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[quote]QUOTE: Originally posted by adrianspeeder Even at max boost, under full load and throttle, the engine sometimes cant get enough air. I have a performance computer chip on my truck. When my diesel is set to the stock setting (240hp, 525#ft torque), the turbo supplies enough air to keep air/fuel ratio balanced. Except when i was running hard up a mountain and pulling a trailer. The stock computer read that there was not enough air (remember this is at full boost) and compinsated with less fuel. Now my new programmable performance chip lets me increase hp by 125 and almost 150 #ft torque. Thats a real kick in the pants, but dosent do anything to increase air. Turbo still only can put out 25 pounds of boost. The chip mainly just adds fuel by tricking the stock computer, and changing the tranny shift points. That extra fuel gets a heck of a lot more power, but because it is a rich mixture, it smokes. (handy to put snotty ricers and sports cars in their place.) This is how my and every other truck diesel works, and other than the size and the final drive, I see little difference in a loco diesel. Any railroad mechs to add thoughts? Adrianspeeder [/quote] Yeah, I used to see that smoke all the time on diesels when I was driving in the mountains. It can be a pretty damn big cloud at times, not ideal to be following them... [B)]
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