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SVTPerformance's Chain of Restaurants
Road Side Pub
Has anyone destroyed a modular block from too much power?
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<blockquote data-quote="IUP99snake" data-source="post: 13409999" data-attributes="member: 7060"><p>I did a little more research into this and what I found was that the modular blocks typically don't fail in spectacular fashion like the pushrod blocks, but instead have less catastrophic problems that can rob power or cause other parts to fail. </p><p></p><p><a href="http://www.mustang50magazine.com/techarticles/m5lp_0803_frpp_mustang_block/viewall.html" target="_blank">FRPP Boss 5.0 Block - Cast-Iron Modular Block - 5.0 Mustangs & Super Fords Magazine</a></p><p></p><p><em>As power levels increase beyond [500 hp], aluminum blocks have a tendency to develop more flexibility or "walk" in the bottom end, which, among other things, adversely affects piston ring seal. When the rings aren't sealing, power is leaking away, as is durability. "At as low as 500 hp, you'll make more power with an iron-block than an aluminum block because the rings will seal and last longer,"</em> says FRPP's Jesse Kershaw.</p><p></p><p>According to this article, blocks with aftermarket sleeves can experience with the cylinder shape distorting. But I'm guessing this isn't as much of a problem with stock-bore blocks (and certainly not with the boss 5.0 block)</p><p></p><p><em>The Sutton High Performance crew out of Illinois ran a prototype Boss 5.0 iron-block in its e.t. and mph record-setting EFI Renegade S197 during the '07 NMRA season. Previously, they had campaigned both wet- and dry-sleeved 3.700-bore aluminum blocks. Some good reasons for the switch, according to Sutton engine-builder Jerry VanDerLinde, include: "Two different times we actually broke the main webbing out of the aluminum block. No matter which sleeve system we used, they would egg-shape or distort under the power we gave them. We'd then lose compression and power."</em></p></blockquote><p></p>
[QUOTE="IUP99snake, post: 13409999, member: 7060"] I did a little more research into this and what I found was that the modular blocks typically don't fail in spectacular fashion like the pushrod blocks, but instead have less catastrophic problems that can rob power or cause other parts to fail. [url=http://www.mustang50magazine.com/techarticles/m5lp_0803_frpp_mustang_block/viewall.html]FRPP Boss 5.0 Block - Cast-Iron Modular Block - 5.0 Mustangs & Super Fords Magazine[/url] [I]As power levels increase beyond [500 hp], aluminum blocks have a tendency to develop more flexibility or "walk" in the bottom end, which, among other things, adversely affects piston ring seal. When the rings aren't sealing, power is leaking away, as is durability. "At as low as 500 hp, you'll make more power with an iron-block than an aluminum block because the rings will seal and last longer,"[/I] says FRPP's Jesse Kershaw. According to this article, blocks with aftermarket sleeves can experience with the cylinder shape distorting. But I'm guessing this isn't as much of a problem with stock-bore blocks (and certainly not with the boss 5.0 block) [I]The Sutton High Performance crew out of Illinois ran a prototype Boss 5.0 iron-block in its e.t. and mph record-setting EFI Renegade S197 during the '07 NMRA season. Previously, they had campaigned both wet- and dry-sleeved 3.700-bore aluminum blocks. Some good reasons for the switch, according to Sutton engine-builder Jerry VanDerLinde, include: "Two different times we actually broke the main webbing out of the aluminum block. No matter which sleeve system we used, they would egg-shape or distort under the power we gave them. We'd then lose compression and power."[/I] [/QUOTE]
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Has anyone destroyed a modular block from too much power?
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