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I would highly doubt the concern is a bearing one. But if it is tilted too far there is a likely hood of oil building up and bypassing the piston ring and causing a little smoking. If you can live with that I wouldnt be too concerned
This is what i was thinking. I was also under the impression it was a drain issue.
OP one of my JB turbos is tilted about 10 degrees and I have zero drain/smoking issues.
This is what i was thinking. I was also under the impression it was a drain issue.
OP one of my JB turbos is tilted about 10 degrees and I have zero drain/smoking issues.
I am not concerned with oil drain. The turbo will have more than enough angle on the drain line to gravity evac and it is a -10 line. A little puff of smoke is a non issue for me as well.
I am just concerned about the bearings not liking the angle.
What is the maximum angle you think I could get away with and not have any adverse effects on turbo life? 30°?
I am not concerned with oil drain. The turbo will have more than enough angle on the drain line to gravity evac and it is a -10 line. A little puff of smoke is a non issue for me as well. I am just concerned about the bearings not liking the angle. What is the maximum angle you think I could get away with and not have any adverse effects on turbo life? 30°?
Regardless of how sharp your return hose angle is you will still lose a little bit of draining if the turbo isn't straight up and down. As minimal as it might be its still there. With my T/N turbos I believe 14* is the max allowed. I have -10 line with a 90 bend coming right off the bottom of the turbo. With that said I believe every specification has a little tolerance built in. So in my specific application I would not exceed 20*
If your turbo manufacturer says 30* is acceptable than go with 30* my .02 anyways.
-10AN line is on the small side in some cases. Esp. if the fitting ID isn’t a true -10. Check the actual drain port diameter on the turbo itself and ensure you don’t go smaller than that anywhere in the system. I believe BW suggests no smaller than a 19cm (3/4”!) ID drain. Copper tubing works well for this.
I’d be more than comfortable up to 30* assuming the drain is setup correctly.
-10AN line is on the small side in some cases. Esp. if the fitting ID isn’t a true -10. Check the actual drain port diameter on the turbo itself and ensure you don’t go smaller than that anywhere in the system. I believe BW suggests no smaller than a 19cm (3/4”!) ID drain. Copper tubing works well for this. I’d be more than comfortable up to 30* assuming the drain is setup correctly.
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10° max mounting angle for BW S480? 
