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The Terminator
Engine/Tuning
Question about my block
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<blockquote data-quote="KEVINS" data-source="post: 15613140" data-attributes="member: 158789"><p>I concur that the Cobra Irons won't last at 1000hp. I learned this about a month ago just before my dyno day where I had plans to make 900hp on turbos.</p><p>Many people posted they were cracking cylinders at 600-700hp but these guys were running KB blowers which puts a lot more stress on the cranks and can build a lot more cylinder pressure at low RPM.</p><p>I was told that the Cobra iron blocks only have about 1/8" wall thickness to begin with so boring them out only makes them thinner.</p><p></p><p>For my build the overall consensus was that being a turbo car it would hold up to 900hp but it would be on borrowed time.</p><p></p><p>My TT 2V eventually made 902hp/820tq through the muffs and through a 4R70 but it's definitely on borrowed time at this level so I'm collecting parts to build a new short block.</p><p></p><p>As mentioned get a Teksid block or an Aviator block which have a lot more support around the cylinders for a lot more hp.</p><p></p><p>ks</p></blockquote><p></p>
[QUOTE="KEVINS, post: 15613140, member: 158789"] I concur that the Cobra Irons won't last at 1000hp. I learned this about a month ago just before my dyno day where I had plans to make 900hp on turbos. Many people posted they were cracking cylinders at 600-700hp but these guys were running KB blowers which puts a lot more stress on the cranks and can build a lot more cylinder pressure at low RPM. I was told that the Cobra iron blocks only have about 1/8" wall thickness to begin with so boring them out only makes them thinner. For my build the overall consensus was that being a turbo car it would hold up to 900hp but it would be on borrowed time. My TT 2V eventually made 902hp/820tq through the muffs and through a 4R70 but it's definitely on borrowed time at this level so I'm collecting parts to build a new short block. As mentioned get a Teksid block or an Aviator block which have a lot more support around the cylinders for a lot more hp. ks [/QUOTE]
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Question about my block
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