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  1. ICEaddict

    Piston broken in half(top-bottom)

    Also did you measure the cylinder bore diameter and out-of-round? I can't see the thrust surfaces of the cylinder well in the block pic. Are they scuffed at the bottom as bad as the piston is near the second ring land? The most difficult task with cylinder honing is preventing taper in the...
  2. ICEaddict

    Piston broken in half(top-bottom)

    I have approx. 10 years in building engine's as a full time career at 5 different facilities covering oem rebuilds to 1000Hp forced induction applications. This would be the first time I've seen an over-tqd rod bolt cause a chain of events to damage a piston like that. I am curious how close...
  3. ICEaddict

    Auto ignition

    The 'burn rate' of gasoline is so much higher than diesel, the engine RPM would have to be at such an impractical level of operation to replicate the end of combustion points that provide the best efficiency. Resulting in a static compression ratio that would not fire at reasonable RPM levels.
  4. ICEaddict

    Valve spring pressure and boost

    I am currently implementing a GM LDK block with LHU ECM and aftermarket turbocharger compounded with a high pressure roots blower with dual intercoolers. This thread relates to my current issue of determining correct spring pressure. Test RPM will be at 3000, but boost pressures will be well...

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