What is "boost reference" and how is it achieved? I am just assuming it has to do with the relationship to the fuel system in regards to boost. Please correct me if I am wrong.
If you run a blow-thru setup, and want to run the stock mechanical fuel pump, you can run a small boost hose down to the atmosphere side of the pump's diaphragm, so it will "see" the boost and keep pumping accordingly. I like the blow-thru setups if it's not too much boost.
If you want to run a draw-thru setup, I was always told you need to modify the turbo with a "carbon seal" installed on the turbo's inlet impeller side.
