Injector Size Guide

Using the guides below you can quickly estimate your required injector size based on the following 

 

• Fuel - Petrol or E85

• Desired Boost pressure BSFC

• Target Power (KW)

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General Rules

• The more power increases, the more important balanced injectors become.

• Multi-spray pattern injectors provide better atomization and smoother idle

• Lower rail pressure improves fuel pump performance but decreases injector flow

• Higher rail pressure improves atomisation and injector flow

• E85 needs 35% more flow at the same power as petrol. 

• Never buy from non-specialists or non-genuine sources.

 

Remember

1. One lean cylinder will destroy your motor

2. Monitor rail pressure in standalone ECU's (set protections)

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We made this chart for Aus Dyno ❤️ We're not responsible for your fuel system not working after following this guide. We are if it did work!! #ausdyno