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2015+ Shelby GT350 Mustang
Shelby GT350 5.2-liter Engine
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<blockquote data-quote="Tob" data-source="post: 14654088" data-attributes="member: 83412"><p>I'm aware of numerous plastic pan issues on Ford trucks, be it cracking, warpage, faulty plastic drain plugs, etc. That does raise an eyebrow and I believe a valid concern. Theoretically, the move to plastic makes sense. They save weight and should be able to withstand the same rigors as previous steel pans at least as far as Ford durability standards are concerned. When Ford went to a cast aluminum pan for use on the '13/'14 Trinity engines I immediately wondered about impact resistance/cracking. I can't think of a single instance being reported and paraded over the web (yet, anyway). The same goes for plastic which has had issues to date. Long term heat cycling, thermal shock from cold to hot, impact resistance levels, and the ability to maintain proper sealing qualities throughout, are conditions that Ford has supposedly conquered and as such enabled the use of a composite. That said, I'd much prefer a steel pan as it is a part I'd rather not have to ever worry about. Considering the small volume of these engines, Ford could have farmed out a really trick steel pan. Added cost? Yes. Added weight? Yes. Worth the piece of mind and increased durability potential? Absolutely.</p><p></p><p></p><p>I suppose we won't see much more picking and choosing as the GT350 program was one that lived by a pretty clear performance metric. In essence, if a part doesn't add "performance" they didn't use it. And we're all aware of the concern Ford had with respect to weight so a plastic pan was a natural. In my view however, the weight savings isn't worth the potential i$$ues. Oil pans generally are not that heavy to begin with when made from steel. It looks as if typical weight savings are under 50% if the following chart means much. I forget which platform this related to (Fusion, etc) but I believe one could reasonably assume that related 5.2 engine components would see typical weight reductions respective of relative size.</p><p></p><p></p><p>[ATTACH=full]623385[/ATTACH]</p><p></p><p></p><p>I'm all for composite valve covers and it looks as if Ford has finally figured out how to make a plastic intake manifold that doesn't warp/leak (a debacle for many Ford owners previously). The difference is that these components are mounted atop the engine and as such not a concern with respect to impact <em>or the slip of a jack</em>. I'm a dinosaur and like my connecting rods forged the old fashioned way as well as a steel oil pan. Ford has been legislated into a position that is taking them in a different direction and I credit them for their efforts. Evolve or die I suppose, which didn't play out too well for the dinosaur.:uh oh:</p></blockquote><p></p>
[QUOTE="Tob, post: 14654088, member: 83412"] I'm aware of numerous plastic pan issues on Ford trucks, be it cracking, warpage, faulty plastic drain plugs, etc. That does raise an eyebrow and I believe a valid concern. Theoretically, the move to plastic makes sense. They save weight and should be able to withstand the same rigors as previous steel pans at least as far as Ford durability standards are concerned. When Ford went to a cast aluminum pan for use on the '13/'14 Trinity engines I immediately wondered about impact resistance/cracking. I can't think of a single instance being reported and paraded over the web (yet, anyway). The same goes for plastic which has had issues to date. Long term heat cycling, thermal shock from cold to hot, impact resistance levels, and the ability to maintain proper sealing qualities throughout, are conditions that Ford has supposedly conquered and as such enabled the use of a composite. That said, I'd much prefer a steel pan as it is a part I'd rather not have to ever worry about. Considering the small volume of these engines, Ford could have farmed out a really trick steel pan. Added cost? Yes. Added weight? Yes. Worth the piece of mind and increased durability potential? Absolutely. I suppose we won't see much more picking and choosing as the GT350 program was one that lived by a pretty clear performance metric. In essence, if a part doesn't add "performance" they didn't use it. And we're all aware of the concern Ford had with respect to weight so a plastic pan was a natural. In my view however, the weight savings isn't worth the potential i$$ues. Oil pans generally are not that heavy to begin with when made from steel. It looks as if typical weight savings are under 50% if the following chart means much. I forget which platform this related to (Fusion, etc) but I believe one could reasonably assume that related 5.2 engine components would see typical weight reductions respective of relative size. [ATTACH=full]623385[/ATTACH] I'm all for composite valve covers and it looks as if Ford has finally figured out how to make a plastic intake manifold that doesn't warp/leak (a debacle for many Ford owners previously). The difference is that these components are mounted atop the engine and as such not a concern with respect to impact [I]or the slip of a jack[/I]. I'm a dinosaur and like my connecting rods forged the old fashioned way as well as a steel oil pan. Ford has been legislated into a position that is taking them in a different direction and I credit them for their efforts. Evolve or die I suppose, which didn't play out too well for the dinosaur.:uh oh: [/QUOTE]
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