ChooChooMan74 wrote:
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The GDE tune Turbo Brake option is what most of today's trucks use for engine braking (with the exception, you can get a real exhaust brake (loadleash) for 6.7 Cummins made by PacBrake). They basically adjust the turbo vanes for maximum back pressure. It works very well, IMHO for a 3.0 liters.
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AFAIK all the big 3 diesels currently come with an exhaust brake. And I thought they worked by adjusting the turbo vanes; so that's what I do not understand: this difference between an "exhaust" and "turbo" brake.