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| Fuel Setups | |
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| Tweet Topic Started: Aug 31 2010, 10:01 AM (2,225 Views) | |
| NVD323 | Aug 31 2010, 10:01 AM Post #1 |
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Anyone got any pics/info custom fuel setups with upgraded pumps external or internal. Surge tanks. Return lines and aftermarket rising rate fuel regs? in altezza's. |
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| xnickx | Aug 31 2010, 10:07 AM Post #2 |
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^^ You may thank me ^^
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Just currently using a Supra TT Fuel pump (soon to go to a Walbro or Bosch intank pump) with 550cc ST215 Injectors |
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| yojimbo | Aug 31 2010, 11:06 AM Post #3 |
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Hidden Dragon
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There are pics of my set up in my members ride thread. Twin walbros in tank. Dash 8 high pressure line with billet filter, sard reg, 800cc sard injectors, currently using the old high pressure line as the return line. Only issues ATM are that the factory venturi (to pump fuel between the tanks) is a bit of a restriction so my minimum fuel pressure is higher than I would like. Will get motivated and sort it out some day. |
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Toyota Nats 5 x Top Toyota Toymods Dyno Day 19 - Killerwatt King Supra Dyno Day 2015 Outright HP and Torque 11.10@141.34mph (0-400m) 22.048@164mph (0-1000m) Built by ... JMR Race Engineering - Toyota Specialist | |
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| riderzx10r | Aug 31 2010, 12:19 PM Post #4 |
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TRD IS200
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there is pics of mine in my members ride thread as well. mine runs the standard fuel pump as a lift to the surge tank in the boot. then a bosch 044 to the rail with sard fuel preasure reg. im not sure what brett did for the return line possably used an old line that was there for somthing else |
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| NVD323 | Aug 31 2010, 01:45 PM Post #5 |
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yeahh this is the same sort of setup i had in mind to do. does your return line go back to tank or surge tank? Could you have a look for me it would help me out alot also if it goes back to tank where abouts? cheers |
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| NVD323 | Aug 31 2010, 01:47 PM Post #6 |
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I have a new walbro in tank 500hp you can buy off me if you want.... im probally not going to use |
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| riderzx10r | Aug 31 2010, 05:09 PM Post #7 |
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TRD IS200
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return line goes back to the surge tank with an over flow back to the main tank I think....... I will check that out for you |
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| Leiden | Aug 31 2010, 05:51 PM Post #8 |
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NZ, Whangarei
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I'm using the standard pump and high pressure line to the rail, the return uses the old emissions breather line which is connected to the stock venturi pump in place of the stock regulator. So far it has been fine but will later get proper braided line run. The standard venturi pump is a bit of a restriction, but you can bore the bypass holes out a little to improve the flow, or if you're game enough add a few more holes so that it can bypass more fuel. |
| Project Thread | |
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| yojimbo | Aug 31 2010, 06:38 PM Post #9 |
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Hidden Dragon
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A genuine TT pump will flow more than a walbro. Nick, I'd look to the sard pump if you want a single pump bigger than that. |
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Toyota Nats 5 x Top Toyota Toymods Dyno Day 19 - Killerwatt King Supra Dyno Day 2015 Outright HP and Torque 11.10@141.34mph (0-400m) 22.048@164mph (0-1000m) Built by ... JMR Race Engineering - Toyota Specialist | |
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| NVD323 | Aug 31 2010, 08:29 PM Post #10 |
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reckon this would work? *Standard pump as lift pump to surge tank. *Main feed from surge tank to high flow external pump to fuel rail. *End of fuel rail to rising rate reg *From reg back to the surge tank. let me know if you guys can see a problem |
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| Distrb | Aug 31 2010, 08:36 PM Post #11 |
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Nuts
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thats how i'd set it up. then run a return from the surge tank back to the main tank to maintain a level in the surge tank |
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| xnickx | Aug 31 2010, 08:53 PM Post #12 |
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^^ You may thank me ^^
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Sorry to hijack the thread Ryan but, anyone out there using a Denso intank? 60psi 305lph 11.5amps 14v Seems cheap compared to the Sard Intanks and flows more than the Bosch 040 Intanks. My Supra pump just seems to be making intermittent choking noises, but yes did find out that the Supra TT pumps do flow more than a Walbro thanks Matt |
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| NVD323 | Aug 31 2010, 09:46 PM Post #13 |
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i dont understand why i need to have a return from my surge tank back to main tank? wouldnt the intank reg control that? the only benfit i can see is it would keep my fuel from getting to hot.......... |
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| yojimbo | Sep 1 2010, 12:04 AM Post #14 |
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Hidden Dragon
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You have to get rid of the intank reg. It serves no purpose anymore. If you have the right lift pump, it should be able to fill the surge tank many times faster than the high pressure pump could empty it. |
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Toyota Nats 5 x Top Toyota Toymods Dyno Day 19 - Killerwatt King Supra Dyno Day 2015 Outright HP and Torque 11.10@141.34mph (0-400m) 22.048@164mph (0-1000m) Built by ... JMR Race Engineering - Toyota Specialist | |
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| yojimbo | Sep 1 2010, 12:12 AM Post #15 |
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Hidden Dragon
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This is what it looks like, 2 inlets and one return. Had to plastic weld up all the holes, mill it flat and re drill. A couple of days work in the hanger alone. If I did it again I think Id just buy a billet pump hanger. Took a lot of [f**k]ing around to stop it leaking even with the best hardware around. ![]() ![]() |
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Toyota Nats 5 x Top Toyota Toymods Dyno Day 19 - Killerwatt King Supra Dyno Day 2015 Outright HP and Torque 11.10@141.34mph (0-400m) 22.048@164mph (0-1000m) Built by ... JMR Race Engineering - Toyota Specialist | |
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| Distrb | Sep 1 2010, 08:08 AM Post #16 |
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Nuts
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As yojimbo said, the job of your lift pump is to fill your surge tank faster than the the high pressure pump can empty it, so that the surge tank stays full of fuel (which is why you have it). So you need to have a return to the main tank to allow the lift pump to maintain the surge tank level, otherwise the lift pump will crap itself trying to pump fuel into something that is full, or burst a line somewhere if the pressure builds up too much. In tank Regulator controls pressure, not flow rate. thats why its called a pressure regulator, should be able to do away with the stock in tank one and go to a low pressure high flow lift pump. |
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| NVD323 | Sep 1 2010, 05:52 PM Post #17 |
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yeahh i can see now. i wont be able to return off my rising rate reg to the surge tank as it will already be pressurised. so where do i tap into the tank for my return? i quessing into the top of the pump housin. but whats the go with problem guys were havin with getin fuel over from the none pump side of the tank?>........ What a shit setup ehh |
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| Celica RA45 | Sep 1 2010, 06:25 PM Post #18 |
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Lowered
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what fuel rate is the std intank pump ,by going up to say 305 litres per hour you will start to heat up the fuel going back to the tank ,it will then cavitate the fuel and you will end up with no fuel ,going to the fuel rail.. what you could do is look at pumps that say flow about 130 up to 200 litres per hour no higher and you can also play around with a fuel reg to up the fuel pressure from 68lbs to 80 lbs |
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| ke_70 | Sep 2 2010, 12:49 AM Post #19 |
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would 80L/H be enough to feed the 3s? just wondering if my standed fuel pump will need to be upgraded? |
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| yojimbo | Sep 2 2010, 03:05 PM Post #20 |
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Hidden Dragon
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Dont stuff around with small fuel pumps. 3L a minute is the smallest I would put on any turbo engine. Not sure about benchmarks for atmo stuff. Flow is very important, a pumps flow characteristics will change markedly with pressure. be sure to check flow at your nominated max fuel pressure. |
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Toyota Nats 5 x Top Toyota Toymods Dyno Day 19 - Killerwatt King Supra Dyno Day 2015 Outright HP and Torque 11.10@141.34mph (0-400m) 22.048@164mph (0-1000m) Built by ... JMR Race Engineering - Toyota Specialist | |
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| NVD323 | Sep 2 2010, 03:50 PM Post #21 |
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Tank return postion anyone????? and what is the stock fuel pressure? |
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| yojimbo | Sep 2 2010, 05:34 PM Post #22 |
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Hidden Dragon
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I showed you mine! Blue push on fitting is for return. Stock fuel pressure woudl be set by your tuner and si determined by the characterisitcs of your Injectors. I think Mine is roughly 42 psi. So with a rising rate regulator, the pumps need to maintain flow at 42 + 23 = 65psi minimum. I tested my fuel system for leaks at 90+ psi. It takes a decent pump to supply 3L/min at 65 psi! |
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Toyota Nats 5 x Top Toyota Toymods Dyno Day 19 - Killerwatt King Supra Dyno Day 2015 Outright HP and Torque 11.10@141.34mph (0-400m) 22.048@164mph (0-1000m) Built by ... JMR Race Engineering - Toyota Specialist | |
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| ke_70 | Sep 2 2010, 10:09 PM Post #23 |
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so 80l/H is to small? so my setup is standed 3sge altezza motor so na i will have an intake fuel pump and a fuel reg is there a return line from standed? and will i need to put one in with this setup? |
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| NVD323 | Sep 3 2010, 08:40 AM Post #24 |
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yeah i was looking at ure pics but it confuses me a lil. where does your return hose end up going?like where does it end? sorry for being dum i just want to get it right. what are the twin intank pumps you are using? |
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| Distrb | Sep 3 2010, 09:25 AM Post #25 |
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Nuts
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Stock fuel pressure on returnless system is 46psi. |
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also if it goes back to tank where abouts? cheers


8:27 PM Jul 11