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Hey guys,in the tuning courses, they recommend putting the engine into a light load area on the map and intentionally inducing knock to identify the knock frequency.
I’m wondering — is it possible to estimate the knock frequency at idle instead, and then refine the knock detection or threshold later on?
I’m asking because I’m currently road tuning and finding it difficult to hold the engine in steady state and inducing knock and listen at the same time.For reference, I’m using a Haltech R3 on an EJ20.
Any input would be appreciated.
It would be very difficult to initiate knock at idle because of very small engine load and small transmission load. Knock occurs when pressure and temperature in cylinder are getting too high for fuel octane number in use- it's very unlikely to meet these criteria at idle...
