[dre99gsx]

Do you guys experience any starvation issues due to the single pump located on one side of the tank? Particularly, guys who road race and run supercharged setups?

Read about the E36 M3 guys installing dual pumps, one on each side of the fuel tank (obviously not possible on Z4) to alleviate this issue.

Also, does anyone know what type of fuel pump is used in Z4/Z4M, and the flow rate of the pump? I took a look at one saw a serial number with no other markings.