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BMW F80/F82/F83/F87 M3/M3CS/M4/M4CS/M2C/M4GTS CarBahn S55 Keyed Crank Hub Kit (CBS55-KCHK)

The original flawed design allows the timing gear to spin independently from the crank, especially when the motor is modified. Best case scenario the motor needs to be re-timed with new components. Worst case, the valves contact the pistons requiring a complete overhaul. Common symptoms are rough running and camshaft angle deviation faults. We had this issue several times on our shop F80 M3, one of which required valve replacement. At that point we had this solution machined, and we installed it in our car and a few other test cars last year. We went from a failure at each event to setting new records at the track and on the dyno. We have now achieved a best 1/4 mile time of 9.35@151mph, and we just recently made 899whp/805tq on our Dynojet on E85 fuel. We have two other cars that have made over 1150whp.
The original flawed design allows the timing gear to spin independently from the crank, especially when the motor is modified. Best case scenario the motor needs to be re-timed with new components. Worst case, the valves contact the pistons requiring a co...
The History of How We Got Started CARBAHN Autoworks is led by Steve Dinan, a luxury car enthusiast just like you. His vast experience with high-powered BMW performance is more than just a hobby. He even took his BMW expertise to the race track, where he gained firsthand knowledge about maximizing your BMW’s potential. From behind the wheel of a BMW, he’s gained a more in-depth knowledge and understanding of how to maximize their performance and potential. CARBAHN Autoworks reputation for unmatched technical knowledge and attention to detail builds from a lifetime in the auto service industry. In fact, it’s our exceptional service, state-of-the-art diagnostic technology, and competitive pricing that make CARBAHN Autoworks the premier alternative to dealer service for complete BMW and Mercedes repair. As an automotive and race engineer Steve’s passion for these superior vehicles translates into a deep understanding of, and intense commitment to how they perform. In 1979, he started the largest company in North America dedicated to BMW high performance (Dinan Engineering). He was acting CEO and Technical Director for 36 years. Dinan secured a contract with BMWNA in 1997 and is the only company that has approval to sell their product out of BMW dealers. Sixteen years as a racing driver retiring from driving in 1996. A racing chassis engineer for 10 years. A racing engine supplier for 10 years. Steve Dinan has won 11 championships including two 24 hours of Daytona!
The History of How We Got Started CARBAHN Autoworks is led by Steve Dinan, a luxury car enthusiast just like you. His vast experience with high-powered BMW performance is more than just a hobby. He even took his BMW expertise to the race track, where he ...