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Old 10-02-2007, 04:07 PM   #1
anotherwhitegtb
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Default My EZ30R H6 Mission - Its Alive!!

Hey, Im in NZ and I have a Legacy GTB which i decided wasnt upto scratch, plus its CRAP twin turbo motor had yet another issue with me. It thought it would eat two pistons, spray oil on the turbos and catch on fire, im glad i live just round the corner from the fire brigade

After deciding that rebuilding a twin turbo wasnt goin to cut it i went and got an EZ30R with ACVS and thought that would be a more reliable swap. Plus everyone seems to be doing it these days so i thought id jump on the band wagon.

Basically its almost done now with the help of a few awsome guys i have meet in the last few weeks. (James @ Speed Tech in Hamilton, and David @Dtech Motorsport)


This is kind of inteneded on a rough guide for anyone wanting to do the same conversion as well as me ranting about mine. This is how it goes anyway...

ECU
First issue with the EZ30R was what computer am i going to use to run it, running a factory seemed like suicide after reading about all of the issues everyone else is having, so i had a prod around at aftermarket ECU's.

Because I am from NZ and so are Link, I had my heart set on using a Link G3, even though they couldnt quite run the R spec yet because of the trigger pattern. It turned out that was the only thing holding them up, and all they needed was a complete motor to get it finished. I had one and they were less than 2 hours away, so they used my motor to figure it out and are using my car to figure out their base tune on the dyno before it gets released onto the market.
So for all of you guys wanting an ECU for your EZ30R, give Link a week or two and it will be released to public that the Link + G3 runs the bad boy.


Mechanical Side
Swapping the motor was easier than putting my TT motor back in as far as dropping it into the hole and sorting out how it would hook up to the gearbox.

By avoiding a step by step process on how to put a motor in, the only things that werent a straight bolt up was the following

1) Radiator, I couldnt use the TT radiator because it was entirly different and i was going to need a H6 radiator, I found one at a nice price from a subaru specialist wreckers and used that. But this spawned my next issue

2) Thin radiator fans, the standard H6 fans are quite deep and they wernt going to fit in my tight little engine bay in a million years, so what you need to do is search your soul off through a radiator catalogue until you can find one that is about 60mm thick that has either a 12" or 11" fan

3)Throttle body, the standard throttle bodies on the EZ30R's are fly-by-wire, or in idiots terms, controlled by a solenoid and an electrical input. Because of some liability issues i had explained to me the Link G3 cant use the standard throttle body, so i had to find a mechanical one with an Idle Control Solenoid on it, so i went found one from a Ford AU XR6 Falcon (an Australian made ford that is in GREAT abundance in NZ and Aus) as it was big and cheap. I got the holes slotted and the face that bolts onto the manifold shimmed, then it went straight on.

Everything else that needed thought about was just normal swapping issues, the power steering pump ran the same pressures as my cars current power steering so i had that pipe welded up and mount a reserviour off my chassis
I needed to get the A/C lines off the A/C pump TIG welded up to my cars original A/C lines.
Exhaust needed to me made up, the standard EZ30 manifolds didnt fit around the front crossmember so i had new manifolds made up with it.
Needed heater pipes off a WRX as the inlet outlet for the EZ30 was different to my EJ20R

Here are the only half decent pics i managed to get with my phone before is sent it in for the wiring loom to get put in, I thought id avoid that part as I regard wiring looms as the devil and they are too easy to stuff up.

When i get i back hopefully in less than a week from now il post up the dyno sheet and decent photos of everything finished, I have tried my hardest to make everything look factory, not a complete weekend cable tie and duct tape misson

Clint

My engine bay after i dropped it in. Its far from where it is now. I was just so happy to see it in there


My Exhaust
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Last edited by anotherwhitegtb; 10-28-2007 at 06:42 AM. Reason: Changed details
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Old 10-02-2007, 05:54 PM   #2
neko
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right on! now that's how you do headers

bet that sounds nice...
i still have my heart kinda set on having a 3.0L GC-wagon someday. Too bad i just spent more funds on a v5 sti...
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Old 10-02-2007, 07:41 PM   #3
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Quote:
Originally Posted by neko View Post
right on! now that's how you do headers

bet that sounds nice...
i still have my heart kinda set on having a 3.0L GC-wagon someday. Too bad i just spent more funds on a v5 sti...
Impreza Wagon 93-01 = GF, not GC. I would love a swapped GF myself....someday.

To the OP: Awesome progress on your swap! Get some pusher fans for the radiator. If you're still looking for a cable for your throttle body, try an STi ver5 throttle cable. I look forward to seeing your car running (mine, too).

Mick
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Old 10-02-2007, 07:47 PM   #4
anotherwhitegtb
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Cheers guys

For the fans i spent my afternoon avoiding work searching through a catalogue until i found some, they cost me a fair bit but the motors are fully reccessed into the fan, they are only 51mm thick at that biggest part. I had to keep to using puller type fans as my A/C would have turned into an expensive nightmare otherwise trying to fit pusher fans in.
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Old 10-02-2007, 07:48 PM   #5
anotherwhitegtb
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Originally Posted by neko View Post
right on! now that's how you do headers

bet that sounds nice...
i still have my heart kinda set on having a 3.0L GC-wagon someday. Too bad i just spent more funds on a v5 sti...
I bet it will sound nice, I cant wait till they finish the wiring loom and turn that bad boy on... iv been hypo for the last few days thinking about hearing it...
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Old 10-03-2007, 02:12 AM   #6
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that exhaust makes me horny......actually......the whole thing does. especially the concept that the Link G3 will be able to run the EZ30DR. my dream is getting just a bit closer to reality
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Old 10-05-2007, 05:51 AM   #7
anotherwhitegtb
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Okay, for all of you that are dreaming of using a link for the EZ30R, link is releasing the trigger on tuesday next week (9th Oct) as long as their simulation goes to plan and their are no bugs. There is a certain way they want everything wired up though to avoid issues but im not really finding to much out about this, link will be able to give you this if you intend on using a Link G3 for your EZ30R.

As for my wagon, the plan is to be driving it off the dyno in 7 days time, and everything should be finished and look as factory as a brought one. Ill post the pictures up when its finished
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Old 10-28-2007, 05:58 AM   #8
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Drum roll please, I now have my car running with ACVS running a closed loop with the Link + G3 and the final product looks alittle bit like this!!

Engine Bay Shot


Throttle body and Pod filter, i have almost finished making a very tidy alloy cold air box to go around this, it will look the business when its done!!


My Radiator clearence, The Overflow (Coke Bottle) tank should be here tomorrow morning, its a very nice looking alloy one to look nice a porno under there with the cold air box when that is done!!


And finally a video of my hunny going


Huge thanks and a bow for Dave Herdegeen @ Dtech Motorsport for making it work with the link!!
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Old 10-28-2007, 12:14 PM   #9
legacy2003
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Wow that thing sounds incredible!
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Old 10-28-2007, 01:36 PM   #10
Patrick Olsen
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That is truly stellar news that Link has the G3 setup for the EZ30R now. If I understand correctly, they not only got the trigger pattern all figured out, but ran your engine on a dyno stand to get an initial tune?

The car does sound fabulous!

Pat Olsen
EZ30R sitting in garage for last year waiting for engine management to get figured out...
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Old 10-28-2007, 01:37 PM   #11
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Very intrested in the Link info. Is link offering the ems for the 30R now. This changes alot of things now.

Josh
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Old 10-28-2007, 02:27 PM   #12
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I'm glad to see people making progress on their swaps. My motor is on its way here from Gruppe-S, I was going to swap it into my STI, but I decided that it would be better ot swap in into my 1995 L and get it running first then do the swap in the STI.

Matt
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Old 10-28-2007, 02:34 PM   #13
anotherwhitegtb
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Quote:
Originally Posted by Whiteghost 2.5 View Post
Very intrested in the Link info. Is link offering the ems for the 30R now. This changes alot of things now.

Josh
Yeah, you got it, the LinkPlus G3 works on the EZ30R, the one with variable valve lift and timing. And as far as I am aware after spending way too long trying to find something for my car, The LinkPlus G3 is the first ECU in the world to run a closed loop on a EZ30R.
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Old 10-28-2007, 02:42 PM   #14
anotherwhitegtb
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Quote:
Originally Posted by Patrick Olsen View Post
That is truly stellar news that Link has the G3 setup for the EZ30R now. If I understand correctly, they not only got the trigger pattern all figured out, but ran your engine on a dyno stand to get an initial tune?

The car does sound fabulous!

Pat Olsen
EZ30R sitting in garage for last year waiting for engine management to get figured out...
What they did was simulated that it was going to work on the computer using my motor, the standard tune is coming from a combination of a road tune and a dyno tune with the motor in my car.
Im still waiting for a final dyno to tune my car to its fullest, but we have to do a base tune again when i get the shorter headers made up so that it is a bit more standardised for everyone else, (plus the reasoning behind doing this is another story in itself!!)
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Old 10-28-2007, 07:21 PM   #15
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OMG the car sounds great!

MORE VIDEOS ASAP!!!
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Old 10-28-2007, 08:16 PM   #16
adhowe70
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Quote:
Originally Posted by anotherwhitegtb View Post
Yeah, you got it, the LinkPlus G3 works on the EZ30R, the one with variable valve lift and timing. And as far as I am aware after spending way too long trying to find something for my car, The LinkPlus G3 is the first ECU in the world to run a closed loop on a EZ30R.
This is my understanding as well, at least as far as AVCS control is concerned.

Can you PM me the details of who to talk to about this? I'd like to investigate this as an alternative to the Hydra I'm currently running.

Thanks!

Andy

Edit: And I'd love to see a dyno chart for the engine with functional AVCS...

Last edited by adhowe70; 10-28-2007 at 08:21 PM.
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Old 10-28-2007, 08:34 PM   #17
anotherwhitegtb
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Originally Posted by adhowe70 View Post
This is my understanding as well, at least as far as AVCS control is concerned.

Can you PM me the details of who to talk to about this? I'd like to investigate this as an alternative to the Hydra I'm currently running.

Thanks!

Andy

Edit: And I'd love to see a dyno chart for the engine with functional AVCS...
Il have the dyno done in a little while, im playing around with the exhaust headers at the moment and i think we might make a few more to see how it goes, then it will go on the dyno after its all how i want it. I would rather do it properly one time than have it tuned and find out i need to do more.



Quote:
Originally Posted by Kostamojen View Post
OMG the car sounds great!

MORE VIDEOS ASAP!!!
Il get some more videos up when i have a bit more free time in the next couple of days, which this space
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Old 10-28-2007, 10:20 PM   #18
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Quote:
Originally Posted by anotherwhitegtb View Post
...but we have to do a base tune again when i get the shorter headers made up ... (plus the reasoning behind doing this is another story in itself!!)
Hmmmm, why could you possibly want shorter headers? Maybe some turbos in your future?

Speaking of headers, if you've got any pics of the underside of the car up on a lift I'd love to see the headers you've got now.

Last edited by Patrick Olsen; 10-29-2007 at 07:53 AM.
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Old 10-29-2007, 12:23 PM   #19
likeawd
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can you get this to work with an auto trans?how about turbos?
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Old 10-29-2007, 02:14 PM   #20
Slack
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I watched your video about ten times this morning. Needless to say, I am very eager to get my car done. The sound of a flat six is beautiful.
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Old 10-29-2007, 07:14 PM   #21
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Quote:
Originally Posted by Slack View Post
I watched your video about ten times this morning. Needless to say, I am very eager to get my car done. The sound of a flat six is beautiful.


I was wondering if you would watch that vid...
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Old 10-30-2007, 06:12 AM   #22
anotherwhitegtb
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Originally Posted by likeawd View Post
can you get this to work with an auto trans?how about turbos?
You can get this to work with an auto, but I wouldnt really class it as an ideal way going about it.
If you want to turbo it you might aswell get a 6 speed STI box so your driveline doesnt end up own3d. If you do that then you need to do everthing else aswell (hubs, rear diff, brembo brakes etc). If you are keen on turbo charging it though, the best turbo in my opion is to use a GT35/40R and run it on about 8psi, you should be able to make 300kw@wheels (402bhp).

Quote:
Originally Posted by Patrick Olsen View Post
Hmmmm, why could you possibly want shorter headers? Maybe some turbos in your future?

Speaking of headers, if you've got any pics of the underside of the car up on a lift I'd love to see the headers you've got now.
I cant remeber if i posted why i want shorter headers, but its because these motors are really sensitive to the primary length as a shorter length produces more horsepower (rather than torque which is a longer length). Because the EZ30R is a nice and torque inclined motor without any encouragment from the exhaust, im doing everthing I can to get power out of it as possible before a dyno.

If your bank account allows for it and you want something that has been made with a fully tuned length etc (plus they are stainless), these headers here are the business, I would LOVE a pair so much, they are sicker than a hospital ward in a 3rd world county

Il try and get some more photos too, im not really proud of them, I could have done much better but i was in a rush and they werent intended for been on there forever, but they do sound nice, thats for sure.

Last edited by anotherwhitegtb; 10-30-2007 at 06:14 AM. Reason: tidy it up a bit
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Old 10-30-2007, 06:21 AM   #23
anotherwhitegtb
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Or yea, last time i checked those headers were US$2500 (NZ$3500) and that aint including getting them in!
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Old 10-30-2007, 07:52 AM   #24
Slack
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Kosta- why were you wondering? I've heard my car run over the phone, but that hardly did it justice.

Awgtb- I saw those headers a while back. They are made for Legacy, so they would take custom work to fit an Impreza. They are just way too expensive, IMO.

We need someone stateside, like Tech Works Eng., to make a set of great headers.

I used a calculator to determine the primaries' length. Mine turned out very ugly, but they were just meant to get the car on the road. I will either get another, better custom set fabbed up or try to work with TWE to get some made.

Btw- Thanks for keeping me motivated to finish my project.


Mick

Last edited by Slack; 01-03-2008 at 11:44 AM.
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Old 10-30-2007, 10:47 AM   #25
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Quote:
Originally Posted by Slack View Post
Kosta- why were you wondering? I've heard my car run over the phone, but that hardly did it justice.
I just saw the vid and was like "Damn, slack will watch this umpteen times" and you did
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