This pan uses two pickups, so a divider is used to break the pan into two sections. This limits oil movement in the pan and also provides some additional rigidity.
For steel pans, a screen over the pickup is possible (top), but that won't work with aluminum pans. Instead, consider using a cone screen insert (bottom) where the suction lines plug into the pan to catch any large chunks of debris before they reach the pump.
Fast Times Fabrication produces everything for its pumps in-house except for the gears. To keep prices down, the company only manufactures two section widths. The pressure stage is a 1-inch body while scavenge stages use a 1.350-inch body.
Pump gears are expensive and difficult to make, so Fast Times purchases them from Melling and modifies them to suit its needs. They are the same gears used in Melling's internal oil pumps, which makes them more affordable-and they are the seven-tooth gears, which pump better than five-tooth gears.
One feature of quality oil pumps is the use of bearings in the midplates for the shafts. Cheaper pumps use bearings only in the ends. This allows the shaft to rub against the midplates until the holes become oblong, which introduces slop.
Here's a breakaway of the pressure bypass in the pressure stage of the pump. Once the oil reaches a certain pressure, it pushes against the needle valve hard enough to compress the spring. This allows the valve to slide into the body, and oil flows past through the bypass.