Bruno Senna says he is hopeful that a new aerodynamic package will help the ORECA team in the second round of the Le Mans Series this weekend at Spa.

The Brazilian finished third on his debut in the series last time out at Catalunya, and will again run alongside Stephane Ortelli in the #10 for the Belgian event - which will mark the final event on the calendar before the Le Mans 24 Hours.

As well as the aerodynamic improvements, Senna and Ortelli will also look to make the most of an updated version of the AIM engine which was already fitted to the sister car of Olivier Panis and Nicolas Lapierre in Spain.

"[The new aero] is not a guarantee that we will be running ahead of everybody, but is surely a step forward," Senna said. "There are maybe 20 extra BHP from the new engine, which would make some difference."

As well as the likes of Aston Martin and Pescarolo, the Spa event will see the first appearance of the year for the factory Peugeot team and Senna admitted it would be a tough challenge to try and fight for victory.

"I don't believe we will have the same pace [as their rivals], even with the updates," he said. "Anyway, long distance races are always unpredictable, so anything can happen."