WPN270 Member 78 Member For: 16y 5m 3d Gender: Male Location: south west sydney, n.s.w Posted 20/06/14 08:47 AM Share Posted 20/06/14 08:47 AM Hey, I currently have a walbro 225l in tank pump running flex (street) & e85 (race tune) in my fg turbo (small turbo running 360rwkw on e85) The pump feels like its slowly dying. At half track I get really bad surge (like it's running out of fuel) but if I lift off off a second then hit again it's fine.Is the pump to low for that power levels? I'm thinking of putting the 420l pump in but need more info.1. Will it fit in (I.e swap over without having to re wire pump considering there's a walbro there now)?2. Is it worth putting a higher pressure reg in?3. Can this be done without having to put a surge pump in (don't have the space for it... Kids etc)?Thanks Link to comment Share on other sites More sharing options...
rednose RNS10S Donating Members 2,229 Member For: 18y 2m 3d Gender: Male Posted 20/06/14 08:54 AM Share Posted 20/06/14 08:54 AM (edited) Surge won't take up any kiddy space, unless you put the kids in the engine bay.http://www.processwest.com.au/images/articles/subsurge24a.jpg Edited 20/06/14 08:54 AM by rednose 1 Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 5m 15d Gender: Male Location: Central Coast Posted 20/06/14 09:55 AM Share Posted 20/06/14 09:55 AM Yes you can run a bigger in tank at that level If it's surging don't drive it hard But put in a Walbro 460 intank with a reg Keep it safe and quiet At that level a surge isn't really necessary 1 Link to comment Share on other sites More sharing options...
Benny Member 1,869 Member For: 21y 2m 14d Gender: Male Location: Newcastle Posted 20/06/14 10:24 AM Share Posted 20/06/14 10:24 AM ^^^ What he said. Walbro 460 intank is the go. Much easier and cheaper than a surge setup. Installing a Reg on its own won't prevent the increased pressure of the bigger pump. There is a restriction in the return line of the swirl pot than will limit flow and increase pressure. This can be corrected or you can have your tune adjusted to accommodate for the higher pressure. Benny. 1 Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 4m 18d Gender: Male Location: Adelaide Posted 20/06/14 08:50 PM Share Posted 20/06/14 08:50 PM Mate a 255 walbro on e85 is out of flow well before 360rwkw your doing well it has not popped a rod already 350 on 98 is the limit on a 255 walbro as a guide Link to comment Share on other sites More sharing options...
WPN270 Member 78 Member For: 16y 5m 3d Gender: Male Location: south west sydney, n.s.w Posted 21/06/14 12:36 AM Author Share Posted 21/06/14 12:36 AM Thanks for the replies. Worked out its definitely the pump.Where can I get a higher pressure regulator from? I know we sell them at ford but.... I'm getting the 400l e85 walbro pump fitted up Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 5m 15d Gender: Male Location: Central Coast Posted 21/06/14 01:11 AM Share Posted 21/06/14 01:11 AM Um I know kpm do a 460 in tank with reg deal. Other wise ebay has some as well. Not too sure on part numbers though Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 4m 18d Gender: Male Location: Adelaide Posted 21/06/14 02:33 AM Share Posted 21/06/14 02:33 AM U dont need a higher bar reg u need more supply 400lt/hr intank pumps are more than fine with stock reg but if your drag racing and above 350rwkw on e85 id be leaving the 255 and going a plaz or PW undercar surge tank mate !!! 1 Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 4m 22d Gender: Male Location: @ my laptop Posted 21/06/14 02:35 AM Share Posted 21/06/14 02:35 AM the supplied reg is not for higher pressure, it is to control pressure where the factory one can't Link to comment Share on other sites More sharing options...
bolic New Member 18 Member For: 12y 2m 27d Gender: Male Posted 21/06/14 03:06 AM Share Posted 21/06/14 03:06 AM hey guys I have a FG turbo running 360kws on E85 and my tuner fitted the fuel pump unit out of the new GT and seems to be working fine Link to comment Share on other sites More sharing options...
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