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Old 12-06-2003, 01:36 PM   #1
serious
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Default Good turbo for EZ 3.0 H6?

Hi all, i'm wondering what a good turbo would be for the new 3.0 h6 subaru engine? Twinturbos would be cool, but i think that would get complicated too quick, plus it would add a lot of extra weight.
What do you guys think? I'm looking for a good all around street turbo that wouldn't fall on its face, but not take forever to spool.
Brent
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Old 12-06-2003, 03:32 PM   #2
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I'm not sure anyone has ever turbo'd the H6. I've never heard of any off the shelf kit, so you'd be looking at a completely custom setup. It would be cool if you're willing to put a ton of work and money into it.
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Old 12-06-2003, 07:39 PM   #3
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I have no clue.
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Old 12-06-2003, 10:53 PM   #4
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I had a T3 on my SVX, while not a H6, it's still a 6... It kicked, but a GT25 would be about perfect.
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Old 12-07-2003, 05:48 AM   #5
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Call a turbo specialist shop and tell them what you are doing. Don't forget to tell them that your motor only has one exhaust port shared for 3 cylinders. (bad btw)
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Old 12-07-2003, 12:58 PM   #6
serious
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The 3.3 is still a H6 . I'm still in the begining stages to to discover if i even want to do this. I don't think anyone has done it yet, so that leaves me out in the open.
Brent
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Old 12-07-2003, 08:48 PM   #7
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Question Well

Quote:
Originally posted by serious
The 3.3 is still a H6 . I'm still in the begining stages to to discover if i even want to do this. I don't think anyone has done it yet, so that leaves me out in the open.
Brent
Hello Brent,

Besides $$$, is there anything stopping you from persuing this project? Had I had a 3.3H6 and $$$, I'd be all over it just because no-one has done it. Soo.....

I have a 2.7 H6 now that I had tried to have turbo'd at Rallispec only 3 months ago. I had to pull out due to $$$$ reasons but let me come into some $$$ again. Then it's on! Next time around, I'm just handing them 4k or so and running rather than holding on to the $$$ and stupid stuff happening making me have to use it.
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Old 12-07-2003, 09:06 PM   #8
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All things considered, if i dropped 10 grand into this car just in engine and drivetrain would be no big deal to me. At least when i go to the dealer and look at the sticker of a new sti anyway!
I would not go with the older er 2.7 engine. It's just a glorified ea82 engine + two cyclinders. I had a complete 95 svx with only 60k on it ready to do the swap then i backed out due to the size of the 3.3. It was too big for the engine bay. Or at least bigger than i wanted to go.
Now i have a chance to buy a complete outback with the 3.0 in it.
I don't have it yet, that's why i'm asking questions. I've been wanting to do the swap for the longest time. I've had several different engines in my garage ready to go into my legacy, but i keep putting them off.
Currently i have a complete wrx engine swap just sitting there looking at me like i'm a dumb A$$. Next to it sits a turbo 2.2 motor, with the same look on its face .
If i do this project, it will be something sick .
Brent
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Old 12-07-2003, 10:31 PM   #9
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Quote:
Originally posted by serious
If i do this project, it will be something sick
Hell yeah! This is my dream project, and I'll attempt it myself one day when I have the money. From one Brent to another: rock on!

Brent
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Old 12-07-2003, 11:44 PM   #10
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If you aren't a big forced induction geek and don't know how to set up and read compressor maps this should help you

http://www.turbofast.com.au/TFmatch.html

this is a pretty cool/simple utility, give it your motors displacement, the redline, and how much boost you want to run, and it will tell you what kind of turbo you should use

If you are however a big forced induction geek and can read and understand compressor maps, this is the utility to use:

http://www.turbofast.com.au/turbomap.html

If you have done your homework, you should post the VE numbers for that h6 motor, I'm sure alot of us would be curious to see.
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Old 12-08-2003, 02:09 PM   #11
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Forced Air Technologies has a turbo kit for the SVX engine..........
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Old 12-08-2003, 08:09 PM   #12
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Quote:
Originally posted by leondal
Forced Air Technologies has a turbo kit for the SVX engine..........
They advertise the kit, but they don't stock any of the parts. Its a custom job.

As for the new H6 3.0, slapping on twin turbos sounds cool, but as you said, it greatly increases complexity. Spend the extra money you save by using a single turbo to buy a water injection system and figure out a good location for an intercooler. Does the new H6 have forged pistons?
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Old 12-08-2003, 10:07 PM   #13
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I don't think it has much of anything forged, other than maybe the crank.
Brent
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Old 12-09-2003, 03:36 AM   #14
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You may need to do a very custom intake, like from scratch.
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Old 12-09-2003, 12:11 PM   #15
serious
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I think everything would be like from scratch .
Brent
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Old 01-06-2004, 12:00 PM   #16
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so no one has ever turboed a 3.0 before...darn, i was hoping there might be a kit out there...hmm
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Old 01-06-2004, 02:03 PM   #17
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I would guess that the headers route the same way as any other impreza/legacy...so the kits very well may fit
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Old 01-06-2004, 02:20 PM   #18
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This engine uses a 3 into 1 header. It would be a typical turbo setup that would look a lot like the ones for the svx.
Brent
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Old 01-06-2004, 07:50 PM   #19
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yeah I know 3 to 1 but the connection to the cat section is probably in the same place...as all of the subaru NA motors...or at least of years past
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