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2020+ Shelby GT500 Mustang
First 2018 Shelby GT500 Spy Video
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<blockquote data-quote="93 347 Cobra" data-source="post: 15408098" data-attributes="member: 7047"><p>It's not the 6.2 that's surprising, it's the "new displacement" of the 6.2 that's surprising. We haven't seen any announcement of a new displacement V8 for Super Duty so that in and of itself is surprising and newsworthy. Even if it's just for Super Duty.</p><p></p><p>The whole crux of the reasoning for a 6.2 derivative for the next-gen GT500 is based upon the info that surfaced during Trinity's development. 1) High piston speeds due to long stroke 2) long stroke due to bore limitations of 100mm bore spacing 3) exhaust valve temps being at the edge of the envelope 4) the need for more power and the corresponding increase in heat making it even more difficult to cool the exhaust valves for long-term durability (valve tuliping)</p><p></p><p>115-mm bore spacing solves all of those problems and would enable a destroked/shorter-deck 6.2 derivative to have a deck-height of right around 9-inches give or take. I think 5.8 is a magic number for Ford fans so that would be my guess. 105-mm bore X 84-mm stroke yields 355.1 cubes/5.8 liters. Trinity had a 93.5-mm bore on 100-mm bore spacing so going from that very tight 6.5-mm to 10-mm or more between cylinders is a huge % increase. The business case for putting this 5.8 Boss (formerly Hurricane) in the GT500 is strengthened by also using the same architecture and displacement for Super Duty.</p></blockquote><p></p>
[QUOTE="93 347 Cobra, post: 15408098, member: 7047"] It's not the 6.2 that's surprising, it's the "new displacement" of the 6.2 that's surprising. We haven't seen any announcement of a new displacement V8 for Super Duty so that in and of itself is surprising and newsworthy. Even if it's just for Super Duty. The whole crux of the reasoning for a 6.2 derivative for the next-gen GT500 is based upon the info that surfaced during Trinity's development. 1) High piston speeds due to long stroke 2) long stroke due to bore limitations of 100mm bore spacing 3) exhaust valve temps being at the edge of the envelope 4) the need for more power and the corresponding increase in heat making it even more difficult to cool the exhaust valves for long-term durability (valve tuliping) 115-mm bore spacing solves all of those problems and would enable a destroked/shorter-deck 6.2 derivative to have a deck-height of right around 9-inches give or take. I think 5.8 is a magic number for Ford fans so that would be my guess. 105-mm bore X 84-mm stroke yields 355.1 cubes/5.8 liters. Trinity had a 93.5-mm bore on 100-mm bore spacing so going from that very tight 6.5-mm to 10-mm or more between cylinders is a huge % increase. The business case for putting this 5.8 Boss (formerly Hurricane) in the GT500 is strengthened by also using the same architecture and displacement for Super Duty. [/QUOTE]
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