What rpm do you not exceed on a cold engine?

[SFM]

I usually start driving after around 40 seconds from a cold start, and I try keeping the rpm below 2000 until I drive about 6 miles (10 km). I'm not sure if what I'm doing is too much. The weather is always around 77-95f (25-35c) if that matters. How do you drive your Stinger on a cold engine until it's warmed up?

 

[killinghall]

I would say 3,500 rpm for me. Engines are a lot more tolerant in this day and age.

Driving below 2,000 rpm is very benign and conservative, quite difficult during low gear changes?

Your car doesn't need to warm up for 40 seconds with that kind of weather temps. 10-12 seconds is all it takes for the rpm to stabilise slightly past 1k and you're good to go after that.

 

[MerlintheMad]

OP, that's pretty much my approach: I try to keep RPM under 2000 until the engine is up to full operating temperature; which usually means the oil temperature is c. 150. I feel comfortable giving her a good boost at that point. I won't Launch Control or WOT, though, until the oil temperature is operational (c. 200F)

 

[vipeboy2000]

being gentle is good, however if say you are trying to go up a hill or something while it's cold, high load, low rpm is worse for the motor than low load high rpm, (i'm not talking about redline, just higher than 1.5, 2k rpm) as higher rpm and low load means better oil pressure while low rpm high load can cause greater stress on the components with low oil pressure which could cause metal on metal contact causing more wear.

I'd say if you know you will encounter a higher load situation early on the drive , this might be case for a little longer warm up time before starting..

However at temps above 70 degrees the oil isn't that thick to begin with so not much to worry about.

 

[Oryan]

I just don't beat on it and drive conservatively and stay out of boost until the car is warmed up enough that the JB4 raises its targets to normal. Which fortunately isn't difficult since my first few minutes in the car, I have to get out of flat residential neighborhoods anyway.

 

[5tinger]

being gentle is good, however if say you are trying to go up a hill or something while it's cold, high load, low rpm is worse for the motor than low load high rpm, (i'm not talking about redline, just higher than 1.5, 2k rpm) as higher rpm and low load means better oil pressure while low rpm high load can cause greater stress on the components with low oil pressure which could cause metal on metal contact causing more wear.

I'd say if you know you will encounter a higher load situation early on the drive , this might be case for a little longer warm up time before starting..

However at temps above 70 degrees the oil isn't that thick to begin with so not much to worry about.

You cannot really lug an auto. It will shift gears depending on speed/load/throttle position etc even if your in manual mode.

 

[vipeboy2000]

You cannot really lug an auto. It will shift gears depending on speed/load/throttle position etc even if your in manual mode.

I wouldn't say quite lug but you can cause easier low speed pre ignition conditions due to low rpm high torque ..