So I have a 91 turbo that starts to smoke after I drive it (after a short period of time). I start my car and everything seems normal idle and everything and its boosting normal. I drive about 5 to 10 minutes and I see smoke coming out of my engine bay (white smoke with a slight burning sent) so I popped the lid open and it seems that the smokes coming from beneath the heat shield of the turbo. I've checked my primary cat and turbo and everything looks ok. I was maybe thinking the turbo (internally) might be the problem . What do you guys think any ideas and suggestions would help... thanks in advance.