[BrandonWRX]

For you fellas now going into winter-like weather (40s and below), how are you tunign to adjust? or are you just letting the ecu make the necessary adjustments ? i would think that any tune that is safe for summer weather would be even safer for the cold winter air.
I live in PA, can someone post their maps they have currently so I can compare mine? thanks

[davidm_sh]

Only one word of advice. First though you are pretty much correct in that it's safer to go from a hot/summer tune to a winter tune without any adjustments.

MY only piece of advice though would be to either detune it or easier just turn the boost down 2-3psi ... that way when summer comes you won't get depressed when you lose that extra cold weather power .

[WolfPlayer]

IMHO,

Summer is a good time for tuning timing. The hot weather will make the charge more detonation prone.

Winter is a good time for tuning fuel/boost because the cool weather will make you run higher loads (more air) and the cooler air will allow you to use less duty cycle.

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