The engine also proved its reliability with 4 wins (1987, 1988, 1990 and 1992) in the Spa 24 Hours (the 1990 and 1992 wins where with the upgraded 2.5 litre "evolution" version of the engine).
O motor tamén demostrou a súa fiabilidade con 4 vitorias (1987, 1988, 1990 e 1992) na 24 Horas de Spa (as de 1990 e 1992, onde gaña co 2,5 litros versión "evolución" mellorada do motor).