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I'm gonna need an electric fuel pump that will do at least 20 PSI and still maintain a good flow . I need the high preassure cause it's gotta boost refrence for the turbocharger ( fuel preassure has to overcome boost preassure ). so I'm also going to need a bypass fuel preassure regulator, that will refrence boost preassure and increase fuel press on a 1:1 ratio. what is a good pump/ regulator for this?
this is what I'v found so far, that's not some $600 peice, good for 1k HP http://store.summitracing.com/partde...5&autoview=sku
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Yeah that stuff can be expensive.
Based on BSFC needs you want 8-9 gph per 100 hp at whatever boost you are operating at. The free flow of the Carter is 50 gph but I wonder what it will do at elevated pressures?
I like the pumps and regulators that Aeromotive and Barry Grant make. But they are pricey. I settled on a Holley Black pump (14 psi and 140 gph) and an Aeromotive regulator for my non-boosted application.
I'm also using a fuel pump relay from Painless, parallel fuel feeds and brass filters before the pump and an Aeromotive canister filter after the pump.
Regards, Kitz
I just got thinking. older Volkswagons with fuel injection ( port and TBI ) have external high preassure fuel pumps, the tank pump is only a transfer pump. some of these engines are turbocharged. couple towns over, is the VW Parts USA ( 1800-VW- Parts ) junkyard, that ships worldwide, and is well known by the VW tuner crowd. they sell new OEM parts ( real cheap too ), as well as used parts. I could get a brand new fuel pump that can pump 20 PSI, and maintain a good flow. those guys are pretty knowlagble about the VW stuff, I'v dealt with them b4 ( brother had a couple VW's that always had somthing wrong ), so they could probably get me flow # and a good deal on somthing that would work. it's all Bosch stuff, so that's not bad.
sounds like a smart way to go... sometimes factory application stuff can cost a lot less, with my mustang i ended up finding a carter in tank pump modified for fitting my tank float and sending unit, so it all fits up to the factory lines nicely.... it only puts out 7psi though, so it wouldn't help you any matt, even though you have the same sending unit
yeah, I'll call them today and see what they can do. only thing I'll be worried about is it pumping from the tank, they normally use a low psi transfer in tank pump, to pump to the high preassure pump, so I may need a higher flow low preassure pump, to make a VW pump work.
Well, I ended up going to Advance Auto and talking to 1 of the more knowlagble counter persons, told him I needed a fuel pump that could push 40 PSI and maintain a good flow. so he got out his book on Edlebrock and looked up a pump that would work, but at $250 forget it. so he got the holley book, looked up a pump that would work, could pump 40 PSI and at 25 PSI, would pump 35 GPH @ 13.5V ( I'll be running 13.5v but closer to 20 PSI demand, actully only 17 PSI ), which will be enough, for $166 with tax, so I bought it. rather than have to have a transfer pump for peace of mind that I would need for the VW pump. I'll get a dual relay kit and wire my MSD box ( actully low draw, just fires up an internal relay thru the 12v switched wire ) and the fuel pump into it, thru the ignition wire that's hot only with ign on.
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