Dark smoke under slight boost

[dkrugg24]

Ok so on my fresh build about 400 miles on it, I went out to runs some errands this morning and under a little boost about 5lbs or less (still trying to take it easy and break in the new motor) I was getting a dark color smoke out of the exhaust. Could this mean I'm running too rich? At idle if I rev it up jus a little it gets a light color smoke out of the exhaust sometimes. If you guys could give me some input on what this might be that would be greatly appreciated! Thanks in advance for the help!!

 

[jared98gst]

Prob running rich rolling into boost
Stock spec rebuild or what?

 

[Blue Talon Boy]

I'm gonna agree with Jared, you are running rich coming into boost. The light colored smoke, what does it smell like? Synthetic oil smoke is grey, where conventional oil smoke is blue.

 

[Dsmkauai]

Could you make a vid for us? Could be from running rich although your only running 750's but I guess with the chip you can't fine tune as much as you may need. It could be blow by but with 400 miles I hope not. It could be blow oil seal in your turbo, what's the condition of your turbo? Any shaft play? Where are you oiling it from? Ofh or head? On your break in what's your method? Have you retorqued the head studs yet? Usually recommended to do after 1 or 2 heat cycles. Is your bov recirculated like stock? What's your base fuel pressure set at?