Video: Blue Exhaust Smoke After Heavy Throttle

Recording the sound of my exhaust under heavy throttle and full boost, about 7psi currently, and discovered some blue smoke after letting off the throttle. What could this possibly be? Blow-by or maybe valve seals? Never noticed this before, GoPro came in handy!

When you let off the trottle it is creating a vacuum. You might be pulling oil past the rings. see about doing a compression test and leakdown test. they would at least help ytou narrow it down. For the hell of it chec your turbo for shaft play. it might be pushing oil past it's seals

Prolly Seals are getting old along with the guides being wore ( I imagine that this engine has a few miles on it).

Novaflash2002 wrote:

Prolly Seals are getting old along with the guides being wore ( I imagine that this engine has a few miles on it).

Just a few easy Highway miles

Yea I had that type of smoke on my original engine. I was just learning how to tune and probably ran it too lean a few times under boost. I did use engine restore and did help for a while, but in the end just trashed the engine. It is a good chance to build a bulletproof engine or upgrade it.