Campo 869 Posted March 3, 2015 Hi all, Just chasing some info on a replacement/upgrade fuel pump for my XF that will fit in the tank, does anyone have any suggestions? From what I've researched, the walbro 255 should fit, can anyone confirm? Thanks Share this post Link to post Share on other sites
tpak addict 1,909 Posted March 3, 2015 The EFI pump is pretty big compared to a AU/BA pump so it should be able to fit.... there is enough room I would think Share this post Link to post Share on other sites
gerg 10,871 Posted March 3, 2015 My brother's Supra got a similar upgrade recently and the Walbro was slightly smaller than the stock (Denso i think) pump and needed a bit of packing out. Denso often use licence-built Bosch stuff so although I've never done your exact swap, this might be a bit of a guide. Share this post Link to post Share on other sites
deankxf 20,316 Posted March 4, 2015 are you sure it needs upgrading? i used an XF EFi tank and pump with My lexus V8 and had it tested on a dyno at full noise to test that and a few other things.. kept up no issue and the lexus drinks fuel on full throttle for 4.0 litres also. 1 XTREME KARTS XF reacted to this Share this post Link to post Share on other sites
Campo 869 Posted March 4, 2015 My dyno guy said it may be an issue, just researching it in case i need to go buy one. Thanks guys Share this post Link to post Share on other sites
deankxf 20,316 Posted March 26, 2015 just to confirm, does the standard pump work fine at 160rwkw on a 4litre? think i remember it being fine from your thread(this could help others) Share this post Link to post Share on other sites
Campo 869 Posted March 26, 2015 It does yes. 1 deankxf reacted to this Share this post Link to post Share on other sites
xr6tjet 98 Posted March 27, 2015 All the pumps when you take it out you can modify a fuel pump to fit in there. Lucky for you they are much easier to modify. On my AU I had to cut the pump housing to fit the walbro 255. 1 Campo reacted to this Share this post Link to post Share on other sites