CSF’s charge-air cooler manifold for BMW G-Series B58 is a great choice of brand as a replacement for the worn-out stock OEM. It is designed and built to provide high-quality performance. CSF prides itself on its high level of commitment to R&D, producing many innovations in heat transfer technology. CSF is the premiere choice of champions in many different segments of motorsports around the globe.

Performance:

The OEM water-cooled charge air cooler intake manifold for the B58 engine is adequate in cars with little or no modifications. Still, it shows an apparent weakness in cars with bolt-on modifications, turbo upgrades, increased fueling (such as port injection), and performance tuning. Also, the OEM intercooler system has been known to suffer from heat soak in demanding racing conditions such as time attack, endurance racing, drag racing, and drifting, as well as spirited driving on the street. This can cause the car to pull timing out of the engine due to high intake air temperatures (IATs), and then can cause “limp mode” once temperatures reach a certain threshold, as the vehicle’s ECU will cut power to protect the engine.

Design & Engineering

CSF conducted extensive testing on the dyno with R&D partner VF Engineering to ensure performance improvements before going into production with the new manifold. We performed over 50 dyno runs on the same car, on the same day, in relatively hot ambient conditions (~90°F), comparing the performance of the CSF Charge-Air Cooler Manifold to the OEM. Both the CSF and OEM cooler went through roughly 25 back-to-back dyno pulls every 30 seconds to measure the car's performance over time, resistance to heat soak, recovery time, and the effect on the turbo system duty cycle.

Individual Nitrous / Methanol Injector Ports

Each cylinder runner has a 1/8th NPT port on the outlet tank, which can be used for nitrous or methanol injection (a popular power modification on the B58 engine). The CSF manifold allows for maximum spray control and even spray distribution throughout the engine.

Top Feed Port Injection with Included Fuel Rail

An extruded fuel rail is included with the CSF manifold. It can be attached to the outlet side of the manifold. The AN-8 fuel rail comes with feed and returns -8 internal hex plug fittings from Radium Engineering for a plug-and-play installation.

• The fuel rail aperture for each cylinder is an optimized 7mm opening for compatibility with the most commonly used high-performance injectors.
• CSF recommends using Injector Dynamics (ID) injectors for the best performance – the most commonly used injector for this engine has been ID model # 1050.34.14.14.6 (qty 6)
• Anodized CNC machined injector hats (qty 6) are included in the supplied hardware kit to accommodate short height injectors, aka “shorties.”