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Bosch 731cc High Resistance Fuel Injector with Long Pintle

SKU:
INJBOS731L_LZ0O
Quantity Unit Price (Inc GST)
1 + $92.50 ($106.38)
10 + $87.88 ($101.06)
20 + $83.25 ($95.74)
30 + $80.94 ($93.08)
  • Bosch 731cc long pintle fuel injector 0280158112
  • Bosch 731cc long pintle fuel injector 0280158112
  • Bosch 731cc long pintle fuel injector 0280158112
  • Bosch 731cc long pintle fuel injector 0280158112
  • Bosch 731cc long pintle fuel injector 0280158112

Not sure you have the right injectors?

Try our brand new injector calculator

Click this banner or scroll down to our new Injector Calculator. 6 quick questions about your application and we will find you a set of flow-tested injectors, matched within 1% from our range in stock.

Not sure you have the right injectors?

Try our brand new injector calculator

Click this banner or scroll down to our new Injector Calculator. 6 quick questions about your application and we will find you a set of flow-tested injectors, matched within 1% from our range in stock.
$92.50 ($106.38) Excl. GST (Incl. GST)
Unit of Measure:
each
Purchase Increment:
1
Minimum Purchase:
1 unit
We ship worldwide at competitive pricing. Shipping calculated at checkout.

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Description

Bosch 731cc High Resistance Fuel Injector with Long Pintle

Dynamically flow tested in New Zealand by us, Motorsport Electronics (MSEL), so your set of injectors is matched within 1% across the entire set.

  • Measures 39mm from Middle-of-Top O-Ring to Middle-of-Bottom O-Ring
  • Measures 24mm from Top-of-Bottom O-Ring to Tip-of-Injector
  • 14mm Top and Bottom O-Ring
  • 731cc/min at 3 bar (43.5psi)
  • Suitable for use with ethanol, methanol as well as most oil based fuels
  • Modern design offering extremely good idle control
  • Full injector deadtime/battery compensation information is supplied with each set of injectors
  • High impedance (high resistance) so no need to add ballast resistors on some ECUs
  • Can be supplied with lower adaptors to fit most 14mm lower o-ring applications
  • Unmodified Bosch injector
  • Single Cone Spray Pattern
  • Short length injector

Lower adaptor is an option.

Please note that this injector is a stubby short injector.  With a lower adapter it takes to to being a 3/4 length injector.  Therefore depending on whether you choose a bottom cap will vary what top caps are available to you.

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Injector Calculator

MSEL Injector Calculator

Not sure what size injector you need?

Answer 6 quick questions and we will match you to a flow tested set of injectors from our range.

Takes less than a minute with in-stock results, all individually flow tested before shipping

Example Result - your results may vary
466 cc/minper injector
500 KW| 4 CYL| PETROL| NA| 4 BAR
  • Xspurt 1170cc Stubby
    RECOMMENDED
  • Xspurt 1000cc Stubby
    BORDERLINE
  • Bosch 1550cc Stubby
    OVER-SIZED
Step 1 of 4 — Engine
How many cylinders does your engine have?
cylinders
Step 2 of 4 — Fuel & Induction
What fuel are you running?
What type of induction does your engine use?
Step 3 of 4 — Pressure & Duty Cycle
What fuel pressure are you running?
bar

4.0 bar = 58 PSI

What is your maximum injector duty cycle?
%

ℹ We recommend a maximum below 80% to leave headroom for tuning. Different applications might want to see a lower duty cycle (ie 65%). This is best discussed with your engine builder and/or tuner.

What is your target lambda?
λ

ℹ Lower lambda = richer mixture = more fuel required. Default is set based on your fuel & induction selection. Adjust if you know your target.

Step 4 of 4 — Power Target
What is your target engine power?
—
cc/min
per injector
× cylinder
Calculation Inputs
Cylinders —
Fuel —
Induction —
Fuel Pressure —
Max Duty Cycle —
Target Lambda —
Target Power —
Injector Flow @ 4.0 bar Duty Cycle Status
⚠ Fitment Note: Before purchasing, please confirm that the injector body length (Stubby / Medium / Long / Full) and electrical connector type are compatible with your engine's fuel rail and wiring harness. Consult your engine builder or tuner if unsure.

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