Car is a R33 GTS-T with a HKS GT2835 Pro S kit, built motor 270rwkw on about 1.2bar. I bought the car about 3/4 weeks ago and it has always had a bit of engine noise at idle. I passed it off as it has forged pistons and thought it was them. Motor has'nt used any oil since ive had it.
Lately when i turn the car off it does'nt have that trade mark ball bearing turbo wind down, instead it has what sounds like crunchy bearings lol. Today as i just got it onto boost it made a scraping noise so i backed off. Then later in 3rd gave it half throttle and it could barely boost . Tried second and it was spooling ok but then that scrape noise again. Babied it home and now it's reasting.
Here's a vid
http://www.youtube.com/watch?v=GK__sdPQcz0...re=channel_page
It has shaft play up and down, back and forward.
How much would a new core be for this turbo?