Lamborghini launched their new Huracan GT3 Evo car at the last round of the Blancpain Endurance Series at the Nurburgring at the end of the 2018 season. By the last round of the 2019 season, the manufacturer was celebrating race wins at Daytona and Sebring at the start of the year, the Blancpain GT World Challenge Europe title, the Blancpain Endurance title, and the overall Blancpain title for the combination of the two series. To say that this has been a successful debut year is something of an understatement.
The list of changes to the Lamborghini Huracan GT3 Evo compared to the previous model is extensive; a new roll cage, new and more efficient aero, a new power steering system, a new engine, and new suspension design to make it more comfortable for the gentleman driver, as well as elongate tyre life in the endurance races.
There were many areas of the car that were further improved, from the lower bar of the roll cage to allow easier access for the drivers during quick change overs to more headroom for the taller drivers has been considered for comfort. Mandatory foam was added to the driver’s door for safety, but the anti-intrusion panels were not introduced; they were only for new cars.
Working with Dallara in its 40% wind tunnel, the car underwent extensive aero development work to make the car more predictable, in high and low speed cornering. ‘We moved the aero balance plus 10% to the front, so we worked on stability and pitch sensitivity,’ says Leonardo Galante, Technical Responsible for Motorsport at Lamborghini. ‘That means that when you have such aero, you have to create in the driver the feeling that even with car movement the aero position doesn’t change too much.’
One of the key changes was the design of the rear wing, which is stiffer, and has a twist in its chord to accommodate the different airflow from the side and over the top of the car. ‘Basically there is some internal structure like the wing of an aeroplane, so lightweight and very stiff,’ says Galante. ‘The previous wing had different technology and we had a little quality problem with this construction, so we improved the construction itself, which avoids aero elasticity, to keep the downforce and stability where you want.’
Modifications to the engine give more low-end power, and greater efficiency, but the key to the modifications is the rear suspension design. A new hub and upright means that the driveshaft can be changed from the car without touching the rear suspension itself. Five bolts would see the driveshaft released, and slid through the hub. ‘if you have some problem with the drive shaft you can extract everything, so five bolts and the whole drive shaft comes off without touching the suspension,’ says Galante. ‘That is nice.’