Jersey's James Walker and JMW Motorsport team mate Rob Bell finished seventh in the 1000km Spa Race.
The pair started second on the grid following a strong performance in qualifying at the French track.
The team made an impressive start leading through the early stages, but were hampered by a cracked radiator that took 20 minutes to fix.
Walker said: "These things happen in racing, the good news is that we got a good haul of points."
The pair return to action in the next round of Le Mans Series at Imola on 3 July.