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Notice in the second video at around 13 minutes, after you downshift, how much happier the engine is at 15 mph @ 2100 rpm instead of 18 mph @ 1400 rpm.

Maybe acme66 will beg to differ, but I don't think he's being attacked here... It's just that, unlike the LDT engines from a deuce, the Cummins 250 does not have a reputation for blowing up. Of course they can and do like any engine, but they are not known for it to be a serious problem. So to...

At high elevations, the turbo can over speed because the air is thinner... I think they make these zippy turbos for emissions purposes, so there is less lag time, but their sensitivity to high altitudes is the down side. I don't think you can have it both ways, a fast, high boost, low-lag turbo...

A friend of mine was a truck driver back in the 1970s-1980s... I remember something he told me when he saw that I was installing a pyrometer in my deuce back in 2007. "You don't need that if you know how to drive!" He went on to say that you should never keep the accelerator pedal down to the...