Complex sentence: Development continued, and the later Sabre VII delivered 3,500 hp (2,600 kW) with a new supercharger; the final test examples delivered 5,500 hp (4.100 kW) at 45 lb/in 2 boost.
Split into simpler sentences: Development continued, and the later Sabre VII delivered 3,500 hp (2,600 kW) with a new supercharger. The final test engines delivered 5,500 hp (4.100 kW) at 45 lb/in 2 boost.