Brake Caliper Orientation: Why the Bleed Screw Position Matters

This video explains the importance of mounting brake calipers in the correct orientation, using the R34 and R35 GT-R brake setups as an example. We show how positioning the caliper with the bleed screw at the highest point allows trapped air to escape properly during bleeding—helping prevent a soft or spongy brake pedal. It’s a small installation detail that can make a significant difference to brake system performance.