Quote:
Originally Posted by PoorMans180SX
Out of curiosity, what were your main bearing clearances? When did it start knocking and what do you use the car for? Do you have a well-baffled oil pan?
A flywheel has very little to do with crank balance, which is part of the reason why there are so many weight options available.
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I'd have to find where I wrote down all the bearing clearances and rings gaps etc. But it was right in the middle of the oem allownaces. The car is used for drifting. It was a full rebuild with ross pistons and eagle rods. Oil pan is stock, I just rebuilt the oil pump. In all honesty I got the rods and pistons second hand. The bottom end they came out of was a "perfectly running" motor that had a 4 piece piston and 2 mismatched rod caps when I pulled it apart. I ordered 2 new parts. What I think happened is the rotating assembly was out of balance. I emailed Eagle directly about replacement rods and they never said anything about needing to send the set in to match them all up. I found out once the motor was back in the car. My fault for not doing any research.
Quote:
Originally Posted by mewantkouki
Flywheel of death is BS. I've put 35k on a white bunny setup collectively on three different cars. I vote oil starvation or pre-ignition...
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I figured. I don't think it was oil starvation because I did about 8 more laps of steady redline after the sound started and there isn't a single mark on that journal of the crank. I haven't taken the head off to see if there was detonation, although the car ran perfectly fine and I never heard any pinging.