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**4seasons69** · 08-19-2013

So me and tom spent a bunch of time Saturday flow testing my fuel pumps. We did all tears at 90psi. One of my 255s was 48gal/hr or 181liters/hr. The other was 40 gal/ hour or 151liters/hr. We also tested one of those ford gt pumps which came in at a dismal 33gal/hr lol. Tom also happened to have wally 450 so we put that in we came up with 51gal/hr on that.

Both 255s running they flowed 95 gal/hr. And with the 450 and the better 255 I don't remember exactlybut it was like 105 gal/hr.

So to verify that the one weaker pump wasn't an issue we left the 450 in and did a pull on the hhighway. We took a video of the gauge with a GoPro (haven't seen it yet). But brad rode with and kept an eye on the gauge. The fuel pressure still only went up to 60psi the just stayed there. So the pump wasn't an issue.

At this point I might try and get my hands on a known good regulator and do a pull just for the hell of it. But right now I think I'm just going to do a complete overhaul of the fuel system to make sure everything is up to part with how I want it.

08-19-2013	#17
4seasons69 Join Date: Apr 2007 Location: Circle Pines Drives: 1992 talon tsi 1995 corolla Posts: 2,048	Re: my new project So me and tom spent a bunch of time Saturday flow testing my fuel pumps. We did all tears at 90psi. One of my 255s was 48gal/hr or 181liters/hr. The other was 40 gal/ hour or 151liters/hr. We also tested one of those ford gt pumps which came in at a dismal 33gal/hr lol. Tom also happened to have wally 450 so we put that in we came up with 51gal/hr on that. Both 255s running they flowed 95 gal/hr. And with the 450 and the better 255 I don't remember exactlybut it was like 105 gal/hr. So to verify that the one weaker pump wasn't an issue we left the 450 in and did a pull on the hhighway. We took a video of the gauge with a GoPro (haven't seen it yet). But brad rode with and kept an eye on the gauge. The fuel pressure still only went up to 60psi the just stayed there. So the pump wasn't an issue. At this point I might try and get my hands on a known good regulator and do a pull just for the hell of it. But right now I think I'm just going to do a complete overhaul of the fuel system to make sure everything is up to part with how I want it.