Pops and bangs (FL5/DE5)

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Pops and bangs is the common term for extra exhaust sound on the overrun from retard ignition and extra fuel injection which burns through the exhaust system.

 

The DE5 Integra Type S has pops and bangs from the factory.  These can be added to the FL5 Civic Type R.

 

Factory protection is used to keep the catalyst temperature within factory limits but some caution must be used if extending the duration and/or retarding the ignition further.

 

popsandbangsfl5

 

Parameters

Enabled - enables/disables pops and bangs

Comfort / Sport / R Mode - enables/disables for each mode.  The Integra Type S only has pops and bangs in S Mode from the factory.

Duration - the duration of the ignition cut / extra fuel in milliseconds.

 

Tables

Base Ignition - the burn limit minimum timing by air charge and rpm

Retard comfort / sport / r mode - addition ignition retard applied.

 

eg If the base ignition is 5 degrees and the retard is -20 degrees then the timing will be -15 degrees.

 

Fuel cutoff delay - the delay before the fuel is cut on overrun, by gear and rpm

 

A longer delay will give longer pops and bangs but will surge in lower gears and use slightly more fuel.