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Re: BBF 528 Pump Gas Engine: 737HP & 672lb-ft Torque
Spec Sheets:
Note the strong and stable torque curve. This build was for a jet boat, so the dyno pulls were from 4500 rpm and up, but one early pull, where the oil was just changed from petroleum (engine break-in) to synthetic (pulls), was a lighter pull from just 4000-5500 rpm, and even down there the lowest torque number is 96% of the highest. So now we know that the torque band is diesel flat from at least 4000-6500...and based on this analysis, it's pretty safe to say that the flat torque extends well below the 4000 rpm mark.
Paul
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