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GEN 3 (2021+) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Cobb Intercooler boost question
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<blockquote data-quote="James O" data-source="post: 1884366" data-attributes="member: 52709"><p>I put a 4" expansion plug on air intake tube where it connects to air box and pressurized it with a quick connect fitting that fits one of the vacuum ports. I was just adding enough to get leaks to show up.</p><p>I can hear another one somewhere that shows up about 6 PSI. </p><p>I will have to cap off the high pressure sides and cap off before throttle body next time to test it to 12 PSI. The air intake side is not for pressure.</p></blockquote><p></p>
[QUOTE="James O, post: 1884366, member: 52709"] I put a 4" expansion plug on air intake tube where it connects to air box and pressurized it with a quick connect fitting that fits one of the vacuum ports. I was just adding enough to get leaks to show up. I can hear another one somewhere that shows up about 6 PSI. I will have to cap off the high pressure sides and cap off before throttle body next time to test it to 12 PSI. The air intake side is not for pressure. [/QUOTE]
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