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The Terminator
Engine/Tuning
Detonation damage or another cause?
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<blockquote data-quote="SlowSVT" data-source="post: 14681312" data-attributes="member: 20202"><p>Using the term "lifted head" is a glorified way of saying someone blew a head gasket and is equating their engine to a blown nitro top fuel dragster. Those not only lift heads but can blow them clear off the block. I don't think our heads move more that .001" probably more like something measure in microns.</p><p></p><p>You didn't say anything about the piston melting where the gasket went south. Can you post a close-up pic of that area of the piston. You detonated which sent the cylinder pressure thru the roof blowing out the gasket but I'm surprised the damage was limited to only one cylinder.</p><p></p><p>You blew the bottom rad hose off because your water jacket was suddenly seeing cylinder pressure. Something tells me you were at 6 grand when the light turned green, you side stepped the clutch, tires bite, revs suddenly take a dip while boost goes thru the roof from the sudden load and rpm drop but the icing on the cake was that overenthusiastic impeller with #7 being the first casualty. I would take a closer look as the other 7 piston/rod assemblies to make sure nothing got "tweaked". Lots of time there is more damage then there appears only to find out on final assembly :nonono:</p></blockquote><p></p>
[QUOTE="SlowSVT, post: 14681312, member: 20202"] Using the term "lifted head" is a glorified way of saying someone blew a head gasket and is equating their engine to a blown nitro top fuel dragster. Those not only lift heads but can blow them clear off the block. I don't think our heads move more that .001" probably more like something measure in microns. You didn't say anything about the piston melting where the gasket went south. Can you post a close-up pic of that area of the piston. You detonated which sent the cylinder pressure thru the roof blowing out the gasket but I'm surprised the damage was limited to only one cylinder. You blew the bottom rad hose off because your water jacket was suddenly seeing cylinder pressure. Something tells me you were at 6 grand when the light turned green, you side stepped the clutch, tires bite, revs suddenly take a dip while boost goes thru the roof from the sudden load and rpm drop but the icing on the cake was that overenthusiastic impeller with #7 being the first casualty. I would take a closer look as the other 7 piston/rod assemblies to make sure nothing got "tweaked". Lots of time there is more damage then there appears only to find out on final assembly :nonono: [/QUOTE]
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Detonation damage or another cause?
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