, which means you may have to get a custom made driveshaft because I think the newer OB's are just a tad longer than your car (I may be wrong, but it seems like a fair guess). I saw one dropped into 93 or 95 Impreza, and boy-o-boy did it look tight...that engine is a beast in size compared to your EJ. My guess is it would fit, but your best bet would be to ask around and see if anyone has done it or knows of anyone who has (ask some of the vendors or subaru specialist shops, they may have done it or know of someone who has. It will definatly be a nightmare in terms of getting it to fit and bolts to match up and the wiring will be something of a good glimpse as to what hell is. If you have all the money needed to get all the parts to swap it over, get it in, get all the things to bolt it up, or get parts fabricated, I'd say you are a.) a goddess, and b.) awesome! Good luck with everything, I'll see if I can find that website with the writeup on the H6 swap into that 93 or 95 Impreza (at least both are the same chassis).
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    Thats it! Read away, the pictures are at the link up top.
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    t3h ch33se Wiscon_Mark's Avatar
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    which gets better mileage? 2.5T or 3.0? They're the same HP rating as far as the 2005 legacies go.....
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    SLi Lurker Pwise2326's Avatar
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    From what I gathered from an '05 LGT owner at a gas pump one day the thing gets around 14mpg...depending how you drive. I haven't seen any numbers, check the subaru site, should have them listed there. I would assume the turbo would be more fuel efficient...but the H6 can't be less than 14mpg...that'd be nuts.
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    Thanks, Pwise.
    I've been dreaming of how much torque could actually be had with a 3.0 in my 92.. which would be nice to say the least! What would be the difference if I went with a an EJ33, instead? Aside from SVX tranny problems, they're overall good cars, right?
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    Ugh, after reading all that, I don't wanna. *sigh* I really really didn't want to go FI, but it's looking like that's what it takes to go fast. Damn you turbo people, damn you!
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    well depending on your goals for the car, you don't need to go FI. More displacement is what gets you the torque. Thus FHI brought over the 2.5L STi for us torquey Americans. There isn't much torque in the EJ20t as compared to the EJ25t.

    PhatSuby (on NASIOC) is dropping in a quasi-new EZ30 (JDM) which also has AVCS, IIRC. That will really pull hard.

    The early H6's were out of the SVX (or Alcyone in Japan, IIRC) and were coded EZ33; = 3.3 liters.

    And you'd get the same amount of torque he would (if he'd leave well enough alone....but he isn't. He feels the need to turbo it )....but you'd have a better power to weight ratio. It'd be through the roof.

    GGT
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    I didn't know they made an EJ30.. I'll have to research the EJ lineup and find which one I want, although I think a built 2.5 could fulfill what I want it to do.. I really just want more power, that's it. I'm not driving 1/10th.. ya know?
    AVCS, what is that?
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    I forget what the acronym means but I want to say thats subaru's variable valve timing found on the newer JDM engines..not sure if the new STI blocks have AVCS yet...then again, correct me if I'm wrong.
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    I figured it was some kind of timing dealie.. sounds neat. Looks cooler than VTEC, anyway.. heheeh..
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    Advance(d) Valve Control System?
    Variable Cam something-or-other?
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    I've heard that the new EZ30's leak oil like crazy. Just something to think about Tristan.
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    shhh! you'll give away my secret identity here!
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    One of the boys in Australia is doing the 3.0l conversion with a big turbo. His power output is expected to be around 700hp

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    SUHWEET.

    If I was tryna get 700hp, though, I think I'd put it in a drift-spec Altezza.
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    If you are looking to the 250hp range, about how much the 3.3's make. You could always talk to the boys over at COBB. Last time I checked with them they made a N/A 2.5l that is strong enough to handle everyday driving that put out 250hp. Think the price was some where around 5-6 thousand along with sending them your old engine core. Have to check their site again for the exact details. Might be a much smaller headache than trying to rewire your entire car... although you would probly have to make the same changes since your car is a 92...

    Anyone else have an opinion on this route?

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    It's a good route to go, and it's probably what I'll end up doing. I don't want a turbo, and I'm pretty confident an NA 2.5 would be able to give me what I need. I'll go with some cams, and the usual bits, but nothing more. I don't need to be THAT hardcore. I'd rather be a better driver.
    I'll be scoring a 2.5L from somewhere, but I'm not sure when or where.. Still searching.
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    I may have a 2.5RS motor somewhere in the next 6 months. Ill keep you posted.
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    t3h ch33se Wiscon_Mark's Avatar
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    tristan, you should really put a big turbo on a EZ30

    I'm a big fan of N/A

    Its a lot more original, IMO.
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    Quote Originally Posted by Wiscon_Mark
    tristan, you should really put a big turbo on a EZ30

    I'm a big fan of N/A

    Its a lot more original, IMO.
    I think a monster NA would be really really cool. If I can get InSaNeAzNkId to reply, I'm gonna get his shortblock.
    Quote Originally Posted by Wiscon_Mark
    I'd challenge you but you have a lot more knowhow than I do...it would be like racing a Justy stock against an STi
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    t3h ch33se Wiscon_Mark's Avatar
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    Quote Originally Posted by Tris_STi
    I think a monster NA would be really really cool.
    Yes it would
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    Quote Originally Posted by Tris_STi
    I think a monster NA would be really really cool.
    Well, that's what I hope to do someday, unless gas is $15/gallon... :?
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    I just read this whole thread and being a SVX owner I thought I would straiten out some miss information.

    SVX has a EG33
    Newer outback has a EZ30

    Any EJ series trany will bolt up to a EG33, but I think there will be two unused holes in the EG33 block.

    Many SVX owners have installed wrx and GC8 5 and 6 speed tranys in there SVX.

    EG33 uses a timing belt
    EZ30 uses a timing chain

    EG33 has IRIS (Induction Resonance Intake System)

    There is currently a company building a Super charger kit for the EG33 (ecutune). It runs at 6-7 PSI and will put out around 400 HP.
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    t3h ch33se Wiscon_Mark's Avatar
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    Quote Originally Posted by AFBeefcake
    There is currently a company building a Super charger kit for the EG33 (ecutune). It runs at 6-7 PSI and will put out around 400 HP.
    damn, I guess I need to get me an EG33, that supercharger, and a 6MT for my subie

    That would be a good route, IMO, if it weren't super expensive
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    You could get a supercharger AND a turbocharger

    I know thats silly. Although, I have seen it done on an RB25TT and and M3. Mucho expensive, but also mucho fast
    [url=http://www.EastCoastBoost.com]East Coast Boost[/url]

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    t3h ch33se Wiscon_Mark's Avatar
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    what would be ideal, is a supercharger/turbo setup where the supercharger turns off when the turbo is fully spooled. Talk about low and high end torque

    but back to NA!

    I'd like to hear what you do with that shorblock Tristan
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