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Old 02-11-2009, 06:32 AM   #1
jzk25
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Default EZ30R NA into 97 Legacy. A lot of pics.

Hi from Australia. Just finished another EZ30 conversion, this time and EZ30R with aftermarket ECU.

The engine is a test unit from an 05 Legacy, it'd been in stock for quite a while as there were no ecus that could run them until recently.



I replaced the E-throttle with a ford unit from a common local car. It has a simple 2 wire IAC valve and TPS and best of all, it bolted straight on to the EZ manifold. Had to make an anchor bracket for it and budget wouldn't allow the cruise control to be re-used unfortunately.



I purchased a chinese GDB alloy radiator and modified it to suit the EZ top tanks. They are very cheap and the quality is equal to any local product at twice the price.





The engine went in on std mounts and was mated to a 2000 EJ25 gearbox with a HD exedy clutch. Fitment is pretty straightforward.





The returnless fuel rails were modified for returns. This was as simple as cutting the cap off the end of the rail and tapping it for 1/4 BSP thread. A barbed fitting then screws in and a parallel rail setup with an adjustable reg was used. Easy.



Next up was some headers. I started with a box full of mandrel bends and collectors.



Continued due to excess pics...
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Last edited by jzk25; 02-13-2009 at 09:37 PM.
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Old 02-11-2009, 06:32 AM   #2
jzk25
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And ended up with these.















I couldn't get a straight answer on primary lengths because of the variable lift and timing on the cams so I ended up googling up a header calculator and compromising between what it should be and what fitted the car.



Next up was the ecu. I chose a Vipec V88(rebadged Link G4 extreem) as it was proven to run the EZ30R AVCS engine(thanks AnotherwhiteGTB).







It took a full day to do the initial wire up that would allow us to start the engine.











Powered up the ecu that afternoon and configured it with some help from the dealer(30 minutes work) and it fired up second try with nothing more than a change of the master fuel figure. Very happy.



I then spent a couple more days conduiting and securing the wiring and sorting out things like aircon and fan control. Also did some simple mapping to get the car drivable, it drives very well for the little amount of effort. The idle control strategy works as well as factory.



For cooling we used a pair of slimline thermo fans blowing through the condensor and radiator.







Added a stainless steel intake with an in guard mounted filter and it's ready for the dyno.







All this work took 6 days start to finish. Very happy with the Vipec and highly recommend it for this engine(or the Link, whichever is supported in your area). It's as simple as dropping down a box and selecting [EZ30R AVCS] from the trigger menu.



Thanks for looking, Al.

Last edited by jzk25; 02-13-2009 at 09:39 PM.
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Old 02-11-2009, 09:00 AM   #3
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post video of it on the dyno Nice Job.
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Old 02-11-2009, 11:27 AM   #4
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Yeah, this is hot. Makes me want to toss my STI motor and do one. Maybe a 3.6 liter tribeca motor.
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Old 02-11-2009, 01:25 PM   #5
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those headers look great , keep up the good work.
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Old 02-12-2009, 07:25 AM   #6
Seraphinwolf
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Nice work. Most States side builds are either Big name builds or us little guys scrounging for the parts we need and the money to pay for them. Subscribing for dyno charts.
-Gaddis
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Old 02-12-2009, 10:59 PM   #7
Patrick Olsen
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Very nice. One of these days when I'm not working all the time and not at sea all the time and finished playing with the EJ25 currently in the car I'll actually get around to installing the EZ30R I've got.

Definitely looking forward to some dyno data and/or video. Keep us posted!

Pat Olsen
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Old 02-13-2009, 12:02 AM   #8
semaj
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Great swap! Video please!
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Old 02-13-2009, 04:00 AM   #9
jzk25
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Quote:
Originally Posted by Seraphinwolf View Post
Nice work. Most States side builds are either Big name builds or us little guys scrounging for the parts we need and the money to pay for them. Subscribing for dyno charts.
-Gaddis
Thanks for the comments.
I operate a workshop(in partnership) that specialises in subaru engine conversions. It's a niche market in Australia and we are always trying to stay ahead by doing this sort of thing first over here(succesfully, not just start it and give up ).

I have an EZ30D powered 97 wagon as a work hack and we also did all the fab and most of the mechanical work on the first EZ30 turbo in Aus.

Here's those two cars for interest sake.

GT4088R EZ30R 97 RX Liberty.







My work hack, EZ30D with wired in factory management and V3 STi gearbox and diff.








I am a big fan of the EZ30 and do my best to encourage people on that direction. The availability of the Link/Vipec ecu will definitely make it easier to sell the EZ30R as a conversion.
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Old 02-13-2009, 02:11 PM   #10
Seraphinwolf
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Nice throtle body spacing. Bet it makes for a smooth air stream into the manifold and down the runners? I'm also sure the fact that Link is so much closer to you than us helps. I think I'll go witht he Hydra for mine for simular reasons. Nice work again still. Lets definately see some dyno plots!
-Gaddis
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Old 02-13-2009, 10:31 PM   #11
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Why do you COVER UP the intake ports!! I want to see them!!!!!
and yes... video!!! PLZ! My buddy has an SVX swapped Impreza GC. very torqy
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Old 02-18-2009, 04:30 AM   #12
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Car made 140kw atw on a dyno dynamics dyno. Will post up sheet when I can get my hands on it. It sounds very un subaru like, has awesome throttle response and the variable lift comes in pretty hard. It has spawned many vtac jokes.
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Old 02-18-2009, 06:36 AM   #13
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Old 02-18-2009, 08:27 PM   #14
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Awesome business name!
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Old 02-18-2009, 11:03 PM   #15
jzk25
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They are GTR specialists. He has a low 9 sec R32.

Vids. Not good quality.

dyno:
http://www.youtube.com/watch?v=T4fFd6NBEBg

0-110:
http://www.youtube.com/watch?v=G6JJlc4UrkM

tunnel:
http://www.youtube.com/watch?v=bisU40m5Bm4
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Old 02-19-2009, 12:02 AM   #16
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that exhaust sounds amazing
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Old 02-19-2009, 01:03 AM   #17
Patrick Olsen
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140kW is about 190whp. Not too shabby at all!

And yeah, that thing sounds awesome!

Last edited by Patrick Olsen; 02-19-2009 at 01:11 AM.
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Old 02-19-2009, 08:09 AM   #18
Seraphinwolf
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I was hoping to see 200WHP come out of there but still nice.
-Gaddis
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Old 02-19-2009, 04:13 PM   #19
jzk25
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The tuner is very conservative with timing on road cars, I think there will be more in it. I recommended he take it to a modern NA specialist in Sydney for a tune as they should be able to get more out of it(the owner lives in sydney and we are 1200km away on the north coast of Brisbane).

No one knows anything about the engine(not surprisingly) so it needs a bit more time on the dyno yet. I'd like to compare total ignition timing with a factory tune as I think there will be quite a big difference.

How do dyno dynamics numbers compare to what you guys refer to as whp? I hear there are a few different types of dyno with varying readings in the US, makes it hard to compare.
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Old 02-20-2009, 02:05 AM   #20
Patrick Olsen
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WHP is just "wheel horsepower", and that term is used regardless of the dyno type. There are multiple types of AWD dynos here in the States - Dynojets, Dyno Dynamics, Mustang, Land & Sea, and Dynapak I think are all the ones I know of. They all spit out different numbers, in some cases quite a bit different (my Dyno Dynamics runs were ~85% what the car put down on a Dynojet). You just need to understand the difference, and that comparing different dyno types is not much more than speculation.

Pat
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Old 03-19-2009, 02:34 AM   #21
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HELLO AMERICA!!!

My name's Tristan, and the EZ30r in question is my car...

it's been retuned for low emissions and is fitted with a quieter exhaust so that it can pass registration. The tuner has told me that he can get it past 150kw atw with a different exhaust (i have a freer flowing one sitting at home currently) and a more agressive tune.

the "VTAK" no longer kicks as hard as it did before... it's a very linear power curve now and it pulls so hard past 4500rpm...

here is the latest dyno chart:

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Old 05-11-2010, 10:34 PM   #22
Patrick Olsen
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Pulled this thread up again to look at something related to EZ30R swaps and decided to fiddle with the dyno graph a bit. Here's a compilation of dyno runs, all from Dyno Dynamics dynos. Not the same Dyno Dynamics dyno, of course, and spread over years and years, so not the best comparison, but still fun to look at.



The SOHC and DOHC EJ25 curves are same day runs by my essentially stock EJ25D and an essentially stock SOHC (EJ251? 253? I never can remember) 2000 or 2001 2.5RS at a dyno day yeeeaaars ago. The "built EJ25D" curves are a few years later from my same engine, but enhanced with Cobb heads & cams, Injen CAI, OBX header, Stromung exhaust, hiflow cat, and S-AFC fuel adjustments. And last but not least is Blaeven's data, which I just eyeballed off the dyno graph he posted here and put into Excel (converting the units along the way).

The EZ30R puts down +40ftlb to the wheels across pretty much the entire RPM band. That's pretty awesome if you ask me!

Pat Olsen
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Old 06-15-2011, 11:04 PM   #23
endless8979
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hey JZK25 where did you buy those radiator tubes.
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Old 09-05-2011, 10:53 PM   #24
jjelsma
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What Ford throttle body did you use?
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Old 09-05-2011, 11:00 PM   #25
Patrick Olsen
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I PM'd him about it at one point a while back. It's from an Aussie 4.0L 6cyl Ford Falcon.
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