S58 Exhaust Cam Blocks - 109

The Wait is Over! Our S58 Cam Blocks are here and in stock ready to ship. For those looking to make power with a single turbo and or a built engine running high boost, many will run into the issue of having their exhaust cam drift or walk backwards. Something a tuner will be on the lookout for and you will hit a limit. So we have designed these cam blocks to help prevent "cam walk" and allow the tuner to be able to dial in your car without this sporadic issue. Exhaust Cam Load: On the S58, the exhaust camshaft is responsible for driving two high-pressure fuel pumps. When the engine is tuned, especially with stiffer valve springs or higher fuel-pressure demands from upgraded HPFPs, that extra mechanical load can exceed what the VANOS system can comfortably control. The result is exhaust cam timing drift, often referred to as cam walk. Fuel-Pressure Variability: As cam timing begins to wander at high load or high RPM, the HPFPs are no longer driven in a stable, predictable pattern.

Configuration: 109

Fitment: BMW G80, G82, G83, G87

SKU: NRW-S58B58GE-109