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Effect of Fuel Pressure on Diesel Engine Performance

Diesel Tuning Fundamentals

Relevant Module: Diesel Fundamentals > Effect of Fuel Pressure on Engine Performance

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So, you have decreased the fuel pressure, the pulse width increased, the power decreased because the the EOI retarted. If you advance the injection time in this scenario, the power should increase agains?

It may improve slightly (especially at low engine speed). The effect will be muted as RPM increases. There's a reason all factory injection systems have moved from 160MPa to ~220 over the past 15 years. The atomization and short injection window of a higher pressure system is tough to beat.

-Nick

Thanks Nick!

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