Walbro GSL 392

Walbro GSL 392 Fuel pump

Flow at 13.5V
255L/H at 3 bar
235L/H at 4 bar
210L/H at 5 bar

Inlet connection: M10 x 1.0
Outlet connection: M10 x 1.0
Diameter: 39mm
Weight, without nipples: 460grams
Total length: 160mm

500-550 hp on petrol
400-450 hp on E85

Can be mounted both inside and outside the tank.

Max engine power Turbo
Petrol: 620hp
Ethanol: 540hp

Max Engine Power N/A
Petrol: 
Ethanol: 

Please note that test environment versus practical use can have widely varying conditions depending on peripheral equipment and other technical factors. However, this is very good information on what you can expect from the fuel pump and basic information when choosing other components in the fuel system such as fuel spreader, fuel pressure regulator and fuel filter.

A new fuel pump has a break-in period where it "breaks in" to finally flow properly.

This EFI / high pressure fuel pump can also be used for carburetors if the correct fuel pressure regulator is used.