I had the mustang dynoed yesterday.
It put down 248.8 HP at the wheels and 296.7 TQ. I was pretty happy with the power for an N/A motor.
Problem is I see some black smoke at higher RPM which I believe it is running rich and using the stock computer tuning. What scared me though was I was seeing blue smoke (oil burning) as soon as the dyno operator let off the gas and the engine was spinning down on the dyno. There was a pretty significant amount of smoke. on the 2nd and 3rd pull it was same thing. It continued with some blue smoke idling for 20-30 seconds or so. The car has 96k miles on it and has not been driven easy.
Are the rings worn?
Someone said it could be a bad PCV valve so I replaced that today. But I have no way to tell if I have the same problem.
HELP?!
It put down 248.8 HP at the wheels and 296.7 TQ. I was pretty happy with the power for an N/A motor.
Problem is I see some black smoke at higher RPM which I believe it is running rich and using the stock computer tuning. What scared me though was I was seeing blue smoke (oil burning) as soon as the dyno operator let off the gas and the engine was spinning down on the dyno. There was a pretty significant amount of smoke. on the 2nd and 3rd pull it was same thing. It continued with some blue smoke idling for 20-30 seconds or so. The car has 96k miles on it and has not been driven easy.
Are the rings worn?
Someone said it could be a bad PCV valve so I replaced that today. But I have no way to tell if I have the same problem.
HELP?!