Keeping the oil cool (total cost £425, including gauges)
This mod will work for all M52, M54 and M56 engines. Roadsports races last 45 minutes but the club enduro races are 2 hours. Others report that at close to 45 minutes the without an oil cooler the temperature gets uncomfortingly high. This presents a serious problem as the oil temperatures will steadily rise further and could exceed the design perimeters of the oil, typically 160 degrees. It can be compensated somewhat by using a heavier oil 10w60 instead of 5w40. The heavier oil helps maintain the oil pressure, and therefore protection, as the oil heats and thins. Continue reading “Oil Cooler Mod (330Ci)”