Fuel pump Bosch or WALBRO

I've never had issues with genuine walbro pumps, took me well over 500hp reliably on several vehicles.

If you\u2019re keeping this thing it might be worthwhile to drop the extra on the GM/Bosch/ or Delphi.

Got my Walbro Hellcat 525LPH in last night, there's definitely been a noticeable change in how the car behaves. On the FPR side, I had it set to 3bar with my stock pump in, the 525 instantly shot it to over 60psi with the same settings.

Walbro 535 LPFP fitted in the stock bucket with the factory venturi system.

Walbro 400lph is what I ended up going with on my 76mm turbo car, with 60# injectors, was perfect for over 25k miles at 15psi making 750whp. I installed the Walbro in the stock bucket, modded.

I used this one for my 02/1996 xj. The Delphi pump it comes with died after 2 weeks so I swapped it with a Bosch pump. It’s been working no problem for 2 years now

I have them on two of my cars. I like the engine bay install the best. easier to do and quieter. The under the car version sounds like a busted chevy fuel pump sometimes. But after I upgraded the fuel filter the noise was reduced by half.

I had my inline pump next to the fuel filter and it was way too noisy, ended up moving it to the engine compartment and fitted it inside some 3" tubing with insulation around it, just a slight whine at idle can be heard and none as you are driving

I personally wish I went with a non walboro option for what it's worth. Just annoying loud on low tank.

This is my second Bosch 044 fuel pump that I've been through within a year time span. FYI when I was running a Walbro fuel pump, it never died on me. I decided to switch to the Bosch 044 because I've read that it was a lot more reliable than the Walbro. My first Bosch 044 fuel pump started going bad when I couldn't hear the buzzing noise. I got them from USRT and they suggested that I bang it with a hammer. Well I did and it started buzzing again. That worked for a little bit, soon after it stopped buzzing even after I hit it with a hammer. Connected jumper wires straight from the +/- side of battery and nothing. My conclusion, it's dead or fried. My second Bosch 044 is starting to do the same.