couple more questions?
"#2 how can i identify my fan unit in my f16? "
I would guess the fan unit is a Dynamax since that is what the Yellow aircraft jets seem to be designed around. Count the rotor blades. If there are 11 blades, it is definitely a Dynamax. If there are 9 blades, then it is likely to be a Ramtec fan. It is not likely that it is a BVM fan. The BVM rotor has 7 blades.