Product Description
BMW S55 Keyed Crank Hub Kit - CarBahn Autoworks CBS55-6001
BMW S55 Keyed Crank Hub Kit - CarBahn Autoworks CBS55-6001
The S55 engine is not designed to take a large increase in boost beyond the OEM spec. Due to the design of the crankshaft, it is known to have the timing chain sprocket spin on the end of the crankshaft, causing the cams to go out of time.
If you are planning a large power increase with bigger turbos, CarBahn Autoworks has designed a high-performance engine to handle very high outputs by pinning the cam sprocket to the crankshaft.
*Note – Core charge may apply. Contact us for details.
The keyed crank hub kit includes the Keyed hub, Crank bolt, Drill, drill fixture, and drill fixture bolt.
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. This crank hub uses OEM gears and hub machined and pinned to prevent slipping. Metallurgy is superior to most aftermarket sprockets on the market.
Vehicle Fitment:
- 2015-2018 BMW M3 Base Sedan
- 2015-2020 BMW M4 Base Coupe
- 2015-2020 BMW M4 Base Convertible
- 2016 BMW M4 GTS Coupe
- 2018 BMW M3 Competition Sedan
- 2018 BMW M3 CS Sedan
- 2018-2020 BMW M4 CS Coupe
- 2019-2020 BMW M4 Competition Coupe
- 2019-2020 BMW M4 Competition Convertible
- 2019-2021 BMW M2 Competition Coupe
- 2020 BMW M2 CS Coupe
With our experience and advanced diagnostic equipment, we can find out what’s wrong with your BMW and Mercedes quickly and efficiently. We are called in for second and third opinions all the time because we’re considered the experts. General repair shops will diagnose a BMW or Mercedes the same way they diagnose any vehicle in their garage. CarBahn Autoworks is a team of BMW and Mercedes specialists that give your vehicle the attention it deserves. Our highly-skilled mechanics using state-of-the-art technologies leave no room for error. Quality auto repair service for your luxury vehicle should never be a guessing game. Our customers know that we can be trusted, and that we’re considered the best shop to bring their BMW or Mercedes to. We don’t just do great work cars, but we’re also educators. We run our own training specialist program, teaching local area technicians the proper service luxury vehicles. Because we know BMWs and Mercedes inside and out, we’re even called on to fly around the country to teach other repair shops.
