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2013-14 Shelby GT500
Who's putting miles on their 13-14
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<blockquote data-quote="Handlebar Moustache" data-source="post: 16117603" data-attributes="member: 187093"><p>This article says it's more durable than conventional bores:</p><p></p><p><a href="http://www.mustangandfords.com/how-to/engine/1601-shelby-block-tech-fords-plasma-transfer-wire-arc/" target="_blank">Shelby Block Tech: Ford’s Plasma Transfer Wire Arc</a></p><p></p><p>"... according to Tim Beyer, the cylinder walls are also extremely durable. “You can’t bore a block with the PTWA the way you would bore a conventional block, because the coating is only the thickness of the human hair,” he said. “There’s no material to overbore, but the coating is tough and simply doesn’t wear out. We’ve gone over 200,000 miles in durability testing and the block still has the cross hatching.”</p><p></p><p>“The PTWA really holds up,” added Palazzolo. “What we laid down originally is often better than what you’d get with a new hone. When we rebuild we’ve not seen bores we’ve had to fix up. Cast iron is softer and you’ll benefit from honing to achieve fresh cross-hatching, but with this material the cross-hatching is still there. The material contains a very small micro porosity so there’s oil retention built into the material. If you haven’t failed a piston and/or gauged things up, the bore is suitable for rebuild just the way it is. It is a thin coating, so if you fail a piston and score the cylinder wall, you will want to start fresh with a new block,” he explained. “When you design an engine with 0.020-inch or larger overbore capability you’re carrying that material around the life of the engine and you may never use it.” "</p></blockquote><p></p>
[QUOTE="Handlebar Moustache, post: 16117603, member: 187093"] This article says it's more durable than conventional bores: [URL="http://www.mustangandfords.com/how-to/engine/1601-shelby-block-tech-fords-plasma-transfer-wire-arc/"]Shelby Block Tech: Ford’s Plasma Transfer Wire Arc[/URL] "... according to Tim Beyer, the cylinder walls are also extremely durable. “You can’t bore a block with the PTWA the way you would bore a conventional block, because the coating is only the thickness of the human hair,” he said. “There’s no material to overbore, but the coating is tough and simply doesn’t wear out. We’ve gone over 200,000 miles in durability testing and the block still has the cross hatching.” “The PTWA really holds up,” added Palazzolo. “What we laid down originally is often better than what you’d get with a new hone. When we rebuild we’ve not seen bores we’ve had to fix up. Cast iron is softer and you’ll benefit from honing to achieve fresh cross-hatching, but with this material the cross-hatching is still there. The material contains a very small micro porosity so there’s oil retention built into the material. If you haven’t failed a piston and/or gauged things up, the bore is suitable for rebuild just the way it is. It is a thin coating, so if you fail a piston and score the cylinder wall, you will want to start fresh with a new block,” he explained. “When you design an engine with 0.020-inch or larger overbore capability you’re carrying that material around the life of the engine and you may never use it.” " [/QUOTE]
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Who's putting miles on their 13-14
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