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11-18-2010, 12:28 AM | #19 |
Thanks for the info. Still not 100% sure which is best. Got to look into it more. But one thing I did decide to do, was to put a 90 coming through the bulk head, aiming down, rather than shooting straight across. After seeing the video (thanks cydgdgdgege) and seeing how strong the oil streams out, I didn't want it shooting onto the crank; and tamago's idea about putting the 90 made a lot of sense to me too. But I'm not too sure yet if I do want to extend it into the oil or not; still researching...
This is what I got so far: Like tamago suggested, I could put this fitting on so the oil will return below the oil line. This is with the 3/8" fitting on the outside.. |
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11-18-2010, 06:34 AM | #20 | |
Start another Oil Thread!
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looking good sir
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11-18-2010, 05:25 PM | #21 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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So then, what's the point of putting a hole in the block so high? Why not just put it just below the level of the oil in the pan to begin with.
The laws of equalization should apply to any liquid fluid. No matter what the hight of the return line in the oil, the levels will always equalize out. Even if the return was taped underneath the pan. The whole problem with the Zage return was that is was too restrictive running it all the way to the front. The return line on my old Greddy kit was in the back of the oil pan and I experienced no problems with it at all. But it ran straight out the bottom of the turbo and into the pan. No bends anywhere. (I can post a picture of it later...) |
11-18-2010, 08:35 PM | #22 | |
Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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Quote:
Watching those YouTube videos, I was pretty surprised at the velocity of the return oil. But that also leads me to believe that the orientation of the return line isn't that big of a deal, as long as it doesn't dip up. Oil flowing at that velocity should just push it's way through the line... It's probably worth mentioning that (for me atleast) there is very little oil leaking. I don't know what to do at this point. I now have all the tools I need to tap the block, but am wondering if there's a better way to go about this. There's wayyy too much conflicting information - both here and online. |
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11-18-2010, 09:12 PM | #23 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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Here's a picture of the Greddy pan...
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11-18-2010, 09:46 PM | #24 |
Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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^ Thanks for the pic. That design is nearly identical to Zage's... With the exception of the return line routing.
EDIT: I just had an interesting thought. Say there was a pressure buildup at the turbo. Is it possible this could cause an increase in pressure at the feed location (in my case, the oil filter)? I've been noticing slightly higher oil pressures recently (90+, esp. at idle). Could be normal / unrelated though. Last edited by Focus_Sh1ft; 11-18-2010 at 09:56 PM. |
11-18-2010, 10:03 PM | #25 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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depends on RPM. When cold (under 10°C) oil pressure is around 80-90 psi @ 1500RPM and above until it starts to warm up. My car is usually at about 68 psi at cruse (2500ish RPM)
^ if that's any reference to you. |
11-18-2010, 10:12 PM | #26 |
Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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Yeah that sounds about right for me as well.
I ask because I've had this bizarre leak from every filter I've used since I did the turbo install. The mystery continues... |
11-19-2010, 11:00 AM | #27 |
Drives: Yaris LB Turbo Join Date: Aug 2006
Location: Miami FL
Posts: 782
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You guys are simply amazing.....
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11-19-2010, 12:58 PM | #28 |
Bathroom + Laptop = <3
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Hypocrisy, thy name is.... you
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11-19-2010, 01:32 PM | #29 |
Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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Nexus, good to hear from you again
I just checked my BOV and there was so little oil. Again, no loss of oil on the dipstick. Apparently some oil is normal, and the amount I'm seeing is very little. I'm going to play with my return line and return gasket before making any decisions to tap the block. I've also never once seen smoke out my exhaust... I did also yank the PCV hose off the MAF piping and threw a breather filter in. Probably better to be getting only clean air in the intake anyways. Screw the environment |
11-19-2010, 05:22 PM | #30 |
Bathroom + Laptop = <3
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hah yeah I lurk here alot, and stay in the background most of the time after the whole sleey0 thing. I like watching your builds progress.
I dunno, IMO whenever you turbo a car that isn't turboed to begin with from the factory, theres always going to be small BSey problems. Not something that will blow up the engine, but small things to irk you. You guys have the oil drains going legit down into the oil pan. Mine are shaped like an L and have a small incline and then goes into the pan but it is on the line right above the pan. If mine doesnt have problems even with an incline in my oil returns which is technically a no no, then you shouldnt either. |
11-20-2010, 08:40 AM | #31 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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I just had another idea as to the case of the backup on the return.
Everyone is thinking the return is too restrictive. Well has anyone considered there's a restriction in the PCV valve? If you had a build up of pressure in the crankcase, if the pressure isn't getting out the PCV valve there's only one other option, the drain line for the turbo. |
11-20-2010, 08:19 PM | #32 |
Progress so far...
Got the pan back on. Decided to go below the oil line. Installed the turbo manifold, turbo, and downpipe. The oil send/return line, and now working on the water line. Tightened the bango fitting with this ghetto trick. Got the manifold and turbo in place without removing the A/C line. We bolted the turbo to the manifold behind the engine, and then lifted it up and bolted it to the block. We didn't bolt it together first and then try and wedge it into place. It was easier to bolt it together while behind the engine. Quick question. Getting ready to put on the water line to the turbo. I am going to get it from the throttle body coolant lines. Just wondering if it matters which direction it flows into the turbo? Not sure which is "in" and which is "out." Even with the throttle body lines, which is "in" and which is "out." Obviously I can't start up the car to see which way it flows from the engine. If anyone knows, thanks in advance. |
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11-21-2010, 02:13 AM | #33 | |
Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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PETERPOOP, the coolant flow direction doesn't matter. Great progress so far keep it up |
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11-21-2010, 09:01 AM | #34 | ||
Start another Oil Thread!
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11-21-2010, 12:29 PM | #35 |
Bathroom + Laptop = <3
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Crush washers are said to only need 12 ftlbs of torque to seal, usually i see them require about 85ft lbs torque to never leak. You might be better off shaving the sides of a wrench, or making a crow foot deal by welding a closed end side of the wrench onto a socket so you can get a wrench in there in some way.
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11-21-2010, 02:12 PM | #36 | |
Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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There wasn't room to fit a 17mm socket on it, right? I can't remember, but I do remember not using a socket... |
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