Back to N20 Wiki

N20 & N26 HPFP & LPFP Flow Rate Data

Click here for the B58TU HPFP Retrofit DIY Guide

Note: HP figures are calculated using standard BSFC (Brake Specific Fuel Consumption) ratios, as such they may not represent the true maximum power the car can make for a given fuel.

BMW N2x LPFP Data

N2x LPFP Max WHP 93 OCT (98 RON)

Pump ModelMax WHP on 93 OCT
Bosch (0 580 454 100) 200LPH @ 84psi (Stock Unit 13.5V & 13A)450
Walbro 450/460 304LPH (F90000267) @ 84psi 13.5V & 19A735
Walbro 450/460 304LPH (F90000274) @ 84psi 13.5V & 19A735
Walbro 525 390LPH (F90000285) @ 84psi 13.5V & 19A940
Bosch BR540 365LPH (F02UV0U343-01) @ 84psi 13.5V & 19.5A880

N2x LPFP Max WHP E85

Pump ModelMax WHP on E85
Bosch (0 580 454 100) 200LPH @ 84psi (Stock Unit 13.5V & 17A)400
Walbro 450/460 304LPH (F90000267) @ 84psi 13.5V & 23.5A605
Walbro 450/460 304LPH (F90000274) @ 84psi 13.5V & 23.5A605
Walbro 525 390LPH (F90000285) @ 84psi 13.5V & 23A775
Bosch BR540 365LPH (F02UV0U343-01) @ 84psi 13.5V & 24A725

N2x EKP Max Operating Parameters

EKP ModelEKP Parameter
Stock (16147411596) (EKPM3)13.5V & 18A
BPM413.5V & 40A (Optionable to 50A)
ET3 Stage 113.5V & 22A
ET3 Stage 213.5V & 35A

BMW N2x HPFP Data

N2x HPFP Max WHP (lowest to highest)

Pump ModelMax WHP 93 OCT @7000 RPMMax WHP E85 @7000 RPM
N2x HDP5 (Stock)374307
N2x HDP5 EVO (B4x/B58 HPFP)394322
N2x HDP6 (B58/48TU HPFP)489401
Dorch Stage 1 / LT1 / Nostrum LT1508417
Spool FX150558457
Dorch Stage 1.5591484
Spool FX170591484
Dorch Stage 2 / LT4 / Nostrum LT4644528
Dorch Stage 2.5657539
Spool FX180665545
Spool FX200764626
Dorch Stage 3773634
Spool FX4001000826

Detailed HPFP Specifications

HDP5 (Stock)

Bore:
9.0mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
0.878 CC/Rev
Delta Over Stock:
100%
Min Volumetric Efficiency:
85%
Max Rail Pressure:
20mPa / 2900PSI
Built-in Filter:
Yes
LPH @7000 RPM (85%):
157 LPH
LPH @3500 RPM (85%):
78 LPH
Max Flow @7000 RPM:
184 LPH
Max Flow @3500 RPM:
92 LPH
Max HP (93 OCT)
374 WHP
Max HP (E85)
307 WHP

HDP6 (B58/48TU HPFP)

Bore:
9.0mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.084 CC/Rev
Delta Over Stock:
123%
Min Volumetric Efficiency:
90%
Max Rail Pressure:
35mPa / 5000PSI
Built-in Filter:
Yes
LPH @7000 RPM (85%):
205 LPH
LPH @3500 RPM (85%):
102 LPH
Max Flow @7000 RPM:
228 LPH
Max Flow @3500 RPM:
114 LPH
Max HP (93 OCT)
489 WHP
Max HP (E85)
401 WHP

Dorch Stage 1 / LT1 / Nostrum LT1

Bore:
10.5mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.194 CC/Rev
Delta Over Stock:
136%
Min Volumetric Efficiency:
85%
Max Rail Pressure:
20mPa / 2900PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
213 LPH
LPH @3500 RPM (85%):
107 LPH
Max Flow @7000 RPM:
251 LPH
Max Flow @3500 RPM:
125 LPH
Max HP (93 OCT)
508 WHP
Max HP (E85)
417 WHP

Dorch Stage 1.5

Bore:
11.0mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.311 CC/Rev
Delta Over Stock:
149%
Min Volumetric Efficiency:
90%
Max Rail Pressure:
25mPa / 3600PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
248 LPH
LPH @3500 RPM (85%):
124 LPH
Max Flow @7000 RPM:
275 LPH
Max Flow @3500 RPM:
138 LPH
Max HP (93 OCT)
591 WHP
Max HP (E85)
484 WHP

Dorch Stage 2 / LT4 / Nostrum LT4

Bore:
11.5mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.432 CC/Rev
Delta Over Stock:
163%
Min Volumetric Efficiency:
85%
Max Rail Pressure:
25mPa / 3600PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
270 LPH
LPH @3500 RPM (85%):
135 LPH
Max Flow @7000 RPM:
301 LPH
Max Flow @3500 RPM:
151 LPH
Max HP (93 OCT)
644 WHP
Max HP (E85)
528 WHP

Dorch Stage 2.5

Bore:
12.0mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.561 CC/Rev
Delta Over Stock:
178%
Min Volumetric Efficiency:
90%
Max Rail Pressure:
35mPa / 5000PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
295 LPH
LPH @3500 RPM (85%):
147 LPH
Max Flow @7000 RPM:
328 LPH
Max Flow @3500 RPM:
164 LPH
Max HP (93 OCT)
657 WHP
Max HP (E85)
539 WHP

Dorch Stage 3

Bore:
12.65mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.734 CC/Rev
Delta Over Stock:
198%
Min Volumetric Efficiency:
90%
Max Rail Pressure:
35mPa / 5000PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
328 LPH
LPH @3500 RPM (85%):
164 LPH
Max Flow @7000 RPM:
364 LPH
Max Flow @3500 RPM:
182 LPH
Max HP (93 OCT)
773 WHP
Max HP (E85)
634 WHP

Spool FX150

Bore:
11mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.311 CC/Rev
Delta Over Stock:
149%
Min Volumetric Efficiency:
85%
Max Rail Pressure:
20mPa / 2900PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
234 LPH
LPH @3500 RPM (85%):
117 LPH
Max Flow @7000 RPM:
275 LPH
Max Flow @3500 RPM:
138 LPH
Max HP (93 OCT)
558 WHP
Max HP (E85)
457 WHP

Requires S63TU EU5 Injector Upgrade for E85

Spool FX170

Bore:
11mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.311 CC/Rev
Delta Over Stock:
149%
Min Volumetric Efficiency:
90%
Max Rail Pressure:
25mPa / 3600PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
248 LPH
LPH @3500 RPM (85%):
124 LPH
Max Flow @7000 RPM:
275 LPH
Max Flow @3500 RPM:
138 LPH
Max HP (93 OCT)
591 WHP
Max HP (E85)
484 WHP

Spool FX180

Bore:
12.0mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.561 CC/Rev
Delta Over Stock:
178%
Min Volumetric Efficiency:
85%
Max Rail Pressure:
25mPa / 3600PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
279 LPH
LPH @3500 RPM (85%):
139 LPH
Max Flow @7000 RPM:
328 LPH
Max Flow @3500 RPM:
164 LPH
Max HP (93 OCT)
665 WHP
Max HP (E85)
545 WHP

Spool FX200

Bore:
12.5mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.694 CC/Rev
Delta Over Stock:
193%
Min Volumetric Efficiency:
90%
Max Rail Pressure:
25mPa / 3600PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
320 LPH
LPH @3500 RPM (85%):
160 LPH
Max Flow @7000 RPM:
356 LPH
Max Flow @3500 RPM:
178 LPH
Max HP (93 OCT)
764 WHP
Max HP (E85)
626 WHP

Spool FX400

Bore:
13.5mm
Stroke:
4.6mm
Lobes:
3
Max Volume:
1.975 CC/Rev
Delta Over Stock:
225%
Min Volumetric Efficiency:
90%
Max Rail Pressure:
25mPa / 3600PSI
Built-in Filter:
No
LPH @7000 RPM (85%):
373 LPH
LPH @3500 RPM (85%):
187 LPH
Max Flow @7000 RPM:
415 LPH
Max Flow @3500 RPM:
207 LPH
Max HP (93 OCT)
1000 WHP
Max HP (E85)
826 WHP
Injector Flow DataB58TU HPFP Retrofit DIY