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Old 07-01-2002, 09:49 PM   #1
DJIMPREZA
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Member#: 1199
Join Date: Apr 2000
Location: Caracas, Venezuela
Vehicle:
1994 Supra+1K, 22b
alike, 07STI

Default Vishnu Oil return line

Hi Guys (hey Shiv) I was thinking about the oil braided steel line draining oil from turbo to oil pan, mine, came with one 45 deg elbow and one 90 degree elbow conector, I know Itīs a gravity system, and I think it will not be a good idea to place the 90 deg one at the turbo, but, only the 45 deg one will pass trough engine mount and exhaust manifold, is a very tight passing, the braided hose, even touches the e. manifold...

I think I should swicht the 90 deg one with another 45 deg, what do you think? and wich options do I have to pass that 10 an big line to the oil pan bung without touching the exhaust manifold? maybe its ok? should I use some extra thermotec stuff to prevent burning it?

Ideas??? and the line is a little big larger than optimal from my point of view since it is not straight, it bends a little bit

And for those guys running the pre welded oil pan, with the oem subaru oil heat cooler, the bung is to close one hose, is tight but possible!

Also one of my tial wastegate silicone hose barb was touching the front axle doj (the green in join) I dissamble it and turn it a little bit, and that`s it!

Now
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Old 07-02-2002, 01:34 AM   #2
DJIMPREZA
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Member#: 1199
Join Date: Apr 2000
Location: Caracas, Venezuela
Vehicle:
1994 Supra+1K, 22b
alike, 07STI

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Please help? Shiv, anyone???

Thanks
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Old 07-02-2002, 09:38 AM   #3
Boostup!
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Chapter/Region: MWSOC
Location: Michigan
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SOHC RS-Turbo EJ257
Tec-2 Aquamist 2D

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DJ, I have the 90 deg at the turbo and the 45 deg at the oil pan. I think it's working alright, so far no smoke out the tail pipe and no major oil leaks, just dampness around the two joints. I don't know what's up with those joints. I have tighten and re-tighten those joints 10 million times. Everytime I look at them, I would wipe them off clean, next time they are wet again, not dripping wet though so I'm not that worried. If you have the time, you should replace the 90 deg with a 45 deg, it should help a little.

Regarding the return line touching the exhaust manifold, I'm a little worried about that too. I have expressed my concern to Shiv. He says it is not a problem, and he could be right, at least in the short run. Mine is doing fine so far. I have thought of replacing the short section (where it is touching) with a short lenght of steel tubing. That should prevent anything from melting or hardening over time and cracking.

Good Luck,
TT
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Old 07-02-2002, 10:14 AM   #4
jeff22
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99 impreza rs-t
rally blue pearl

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Boostup/ DJimpreza I've had that concern when i installed my kit, What i did with the factory header/manifold was rip all the metal heat shield off the piping. then wrap header wrap around the pipe. I did it to keep all heat in the exhaust, To try to speed up spool up time. It didn't help spool up time but did cool the outside of the pipe quite a bit! I can touch the wrap on the header pipe after a good driven. also extending oil return hose life! It also gave my more constant EGT, key for longer running engine life. (not like engine life matters now, I killed 3 out of 4 pistions in my engine) THAT SUCKS!!! 2 pistons you can see about 2inches of the top ring, where the bpiston is suppose to be! recommend don't put 87octane in your car at all! even if you are going to run out of gas!!! Ten min later Knock Knock boom! not even in boost! I'll have pics for it on line hopefully next week!
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Old 07-02-2002, 01:44 PM   #5
david2z4
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2000 Impreza RS BRP
Vishnu Turbo/Tec3

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I have had no problems with the 90 deg. fitting at the turbo.

As long as it has downward angle all the rest of the way into the pan. No vapor locks and the oil will drain just fine. If it pools anywhere along the route after the 90 deg. You will have problems.
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Old 07-02-2002, 09:25 PM   #6
DJIMPREZA
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Member#: 1199
Join Date: Apr 2000
Location: Caracas, Venezuela
Vehicle:
1994 Supra+1K, 22b
alike, 07STI

Default

I also removed all aluminum shields and used the thermotec stuff, but tt idea is just great! replacing that zone with a metal tube and fit some extra heat reflection tape there wiill be fine, I think the 45 angle will work better, and even, cutting the line a little bit to avoid any bents!

So far so good, engine not turned on yet! maybe just a couple of days more to update my project post!

Keep in touch guys!
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