I have a 92 W-250 and I am getting ready to do some tweaking. I am going to put on a 16cm turbo housing and a kid I know that used to work on the Dodge Cummins at dealership told me they make a compressor wheel with one more vane and a different pitch that spools up almost as quickly as a waste gated turbo. Does anyone know anything about these other wheels especially a part number Rocky Mountain Truck here in Great Falls didn't know anything about them and his distributer didn't either.