Money Shifting The 2023 Nissan Z - What Happens?!
A video on YouTube. In Cars, a Krater category.
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This video examines the mechanics and consequences of money shifting a manual transmission vehicle, focusing on engine over-revving, valve float, and valve-piston interference. It concludes that mismatched gear ratios during a mis-shift can dramatically exceed the engine's design limits and cause catastrophic engine damage.
From the video
Answers: What happens when you money shift a manual transmission car?
- Money shifting mechanics
- Transmission gear ratios
- Engine redline limits
- Valve float and interference engines
- Piston speed calculations
- Manual transmission lockout and skip-shift
What it concludes
- Money shifting a car into a lower gear than intended forces the engine RPM well past its redline, leading to severe mechanical stress.
- Higher gear ratio gaps between mis-shifted gears result in significantly higher over-rev speeds and greater engine damage potential.
- Exceeding the engine design RPM limits causes valve float, where springs can no longer control valve motion, leading to potential valve and piston contact in interference engines.
- Average piston speeds during severe money shifts can exceed the limits of production cars, reaching destructive velocities.
- Technologies like reverse gear lockouts and GM skip-shift can prevent certain mis-shifts, but mechanical solutions to prevent money shifts are largely unavailable.
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