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If you can find a Federal turbo, and replace the entire cold side, that would get rid of the ARV completely. A rebuild would be a good thing as well. A kit is around $50 and it is not a hard job. The oil is probably going past the bearing into the cold side intake stream at idle. At idle, the oil pressure is greater than the boost pressure in the cold side, so oil gets past the worn out bearing and seal. At higher boost, the oil is kept out of the cold side by that pressure. I had a bad turbo in my Mitsubishi that would make a smoke cloud so big at idle (I had to turn off the engine at a stoplight to prevent said cloud), Batman would love to have it as an option on the Batmobile. At speed (boost), there was no more smoke than normal.
After you rebuild the turbo, your oil consumption and smoking will be gone. Your intake tract will be cleaner as well........Rich
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