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Old Jun 1, 2010 | 03:59 PM
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idle rpm's

what's a normal idle around for a 390?
 
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Old Jun 1, 2010 | 07:57 PM
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jowilker
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Out of gear 600 is about right.




John
 
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Old Jun 1, 2010 | 09:25 PM
  #3  
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How long would it take to idle down to there from a cold start of a few weeks? This one sounds like it's running around a grand but no tach so i'm not sure.
 
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Old Jun 2, 2010 | 05:06 AM
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manual or auto? auto will need to be a couple hundred rpms higher to maintain 600 at traffic stop.




John
 
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Old Jun 2, 2010 | 09:32 AM
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It's a manual. the truck i'm looking at still, idled high the whole time it was running, but that was only for a few minutes, and the temp outside was around 70 or so if that really changes anything.
 
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