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Old 06-08-2004, 10:48 PM   #1
damonmlime
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Default turbo an auto

i searched and couldn't find anything on turboing an auto, i just bought a 95l sedan thats an auto, and i thought about putting an ej22t that i also just bought into it. i haven't picked up the ecu for the ej22t yet and i dont know if it was an auto or standard, how hard would it be to turbo using stock ej22t ecu? would the auto tranny hold up w/ a transmission cooler? thanks. damon
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Old 06-08-2004, 11:45 PM   #2
Unsung Boxer
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i heard the Autotranny holds up to the Xhp better than a Manual, generally. In my opinion, this is because the Autotranny shifts softer, thus it wont allow you to grind gears.

At any rate, it is possible, many have done it. Although, im under the impression that just about all up/down pipes made for the GC body style will not clear the auto transmission.

This simply means, you will have to find that rare set that does work, or do a custom job. Other than that, your in the same boat as the rest of us as far as the Turbo-process goes.

-Jake
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Old 06-09-2004, 12:00 AM   #3
crk4
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I remember that dude Kevin Thomas had like a 13 second L sedan with an auto...do a search for what type of kit he had in his...look a while back. It might even be in his profile. Go for the turbo, especially if you have some money to dump into it. That tranny will hold up to as much power as you can give it within reason. The supercar like Easy Street WRX has an auto with a shifter on it. They just shift faster and can hold up to the abuse a lot better than the piece of crap manuals. Well now on the new Forester XT and Outback XT, etc. they have the reinforced gearbox so that would be nice.


Chris
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Old 06-09-2004, 12:02 AM   #4
jeffsnyder
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the only problem that u will find is that the pipes are close to the tranny. because its about 1 inch wider on both sides


Jeff
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Old 06-09-2004, 03:04 AM   #5
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Try to find a set of JCsport/PDMturbos up and down pipes and you'll be good to go.
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Old 06-09-2004, 09:07 AM   #6
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Joncas had a supercharged RS with an auto. a good cooler and some good tranny fluid and an auto will hold up better than a manual stock to stock. only diff is they're heavier and you'll have alittle less HP. - IC
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Old 06-09-2004, 04:54 PM   #7
damonmlime
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Default turbo auto

thanks everyone, the only thing that really bothers me is the body of the car and presumably the tranny has over 200k miles on it, i think when i put the new oil pump on it i'll drive it for a while and see how it does, then i'll change the tranny filter and add a bottle of lucas. that stuff works wonders. thanks damon.
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Old 06-09-2004, 08:30 PM   #8
Kevin Thomas
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Default Re: turbo an auto

Quote:
Originally posted by damonmlime
i searched and couldn't find anything on turboing an auto, i just bought a 95l sedan thats an auto, and i thought about putting an ej22t that i also just bought into it. i haven't picked up the ecu for the ej22t yet and i dont know if it was an auto or standard, how hard would it be to turbo using stock ej22t ecu? would the auto tranny hold up w/ a transmission cooler? thanks. damon
Hi Damon,

Things to get:

1: Tranny cooler,

2: Valve Body (Hydrosystem) modified to make your auto shift faster/firmer.

The faster/firmer it shifts the better. You do not want a soft shifting tranny. The softness is because there is a delay in your clutchpacks clamping before going into the next gear. This creates a lot of heat and wear on the tranny. Quick shifting eliminates this. Also, an added bonus is that you can enjoy up to 40-50% (or is it just 40-50hp/torque more?) more hp/torque in between shifts with a valve body. I have dyno graphs that prove this even when my OBS is only putting down 92hp or so to the wheels (N/A).

Also, if you want even more performance, go for a modified torque converter upgrade.

A tranny cooler helped my car but after playing with nitrous over and over again, my 2-3rd gear went. This is what will probably go first on your car. It was because of the shoft shifts of the clutchpacks. After getting the tranny rebuilt along with the Level 10 hydrosystem (valve body modified), that never was a problem again. I didn't make tons of hp/torque but I can honestly say hitting the nitrous off the line should've torn something. The car runs great to this day. I just drove it to work tonight.

I'm sure there are many guys here that might better represent the limits of this an auto but I don't any of us regular Joes have reached it (with a tranny cooler, valve body, torque converter). I think you'll have to worry about your driveshafts and other parts from this point. At least this was the case with RiftsWRX.

Oh yeah! I forgot to mention. Just like what was said above, you'll probably have a problem with the wastegate coming in contact with your transmission. I know I have with the Minnam turbokit and recently with a Ludespeed Stage II on my OBS. It's something that's not talked about. The shop that installed the Ludespeed on my OBS removed a gasket that mated the turbo to the downpipe. I didn't know this until I uninstalled the turbokit. So you can guess that the wastegate was within a mm or two from contacting the tranny. Not good! There was (is) a fix out there but I can't remember. Someone'll pitch in perhaps.
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Old 06-09-2004, 09:46 PM   #9
damonmlime
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Default turbo auto

thanks kevin, thats very helpful where did you get the hydrosystem from? I'm not really trying to build a 300whp beast, i just want to see what i can get out of the ej22t that i have,but i want to keep it fairly stock if thats possible. thanks damon
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Old 06-10-2004, 12:38 AM   #10
2RS's4US
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I have an 01 with an AVO turbo kit and a 4EAT (Protorque TC, LevelTen Hydrosystem and tranny cooler.) So it can be done

Last edited by 2RS's4US; 06-10-2004 at 09:36 AM.
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Old 06-10-2004, 03:57 AM   #11
Kevin Thomas
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Default Re: turbo auto

Quote:
Originally posted by damonmlime
thanks kevin, thats very helpful where did you get the hydrosystem from?
http://www.levelten.com/hydrosystem_import.htm

It works great BUT I had mine installed at Level 10 performance. It was crazy expensive......just over $1200 after their 8hr labor on it.

Either have a tranny shop do a 'valve body' job performed (if they can do it...you have to talk to them) or have them remove your valve body so you can send it to Level 10. It was expensive back when I got it done. I don't think it has gotten any cheaper. A valve body modification on my XT6 was done at a local shop for around $350, labor and all. 2-3rd gear isn't what it should be but 1-2 and 3-4 on the XT6 acts the same as the same as the hydrosystem.

I'm hooked on the feel of a modified valve body and can't imagine driving any automatics without it. It's not for everyone as it can be too 'harsh or firm' for some. Just ask 2RS's4US for his opinion.
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Old 06-10-2004, 07:21 PM   #12
damonmlime
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Default turbo auto

wow, thats very expensive, i think it would be cheaper just to make it a 5spd. thanks. damon
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Old 06-10-2004, 08:24 PM   #13
subiekid
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I have an ej22T in my 95 legacy, with an auto, but I am running a tec 3. You have plenty of room for the down pipe near the trany. FOr the ecu go over to legacycentral.org its a site that is all about the older legacys, mostly all ej22T guys. You might have to use both ecu's if you cant get an ej22T auto ecu. And I think the tranys had different voltages on them.
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Old 06-10-2004, 08:29 PM   #14
subiekid
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Here is a picture of my ej22T, its kinda hard to see, but there is plenty of room even with the auto.


http://myweb.cableone.net/subiekid/IM000973.jpg

i can take more pictures if you want.
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Old 06-10-2004, 09:30 PM   #15
Kevin Thomas
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Quote:
Originally posted by subiekid
Here is a picture of my ej22T, its kinda hard to see, but there is plenty of room even with the auto.


http://myweb.cableone.net/subiekid/IM000973.jpg

i can take more pictures if you want.
That does look like a lot of space. Here is an example of what I was talking about.

Autotranny and Wastegate thread

Autotranny and Wastegate thread #2

Here's how close my wastegate was to my tranny. So close that the wastegate/turbo gasket had to be removed to make it fit. The piping you see the wastegate close to for some reason seemed alright. The wastegate moved the other direction towards the tranny. Hard to explain.

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Old 06-10-2004, 10:06 PM   #16
damonmlime
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subiekid, do you have any kind of tranny upgrade? are you running the ej22t stock in your legacy? thanks for the pics. damon
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Old 06-11-2004, 01:05 AM   #17
subiekid
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Its a stock ej22T out of my old 92 Turbo that got hit by a stupid driver. It has not been running that well because I tried to do a conversions harness that would plug the 92 turbo ecu into the harness of the 95. I am working on getting the tec 3 to work. I have no trany upgrade. I drove the car for about 3k miles with the swap and the trany did fine. Once i get into the 230+- whp I am gona start upgrading the trany. There might be some good info on http://www.rigoliracing.com.au/ they have the worlds fastest wrx and it uses a 4eat.

Another thing that is kinda strang. The older legacy turbo had problems with the auto tranys, mine was loosing reverse after 120k miles. So maybe the new tranys are a bit differnet. I am running my 95 trany not my 92.
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