turbo LS/VTEC with sc61 when at low idle about 1000 rpm no smoke. When at 2000 smoke comes out only when idleing go into boost no smoke, oil return line is good no restrictions. think its the turbo or maybe valve seals.

 

could be your piston rings also

 

but if it were rings wouldnt it be all the time?

 

On my CX with 300k it only reallly starts to smoke after 2500 rpm,

 

it only does it when it idles at 2000rpm not on accel. or decel