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hi there, i have a "00 rsfour stagea with the rb25NEO and i am trying to figure out wether i've blown my piston rings or turbo. i've searched but havent been able to find anything about this so if theres a thread about this please just send me a link or tell me where to look. now, i was driving along the freeway at around 130km/h and doing a few pulls and playing around with the gears and spooling the turbo up as it's my first turbo car and had only driven it from where i bought it so far. as i pulled of the freeway and stopped at an intersection without any warning the car just starts blowing smoke and ran rough as anything and just felt like it was stalling and starting up again so i limped it downhill to a carpark and shut it off. when i started it i held the revs around 3,000rpm and it blew smoke like crazy but didnt feel like it was misfiring at all, but as soon as the revs dropped below 2,500rpm it would completely drop like it was stalling and starting again and i couldnt bring the revs back up. i have the turbo off and just played around with it and there is a bit of play in the shaft and when i spin the the blades i can see oil coming down the blades from inside the turbo. so i really need help with this before i fork out money for a turbo or rings. any help is appreciated