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Old 07-20-2005, 06:26 PM   #1
mybluesubi
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Default EJ22 turbo installation

I have an EJ22 in my car and I'm installing a turbo on it but have no clue where to get oil from the engine to the turbo and back.
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Old 07-21-2005, 01:13 AM   #2
ai42
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Well you need to get oil from an area in the engine where the oil is under higher pressure. The most logical place is to get fittings and tap off of the oil pressure sensor (and still keep the oil pressure sensor of course). Oil return you can either return it to the oil pan, or the valve cover.

Any decent speed shop should have the fittings nessecary (I think the fittings are the same needed for Hondas).
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Old 07-21-2005, 01:16 AM   #3
mybluesubi
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ok thanx. if I do plug into the top of the block where the oil pressure sending unit is will it actually pump oil through there constantly and will the sending unit read actual pressure in the system? now that I'm looking at it closer I also need a place to run the coolant tube to and from the turbo. (it's a VF10 from an 88 GL wagon). I have a lot more questions if you care to respond and help out. thanx
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Old 07-21-2005, 01:23 AM   #4
ai42
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I know there are quite a few of us who are running a tap off the oil pressure sensor with various fittings, myself included. It will give you consistant oil pressure to feed the turbo, and the only ill effect is that I've grounded out the oil pressure sensor a couple of times while tinkering (easy fix of course). And occasionally with I first turn over the engine after it is cold sometimes the oil pressure will throw a light on the dash for about 2-3 seconds.

I'm not sure how/where to tap from coolant. Honestly if you have a VF10, I would get a TD04 (stock WRX) I know for a fact that you can run the TD04 with oil only you just have to be a little careful and run the engine a bit after the turbo has been running hard or get a turbo timer. VF10 you might be able to do without coolant but I'm not really sure it is an older turbo of course so perhaps not.
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Old 07-21-2005, 01:28 AM   #5
mybluesubi
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lots of help thanx. I just paid 200 bux for the whole car actually and have no use for the rest of it. I'm not looking for goobs of power (just 50 extra hp or so). I know the VF10 will do this and besides, I don't wanna run too much boost cause I would like to keep this engine around a while. as you can tell I'm pretty new to the whole turbo thing and I don't wanna go into this blind and mess things all up being my car is a daily driver.
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Old 08-12-2005, 02:40 PM   #6
lotus2843
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good question on where to get coolant? Coolant temp sensor maybe??
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Old 08-12-2005, 03:44 PM   #7
Matt Monson
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Quote:
Originally Posted by lotus2843
good question on where to get coolant? Coolant temp sensor maybe??
I don't know about that, but it got me thinking. Many guys have done the coolant bypass mod on the TB. Why not take the coolant feed from the left side of the TB to feed the turbo, and the return, which is right next to the sensor on the crossover tube, as the return.

You would need to enlargen the hose size to meet the turbo, and reduce it back down to the return, but it could be done. Other guys have tapped the heater lines...
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Old 08-12-2005, 06:51 PM   #8
mybluesubi
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I really just wanna get the car set up with the turbo and have all the exhaust done then I'll switch to a bigger turbo once I get new injectors, reflashed ecu, fuel pump and fuel pressure regulator. Since I can't seem to find a good header I'm gonna keep the one I have and have a local exhaust guy make me an up pipe and downpipe, then straight pipe the rest of the exhaust.
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Old 08-12-2005, 07:34 PM   #9
lotus2843
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Quote:
Originally Posted by mybluesubi
have a local exhaust guy make me an up pipe and downpipe, then straight pipe the rest of the exhaust.
I can build anything you need... I have a hydrolic exhaust pipe bender, mig welder, 45 sticks of 10' exhaust pipe from 1.5 inch to 3 inch, and all the tools! pretty soon i plan to produce a "bolt on turbo kit" for the ej22 in an impreza, since im building a turbo kit for one myself i will just make a few copys.

Mike
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Old 08-12-2005, 07:40 PM   #10
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Coolent: Try splicing into the heater hoses. The AVO kit use the TB for it.
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Old 06-23-2007, 12:32 AM   #11
boyleia1
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hey Mybluesubi,
I was reading through this and just wanted to know if you had any success with the turbo on your car.. if so how much boost did/are you giving it and whats does it dyno at. I just picked up a 1997 OBS and i would like to put a ej22t in it next year but for now i would like to turbo the na ej22 just trying to collect some info on what it can handle. Thanks
~Ian
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Old 06-23-2007, 12:48 AM   #12
ballitch
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zombie thread........ya what ever happened to this car, sounded neat; buy car for $200, throw $2,000 at it and beat $20,000 car in drag race.


~Josh~
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Old 06-23-2007, 01:23 AM   #13
Harenil
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I got my coolant from the throttle body coolant lines. Simply bypass or tap into the lines and that gives enough for the turbo.
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Old 06-23-2007, 04:09 PM   #14
mybluesubi
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I have been slow on the go getting this turbo put in my car. I have a TD05, and all the necessary stuff to put it all together but I'm having issues with a few things. I have to make my own custom up-pipe cause there isn't one for the EJ22 exhust manifold. My biggest factor is she's my daily driver and that makes it hard to do extensive work on her. Also, I've been reading that it's not good to push over 8 lbs on an open deck block. There is a guy here in town that has an RS with the EJ25 phase I motor boosting 10 lbs and doesn't have any issues though. I've seen him at the track and that thing is freakin quick! Now that I'm not working I should have more time to work on the car. I just need to find someone with a welder and I can do the exhaust myself. I will keep posted when I start working on it. I have 316,500 miles on my heads and about 130k on the block so I'm a tad worried about that and how it'll hold up to boost. I guess if worst comes to worst I can just put the EJ25 phase I I have sitting in my garage in the car.
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Old 06-23-2007, 09:15 PM   #15
Harenil
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you could get a mig welder. Generally cost around $150 for a cheap one, sometimes even less.
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Old 06-27-2007, 02:51 PM   #16
gto7419
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Ok, the open deck motor is not as big a problem as you think - its your n/a ecu and the higher compression pistons that are going to be your main problem.....


You n/a ecu is not capable of supplying the proper amounts of fuel needed, nor is it capable of dialing in the right amount of retard that boost setups need.


The higher compression pistons are going to give you a big headache in the long run.... Pistons are the main reason why most people run VERY low boost on otherwise non-turbo models... On top of that, you are probably going to see some blowby because your piston rings are probably a little tired after 100k. The heads I wouldnt worry about too much....

Your main concern with the open deck block and high psi is probably the head gasket.... As long as you run an ej22t head gasket, you shouldnt have a problem with the cylinders walking.

If you only plan on running 8 psi - I would consider doing the headgaskets and getting some sort of piggyback to control fuel and timing.

If you plan on running more than 8 psi, you are going to need to decrease compression somehow.... DOHC heads or turbo pistons will do....


I actually just rebuilt an ej22 open deck with turbo pistons, dohc heads, sti injectors and a t3 with a tmic. Ran well until a few days ago - electrical issues suck....
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