My_XR6_Turbo Member 282 Member For: 20y 9m 1d Posted 15/04/19 05:45 AM Share Posted 15/04/19 05:45 AM Hi guys, I'm installing a walbro 460 intank pump and I know I need to drill the return line out to 4.5mm. Is this the right one? Can anyone explain what the center one is for as it's blocked? Thanks, 1 Link to comment https://www.fordxr6turbo.com/forum/topic/94740-larger-return-hole/ Share on other sites More sharing options...
BeerTurbo Donating Members 241 Member For: 6y 11m 24d Posted 15/04/19 07:30 AM Share Posted 15/04/19 07:30 AM is this part of the fuel tank setup? I was under the impression you needed to drill out the return hole in the fuel pressure regulator itself, or purchase the bolt in GFB one when installing high flow pumps. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/94740-larger-return-hole/#findComment-1681633 Share on other sites More sharing options...
BarraT Member 34 Member For: 5y 3m 13d Posted 01/04/24 10:29 AM Share Posted 01/04/24 10:29 AM On 15/04/2019 at 5:45 AM, My_XR6_Turbo said: Hi guys, I'm installing a walbro 460 intank pump and I know I need to drill the return line out to 4.5mm. Is this the right one? Can anyone explain what the center one is for as it's blocked? Thanks, Expand The centre 1 is used to hold it into the bottom of the pot, ( the locking pin ), I drilled mine out to 4mm, certainly quietened down the pump audibly, AFR at idle settled from low 12s to stoich, so it made a difference, though as suggested by BEERTURBO, just buy the GFB drop in reg Link to comment https://www.fordxr6turbo.com/forum/topic/94740-larger-return-hole/#findComment-1722611 Share on other sites More sharing options...
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