Why Should You Replace the BMW Crank Hub?

If you are just starting your BMW tuning journey, you may not have heard of a BMW crank hub. What does it do? Why is it important if you are going to tune and upgrade your S55 engine? Knowing what this part is, when and why you should replace it, and how to prevent a catastrophic failure while driving is essential, especially if you want to tune your BMW.

What Is a Crank Hub? 

The crank hub is a vital component of some BMW engines, particularly the S55 and N55 engines. It connects the camshaft to the crankshaft while also controlling the timing of the engine valves. It’s a sprocket that helps ensure optimal performance and smooth engine operation. If it slips, it can cause the engine timing to be off, which leads to misfires, less power, and potentially catastrophic engine damage.

What Causes the Crank Hub to Fail?

What causes the crank hub to slip? This important part can become a weak point in the engine, slipping or spinning incorrectly under high stress. You might decide to use an N54 turbo replacement to get more horsepower, a common step in tuning a car. The hub’s components can start rotating independently of the crankshaft if there isn’t enough clamping force from the crank bolt, especially at high torque and RPM, like with an upgraded turbo. The detachment causes a misalignment in the timing components of the engine, which can damage pistons, bend valves, and cause severe damage.

How to Prevent Slipping

So, how do you prevent your N54, N55, or S55 crank hub from slipping? First, you can upgrade your crank hub. Aftermarket crank hubs are more durable and less prone to failure. Pinned hubs you may find on the market are a band-aid at best. Pins are never designed to transfer TQ or Load; they are designed to locate things. That is why VTT designed the Splined crank hub, not only does it make it easier to install, as it eliminates the need to drill into your crank shaft, but it also uses splines to transfer TQ, which is exactly what they are designed to do. If you are tuning your car, this is nearly a necessity. It’s peace of mind when you are tuning for higher performance.

About Vargas Turbocharger Technologies

Vargas Turbocharger Technologies spearheads innovation in the automotive performance industry. Their expert team specializes in cutting-edge turbocharging systems and parts for European and domestic platforms. Founded in 2012, VTT™ is known for engineering excellence, performance-driven design, and reliability. They are now a full-scale manufacturer of high-performance solutions, from complete turbo kits to modular billet valve covers and custom fabrication parts. VTT™ is ready to help car enthusiasts, professional racers, and performance shops upgrade parts and get the most out of their next build.

Find a crank hub replacement for your BMW at https://vargasturbo.com/

Original Source: https://bit.ly/4eKClic