VTT "Spline Lock" CrankHub Solution & Crank Bolt Capture For BMW N54/N55/S55

We are happy to announce that VTT is offering the only complete S55 crank hub solution that does NOT require the crank to be drilled for pins. VTT's uses their proprietary "SplineLock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank to prevent slippage. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). VTT has spent many months testing, and retesting this design, utilizing well over 10 different samples to come to their final production version.

During testing, VTT's final hub managed to break their testing rig before slipping. These have been bench tested, and real-world tested on the VTT N54 race car spinning 8K RPM, and making well over 900whp. This technology means VTT's hub installs the same as a stock hub, no drilling of the crank, which means less labor is involved and is reversible is ever wanting to be uninstalled leaving no holes in the crank.

VTT SplineLock Crank hubs are CNC manufactured from Hardened 17-4SS for the ultimate in durability, and toughness.

Modifications:


Vargas Turbo - Spline Lock CrankHub Solution - BMW N54/N55/S55