Ever since I've stroked/cammed/compressed my m20, its been giving off this unburned fuel smell at idle that is killing all nearby wildlife when I start it up.
I figured that it was running rich at idle due to the messed up airflow that my race-cam causes at low engine speeds. I got my piggyback, and lowered the fuel input until the engine was on the verge of dying, and the fuel smell still remained. I then played with a few combinations of fuel and spark advance/retard in hopes of reducing this phenomenon somewhat, with no success.
I hooked up my car to a 2-gas exhaust analyser, and it gave me decent CO reading (1.1%) and what can only be described as a raunchy HC reading (2750!) when the norm is supposed to be less than 200.
Where do I go from here?
I figured that it was running rich at idle due to the messed up airflow that my race-cam causes at low engine speeds. I got my piggyback, and lowered the fuel input until the engine was on the verge of dying, and the fuel smell still remained. I then played with a few combinations of fuel and spark advance/retard in hopes of reducing this phenomenon somewhat, with no success.
I hooked up my car to a 2-gas exhaust analyser, and it gave me decent CO reading (1.1%) and what can only be described as a raunchy HC reading (2750!) when the norm is supposed to be less than 200.
Where do I go from here?
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