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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Any Interests in Titanium Exhaust?
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<blockquote data-quote="Badgertits" data-source="post: 1377291" data-attributes="member: 31322"><p>Not uncommon to have TI exhaust on very high performance applications- Z06 Vettes sport a TI axleback from the factory. Street bike aftermarket exhaust options typically include TI. The weight savings is significant. For a comparison a stainless axle back on vette weighs around 45 lbs, the TI system is 26 lbs. </p><p></p><p>Akropovic is well known for their TI exhaust systems, the ones they make for corvette applications run around $4k, you better believe a TI system for a full size true dual exhaust setup like the Raptor would be a decent amount more given the extra material. Upside is fewer bends - TI doesn’t like to be bent, there are a few common alloys that work in exhaust applications but all have compromises- CP type “commercially pure” TI Alloy nearly 100% TI is easier to bend/form than some other versions, but is less resilient to extreme temps- Akro uses this type (grade commercial grade 2) on motorcycle header applications & I’m sure it’d be fine for catbacks but not great for headers or downpipes on a truck/car since they don’t get nearly as much cooling from the open air like in a street bike- there could be heat issues.</p><p></p><p>6-4 TI alloys (6% AL & 4%V) is a tougher TI Alloy more resident to extreme temps BUT is tougher to form/bend- the Alloy additions move the yield strength (when metal starts to bend) closer to its tensile strength (where metal will break) limit. So again- need to work Within TI’s mechanical limits to harness its strength/weight savings merits in auto applications. Because it needs vacuum welding & is difficult to work with also adds to the cost aside from the base material cost.</p><p></p><p>Best weight savings recipe for Raptor exhaust would probably be LT stainless headers/downpipes mated to TI exhaust straight back to the tips. I bet the whole setup would weigh 60% less than factory.</p></blockquote><p></p>
[QUOTE="Badgertits, post: 1377291, member: 31322"] Not uncommon to have TI exhaust on very high performance applications- Z06 Vettes sport a TI axleback from the factory. Street bike aftermarket exhaust options typically include TI. The weight savings is significant. For a comparison a stainless axle back on vette weighs around 45 lbs, the TI system is 26 lbs. Akropovic is well known for their TI exhaust systems, the ones they make for corvette applications run around $4k, you better believe a TI system for a full size true dual exhaust setup like the Raptor would be a decent amount more given the extra material. Upside is fewer bends - TI doesn’t like to be bent, there are a few common alloys that work in exhaust applications but all have compromises- CP type “commercially pure” TI Alloy nearly 100% TI is easier to bend/form than some other versions, but is less resilient to extreme temps- Akro uses this type (grade commercial grade 2) on motorcycle header applications & I’m sure it’d be fine for catbacks but not great for headers or downpipes on a truck/car since they don’t get nearly as much cooling from the open air like in a street bike- there could be heat issues. 6-4 TI alloys (6% AL & 4%V) is a tougher TI Alloy more resident to extreme temps BUT is tougher to form/bend- the Alloy additions move the yield strength (when metal starts to bend) closer to its tensile strength (where metal will break) limit. So again- need to work Within TI’s mechanical limits to harness its strength/weight savings merits in auto applications. Because it needs vacuum welding & is difficult to work with also adds to the cost aside from the base material cost. Best weight savings recipe for Raptor exhaust would probably be LT stainless headers/downpipes mated to TI exhaust straight back to the tips. I bet the whole setup would weigh 60% less than factory. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
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Any Interests in Titanium Exhaust?
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