Fuel pressure drops under load- Defective Walbro Fuel Pumps???
Oct 26, 2006 · The fuel pump is a Walbro 255LPH inline pump with a inline filter going to a aeroquip adjustable FPR. I spoke to the shop that did most of my install and they think the Fuel Pump is …
Walbro 255 Fuel pump very loud! - HybridZ
Apr 7, 2011 · The external pumps are always noisy due to the fact they aren't muffled by the tank and/or the fuel itself. I recently replaced my stock GM in-tank pump (running a '02 Z28 tank in my Z) with a …
Walbro or Quantum fuel pump - VOG Forum
Nov 4, 2018 · If you look at the Walbro or Quantum fuel pumps you can see they look similar to the stock OEM fuel pump in their mounting bracket. Once you pull the old one out you simply change out …
Wiring a Walbro Fuel Pump? - Fuel Delivery - HybridZ
Dec 16, 2009 · I just received my walbro 255 pump and on the pump it says "20 amp required". My question is , is it necessary? if yes, do I put the fuse on the negative or positive line? Also can I put …
Walboro Fuel pump whine.. - Fuel Delivery - HybridZ
Jun 18, 2016 · I ended up running a low pressure fuel pump to feed the walbro. It got significantly quieter, no more fuel starvation and I even measured the current draw for both pumps and the total …
External Walbro fuel pump issues, not priming right - HybridZ
Nov 18, 2012 · I had problems with walbro pumps loosing pressure at anything over 12lbs boost with 440cc injectors.They really arent designed to pull any vacuem at all and will fail from cavitation.The …
Walbro 255lph acting up, (noisy, fixed!) - Fuel Delivery - HybridZ
Mar 12, 2009 · I now have a Carter P4070 fuel pump back by the tank acting as a lift pump, pushing fuel up to the Walbro 255lph in the engine bay. So far, so good, I've got about 90 minutes on this set-up …
Does the fuel pump have to be mounted lower than the fuel tank?
Aug 25, 2014 · I run a single Walbro pump (currently, planning on going to a dual pump system), fed from the drain plug in the bottom of my 240Z tank. The fuel pump is mounted about where the …
bad FPR and or pump, low pressure when hot? - Fuel Delivery - HybridZ
Apr 14, 2014 · I had problems with walbro pumps when I had my turbo z.They will not pull fuel upwards and need to be mounted lower than the tank .If you study the oem fuel system you will notice that the …
Suitable 280Z Fuel Pump - S30 Series - 240z, 260z, 280z - HybridZ
Dec 5, 2013 · Wouldn't a hp fuel pump like the walbro 255 overrun the stock fpr? I'm actually going to install a wb 255, but will also be running an afpr and adjust to stock pressure.