Temperature difference ignition considerations

[Razathorn]

I experienced some pretty reliable NEW knock on my supercharged rsx in the 4-5k rpm range when at around 5psi in 3rd gear (7psi pulley). It seemed like pulling back some ignition would have cured it, but I think it is probably just brought on by the cold weather. The IAT was 37 at the time.

As the air gets denser with the cold, the same amount of boost/volume of air going through the motor at that point should be much more rich in o2, so much in fact that it would almost be the equivilant of running more boost, for which the map sensor wouldn't see, and the ignition would be a bit hot for. Does this sound right?

I'm considering checking out the IAT compensation table and seeing what kind of factor the fuel is being added at and try to calculate how much 'summer time boost' I would be seeing to try and determine if / how much ignition I should pull out for the winter months.

Any advice / thoughts from hondata on this (or any experienced tuners) would be great.

Wayne