Been dialing in a street tune on my 11 Silverado for the last couple of weeks. Fixing issues, getting things right, so I could get it dialed in on the dyno without problems.
?then I started noticing I was having transmission issues. I have what I can best describe as converter creep, either at more aggressive throttle while driving or vaguely aggressive throttle from a stop. I suppose when I started adding spark and the power level started to improve, that the stock transmission didn?t appreciate that.
I suppose it?s somewhat my fault. The stock trans has almost 170k on it, and I have yet to make any adjustments to it, and I did put a good bit of additional power recently in front of it, going from a stock 5.3 to a cammed 6.0L.
I am planning on addressing this Monday. As of now, I?m looking at either a circle D or GMPP 6L80E with a ZL1 converter.
That being said, for the time being, driven reasonably, it still drives and shifts fine. Since I?ve not made any calibration changes, and everybody seems to remark about how awful the factory settings are, is there any ?must have? changes I should be looking to make, or maybe a better set of settings than those in the factory Silverado calibration?
I suppose I will have to wait until after I take care of the trans to make an appointment for the dyno.