Crazy2287 1,886 Posted October 28, 2013 Hello all, Wont keep you long on this one, just throwing it out there for some discussion. I'm intending to upgrade the fuel system in my EFI 4.1 ltr to flow enough fuel to handle up to 95% ethanol mix. Stock pump only flows 1.9LPM on a good day so need to step it up. Was originally going to swap to a carby tank and mount an external pump, then i saw this: http://www.diyautotune.com/catalog/walbro-gss342-255-lph-intank-fuel-pump-p-348.html I cant imagine it will be beyond me to mods this onto the factory pump assembly, but its still a concern. Will be a bonus having the pump in tank as opposed to the logistics behind mounting it externally. Has anyone upgraded the factory intank pump before? Share this post Link to post Share on other sites
Thom 6,650 Posted October 28, 2013 The main benefits of an in tank pump are, they are quieter and they keep cooler being submersed in fuel, as for modifying the stock setup I havent done it, although in my ute I did run a surge tank with an external walbro pump (cant even remember which one it was about 5 years ago) it worked well but the noise drove me nuts as the pump was mounted directly behind the driver Share this post Link to post Share on other sites
Ants 6,370 Posted October 28, 2013 My xd runs a frankenpump in tank pump and sender setup, so it can be done. Just make sure you use submersible fuel line for any rubber lines. Share this post Link to post Share on other sites
