Try not to confuse the fact that Wazari is talking about the 2017 iterations from both teams, and Boullier is only talking about the 2018 Renault V's 2017 Honda.RonDennis wrote: ↑29 Dec 2017, 04:01Further explanation from the McLaren director: "We are not radically changing the car, the 2018 will be 100% an evolution of the current. The radiators required by the Renault unit are smaller than those of Honda, making our aerodynamic set easier. We need to redesign the exchange. I can not tell you anything else, "Boullier told GloboSport.com reporter.
The need for cooling the French power unit is less than that used by Honda. The implication of the smaller radiator is the freedom granted to designers to design lower and more premature sides, with significant gain in aerodynamics, such as less drag and greater airflow to the rear airfoil, another source of aerodynamic pressure generation.
Obviously all PU manufacturers will have toiled in earnest to reduce the size of just about everything, so no doubt Honda have made improvements in this area as well.