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2020+ Shelby GT500 Mustang
Supercharged 5.2 discussion
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<blockquote data-quote="Tob" data-source="post: 16107460" data-attributes="member: 83412"><p>SID posted a host of close up photos in a front page article, here.</p><p><a href="https://www.svtperformance.com/threads/112-detailed-2020-predator-shelby-gt500-mustang-pics-from-naias-2019.1170339/#post-16107320" target="_blank">https://www.svtperformance.com/threads/112-detailed-2020-predator-shelby-gt500-mustang-pics-from-naias-2019.1170339/#post-16107320</a></p><p></p><p>Something I noticed during the intro right away and asked him if he could get some close ups of the engine and DCT on their respective stands.</p><p></p><p>The balancer. Some here may remember the balancer debacle from the 2007 GT500's. I'm getting old and starting to forget but I believe the Ford GT's suffered from this issue as well. Ford used an extremely heavy balancer (~26lbs or so) and found that when power got bumped ever higher, keyways got stripped and crank snouts could fail.</p><p></p><p><em>Catastrophically.</em></p><p><em></em></p><p><em></em></p><p>Ford changed to an elastomer balancer starting on the 2008 GT500's which were a bit lighter. And while I never confirmed it, I believe the potentially problematic balancers were viscous style, silicone filled with an inertia ring. It was highly recommended to swap to the newer style when upgrading superchargers. Justin from VMP posted this a decade or so ago...</p><p></p><p>[ATTACH=full]1545817[/ATTACH]</p><p></p><p>Another view that illustrates the difference between the two balancers...</p><p></p><p>[ATTACH=full]1545818[/ATTACH]</p><p></p><p></p><p>Ford Racing wouldn't warranty your TVS unless you replaced your 2007 GT500 damper with the lighter elastomer unit from 2008 and later cars. Note the highlighted text at the bottom of one of the instruction sheets...</p><p></p><p>[ATTACH=full]1545823[/ATTACH]</p><p></p><p></p><p>Anyway, Coyote engines (including the GT350's Voodoo engine) have continued to use the elastomer style. So my eyes were wide open when I saw what looks to be a viscous damper on the 2020 GT500 engine...</p><p></p><p></p><p>[ATTACH=full]1545819[/ATTACH]</p><p></p><p></p><p>Look closely at both the text and at (this kills me to say this) the lousy welds...</p><p></p><p>[ATTACH=full]1545820[/ATTACH]</p><p></p><p></p><p>Failure of the damper "and engine compartment"<em> means get the **** out of the inertial path</em> if you damage this thing such that it goes out of balance or you ting it in a way that the inertia ring inside is no longer free to move.</p><p></p><p>A diagram to better illustrate the innards. Notice the concentric welds on the damper face done to seal up the assembly (along with some small plug welds)...</p><p></p><p>[ATTACH=full]1545821[/ATTACH]</p><p></p><p></p><p>An example of a cutaway Fluidampr (their spelling not mine) below that operates on the principle laid out in the above diagram.</p><p></p><p>[ATTACH=full]1545822[/ATTACH]</p><p></p><p></p><p>Ford needs to be pressed on this one hard. Not saying they haven't figured it out but rather why was it necessary to go with this style of damper.</p></blockquote><p></p>
[QUOTE="Tob, post: 16107460, member: 83412"] SID posted a host of close up photos in a front page article, here. [URL]https://www.svtperformance.com/threads/112-detailed-2020-predator-shelby-gt500-mustang-pics-from-naias-2019.1170339/#post-16107320[/URL] Something I noticed during the intro right away and asked him if he could get some close ups of the engine and DCT on their respective stands. The balancer. Some here may remember the balancer debacle from the 2007 GT500's. I'm getting old and starting to forget but I believe the Ford GT's suffered from this issue as well. Ford used an extremely heavy balancer (~26lbs or so) and found that when power got bumped ever higher, keyways got stripped and crank snouts could fail. [i]Catastrophically. [/i] Ford changed to an elastomer balancer starting on the 2008 GT500's which were a bit lighter. And while I never confirmed it, I believe the potentially problematic balancers were viscous style, silicone filled with an inertia ring. It was highly recommended to swap to the newer style when upgrading superchargers. Justin from VMP posted this a decade or so ago... [ATTACH=full]1545817[/ATTACH] Another view that illustrates the difference between the two balancers... [ATTACH=full]1545818[/ATTACH] Ford Racing wouldn't warranty your TVS unless you replaced your 2007 GT500 damper with the lighter elastomer unit from 2008 and later cars. Note the highlighted text at the bottom of one of the instruction sheets... [ATTACH=full]1545823[/ATTACH] Anyway, Coyote engines (including the GT350's Voodoo engine) have continued to use the elastomer style. So my eyes were wide open when I saw what looks to be a viscous damper on the 2020 GT500 engine... [ATTACH=full]1545819[/ATTACH] Look closely at both the text and at (this kills me to say this) the lousy welds... [ATTACH=full]1545820[/ATTACH] Failure of the damper "and engine compartment"[i] means get the **** out of the inertial path[/i] if you damage this thing such that it goes out of balance or you ting it in a way that the inertia ring inside is no longer free to move. A diagram to better illustrate the innards. Notice the concentric welds on the damper face done to seal up the assembly (along with some small plug welds)... [ATTACH=full]1545821[/ATTACH] An example of a cutaway Fluidampr (their spelling not mine) below that operates on the principle laid out in the above diagram. [ATTACH=full]1545822[/ATTACH] Ford needs to be pressed on this one hard. Not saying they haven't figured it out but rather why was it necessary to go with this style of damper. [/QUOTE]
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