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Cobra Forums
2020+ Shelby GT500 Mustang
Anyone else frustrated with Ford over the next GT500?
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<blockquote data-quote="MarcSpaz" data-source="post: 16118984" data-attributes="member: 183445"><p>The reason LT's increase power is because the airflow is perfectly timed so the exhaust flow from other cylinders creates a vacuum on the back of a closed exhaust valve. When the exhaust valve opens, the vacuum helps evacuate the cylinder more quickly and completely. That in turn helps get more clean air into the cylinder. The better use of the volume, the more air to compress, the more power made.</p><p></p><p>The length of the tubes and the size/placement of the collector are optimized for optimal scavenging based on the fire order. (valve timing really... but its all relative.)</p></blockquote><p></p>
[QUOTE="MarcSpaz, post: 16118984, member: 183445"] The reason LT's increase power is because the airflow is perfectly timed so the exhaust flow from other cylinders creates a vacuum on the back of a closed exhaust valve. When the exhaust valve opens, the vacuum helps evacuate the cylinder more quickly and completely. That in turn helps get more clean air into the cylinder. The better use of the volume, the more air to compress, the more power made. The length of the tubes and the size/placement of the collector are optimized for optimal scavenging based on the fire order. (valve timing really... but its all relative.) [/QUOTE]
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2020+ Shelby GT500 Mustang
Anyone else frustrated with Ford over the next GT500?
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