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Fuel Injector Upgrade Guide

Raceworks > Fuel & Oil System > Injectors > Fuel Injector Upgrade Guide

Use the search function (link at the bottom of this page) to select a suitable performance injector and injector accessories from the Raceworks range for your application.

Power figures which have been quoted are to be used as a guide only.

For naturally aspirated vehicles running a base fuel pressure of 3bar, they are fairly accurate. For naturally aspirated vehicles running a base pressure of 4bar, add a further 10% to the power figures quoted.

For forced inducted vehicles, power figures quoted are based off a fixed fuel pressure of 3bar, therefore in reality, the injectors will support more power, as fuel pressure increases with manifold pressure, allowing the injectors to flow more than has what been accounted for in these calculations. In these instances, we recommend you add a further 10% to the power figures quoted for every bar of pressure the fuel system will flow at above 3bar.

See below for example –

Power figures quoted
Normally Aspirated – 575RWKW
Normally Aspirated E85 – 420 RWKW
Normally Aspirated Methanol – 290 RWKW
Forced Inducted – 440 RWKW
Forced Inducted E85 – 315 RWKW
Forced Inducted Methanol – 145 RWKW

Base fuel pressure of 4bar (Add 10% to the above figures)
Boost pressure of 1bar (Add 10% to the above figures)

Final estimate –
Normally Aspirated – 690 RWKW
Normally Aspirated E85 – 505 RWKW
Normally Aspirated Methanol – 350 RWKW
Forced Inducted – 530 RWKW
Forced Inducted E85 – 380 RWKW
Forced Inducted Methanol – 175 RWKW

Figures stated are what the injectors will support, NOT what your vehicle will make by upgrading to these injectors. Raceworks will not be held responsible if your injectors are unable to support the power stated. For more information it is recommended that you discuss with your tuner.

All power figures have been rounded to the nearest 5KW. The following drivetrain losses have been used in these calculations –

Front Wheel Drive – 15%
Rear Wheel Drive – 20%
All Wheel Drive – 25%

Note there are exceptions to this, such as Toyota MR2 which is rear engine/rear wheel drive, and a loss of 15% has been used in the calculations.

Where extended nose injectors have been used in a particular vehicle from factory, only extended nose injectors have been recommended as replacement, and extended nose injectors have only been recommended for these applications, even though they can be used in many applications that run standard nozzle injectors from factory. All Raceworks injectors are High Impedance, and can be used in both low and high impedance configurations. Note when installing onto a vehicle that has low impedance injectors from factory, it is recommended that resistor packs are disconnected/bypassed. Again, consult your tuner/engine builder.

Should you have an engine that is not listed here and would like info on the compatibility of Raceworks injectors, please contact your nearest stockist.

Fuel & Oil System
Accessories
E85 Safe Plastic Fuel Pump Tubing
120mm long, 8mm-10mm ID
160mm long, 8mm ID
160mm long, 10mm ID
225mm long, 8mm ID
240mm long, 10mm ID
Injector Extensions
3/4-> Full Length 14mm-11mm
3/4-> Full Length 14mm-14mm
Short ->3/4 14mm-11mm
Short ->3/4 14mm-14mm
Short -> Full Length 14mm-11mm
Short -> Full Length 14mm-14mm
Retaining Clips PK8
Injector Lower Sleeve Kit
Injector O-Rings
Lower Injector Mounting Bosses
Mazda 13BT S4 Onwards (4 Pack)
Nissan SR20 S13/180SX REDTOP (4 Pack)
Toyota 1JZ/2JZ (6 Pack)
R33 RB25DET/ S14 S15 SR20DET (6 Pack)
Universal 14mm
Brackets
Carburettor Throttle Cable Brackets
Pierburg/Ti Automotive (Walbro) Pump Brackets
43.5mm Black Single Pump Bracket
43.5mm Black Twin Pump Bracket
Fuel Filter Brackets
50mm Black Single Filter Bracket
Raceworks/Bosch Pump Brackets
60mm Black Single Pump Bracket
60mm Black Twin Pump Bracket
Carburettor Fuel Line Kits
Holley Dual Feed
Demon Dual Feed
Dominator Dual Feed
Fuel Pressure Regulators
EFI 700HP 3port – FPR-501BK
EFI 800HP 3port – FPR-502BK
Accessories
Replacement FPR Diaphragm
Hangers
Single/Twin Fuel Pump Hanger
Injectors
Fuel Injector Upgrade Guide
980cc Raceworks 3/4 Length – INJ-213
980cc Raceworks Full Length – INJ-505
980cc Raceworks Full Length – INJ-505-11mm
980cc Raceworks Short with Extended Nose – INJ-506-11mm
1000cc Raceworks 3/4 Length – INJ-501
1100cc Raceworks Short – INJ-500
1200cc Raceworks 3/4 Length – INJ-503
1200cc Raceworks 3/4 Length – INJ-504
1200cc Raceworks 3/4 Length – INJ-504-11mm
1200cc Raceworks Short With Extended Nose – INJ-502
1550cc Bosch Motorsport Short – INJ-223
Injector Extensions
3/4-> Full Length 14mm-11mm
3/4-> Full Length 14mm-14mm
Retaining Clips PK8
Short ->3/4 14mm-11mm
Short ->3/4 14mm-14mm
Short -> Full Length 14mm-11mm
Short -> Full Length 14mm-14mm
Injector Lower Sleeve Kit
Injector Mounts
Injector O-Rings
Fuel Filters
Filters & Housings
Barbed Inline Filters
Long Filter Housing
Standard Filters
Replacement Filter Elements & O-Rings
Bronze Elements
Standard and Long Elements
Replacement O-Ring for Fuel Filters
MRA Conversion Kits
Steel Tank VE MRA Conversion Kit
Steel Tank VT MRA Conversion Kit
Steel Tank VX MRA Conversion Kit
Oil Filters
Billet Lifetime Filters
Replacement Filter Elements
Pumps
High Pressure In-Tank Pumps
340LPH E85 In-tank Pump (Inline) – EFP-500
265LPH E85 In-tank Pump (Inline) – EFP-501
High Pressure External Pumps
250LPH E85 External Pump – EFP-506
250LPH External Pump – EFP-502
Oil Pumps
160LPH Oil Scavenge Pump – RWM-002
E85 Safe Plastic Fuel Pump Tubing
120mm long, 8mm-10mm ID
160mm long, 8mm ID
160mm long, 10mm ID
225mm long, 8mm ID
240mm long, 10mm ID
Replacement Fuel Pump Strainers
Pressure Gauge
0-100PSI Liquid Filled Pressure Gauge
Rails
Bare Extrusion
A-Series
A-Series Large Bore
C-Series
Mounting Hardware
Clevises & Posts
Clevis
Posts
External Injector Mounts
Chevrolet/Holden
VE Commodore HSV & Corvette C6 Z06 (7.0L)
VE-VF Commodore LS2/LS3/L76/L77/L98 (6.0/6.2L)
VL Commodore RB30 (3.0L)
VL-VT Commodore 304 (5.0L)
VT-VZ Commodore GEN-III LS1 (5.7L)
Ford
EF-BF Falcon (4.0L)
FG Falcon (4.0L)
Mazda
Cosmo JC 13BT
RX-7 FC Series 4/5 13BT
RX-7 FD Series 6/7/8 13BT
Mitsubishi
Lancer Evolution IV – IX (2.0L)
Lancer Evolution X (2.0L)
Nissan
Patrol Y61 GU (4.5L)
Patrol Y61 GU (4.8L)
Primera P11 (2.0L)
Silvia/180SX S13, Pulsar N14/N15 and NX SR20 (2.0L)
Silvia/200SX S14/S15 SR20 (2.0L)
Skyline DR30 (2.0L)
Skyline GT-R R32/R33/R34 & Stagea C34 RB26DETT (2.6L)
Skyline R31 RB30 (3.0L)
Skyline R33 & Stagea C34 Series 1 RB25DET (2.5L)
Subaru
BRZ (2.0L)
Impreza WRX EJ20 V3/4 MY97/98 (2.0L)
Impreza WRX EJ20 V5/6 MY99/00 (2.0L)
Toyota
86 (2.0L)
Supra JZA80 & Aristo 2JZGTE (3.0L)