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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
9.5 aluminator vs 11to1
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<blockquote data-quote="CPRsm" data-source="post: 13852502" data-attributes="member: 81705"><p>Lbs/min is only calculated. Advancing ignition leans a burn out that the O2's read. It doesn't ACTUALLY change the mixture burn say. Advancing shows a leaner burn even though the mass and fuel weight doesn't change. O2's read unburnt oxygen. O2's tell ecu leaner than target lambda, STFT's add fuel, calculated lbs/min rise because of it. Splained. Lol</p><p></p><p></p><p></p><p>Iirc the old engines were 1.4l making just shy of 1500. But 50psi or so I think. I forget exactly. Numbers floating around in my head from a cosworth engine development documentary I watched. This numbers sound about right?</p></blockquote><p></p>
[QUOTE="CPRsm, post: 13852502, member: 81705"] Lbs/min is only calculated. Advancing ignition leans a burn out that the O2's read. It doesn't ACTUALLY change the mixture burn say. Advancing shows a leaner burn even though the mass and fuel weight doesn't change. O2's read unburnt oxygen. O2's tell ecu leaner than target lambda, STFT's add fuel, calculated lbs/min rise because of it. Splained. Lol Iirc the old engines were 1.4l making just shy of 1500. But 50psi or so I think. I forget exactly. Numbers floating around in my head from a cosworth engine development documentary I watched. This numbers sound about right? [/QUOTE]
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9.5 aluminator vs 11to1
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