Magneti Marelli IWP043 329cc/min Fuel Injector

The IWP 043 “Pico" top feed injector is a standard production component, tested and selected for racing applications.

Most commonly used in many Ducati Superbike applications, it is well suited to all kinds of high performance engines. It's 329cc/min fuel delivery will support power outputs up to 60HP per cylinder, depending on fuel pressure.

The characteristics of the injector are a fast pulse response, high precision, high dynamic range and optimum fuel atomisation. These are achieved by a high performance ON-OFF actuating electromagnet with opposing expansion poles that moves an internal injector valve on high precision ground cylindrical slides, and a high precision nozzle.

The injector has a stainless steel body, a fuel-resistant plastic connector, martensitic stainless steel internal valve and an electromagnet with a low carbon content stainless steel armature.

The electrical connection to the control unit is via a Mini-Timer plastic plug.

Applications

• Ducati
  • Monster 620/750/900/1000
  • Monster 1000DS
  • Multistrada DS
  • Supersport 620/800/1000
  • Paul Smart / GT

OEM Cross Reference

DUCATI      28040071A

Technical Data

Performance - Typical

Flow.................................................. Fully open
At 3 bar.......................... 329 cc/min – 3.75g/s
At 4 bar.......................... 377 cc/min – 4.30g/s
At 5 bar.......................... 421 cc/min – 4.80g/s
Cone – Inclusive 80%.................................. 20° Typ
Linearity range (at = 4 ms pulse) ..................± 3 %
Max. fuel pressure .......................................500 kPa
Maximum duty cycle ......................................90 %
Operating temperature range...............-30...110 °C
Vibration (peak) .............................................30 g

Test conditions

Fluid .................................................................. N-Heptane
density (@ 20°C) ......................................0.684 kg/litre
Ambient and fluid temperature.......................23 °C
Power supply.................................................14 Vdc

Mechanical Characteristics

Height.........................................................47.2 mm
Outside diameter (connector excluded).......15.3 mm
Weight ...........................................................35 g
Connector angle from body ...........................45 °

Electrical Characteristics

Connector...............................Mini-Timer 2 way
Power supply...........................................8 ÷ 16 Vdc
Resistance..................................................14.5 Ω
Driver type ........................................... ON-OFF