S55 Insane Performance 4 Pin Crank Hub Fix
As many will know, the S55 has a common failure with the crank hub failing due to the original design using a central bolt and friction for the timing set up. When this is under load, normally during downshifts, the torque load on the crank can cause the standard hub to slip which will cause the timing to jump which will normally result in internal engine damage.
By using this one piece billet design the gears on the hub are unable to spin meaning you stop this fault from happening, this not only gives you peace of mind at standard power there is also the confidence that it will be reliable with more power with plenty of examples of people running over 700bhp worry free.
