Walbro F90000274 In-Tank Fuel Pump (Universal 450Lph High Pressure Version), 1 Pack

used on a low boost ls1 car and works well

I had an aeromotive 340 stealth pump and I was maxing out pump @540whp 110% injector dutycycle. 340 pump claims 600+whp but proved not to be the case in my setup. I was loosing fuel pressure pressure at high boost (23psi) only making 540whp on built h22 sleeve block GEN2 pte 6062 turbo w/ 1300ID injectors on sunoco leaded 110 fuel. I know that 1300cc injector max out around 650whp on 4cylinders, so I knew that I should not be running out of fuel at this horsepower so I change the pump first because it's much cheaper than changing out injectors. Just by changing out the fuel pump with the 450lph my injector duty cycle went down 25% after air fuel ratio got re-dial-in.

perfect part and fast shipping

Failed within a year.

Ordered pump at night and was driving again the next day.

It came wrapped in a plastic bag. Not a walbro box like in the pic. It doesn’t say walbro ok the actual pump 🤔

Fuel pump does not come with the sock filter that mounts to the bottom; major pita and technically makes it useless.

Order came quickly and was priced better than anyone else.