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Diesels & altitude
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I would like to know the brand of diesel truck in the original question. If it is a Ford with the International v-8, this engine suffers from the same problem that has plauged every v-8 made by International-running 8 cylinders with only 5 main bearings, making the crankshaft too weak to handle the increase of compression ratio that would come from using a turbocharger big enough to supply the air required to compensate for the altitude density loss. If the truck in question is a Dodge with the cummins inline 6, I think that a dealer could make an adjustment. I know nothing about GM Duramax, but if it is also a v-8 , the crankshaft could again be the limiting factor. When International tried to produce a v-8 farm tractor, the 1468, the farmers tried to turbocharge this naturally aspirated engine with crankshaft failure following not to far behind. <br />
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