So you upgraded your turbos, to get 500+WHP, but now your car is smoking a little bit, or a lot, well there are quite a few things it can be and your turbo is the least likely. On this N54 platform, its most likely the PCV system unless you have an issue with Oil pressure or drains.
This is from one of the biggest names in aftermarket turbos, and something we tell many customers. Also take note THE SIZE OF YOUR PCV LINES MATTERS. Going down in size from stock is not a good idea when upping your WHP levels. They suggest two -10's for 400WHP!!!!! People are now running 600+WHP on one -8, and one -10. I have been saying all along I feel this is too small. The 3/4 hose or -12 is the way to go on these big WHP ST cars. Anyways, I wont beat that dead horse, its a good read.
http://forcedperformance.tumblr.com/...-oil-is-coming
This is from one of the biggest names in aftermarket turbos, and something we tell many customers. Also take note THE SIZE OF YOUR PCV LINES MATTERS. Going down in size from stock is not a good idea when upping your WHP levels. They suggest two -10's for 400WHP!!!!! People are now running 600+WHP on one -8, and one -10. I have been saying all along I feel this is too small. The 3/4 hose or -12 is the way to go on these big WHP ST cars. Anyways, I wont beat that dead horse, its a good read.
http://forcedperformance.tumblr.com/...-oil-is-coming