Transient Throttle Enrich

Transient Throttle Enrich

Enrich Rate



The Enrich Rate table is used to proportion how much of the Enrich Amount tables are applied. This calculation is based on the rate of sensor movement while opening the throttle (X-axis), and sensor position at the start of the movement (Y-axis). This table is often confused as being the Amount table. Up to 3D mapping is available.

Enrich Amount (Sync)



This table sets how much additional fuel is added during a transient event via normal sequential pulses, and multiplies with the Enrich Rate table to give a final amount. Typically mapped over RPM.
Synchronous refers to additional fuel being added to the normal sequential fuel output, and this is the more efficient way to deliver the additional enrichment required for transient conditions.
Typical values are 25 to 50 at low rpm, 100 to 200 for high rpm.
Although not true VE, the numbers are a VE approximation where larger numbers will give more fuel enrichment, and lower numbers will give less fuel enrichment. Up to 3D mapping is available.

Enrich Amount (Async)



This table sets how much additional fuel is delivered during a transient event via asynchronous mean, and multiplies with the Enrich Rate table to give a final amount. Typically mapped over RPM.
Asynchronous refers to additional fuel pulses being added between the normal sequential pulses. This is typically set up after the Sync table tuning has been completed.
Although not true VE, the numbers are a VE approximation where larger numbers will give more fuel enrichment, and lower numbers will give less fuel enrichment. Typically used when injectors are located far from the inlet valves, or in small amounts for engines with large ports or poor airflow at part throttle. Also commonly used for Rotary engine applications. Up to 3D mapping is available.

Ign Corr



The Amount of ignition timing correction to be applied during transient throttle conditions. Both advance (positive numbers) and retard (negative numbers) can be used with this table. This correction will decay over the time set for the Ign Corr Decay Time. Up to 3D mapping is available.


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