How long to smoke tri-tip
Smoke tri-tip at 225°F for about 45 to 90 minutes, and pull at 115°F, off the smoker, then sear to 130 to 135°F. That is for tri-tip (whole, reverse seared), at the heat shown; the calculator above has each heat a source gives a time for.
Rest 10 to 15 minutes before slicing or pulling. USDA counts tri-tip safe at 145°F with a 3 minute rest; a thermometer in the thickest part tells you more than the clock.

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Questions
What temperature do you pull tri-tip at?
115°F, off the smoker, then sear to 130 to 135°F. Cook to that temperature rather than to the clock.
How long should tri-tip rest?
10 to 15 minutes, loosely covered or wrapped, before slicing or pulling.
Should I cook to time or to temperature?
To temperature. The time tells you when to start and when to start checking; the meat is ready when the thickest part reaches its pull temperature.
Does my smoker change the time?
Not at the same temperature, as far as any cooker maker or test says. What changes is how steady it holds: keep the lid or door shut and the fire even, and the time holds too.




