johnd-mkiv Posted January 29, 2011 Share Posted January 29, 2011 I want to build a fuel systen with a swirl pot and larger fuel pump for my track car project, as the fuel seems to slosh about alot and i cant get a bosh 044 in the tank. Im running around 500bhp at the moment wont be more than 600 Not seen much on these or have much of an idea how they work an explanation, drawings an pictures would be great to help me along John Quote Link to comment Share on other sites More sharing options...
johnny g Posted January 29, 2011 Share Posted January 29, 2011 Chris Wilson has done some nice swirl pots on his Skyline, and if you read Paul Whiffin's racecar build, there's a good mention of the fuel setup there. Quote Link to comment Share on other sites More sharing options...
Steve Posted January 29, 2011 Share Posted January 29, 2011 http://www.mkivsupra.net/vbb/showthread.php?230845-Fuel-System-Setups!&p=2924616&viewfull=1#post2924616 Some pictures from CW's Skyline Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 13, 2011 Author Share Posted February 13, 2011 Had a read through CW's setup looks a bit much for my project, I have a walbro in tank pump at the moment can i use this as a feed to the swirl pot then a bosh 044 to feed the rail. from what i understand a feed from the walbro in tank pump to the middle of the swirl pot a take off from the bottom of the tank to the bosh 044 then to the rail an over flow/ breather top centre back to the tank a return fuel rail to middle of the pot or back in the tank? is this correct:help: in one of the links it gives a swirl pot design of 200mm high 100mm diameter, is this big enough? Quote Link to comment Share on other sites More sharing options...
JamieP Posted February 13, 2011 Share Posted February 13, 2011 How about just take a bottom feed from the tank and mount the pump under the car? thats what SRD is doing with my new fuel setup, keep it simple, he got the idea from the Blitz supra, similar setup on that. Quote Link to comment Share on other sites More sharing options...
dude Posted February 13, 2011 Share Posted February 13, 2011 How about just take a bottom feed from the tank and mount the pump under the car? thats what SRD is doing with my new fuel setup, keep it simple, he got the idea from the Blitz supra, similar setup on that. Doing the same JP with a Fuel Cell and same pump as you, BUT the fuel cell is filled with foam so fuel slosh is limited. Quote Link to comment Share on other sites More sharing options...
magictorch Posted February 13, 2011 Share Posted February 13, 2011 I was going top go with an Aeromotive stealth fuel cell....nice bit of kit and everything built in Quote Link to comment Share on other sites More sharing options...
dude Posted February 13, 2011 Share Posted February 13, 2011 I was going top go with an Aeromotive stealth fuel cell....nice bit of kit and everything built in Got a link?????? Quote Link to comment Share on other sites More sharing options...
JamieP Posted February 13, 2011 Share Posted February 13, 2011 Got a link?????? http://aeromotiveinc.com/2010/03/aeromotive-stealth-fuel-cells/ Quote Link to comment Share on other sites More sharing options...
dude Posted February 13, 2011 Share Posted February 13, 2011 http://aeromotiveinc.com/2010/03/aeromotive-stealth-fuel-cells/ Looks cool JP, would suit your car and a lot safer, too much fuel for me, I need about 5 gallons, I want to run as little fuel as poss at the strip. Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 13, 2011 Author Share Posted February 13, 2011 How about just take a bottom feed from the tank and mount the pump under the car? thats what SRD is doing with my new fuel setup, keep it simple, he got the idea from the Blitz supra, similar setup on that. do you mean eliminating the swirl pot an using the fuel tank as one? Quote Link to comment Share on other sites More sharing options...
JamieP Posted February 13, 2011 Share Posted February 13, 2011 do you mean eliminating the swirl pot an using the fuel tank as one? Yeah, no swirl pot, tbh on a track car (or road car for that matter) id not want that lot in the boot myself unless you are protected by a sealed firewall. Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 13, 2011 Author Share Posted February 13, 2011 Yeah, no swirl pot, tbh on a track car (or road car for that matter) id not want that lot in the boot myself unless you are protected by a sealed firewall. Yer thats whats worried me about that set up, due to the roll cage design I cant seal the firewall. The tank in the BMW is a saddle type which might be my next problem Quote Link to comment Share on other sites More sharing options...
Kirk Posted February 13, 2011 Share Posted February 13, 2011 How about just take a bottom feed from the tank and mount the pump under the car? thats what SRD is doing with my new fuel setup, keep it simple, he got the idea from the Blitz supra, similar setup on that. Interesting setup, any pic's? Quote Link to comment Share on other sites More sharing options...
TLicense Posted February 13, 2011 Share Posted February 13, 2011 If I was doing anything like particularly more extreme than fitting pumps into a tank, I'd probably have a word with these chaps about making a system for me. http://atlfuelcells.com/ Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 14, 2011 Share Posted February 14, 2011 Had a read through CW's setup looks a bit much for my project, I have a walbro in tank pump at the moment can i use this as a feed to the swirl pot then a bosh 044 to feed the rail. from what i understand a feed from the walbro in tank pump to the middle of the swirl pot a take off from the bottom of the tank to the bosh 044 then to the rail an over flow/ breather top centre back to the tank a return fuel rail to middle of the pot or back in the tank? is this correct:help: in one of the links it gives a swirl pot design of 200mm high 100mm diameter, is this big enough? You need to be sure the main tank lift pump will flow enough to bring the rail return back to the main tank. It helps cool the fuel but it's less risky returning the rail to the swirl pot. I have done dozens of installations, they are quite straightforward, but if you use proper screw on hose fittings on braided lines it gets VERY costly, very quickly. AEM do a really good guide to EFI basics governing injector, hose and pump sizing, although they don't show a swirl pot. I make my own, but it's just because I can put everything exactly where I want it. It's easier just to buy a commercially made alloy one. The size you quote is adequate. Motec's downloadable M8* series ECU owners booklet shows swirl pot schematics. Here's a link to the AEM guide: http://www.chriswilson.tv/aem.pdf Here's the Motec user manual: http://www.chriswilson.tv/m800.pdf Page 26 shows the schematics. Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 14, 2011 Author Share Posted February 14, 2011 You need to be sure the main tank lift pump will flow enough to bring the rail return back to the main tank. It helps cool the fuel but it's less risky returning the rail to the swirl pot. I have done dozens of installations, they are quite straightforward, but if you use proper screw on hose fittings on braided lines it gets VERY costly, very quickly. AEM do a really good guide to EFI basics governing injector, hose and pump sizing, although they don't show a swirl pot. I make my own, but it's just because I can put everything exactly where I want it. It's easier just to buy a commercially made alloy one. The size you quote is adequate. Motec's downloadable M8* series ECU owners booklet shows swirl pot schematics. Here's a link to the AEM guide: http://www.chriswilson.tv/aem.pdf Here's the Motec user manual: http://www.chriswilson.tv/m800.pdf Page 26 shows the schematics. Cheers Chris Or do i attach a fitting to the bottom of the tank with an 044 pump like JamieP suggested. All help much appreciated Quote Link to comment Share on other sites More sharing options...
SimonB Posted February 15, 2011 Share Posted February 15, 2011 You don't want to just use a normal high pressure pump to feed a swirl pot, since it will be at low pressure and HP pumps don't work efficiently (or at all) at low pressure. You need a proper LP lift pump. Quote Link to comment Share on other sites More sharing options...
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