The most efficient shape for maximum airflow is simply a straight, constant diameter pipe. Therefore, the ideal shape for an intake port would be one with no bends. Due to constraints by the size and shape of the engine, that is not a possibility. However, maximizing airflow through the engine head can still improve engine …
1. Transparency Make sure that the engine builder is willing to take the time and effort to fully explain the process and why he or she chose the parts that they did. Why is this important? This is your first line of defense from having an unskilled shop build your engine. If a builder is …
EJ25 FAILURE ANALYSIS Of all the failures that occur in a built engine, the cylinder wall failure is one of the least known/understood… Conventional wisdom in the Subaru community has told us that you need forged pistons, forged rods, bearings, and you can run 400+ whp on the road course with no issue. We’ve had …
