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Hi There,
What is good lambda value for DI engine with turbocharge at the stoichiometric & wide open throttle position?
Let say for fuel Octane 93 for example
Hello,
it’s a difficult one to say since all engine vary in combustion efficiency so will have different lambda values at maximum brake torque.
GDI engines do have higher combustion efficiency so tend to make power at slightly leaner AFR’s. For a quick sanity check search FIA GT3 BOP regulations as most cars are now balanced by target lambda so you should see representative values
