Searching For The Best Performance Fuel Pump Upgrade

We rank the most popular performance fuel pumps using data collected by Turbo & High Tech Performance magazine and their amazing performance fuel pump test to see which was best.

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In their tests they measured current draw & fuel flow in 5 PSI steps from 45 PSI up to 100PSI.

The table below is the raw data from that article compiled into one table.

Part 1 of the original test is here http://www.superstreetonline.com/how-to/engine/1404-fuel-pump-shootout/

Part 2 is here http://www.superstreetonline.com/how-to/engine/1405-fuel-pump-shootout-part-2/

https://youtu.be/V3VJY5i_Yjg

The key takeaways. With regards to efficiency and power handling, there is a clear winner and that is the Walbro GSS340/341/342 fuel pump.

This fuel pump gives a huge increase in fuel flow over the standard fuel pump on most cars while drawing around the same amount of current. You can use the car’s original wiring and the pump is a drop in replacement for the car’s original fuel pump. It does not get easier than that.

If you are happy to rewire your fuel pump with thicker cabling and you are happy to add some extra plumbing to your fuel system so you can fit an inline fuel pump, the Bosch 044 fuel pump came out top for turbo vehicles

For normally aspirated engines the Aeromotive and the CNT Racing fuel pumps came out on top, and both these pumps are designed to be drop in replacements (but check if this is true for your vehicle if you are not sure)

There are a few performance fuel pump tests on the internet but in my experience they do not measure the current draw and this is crucial, especially if you are wanting to use your car’s factory fuel pump wiring.

Some things to note. These pumps are designed for fuel systems which designed to deliver fuel at 45PSI, if you have a fuel system which injects fuel directly into the combustion chamber, these fuel pumps are not for you.

Performance Fuel Pump Comparison Test – Winners

Factory Wiring Drop In ReplacementWalbro GSS340/GSS341/GSS342

Turbo with wiring upgrade and extra plumbingBosch 044

Turbo with wiring upgrade, drop in replacement – CNT Racing/Aeromotive Stealth 340lph

Normally Aspirated Engine, with wiring upgradeCNT Racing/Aeromotive Stealth 340lph

Notes: RC Engineering noted in the test that on paper the non name and fake fuel pumps gave good figures, however they noticed that the fuel flow through the pumps was not stable even at constant voltage and this could lead to fuelling problems especially if the pumps were being run close to their limits, their advice was to stick to the genuine branded fuel pumps which all gave steady fuel flow.


 

Performance Fuel Pump Data

Brand PSIG BOOST PSI Volts Amps Ltr/Hr Power BHP 0.5 BSFC BHP/AMP
Denso Evo IX Fuel Pump 45.0 0.0 13.5 10.9 184.9 586.0 53.8
Denso Evo IX Fuel Pump 50.0 5.0 13.5 11.3 174.8 554.0 49.0
Denso Evo IX Fuel Pump 55.0 10.0 13.5 11.6 163.4 518.0 44.7
Denso Evo IX Fuel Pump 60.0 15.0 13.5 11.9 152.1 482.0 40.5
Denso Evo IX Fuel Pump 65.0 20.0 13.5 12.2 140.1 444.0 36.4
Denso Evo IX Fuel Pump 70.0 25.0 13.5 12.4 128.7 408.0 32.9
Denso Evo IX Fuel Pump 75.0 30.0 13.5 12.8 119.2 378.0 29.5
Denso Evo IX Fuel Pump 80.0 35.0 13.5 13.2 106.6 338.0 25.6
Denso Evo IX Fuel Pump 85.0 40.0 13.5 13.5 88.3 280.0 20.7
Denso Evo IX Fuel Pump 90.0 45.0 13.5 13.8 70.7 224.0 16.2
Denso Evo IX Fuel Pump 95.0 50.0 13.5 14.2 54.3 172.0 12.1
AEM High-Flow 320 LPH 45.0 0.0 13.5 11.2 299.7 950.0 84.8
AEM High-Flow 320 LPH 50.0 5.0 13.5 11.6 285.8 906.0 78.1
AEM High-Flow 320 LPH 55.0 10.0 13.5 12.0 274.5 870.0 72.5
AEM High-Flow 320 LPH 60.0 15.0 13.5 12.4 265.0 840.0 67.7
AEM High-Flow 320 LPH 65.0 20.0 13.5 12.7 254.9 808.0 63.6
AEM High-Flow 320 LPH 70.0 25.0 13.5 13.1 244.2 774.0 59.1
AEM High-Flow 320 LPH 75.0 30.0 13.5 13.4 228.4 724.0 54.0
AEM High-Flow 320 LPH 80.0 35.0 13.5 13.8 218.3 692.0 50.1
AEM High-Flow 320 LPH 85.0 40.0 13.5 14.3 208.2 660.0 46.2
AEM High-Flow 320 LPH 90.0 45.0 13.5 14.6 193.1 612.0 41.9
AEM High-Flow 320 LPH 95.0 50.0 13.5 15.0 176.7 560.0 37.3
AEM High-Flow 320 LPH 100.0 55.0 13.5 15.6 150.2 476.0 30.5
Aeromotive Stealth FP 340 lph 45.0 0.0 13.5 11.4 318.0 1008.0 88.4
Aeromotive Stealth FP 340 lph 50.0 5.0 13.5 11.6 306.6 972.0 83.8
Aeromotive Stealth FP 340 lph 55.0 10.0 13.5 12.0 298.4 946.0 78.8
Aeromotive Stealth FP 340 lph 60.0 15.0 13.5 12.3 272.6 864.0 70.2
Aeromotive Stealth FP 340 lph 65.0 20.0 13.5 12.6 272.6 864.0 68.6
Aeromotive Stealth FP 340 lph 70.0 25.0 13.5 12.8 259.9 824.0 64.4
Aeromotive Stealth FP 340 lph 75.0 30.0 13.5 13.1 246.1 780.0 59.5
Aeromotive Stealth FP 340 lph 80.0 35.0 13.5 13.5 234.1 742.0 55.0
Aeromotive Stealth FP 340 lph 85.0 40.0 13.5 13.8 224.0 710.0 51.4
Aeromotive Stealth FP 340 lph 90.0 45.0 13.5 14.4 216.4 686.0 47.6
Aeromotive Stealth FP 340 lph 95.0 50.0 13.5 14.7 206.3 654.0 44.5
Aeromotive Stealth FP 340 lph 100.0 55.0 13.5 15.2 191.8 608.0 40.0
Bosch 044 Inline 300 lph 45.0 0.0 13.5 12.4 284.5 902.0 72.7
Bosch 044 Inline 300 lph 50.0 5.0 13.5 12.8 281.4 892.0 69.7
Bosch 044 Inline 300 lph 55.0 10.0 13.5 13.1 277.0 878.0 67.0
Bosch 044 Inline 300 lph 60.0 15.0 13.5 13.4 272.6 864.0 64.5
Bosch 044 Inline 300 lph 65.0 20.0 13.5 13.7 268.8 852.0 62.2
Bosch 044 Inline 300 lph 70.0 25.0 13.5 14.1 265.6 842.0 59.7
Bosch 044 Inline 300 lph 75.0 30.0 13.5 14.4 262.5 832.0 57.8
Bosch 044 Inline 300 lph 80.0 35.0 13.5 14.5 256.2 812.0 56.0
Bosch 044 Inline 300 lph 85.0 40.0 13.5 14.9 253.0 802.0 53.8
Bosch 044 Inline 300 lph 90.0 45.0 13.5 15.2 249.2 790.0 52.0
Bosch 044 Inline 300 lph 95.0 50.0 13.5 15.6 244.2 774.0 49.6
Bosch 044 Inline 300 lph 100.0 55.0 13.5 16.0 239.8 760.0 47.5
CNT Racing 300 lph 45.0 0.0 13.5 12.6 315.5 1000.0 79.4
CNT Racing 300 lph 50.0 5.0 13.5 12.9 306.0 970.0 75.2
CNT Racing 300 lph 55.0 10.0 13.5 13.3 296.5 940.0 70.7
CNT Racing 300 lph 60.0 15.0 13.5 13.6 287.1 910.0 66.9
CNT Racing 300 lph 65.0 20.0 13.5 14.0 276.3 876.0 62.6
CNT Racing 300 lph 70.0 25.0 13.5 14.3 261.8 830.0 58.0
CNT Racing 300 lph 75.0 30.0 13.5 14.8 251.1 796.0 53.8
CNT Racing 300 lph 80.0 35.0 13.5 15.1 241.0 764.0 50.6
CNT Racing 300 lph 85.0 40.0 13.5 15.5 227.8 722.0 46.6
CNT Racing 300 lph 90.0 45.0 13.5 15.8 216.4 686.0 43.4
CNT Racing 300 lph 95.0 50.0 13.5 16.2 201.9 640.0 39.5
CNT Racing 300 lph 100.0 55.0 13.5 16.5 185.5 588.0 35.6
Deatschwerks DW200 255 LPH 45.0 0.0 13.5 9.1 239.8 760.0 83.5
Deatschwerks DW200 255 LPH 50.0 5.0 13.5 9.4 232.8 738.0 78.5
Deatschwerks DW200 255 LPH 55.0 10.0 13.5 9.6 224.6 712.0 74.2
Deatschwerks DW200 255 LPH 60.0 15.0 13.5 9.8 217.7 690.0 70.4
Deatschwerks DW200 255 LPH 65.0 20.0 13.5 10.1 210.7 668.0 66.1
Deatschwerks DW200 255 LPH 70.0 25.0 13.5 10.4 199.4 632.0 60.8
Deatschwerks DW200 255 LPH 75.0 30.0 13.5 10.7 195.6 620.0 57.9
Deatschwerks DW200 255 LPH 80.0 35.0 13.5 11.0 190.5 604.0 54.9
Deatschwerks DW200 255 LPH 85.0 40.0 13.5 11.3 182.3 578.0 51.2
Deatschwerks DW200 255 LPH 90.0 45.0 13.5 11.5 173.5 550.0 47.8
Deatschwerks DW200 255 LPH 95.0 50.0 13.5 11.8 162.2 514.0 43.6
Deatschwerks DW200 255 LPH 100.0 55.0 13.5 12.1 147.6 468.0 38.7
Deatschwerks DW300 340LPH 45.0 0.0 13.5 13.7 305.4 968.0 70.7
Deatschwerks DW300 340LPH 50.0 5.0 13.5 14.0 295.9 938.0 67.0
Deatschwerks DW300 340LPH 55.0 10.0 13.5 14.4 283.3 898.0 62.4
Deatschwerks DW300 340LPH 60.0 15.0 13.5 14.7 270.0 856.0 58.2
Deatschwerks DW300 340LPH 65.0 20.0 13.5 15.0 258.7 820.0 54.7
Deatschwerks DW300 340LPH 70.0 25.0 13.5 15.5 246.1 780.0 50.3
Deatschwerks DW300 340LPH 75.0 30.0 13.5 15.9 233.4 740.0 46.5
Deatschwerks DW300 340LPH 80.0 35.0 13.5 16.1 222.7 706.0 43.9
Deatschwerks DW300 340LPH 85.0 40.0 13.5 16.5 204.4 648.0 39.3
Deatschwerks DW300 340LPH 90.0 45.0 13.5 16.8 194.3 616.0 36.7
Deatschwerks DW300 340LPH 95.0 50.0 13.5 17.2 180.4 572.0 33.3
Deatschwerks DW300 340LPH 100.0 55.0 13.5 17.5 167.8 532.0 30.4
Deatschwerks DW65C 265 LPH 45.0 0.0 13.5 8.9 258.0 818.0 91.9
Deatschwerks DW65C 265 LPH 50.0 5.0 13.5 9.3 249.2 790.0 84.9
Deatschwerks DW65C 265 LPH 55.0 10.0 13.5 9.6 240.4 762.0 79.4
Deatschwerks DW65C 265 LPH 60.0 15.0 13.5 9.9 229.0 726.0 73.3
Deatschwerks DW65C 265 LPH 65.0 20.0 13.5 10.2 219.6 696.0 68.2
Deatschwerks DW65C 265 LPH 70.0 25.0 13.5 10.4 206.3 654.0 62.9
Deatschwerks DW65C 265 LPH 75.0 30.0 13.5 10.8 196.2 622.0 57.6
Deatschwerks DW65C 265 LPH 80.0 35.0 13.5 11.0 184.2 584.0 53.1
Deatschwerks DW65C 265 LPH 85.0 40.0 13.5 11.3 43.9 550.0 48.7
Deatschwerks DW65C 265 LPH 90.0 45.0 13.5 11.6 163.4 518.0 44.7
Deatschwerks DW65C 265 LPH 95.0 50.0 13.5 11.9 150.8 478.0 40.2
Deatschwerks DW65C 265 LPH 100.0 55.0 13.5 12.3 138.8 440.0 35.8
Denso Supra TT OEM 260LPH 45.0 0.0 13.5 15.5 310.4 984.0 63.5
Denso Supra TT OEM 260LPH 50.0 5.0 13.5 15.6 295.9 938.0 60.1
Denso Supra TT OEM 260LPH 55.0 10.0 13.5 16.0 283.9 900.0 56.3
Denso Supra TT OEM 260LPH 60.0 15.0 13.5 16.2 265.0 840.0 51.9
Denso Supra TT OEM 260LPH 65.0 20.0 13.5 16.5 249.8 792.0 48.0
Denso Supra TT OEM 260LPH 70.0 25.0 13.5 16.7 233.4 740.0 44.3
Denso Supra TT OEM 260LPH 75.0 30.0 13.5 17.0 215.1 682.0 40.1
Denso Supra TT OEM 260LPH 80.0 35.0 13.5 17.1 190.5 604.0 35.3
Denso Supra TT OEM 260LPH 85.0 40.0 13.5 17.4 165.3 524.0 30.1
Fake Bosch 044 Inline 300 lph 45.0 0.0 13.5 7.5 230.9 732.0 97.6
Fake Bosch 044 Inline 300 lph 50.0 5.0 13.5 8.1 221.5 702.0 86.7
Fake Bosch 044 Inline 300 lph 55.0 10.0 13.5 8.6 213.3 676.0 78.6
Fake Bosch 044 Inline 300 lph 60.0 15.0 13.5 9.1 205.7 652.0 71.6
Fake Bosch 044 Inline 300 lph 65.0 20.0 13.5 9.5 198.1 628.0 66.1
Fake Bosch 044 Inline 300 lph 70.0 25.0 13.5 9.9 193.1 612.0 61.8
Fake Bosch 044 Inline 300 lph 75.0 30.0 13.5 10.3 184.2 584.0 56.7
Fake Bosch 044 Inline 300 lph 80.0 35.0 13.5 10.7 177.9 564.0 52.7
Fake Bosch 044 Inline 300 lph 85.0 40.0 13.5 11.1 170.4 540.0 48.6
Fake Bosch 044 Inline 300 lph 90.0 45.0 13.5 11.6 162.2 514.0 44.3
Fake Bosch 044 Inline 300 lph 95.0 50.0 13.5 11.9 155.2 492.0 41.3
Fake Bosch 044 Inline 300 lph 100.0 55.0 13.5 12.4 147.0 466.0 37.6
Fake Walbro 255 lph 45.0 0.0 13.5 12.9 252.4 800.0 62.0
Fake Walbro 255 lph 50.0 5.0 13.5 13.2 245.4 778.0 58.9
Fake Walbro 255 lph 55.0 10.0 13.5 13.5 238.5 756.0 56.0
Fake Walbro 255 lph 60.0 15.0 13.5 13.7 231.6 734.0 53.6
Fake Walbro 255 lph 65.0 20.0 13.5 14.0 227.1 720.0 51.4
Fake Walbro 255 lph 70.0 25.0 13.5 14.2 220.8 700.0 49.3
Fake Walbro 255 lph 75.0 30.0 13.5 14.6 215.1 682.0 46.7
Fake Walbro 255 lph 80.0 35.0 13.5 14.9 210.7 668.0 44.8
Fake Walbro 255 lph 85.0 40.0 13.5 15.2 202.5 642.0 42.2
Fake Walbro 255 lph 90.0 45.0 13.5 15.5 196.2 622.0 40.1
Fake Walbro 255 lph 95.0 50.0 13.5 15.8 189.3 600.0 38.0
Fake Walbro 255 lph 100.0 55.0 13.5 16.1 183.6 582.0 36.1
Internet 340 lph 45.0 0.0 13.5 10.7 310.4 984.0 92.0
Internet 340 lph 50.0 5.0 13.5 11.2 291.5 924.0 82.5
Internet 340 lph 55.0 10.0 13.5 11.5 277.6 880.0 76.5
Internet 340 lph 60.0 15.0 13.5 12.0 262.5 832.0 69.3
Internet 340 lph 65.0 20.0 13.5 12.3 249.8 792.0 64.4
Internet 340 lph 70.0 25.0 13.5 12.8 241.0 764.0 59.7
Internet 340 lph 75.0 30.0 13.5 13.3 227.1 720.0 54.1
Internet 340 lph 80.0 35.0 13.5 13.6 208.8 662.0 48.7
Internet 340 lph 85.0 40.0 13.5 14.0 195.6 620.0 44.3
Internet 340 lph 90.0 45.0 13.5 14.4 181.1 574.0 39.9
Internet 340 lph 95.0 50.0 13.5 14.8 170.4 540.0 36.5
Internet 340 lph 100.0 55.0 13.5 15.3 157.1 498.0 32.5
Unisia JECS 02-05 WRX 130 LPH 45.0 0.0 13.5 6.7 157.7 500.0 74.6
Unisia JECS 02-05 WRX 130 LPH 50.0 5.0 13.5 6.9 147.6 468.0 67.8
Unisia JECS 02-05 WRX 130 LPH 55.0 10.0 13.5 7.2 138.8 440.0 61.1
Unisia JECS 02-05 WRX 130 LPH 60.0 15.0 13.5 7.3 129.3 410.0 56.2
Unisia JECS 02-05 WRX 130 LPH 65.0 20.0 13.5 7.6 119.9 380.0 50.0
Unisia JECS 02-05 WRX 130 LPH 70.0 25.0 13.5 7.8 105.4 334.0 42.8
Unisia JECS 02-05 WRX 130 LPH 75.0 30.0 13.5 8.0 89.6 284.0 35.5
Unisia JECS 02-05 WRX 130 LPH 80.0 35.0 13.5 8.2 68.8 218.0 26.6
Unisia JECS 02-05 WRX 130 LPH 85.0 40.0 13.5 8.4 43.9 148.0 17.6
Unisia JECS 02-05 WRX 130 LPH 90.0 45.0 13.5 8.7 15.8 50.0 5.7
Unisia JECS 2005 STI 145LPH 45.0 0.0 13.5 7.3 175.4 556.0 76.2
Unisia JECS 2005 STI 145LPH 50.0 5.0 13.5 7.5 164.7 522.0 69.6
Unisia JECS 2005 STI 145LPH 55.0 10.0 13.5 7.7 155.2 492.0 63.9
Unisia JECS 2005 STI 145LPH 60.0 15.0 13.5 7.9 144.5 458.0 58.0
Unisia JECS 2005 STI 145LPH 65.0 20.0 13.5 8.1 133.8 424.0 52.3
Unisia JECS 2005 STI 145LPH 70.0 25.0 13.5 8.4 124.3 394.0 46.9
Unisia JECS 2005 STI 145LPH 75.0 30.0 13.5 8.6 106.0 336.0 39.1
Unisia JECS 2005 STI 145LPH 80.0 35.0 13.5 8.7 87.1 276.0 31.7
Unisia JECS 2005 STI 145LPH 85.0 40.0 13.5 8.9 17.7 56.0 6.3
Walbro 255 lph 45.0 0.0 13.5 6.2 263.7 836.0 134.8
Walbro 255 lph 50.0 5.0 13.5 6.4 254.9 808.0 126.3
Walbro 255 lph 55.0 10.0 13.5 6.7 248.6 788.0 117.6
Walbro 255 lph 60.0 15.0 13.5 7.1 241.6 766.0 107.9
Walbro 255 lph 65.0 20.0 13.5 7.4 234.1 742.0 100.3
Walbro 255 lph 70.0 25.0 13.5 7.7 225.9 716.0 93.0
Walbro 255 lph 75.0 30.0 13.5 8.0 218.3 692.0 86.5
Walbro 255 lph 80.0 35.0 13.5 8.4 208.8 662.0 78.8
Walbro 255 lph 85.0 40.0 13.5 8.8 201.3 638.0 72.5
Walbro 255 lph 90.0 45.0 13.5 9.3 178.6 566.0 60.9
Walbro 255 lph 95.0 50.0 13.5 9.7 162.8 516.0 53.2
Walbro 255 lph 100.0 55.0 13.5 10.2 146.4 464.0 45.5

 


This page was last modified Jun 5, 2019 @ 4:57 pm



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