WILLIAMS: HARNESSING THE PU106B
Using the 2015-spec PU106B (compared to last year’s model PU106A), Mercedes-powered Williams had to bring similar changes to its hybrid power unit installation as the defending champions. This means the airbox (in green) has been modified and the distinctive log manifold replaced with a more traditional exhaust design (in red).
Radiator volume has also been shrunk, which has enabled engineers and designers to trim down the car’s sidepods. However, racing in Sepang-like sweltering conditions still requires more gills on the bodywork.
This said, the FW37’s cooling system differs from the corresponding assembly on the W06 Hybrid, where the intercooler is lodged within the monocoque itself. Let’s see how on the next page.