Quote:
Originally Posted by Darin Morgan
I have covered this a couple time in previous posts. My opinion is, dont worry about it.
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Darin, I have been doing loaded accelerations and went on a Dyno last week, the LS3 is really awake. After Dyno I changed the oil at 500 miles.
Next day, started the car and letting it come up to temp, after about 4-5 minutes, heavy black smoke starts coming out the back and coats the car with dusty soot. I took her out and she performed well (so to speak) and haven't seen any more smoke. I am thinking maybe the Cat was clogged or something, haven't seen any oil. Ideas?
I have the Roto Fab CAI installed, and I am about to install American Racing Headers with High Flow Cats and a Borla Cat Back. I was planning on a tune at the same time---should I wait and drive it awhile before tuning?