I was just wondering now. How much can you rev your engine when its cold. I think I heard thru the grape vine that you should'nt really do that too much.....
I wonder about this also, mostly because its freezing out side and it takes a 2000 v6 at least 20 minutes to warm all the way upJust curious.. What makes you wonder about this?? I wouldn't recommend revving a car up when cold but im not gonna lie ive done it before lol. Normally i wouldn't rev it up past 2000 rpms if it was cold though. When I start my car up I just let it do its thing till its warm, no need to rev it, but sometimes my car use to serge (I think that's what it's called) and fluctuate its idle when warming up
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It's not like you have to sit for 10 minutes, let it idle at least a minute or two before you begin driving. I typically start my car as soon as I get in that way it's warming up while I get situated. Still though, I don't get on it until my water temp is up to normal temperatures.Ya I kinda knew that you shouldnt rev it hard initially... let it warm up.. but I have no apprehensions in driving off after I start up. I am not going to sit and wait for the car to warm up before driving....
There was a kid at work that did this with his Accord, ALL THE TIME. Said it sounded cool and then races off like an angry bee. He paid the price and blew his engine. I warned him.Now, sitting there revving a freshly started car to the moon is just idiotic! I see ricers do this all the time. They'll start their cars from dead cold and bounce it off the limiter a few times.
I know basics also, one of the reasons as you said, is too lubricant and warm up, but the cold start as far as I know happens so the engine sensors can wake up, it starts at high rpm's so more fuel and air can go inside until all sensors are connected with the computer or whatever.. I believe in this actually because in my dad's Benz it takes less time to go from high to low rpm at start, modern sensors/computers wake up faster than previous/older modelsWhat's the science/mechanics behind that higher revving time before the engine levels off in RPM's?