Here's a bit of a stumper. VE+t t28. WG open pre turbo, perfect exhaust. Closed so exhaust goes down, white smoke out the tailpipe that smells sweet, typically b/w 1 and 3k rpm. coolant housing shot? no idea what causes this.
I don't think it has anything to do with the turbo.. check your spark plugs to see if any of them are kinda cleaner than others then it's prob a blown head gasket
Is this a stock untouched engine? How much boost u running?
For what it's worth, my old black car came with a T25 that had the water lines blocked off. It ran fine until I tried adding water lines later on. It blew coolant, so I plugged the water lines back off and kept boosting the piss out of it. Ran like a champ!
i do get the same thing sometimes, especially when my exhaust cut out is switched on. but usually it happens during the first 15-20 minutes starting the car, or in the morning....