I would have expected my IP to go long before the engine when it started making noise.
The engine has been eating a quart of coolant every month(cracked heads), getting worse, and about a week before this, I noticed a slight lower end knock(not a tap) develop. I knew it was gonna go soon, but not so violently. I did encourage the failure with my driving habits<--truth. Trust me I have been trying to break this thing for 9000 miles and it wasn't easy(she's a tough ol' girl). Call me reckless, I don't care. I love having reasons to build, and re-build.
Knowing this 506 block has already been bored 0.030" over, crank turned, undersized bearings(full rebuild in 2000 from previous owner); I wasn't hoping to salvage anything, would never reuse a turned crank, and I knew the cylinder heads are cracked and wouldn't reuse those. So basically, I haven't lost much.
Got enough spare 6.5 engine parts to fill one of my nice virgin 599 blocks, so that's the plan.
The first post was just a half hour after we towed the car back, so I haven't even got the car in the air yet. But you can see the hole in the pan and starter hanging from the block pretty easily.
I bet it's nasty in there. I will post pics of teardown and hopefully you guys can help me determine the failure point.
For diagnostic purposes: besides the coolant loss and slight knock, the car showed no signs of immenent failure before the actual event. All supporting systems were up to par(fuel supply, static timing, oil pressure, etc.)
my external Synapse 40mm wastegate has been dumping efficiently since dialed in. I did have difficulty with the 'gate when trying to control the added boost from meth(WMI) and how rapidly it climbs. I have always retuned the 'gate after every mod/change. could it have loved the cool air today, overcame the wastegate, and spiked to 20psi. Maybe. (fwiw the Synapse 'gate is most tuneable on the market)
I was pushing her hard when she failed. It involved a C5 and a stretch of highway. (shhh!)
