On the way to work this morning:

@ 3300 rpm, indicated speed is 70 mph and boost is 9.5 psi
@ 3000 rpm, indicated speed is 65 mph and boost is 6.5 psi
@ 2750 rpm, indicated speed is 60 mph and boost is 5 psi

I tried to take the measurements on level roads. I think the big jump in boost between 65 and 70 mph must be due to the aerodynamics, or lack of. I would try some of the higher speeds, but I think I need to tweak the wastegate some more. The wastegate opens about 10.5 psi. I have hit 11.5 psi going up a hill, but it was momentary.

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2001 Dodge Ram 2500 Cummins Turbo Diesel - 4x4, auto, 3.54 gears, long bed
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