Choosing the Right Atomizer Injector for Your Build

Comparing BC210, SD220, and Fury ST Injectors

Choosing the right high-flow fuel injector depends on your engine setup, horsepower goals, fuel type, and compatibility with your vehicle’s fuel system.

Below is a structured comparison to help you decide which injector best fits your performance needs.

Key Specifications Comparison

Feature	BC210	SD 220	Fury ST
Flow Rate	210 lb/hr	220 lb/hr @ 43.5 PSI (2433 cc/min)	Starts at 40PPH-1,525PPH
Impedance	High (varies by model)	Low OR HI (1.6 Ohm, 4.8 OHM	Low (1.6 Ohm)
Connector Type	EV1 (Jetronic/Minitimer)	EV1 (Jetronic/Minitimer)	EV1 (Jetronic/Minitimer)
Length	60mm (extended tip, 5mm longer)	60mm (extended tip, 5mm longer)	60mm (extended tip, 5mm longer)
Fuel Compatibility	Gasoline, E85, Flex Fuel Methanol Nitro	Gasoline, Methanol, Ethanol, Flex Fuel Methanol Nitro	Gasoline, Methanol, Ethanol, Flex Fuel Methanol Nitro
Spray Pattern	Multi-hole (fine atomization) 40* CONE SPRAY	Multi-hole (fine atomization) 40* CONE SPRAY	Multi-hole (fine atomization) 40* CONE SPRAY
Application	High HP street/strip	Extreme HP, turbo/supercharged NITROUS	Extreme HP, racing applications
Tuning Ease	Easy to tune, good idle	Easy to tune, good idle Linear, controllable at low PW	Easy to tune, good idle Designed for high-pressure, race
Driver Requirements	Standard (high-Z)	Peak & hold driver , STANDARD (HIGH Z) resistors	Peak & hold driver required

How to Choose

BC210:

Best for: Tuners seeking a reliable, easy-to-tune injector for high-performance street or moderate racing applications.
Pros: Good idle quality, easy to set up, fits many platforms with minor adjustments.
Cons: Not as high-flow as the other two; may not be sufficient for extreme horsepower builds.

SD220:

Best for: Extreme horsepower builds, especially those running turbo/supercharger and nitrous combinations, and alternative fuels (E85, methanol, ethanol).
Pros: High flow, genuine Siemens quality, linear performance even at low pulse widths, robust design.
Cons: Low impedance means you must use a peak & hold injector driver or add resistors if your ECU is set up for high-impedance injectors.

Fury ST:

Best for: Maximum horsepower, professional race cars, or setups needing ultra-high flow rates.
Pros: Extremely high flow capacity (up to 1,525 + lb/hr), wide atomization spray for improved mixture, designed for high-pressure and extreme builds.
Cons: Overkill for some street/strip cars, requires specialized ECU/injector driver support, extended tip may require custom fitment.

Decision Guide

Ask yourself:

What is your target horsepower?
BC210 or Up to ~3500HP.
SD220 (SD220 perfect for Pro Nitrous 959 engines).
Fury ST methanol, or pro-level racing 2000+ HP
What ECU/injector driver do you have?
Standard high-impedance driver: BC210.
Peak & hold (low-impedance): SD220 or Fury ST.
What fuel are you running?
All three support gasoline, E85, and methanol, but the SD220 and Fury ST are specifically designed for extreme fuel and horsepower demands.
Fitment:
BC210 is is 60mm with an extended tip, check clearance.
SD220 is 60mm with an extended tip, check clearance.
Fury ST is 60mm with an extended tip, check clearance.

See dimensions below:

Custom sizes of high and low impedance FURY injectors are available from 40PPH-1,525PPH. Custom sizes are made at no extra charge.

Summary Table

Use Case	Recommended Injector
High-performance street	BC210
Extreme HP, flex fuel	SD220
Professional racing	Fury ST

Final Tips

Always confirm compatibility with your intake manifold and fuel rail.
Check your ECU’s injector driver requirements (high vs. low impedance).
For street cars, prioritize idle quality and ease of tuning.
For race cars, focus on maximum flow and spray pattern.

Questions? Call us at 757-250-3773 or drop us a line at sales@atomizerfuelcomponents.com and we will be happy to help guide you.