My friend just put in a turbo on his D16. After about a week it is blowing faint blue exhaust fumes. He hasn't touched the timing yet so i don't know if it is that or that he already fried his piston rings partially. He is running at 6-7 spi with a Tial wastgate and blow off valve. The turbo is a t3/t4 hybrid don't know what brand though. So any help would be great since he goes through about a quart of oil every 100 miles.