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Old 12-08-2005, 02:44 PM   #1
bhall
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Default H6 swap questions

So I think I am about a year out from a swap so I am trying to get my ducks in a row on what I really want. I have always thought a WRX swap was the ticket but all of the wiring and such kinda turns me off. I never really gave the h6 any thought but in looking at it the motor seems to put down good numbers for an N/A motor.
I know they put this in an outback so I wonder if the wiring and such will be easier since it is basically the same car. I know it may be harder to source the H6 but if it makes the swap easier and smoother it may be worth it.

Also anyone know a rough difference in cost between the 2 swaps?
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Old 12-08-2005, 02:47 PM   #2
Charlie-III
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I have no idea.

Point to ponder though is.......no/limited parts available for the H6.
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Old 12-08-2005, 02:52 PM   #3
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you should ask PHATsuby, as he is doing an H6 swap (although he is turboing), but none the less, he would still the nuts and bolts answers for you.

Jared
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Old 12-08-2005, 03:28 PM   #4
PHATsuby
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what H6 are you referring to the EZ30 or EZ30R? The EZ30 is your only real swap option, as the R's immobilizer features make it impossible to do without a stand alone basically.

I can get the older H6 if you are interested with wiring and ecu, at least i used to be able to

I also had the complete wiring conversion laid out on paper for the EZ30, that would save you a lot of time, but its still a lot of wiring, probably the same as a ej20. The only way to avoid wiring is a stand alone ecu, which may not work if you have emissions or dont want to tune it and deal with possible tweaks that need to be made.

cost, depends on who is doing it if you are doing all labor, figure
EJ20-5k
EZ30-5k
EZ30R(with stand alone)-4k

without you doing the work add about 2k labor to each.

Ben
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Old 12-08-2005, 03:38 PM   #5
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I got an EJ20 from e-bay, 2,000 miles on the motor, for $3k. This was for complete wiring, turbo, intercooler, wrx fuel pump, etc.

I think the EJ20 from cost perspective is going to be the cheapest because there are more sources.
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Old 12-08-2005, 03:39 PM   #6
bhall
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So really there is no real savings in time or labor with either of them then. I just figured that since they are the same body and such that Subaru would have made as much interchangeable as possible to cut down on labor, I guess thats wrong.

If I do all of the labor my self then I have to figure in the cost of a beater to get me to and from while I am doing the swap. How much time can I expect the swap to take if I have all of the wiring laid out? I am pretty good as a shadetree mechanic but have never done any major wiring or anything close to a swap. I think I could put in 8-10 hours a week if I am lucky.


At this point it maybe more effective to just take the 5k down on a used LGT in a year or so. Although having a swapped BE would be kinda nice for the rarity factor.
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Old 12-08-2005, 05:00 PM   #7
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If you got the whole wiring harness from a h6-3.0 outback it mite just plug in, but I have no way to confirm this.
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Old 12-08-2005, 05:31 PM   #8
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I've actually looked into both....for H6 ez3.0....it uses the same plugs as the ej20 just a few extra wires.....a couple for ignition, a couple for injectors. The problem is all the 2.5 na which existed in all outbacks and legacies use a completely different plug. So wiring will be identical as far as work. So here's the big question? would you be happy with the hp rating for the 3.0 liter? only because there isn't much you can do to it. the ej20 has soooo many options. and if you decide to turbo the H6, then you're looking at a whole lot of money(pistons,rods,crank).

Phat suby where can you get the ez30r for 4k?

Ritch

P.S. I opted for the ej20, but now I'm looking at the ez30.
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Old 12-08-2005, 05:38 PM   #9
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Maybe you could pick someone's brain at Perrin to see what they did; They did an H6 for SEMA: http://www.supercars.net/cars/3278.html I know it's not into a legacy, but they might have some expirence to share anyway, esp regarding the ecu. <shrug>

Last edited by DroppedClutch; 12-08-2005 at 05:45 PM.
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Old 12-08-2005, 05:53 PM   #10
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Are there any BE/BH's with a swap? I haven't heard of any.
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Old 12-08-2005, 06:18 PM   #11
Hiroki Tada
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Theres a BH in the Toronto region with an ej20 swap and I would suggest against it. It just wasnt happening for that poor thing until boost hit at 3k. You need that 0.5L of displacement for torque.

Go H6, or USDM STi. Im planning on the latter.
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Old 12-08-2005, 06:30 PM   #12
PHATsuby
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dropped clutch-I worked on that project you can ask perrin but I basically know everything there is to know about the swap because I helped guide a few of the decisions and perrin made them happen or decided the same.

bhall-the EZ30 is not that bad, the engine plug just has an extra 16 pin plug like the one 16 that is already there, not sure about the ecu plugs being the same, I kind of doubt it, but maybe. AFBeefcake is right, if you get the harness everything else just plugs in under the dash since it is the same. I can double check that but IIRC it all plugs in. it is an auto though, if that matters.

kraziken-that is a very good deal if it included everything you needed like the cross member powersteering resevoir, transmission, rear diff, I am talking full drivetrain, maybe you are too.

BH5Ritch-they are actually much cheaper, that cost is with stand alone and misc, they are 1700 for a full engine, an absolute steal in my opinion.

flanders there is a guy with an fxt swap at least, NMlegacy i think.

Ben
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Old 12-08-2005, 06:37 PM   #13
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Quote:
Originally Posted by Hiroki Tada
Theres a BH in the Toronto region with an ej20 swap and I would suggest against it. It just wasnt happening for that poor thing until boost hit at 3k. You need that 0.5L of displacement for torque.

Go H6, or USDM STi. Im planning on the latter.
Uhh... no you don't. You simply need the right parts and the right tune.
There's a local member here with a killer 05 wrx wagon, it puts down great torque and great power.

Half a liter of displacement does NOT equal the difference between torque levels.
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Old 12-08-2005, 06:53 PM   #14
bhall
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I am not looking to mod the crap out of it or anything just want a bit more power than the 95hp I get to the ground. I am fearful of the ej20 as I hear it is a real dog when not on boost which I believe because I have a 2.5 and it is a dog all the time.

I think for all of the hassle involved it may be better to just get a LGT and mod that a bit. It sounds like this could get up to the 8-10k range fairly quickly after all is said and done. That will be close to half the cost of a used LGT in a year.

Decisions decisions
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Old 12-08-2005, 07:04 PM   #15
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Quote:
Originally Posted by bhall
I have a 2.5 and it is a dog all the time.
So true.
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Old 12-08-2005, 07:39 PM   #16
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Aw, c'mon, you can do like... 17 seconds in the quarter or something!
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Old 12-08-2005, 08:19 PM   #17
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Going downhill.
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Old 12-08-2005, 08:19 PM   #18
flanders
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With a tailwind...
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Old 12-08-2005, 08:26 PM   #19
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flanders....I have a jdm V8 sti in my BH..twin scroll and yes I would like the extra .5 liters for torque, but it's plenty quick.

Phatsuby.....could you please pm with the place for the ez30....I will buy one if I could find one for that cheap.

Thanks
Ritch
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Old 12-08-2005, 08:53 PM   #20
Hiroki Tada
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Quote:
Originally Posted by Huffer
Uhh... no you don't. You simply need the right parts and the right tune.
There's a local member here with a killer 05 wrx wagon, it puts down great torque and great power.

Half a liter of displacement does NOT equal the difference between torque levels.
You dont understand. BE's are about 300-400 lbs heavier than a WRX. BH's add another 100 or so pounds. Out of that boost range you do not get power. I didnt say his car was slow. I was saying that his car was agonizing without boost.
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Old 12-08-2005, 10:14 PM   #21
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Ritch, I'm gonna come down and check it out one day. Got any pics?

Ned
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Old 12-08-2005, 10:32 PM   #22
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I came in here looking for some questions on a rear brake swap. Man that was just a tad shy of the intent here.

ss
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Old 12-08-2005, 10:42 PM   #23
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I came in here looking for some questions on a rear brake swap. Man that was just a tad shy of the intent here.

ss
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Old 12-08-2005, 11:29 PM   #24
PHATsuby
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Ritch, it is gruppe-s, this is the EZ30R just so you know, better engine, more hassle to swap unless you use stand alone.

Ben
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Old 12-08-2005, 11:43 PM   #25
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Quote:
Originally Posted by bhall
I have a 2.5 and it is a dog all the time.
For real?

I have an EJ22 in my outback, and its got pretty good low end...great midrange...

I guess I don't need to be thrown back in my seat
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