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Old 11-02-2012, 04:10 PM   #1
darkscion
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Default Ej22t aem ems 4 ???

I've got a 94 legacy 2.2t and I'm wondering if the Aem ems4 would be a good choice for it? My tuner( cortney green) says he likes it a lot and has had good results with it. I'm just hoping to get people's personal impressions of this ems with a subaru. Any advice is welcome, goal for the is 300-350 whp and have it be daily drivable.
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Old 11-02-2012, 04:14 PM   #2
eg33GC
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EJ20K RS

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wire in a g ecu and get a rom from rob
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Old 11-13-2012, 10:31 PM   #3
phatboarder23
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Default I also have a 1994 Legacy turbo

Im wondering if you can use the pistons and rings from a ej22 n/a in the ej22t with the stock bore of 97mm?
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Old 11-14-2012, 11:10 PM   #4
darkscion
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Hmm not sure on that one, I know the ej22t is a non interference motor, but I'm not sure on the n/a version . It should be the same. The n/a pistons aren't as well built as the turbo ones, neither are forged but the turbo ones are a better choice. I would look for used turbo ones. Try legacycentral.org
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Old 11-14-2012, 11:13 PM   #5
darkscion
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Quote:
Originally Posted by eg33GC
wire in a g ecu and get a rom from rob
I've read a lot about that swap, and it's ok but I want more control. The ems 4 will let me change anything anytime.
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Old 11-14-2012, 11:44 PM   #6
eg33GC
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the vipec beats the **** out the aem in every way!
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Old 11-16-2012, 05:01 PM   #7
wrxr4ti
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Quote:
Originally Posted by darkscion View Post
Hmm not sure on that one, I know the ej22t is a non interference motor, but I'm not sure on the n/a version . It should be the same. The n/a pistons aren't as well built as the turbo ones, neither are forged but the turbo ones are a better choice. I would look for used turbo ones. Try legacycentral.org
I can say a ej22, in N/A, can be an interference engine, I think I still have the valves to prove it.
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Old 11-18-2012, 02:04 AM   #8
Ioku
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Quote:
Originally Posted by wrxr4ti View Post
I can say a ej22, in N/A, can be an interference engine, I think I still have the valves to prove it.
I think it depends on the year I think the phase I are noninterference but phase II is.
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Old 11-18-2012, 11:06 PM   #9
darkscion
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Vipec is 2k +. I'm looking for a SIMPLE setup. It's a daily driven family hauler lol, not a full out race car. The aem is perfect for that plan.
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Old 11-24-2012, 12:45 PM   #10
leavenworthlegacy
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Quote:
Originally Posted by phatboarder23 View Post
Im wondering if you can use the pistons and rings from a ej22 n/a in the ej22t with the stock bore of 97mm?
22t has a lot lower compression ratio then the N/A so i would not recomend using the same pistons as far as rings just have subaru look up the part numbers. here is what you need.
http://www.wiseco.com/Catalogs/Sport...baruToyota.pdf
and as far as the standalone imo robtune is the best for a DD as it retains coldstart and many other OE features. sandalones are for race cars. not trying to bash standalones.
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Old 12-11-2012, 02:03 AM   #11
blkgm8
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You could also look into an emanage ultimate. It is a piggyback and will retain all stock ecu safeguards and comforts like cold start and oem idle control, but it will give you direct control of the injectors and not just intercept and modify maf signal like some other piggybacks out there. It functions much more like a full standalone. It also controls timing and has ignition cut launch control and no lift shifting built in. They can be had for around 400 nowadays on ebay
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Old 12-15-2012, 11:02 AM   #12
darkscion
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I've been really reading up on all my options, and thinking about where I want this build to end up. My goal for hp is 250-260 at the wheels. The car also needs body/paint work. And I really want a very good auto-x track day suspension. Al that while being a DD. so the rob tune is looking good right now lol, especially after reading more about it .
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Old 12-17-2012, 10:16 PM   #13
blkgm8
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Quote:
Originally Posted by darkscion View Post
I've been really reading up on all my options, and thinking about where I want this build to end up. My goal for hp is 250-260 at the wheels. The car also needs body/paint work. And I really want a very good auto-x track day suspension. Al that while being a DD. so the rob tune is looking good right now lol, especially after reading more about it .
Excellent choice given your goals.
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Old 12-17-2012, 11:50 PM   #14
dscoobydoo
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Second the Rob tune. Since you are not planning on doing the tuning yourself, the AEMS is not a good choice. The Rob tune is kind of an easy quick way for the Early legacy turbos to get the power that the JDM cars had without the major issues of a piggyback or standalone. One of my cars has a PP6, the other a Rob tune with a 20G ECU. the Rob tune was cheaper, easier and puts out almost as much power. And it runs better.
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Old 12-18-2012, 12:53 AM   #15
SlowTrackImpreza
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I'm running my ver6 sti swap on the EMS 4, at first i hated it, then learned the little trick to getting the timing errors right...which made me even more mad when i found out how simple it was lol

I will say... I LOVE THE EMS-4....but no really, if i could i would sleep with it.

if you do really want to get an ems-4 i can toss you my map as a start up only map (*read...don't drive on it)

as far as control, you get everything, my favorite being 2 step launch control, and rally style anti lag for when you're at the strip (full boost between shifts) and traction control for the rain, and boost by gear.

for commuting it has another great feature, boost by TPS input, i don't know about you, but if i give my car 1/4 throttle to keep up with traffic speeding up some, i don't want my vf28 throwing 15psi out which it does easily. the AEM will let you program in that 1/4 throttle gives me whatever i want, in this case 8psi waste gate....plus it save gas on my 45mile drive in the morning.

for the sneaky part in you, i have mine setup for scramble boost. a little switch will turn the feature on. basically if you are in a race, and the car you are up against is faster than you initially thought you flip the switch and run however much more boost you desire.
i run 15psi normally and 19 when the switch is on.

as far as bang for buck, its great, i got my EMS-4 with the 96" flying lead harness, and managed to dump about 14 pounds of wires that the factory had in there. It cleaned it up alot to, got rid of the spaghetti bird nest of OEM harness, i have every single wire going through one hole in the firewall now.

another thing that is really good that it has over the piggybacks and mega squirt and emanage and such is a boost corrective fuel enrichment table. it doesn't really make it better that anything else when things are perfect working order, but when you do have something potentially catastrophic happen....like a vacuum line pop off a wastegate thus sending your boost to the moon. the ecu will automatically throw in more fuel for the psi that you are at until you hit your self specified boost cut. This also helps out with atmospheric changes like barometric pressure and humidity affecting the density of the air being ingested into the engine.

p.s. ALOT of people don't like it because they don't understand it, being brutally honest here, this is sooooo much more open ended than a cobb, or greddy, or utec or a little chip with a flash (hydra,vipec,motec,bosch being excluded). basically, you gotta know what the F*** you're doing...like REALLY know.

just my .02

Last edited by SlowTrackImpreza; 12-18-2012 at 01:05 AM.
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