Dyno Tuning in hot or Cold?

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Old Aug 13, 2002 | 06:11 PM
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DC2R714's Avatar
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From: KOP, PA, USA
Default Dyno Tuning in hot or Cold?

I have a dyno session on Saturday and it is supposed to be 91 degrees. Should I hold off until it is not as hot out or is it better to tune when it is hot? Also for winter should I retune again or keep the tune conservative for all conditions? Any help is most appreciated. thanks guys.
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Old Aug 13, 2002 | 08:08 PM
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ion_four's Avatar
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From: Portland, OR
Default Re: Dyno Tuning in hot or Cold? (DC2R714)

hrm, good question...air is less dense (richer) but, also hotter...
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Old Aug 14, 2002 | 12:19 AM
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Default Re: Dyno Tuning in hot or Cold? (DC2R714)

Tune it hot. When it cools off, you KNOW that the car will run w/out detonation. If you tune it cold, it'll get hot again and when you're running hard, you'll detonate.
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Old Aug 14, 2002 | 02:08 AM
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Kamin's Avatar
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Default Re: Dyno Tuning in hot or Cold? (PyroVTEC)

Tune it hot. When it cools off, you KNOW that the car will run w/out detonation. If you tune it cold, it'll get hot again and when you're running hard, you'll detonate.
could detonate.

and youll make more power when its cold, but i agree with the hot idea.
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