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01-01-2020, 04:09 PM | #1 | ||
FF.Com.Au Hardcore
Join Date: Sep 2014
Location: Catland
Posts: 3,878
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This was mentioned in another thread, so I had a dig. Apologies if there was already a thread on it.
https://www.roadandtrack.com/new-car...details-specs/ First response, was "the madmen, don't they know we live in a time of coming electric cars and how dare they?!" But it was explained as such: "In vehicles with 14,000-plus-pound GVWRs—like the Ford Super Duty—Beltramo told us its critical for an engine to operate at peak power with an optimal air-fuel ratio (stoichiometric combustion). From there, Ford worked backwards. "We built a map of where an engine, can run stoichiometric air-fuel without a bunch of spark retard," Beltramo said. "That led us to a torque-per-liter value and a power-per-liter value, [which] knowing that, boxed us to 7.3 liters." For fuel efficiency's sake, Ford engineers determined they wanted the engine to generate peak power at what Beltramo considers "relatively low" RPM. "That's what led us to a pushrod two-valve. It really is the optimum solution for the over 14,000-pound [segment]." " Nice - creating the engine using deductive logic for who requires it, how they use it, and how to optimise it. Nicer still they ended up with a massive petrol V8!
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