Hey all,

My 3dr has a strange smoking issue. When i bought the car there was a bit of condensation smoke at idle and it was using water, whipped out the plugs and cylinder 1 was wet. The car had a cometic head gasket and ARP studs, so before stripping it apart i tried to re torque the studs. Did so and went for a road test, all seemed well on a motorway run but about 25 mins in i was at some lights and the car started smoking like a train, like someone had a smoke machine at the exhaust. It smelt like oil. So i thought id disturbed the headgasket some more or overfilled the oil when i changed it.

I replaced the headgasket for a group A and normal bolts. Its not using coolant anymore but the smoking still happens..... Sometimes.

I can pull up to the lights and it will smoke like a train, so bad that its embarrassing, engulfs the car, but it doesnt do it all the time.

I will be driving normally pull up to the lights, it will start smoking as im idling then plumes appear, i drive off and it clears up. Next set of lights it wont happen, i can drive it home and leave it idling and nothing, rev it up on the spot and nothing comes out.

Has anyone experienced these intermittent plumes of smoke? Or any ideas what it could be? Cold start nothing, driving and under boost nothing, it only happens when its up to temp a bit or at temp.

car is quite standard with standard boost and not driven hard
group a breather that is breathing out of the block on the exhaust side and returns to the sump plug, vents to atmosphere
after market fuel pressure reg running 4 bar
Stage 1 ecu
I just changed the oil again and put about 3.25L in