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FA24

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11K views 17 replies 8 participants last post by  219673  
Reliability and power handling are not the same thing.

Reliability can be quantified by several metrics. Here are the most common metrics:

  • Mean Time before Failure (MTBF), plotted with standard deviation
  • Median cost of failure (including standard deviations)
  • 3 year cumulative cost of ownership


The population size and length of time since introduction are important for good metrics. The FA24 hasn't been around very long and so we are only starting to learn about the long-term reliability.

Once again, power handling and reliability are NOT the same thing. Reliability generally assumes the vehicle is stock with OEM parts.
 
I suspect you'd be hard pressed to provide me evidence of a truly "unreliable" engine produced in the last 15 years.

The question these days is... is the engine capable of surviving the abuse and neglect of the owner?
 
FA24 is a far more modern engine, with lessons learned from the FA20. The march of progress is more turbid for small manufacturers like Subaru. Expect problems and solutions for all 3 engines.

The EJ engine block would have been designed when an i386 was running the FEA.