Turbo angles
05 April 2003, 08:32 PM
#1
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What are the boundaries for turbo positioning, in regard to how many degrees off horizontal can you go, if at all? Answers other than "Err... I wouldn't have thought by much I suppose..." would be greatly appreciated 
And does anyone know if the turbos on Skylines are mounted in the same plain as each other? Cheers.
And does anyone know if the turbos on Skylines are mounted in the same plain as each other? Cheers.
05 April 2003, 08:45 PM
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Jase,
Garrett quote 15 deg' max'. I suspect that this is a little conservative. Not certain for the IHI's, but I guess it will be similar.
GrpA's, etc' will run more, even near 90 deg', but firstly they will be bouncing around, so the oil will stand a better chance of splashing the upper bearing, and secondly, they can afford to change them on a regular basis.
Mark.
Garrett quote 15 deg' max'. I suspect that this is a little conservative. Not certain for the IHI's, but I guess it will be similar.
GrpA's, etc' will run more, even near 90 deg', but firstly they will be bouncing around, so the oil will stand a better chance of splashing the upper bearing, and secondly, they can afford to change them on a regular basis.
Mark.
05 April 2003, 10:16 PM
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Another problem is the oil return to the crankcase. If the oil accumulates on top of one of the shaft seals, it will leak through when the car is stationary. The seals rely on shaft rotation to function properly.
Looking at the TD turbo's it should be possible to run up to 45 degrees tilt if you fit an additional drain point to the rear of the bearing housing.
Andy
Looking at the TD turbo's it should be possible to run up to 45 degrees tilt if you fit an additional drain point to the rear of the bearing housing.
Andy
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