Thread: Why cold start?
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Old 06-18-2022, 08:07 AM   #12
tomm.brz
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Quote:
Originally Posted by Tcoat View Post
The high idle, rich mixture, cold start process has existed since about the Model A. It just used to be done with a choke instead of a computer. Cold start high idle is about more than just heating up the cats. It is also about building oil pressure and reaching proper operating temperature more efficiently.

Yes


and the engine warms up faster by the friction of the pistons other than the combustion itself
High rpm help in this regard


I see people all the time trying to warm up the car letting it idle for many minutes and then lugging the engine changing gear under 2000rpm and then they use too much throttle to move because there is no torque there


My warm up is always: move right away, and change gear at at least 3000-3200 rpm with very light throttle
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