Quote:
Originally Posted by Lakitu
Can you still blow an engine driving under 4.5K RPMs while boosted (non-spirited daily driving), or is blowing an engine entirely because people are redlining boosted cars that haven't had the bottom rebuilt?
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My thought process is that torque breaks parts as one type of force on a motor. Rpms can break parts because inertial forces dramatically increase with rpms. Oil starvation will lead to parts breaking. Heat can cause parts to break, oil to thin. Timing problems with air and fuel or timing belt slips can lead to stuff breaking. I can go on, but everything is exacerbated with more power and with boost or more boost and with pushing a motor beyond its OEM manufacturing.
At low rpms engine load and torque can still be high, heat can be higher because the engine isn’t circulating as well or efficiently, and oil pressure can be lower on rpm dependent pumps, so bearings can fail easier, maybe.