How do I cure a lean condition?

[LtNoogie]

Really? So the dyno guy was correct? Where would one find the optimum a/f readings for engines under boost?

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Originally Posted by LtNoogie

Really? So the dyno guy was correct? Where would one find the optimum a/f readings for engines under boost?

There is a balance, and the key is really exhaust gas temperature, or EGT.

You can run a lean AFR, with retarted timing, and get acceptable EGT values.

You can run a richer AFR, with advanced timing and get the same acceptable EGT values.

The proper AFR for a forced induction car is debateable, but generally in the 11:1 -12:1 range is acceptable depending on type of forced induction and boost level.

I don't think blitz would send you out into the world with a tune that will pop the motor, but just be aware, the tune is far from its full potential.