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I was dressed down once while warming up a rental car in the winter. |
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+1 on what the German boys wrote in my 89 owners manual,..get to driving (lightly) soon after cranking her up.....no long term idling. 20-30 minutes of idling? no frikin' way. I can get the cabin heat up MUCH quicker when I'm driving her,..it doesn't take long at all. My regiment is much like Spuggy's. Best, Doyle |
different strokes for different folks
during cold winters I start and keep rpms as low as possible till the 90-100#'s low rpms oil psi starts to come down. I also start with clutch engaged so I'm not loading engine thrust bearing without oil psi. Swepco is not an issue at 20F doing this. Then I raise rpms till cylinder head temps [CHT] raises to 175F degrees. Manual throttle is a great install. If at a warm idle I'll raise rpms to 1,200-1,500 to keep alternator and cam lubrication ok. The act of glazing cold start spark plug carbon is a consideration with carbs. Don't whack the throttle when cold, gently raise rpms. FI is more forgiving. |
Perhaps worst of all is you commit the typical mistake of warming up the engine and taking off like a bat out of hell when the rest of your drivetrain is " cold".
A lot of us think about bringing the engine up to temp but never think twice about the tranny for example. |
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The advice -- given by the engineers who created the car -- is based on the simple fact that the 911 motor will take almost forever to warm up at idle, not to mention the damage from idling a cold motor. That does not mean that you cannot get away with it. But if you are buying a used 911, try to avoid buying one from a guy who does this sort of thing to his car. |
I'm kind of between the rock & the hard spot on this subject.
Mine is an AX only car, not street legal and putting around on slicks (not R specs)on access roads is a good way to get flat....those are usually crudier than city streets. There are no "warm up laps" at AX. I have sat in the car idling with a blips, elevated revs, yada.....this takes about 10 minutes just to get the temp gauge off the peg (50C), much less to operating temp. I have tried throwing a towel over the air intake grill...leaving some space for air flow..... and this seems to work most quickly....but doing this seems wrong somehow. Probably not as wrong as beating on a cold engine, tho. Comments? |
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How much do they weigh?:D A portable one would seem impractical in the staging lanes....not to mention the ribbing I would get....but I'll think on it. |
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