I have noticed that winding the engine out at 3500 rpms in a lower gear is the best way to keep the egt's down. When climbing steep grades I just ride in 3rd gear at 50 mph and pyro sits at 900F.

Spence
1985 Mitsubishi PU 2.3 Turbo Diesel, 13" lift, Watercooled turbo, 4D56 Head, Atlas II,Fox Coilovers, Elockers,

1983 Mitsubishi PU 2.5 Turbo Diesel 4x4, fully restored

2003 G500, sliders, beadlocks, roofrack, ladder etc.