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Mustang Forums
2011-2014 Mustangs
2011-2014 Mustang Talk
What is needed to pull to 7700-8000 Rpm's - safely/reliably
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<blockquote data-quote="jymboslice" data-source="post: 12546354" data-attributes="member: 121821"><p>I never thought of that. Basically you need to swap to a totally different piston (Or use the Boss pistons) to be able to run that high of RPM and still have some sort of longevity. Even if you were to install a set of forged rods/pistons, you would still need an oil cooler, larger radiator, and stiffer valve springs to run that high rpm safely (With boost or with an aggressive NA motor). </p><p></p><p>I do agree with you though, if I were to run that high of RPM right now, something would eventually let go. I would bet something would let go very soon, too. </p><p></p><p></p><p></p><p>The heads flow like 4% more than the coyote ones do, it's not that much of a difference. The boss also has better valves - if that even makes a difference, I am assuming so. </p><p></p><p>The boss also has a larger radiator and an oil cooler. I bet those help things out too.</p></blockquote><p></p>
[QUOTE="jymboslice, post: 12546354, member: 121821"] I never thought of that. Basically you need to swap to a totally different piston (Or use the Boss pistons) to be able to run that high of RPM and still have some sort of longevity. Even if you were to install a set of forged rods/pistons, you would still need an oil cooler, larger radiator, and stiffer valve springs to run that high rpm safely (With boost or with an aggressive NA motor). I do agree with you though, if I were to run that high of RPM right now, something would eventually let go. I would bet something would let go very soon, too. The heads flow like 4% more than the coyote ones do, it's not that much of a difference. The boss also has better valves - if that even makes a difference, I am assuming so. The boss also has a larger radiator and an oil cooler. I bet those help things out too. [/QUOTE]
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2011-2014 Mustang Talk
What is needed to pull to 7700-8000 Rpm's - safely/reliably
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