As well as attaining compliance with future EPA Tier 3 exhaust emission
regulations FPT Industrial has also
completely revised the most representative of its marine models. The new N67 570
features a 6 cylinder in-line architecture with a 6,7 litre displacement, 4
valves per cylinder, second generation electronically controlled Common Rail
fuel injection system and a turbocharger with waste-gate and intercooler.
Compared to the previous version, apart from a 10 HP power increase, the
engine above all offers a new lay-out and the optimization of the lubrication,
cooling, air-feeding and exhaust systems. The cylinder block, reinforced by its
"ladder frame" structure, remains the same, having exhaustively demonstrated its
reliability even under the high mechanical stresses of endurance racing.
As its key technical figures illustrate; weight/power ratio 1.14 Kg/HP,
power/displacement ratio 85 HP/litre and volume/power ratio 1.31 dm3/HP, the
new engine not only maintains the leadership in its class but actually increases
the gap between itself and its rivals. The N67 570 incorporates numerous
significant changes and optimised solutions amply tested in successful speed and
endurance racing, a highly effective test bed to explore the true limits of
power and reliability of an engine. Furthermore, FPT Industrial's great
experience in the production of the NEF Series engines is testified by the
numbers; last July the Turin Engine plant has indeed produced the one millionth
NEF engine, being in production since 2000.
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