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The Terminator
Engine/Tuning
Cast iron block vs. Aluminum block
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<blockquote data-quote="Detroit_Doc" data-source="post: 1711652" data-attributes="member: 23458"><p>Anyone that thinks a well engineer aluminum block can't withstand massive amounts of HP needs only to look at formula 1. I only bring this up because someone mentioned NASCAR. And well, if you compare NASCAR iron blocks to Formula 1 aluminum blocks, that would be like comparing cavemen to spacemen.</p><p></p><p>I used to race a formula car (albiet a poor mans formula car) in the SCCA. I looked at lot of research into chassis building. The most intriguing thing I found was that a 2" .003 DOM tube is stronger than a 1" .006 DOM tube. I don't pretend to understand the physics, but the jist is that the .003" tubes weight less than the .006" tubes. Because the lighter tube can have a wider diameter, that makes them stronger in tension and compression. So as long as the engineer ensure the tube will only be put in tension and compression, they can use the lighter tubing and enjoy both a weight savings and strenght increase. If the tube is put into other stresses such as sheer, then all bets are off. </p><p></p><p>So a lighter aluminum block may resist stess better due to wider walls under the same principle.</p></blockquote><p></p>
[QUOTE="Detroit_Doc, post: 1711652, member: 23458"] Anyone that thinks a well engineer aluminum block can't withstand massive amounts of HP needs only to look at formula 1. I only bring this up because someone mentioned NASCAR. And well, if you compare NASCAR iron blocks to Formula 1 aluminum blocks, that would be like comparing cavemen to spacemen. I used to race a formula car (albiet a poor mans formula car) in the SCCA. I looked at lot of research into chassis building. The most intriguing thing I found was that a 2" .003 DOM tube is stronger than a 1" .006 DOM tube. I don't pretend to understand the physics, but the jist is that the .003" tubes weight less than the .006" tubes. Because the lighter tube can have a wider diameter, that makes them stronger in tension and compression. So as long as the engineer ensure the tube will only be put in tension and compression, they can use the lighter tubing and enjoy both a weight savings and strenght increase. If the tube is put into other stresses such as sheer, then all bets are off. So a lighter aluminum block may resist stess better due to wider walls under the same principle. [/QUOTE]
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Cast iron block vs. Aluminum block
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