It's light blue and I have an oil catch can I didn't drive it much this year since I got a tune.. was thinking I shld buy a new turbo lol

 

NA engines do not have the same pcv systems as would a Turbo motor (factory),resulting in massive amounts of positive crank pressure. spend. $20 on a knock off oil catch can.

From what you said, I would do a compression test.
I had blown ring lands on 2 pistons and it drive fine on cold but the minute it would reach running temp and the oil thinned out I would see blow by( resulting in catch can smoking).
If you can get a pen light and shine it down your spark plug holes to see the color of the tops of the pistons. From experience a black piston could mean your combusting oil meaning oil is coming up past the rings and being combusted with air/fuel. Since f20's have forged pistons you could be seeing the early symptoms of ring/land failure
With my motor the problem happened immediately because I had cast pistons which become like glass in a rock house once you start throwing boost at it.
$30 at auto zone for a compression tester

 

Bump up to the top, because I'm having the same/similar issue. My question is this... would installing a catch can theoretically help this issue? I'm running a stock Greddy system, no catch can, and Valvoline Synthetic 10W30. The turbo has less than 15K miles on it, and didn't have bad shaft play as of about 2000mi ago when it was last checked. I'm thinking of switching to Amsoil 10W40 and installing a catch can, and seeing if that fixes everything.

Sometimes I drive all day and don't have the smoking at idle, especially if it is a cool day. On warmer days it seems that after driving for awhile, when I'm idling at a stoplight or parking, I might get that plume of bluish/gray smoke. It doesn't happen all the time and it is unpredictable. I'm making good power and get full boost.

 

This is my first time turbo'ing an S2000 and I had a simular issue. After talking to a few people they pointed out the position of the F20 motor and how it sits in the car (tilted towards the passenger side). I tapped my *oil pan* for the oil return but the turbo wasn't draining properly causing smoke when the car was idling at a standstill. It didn't smoke while I drove the car.

Since then, I've tapped into the girdle for my oil return and haven't had a problem since.

 

^^ Hmm, that's another suggestion that may work. I happen to have a tapped oil pan too, so maybe even before the catch can, I'll try a different oil return setup. Same with you and the OP, I'm only getting smoke at idle, and then only sometimes.

 

I haven't had a problem since my last post. I guess it was just the spirited driving that caused the oil to be sucked into the pcv. I'm working on getting a catch can to completely fix the problem, but driving the car nice and easy helps a lot.

Btw, the oil drain is tapped into the girdle, not the bottom of the pan, so oil backup is not likely. This was the reason my installer did it that way.