Frequently Asked Questions Archives

RPM hysteresis

http://fitechefi.com/faq/rpm-hysteresis/

If the RPM fluctuates with nitrous on or off, it won’t flutter on and off unless the RPM varies by this much.

N2O MIN RPM

http://fitechefi.com/faq/n2o-min-rpm/

Above this RPM, nitrous will be turned on.

N2O MAX RPM

http://fitechefi.com/faq/n2o-max-rpm/

Above this RPM, nitrous will turn off.

N2O MAX Temp

http://fitechefi.com/faq/n2o-max-temp/

Above this Coolant temperature, nitrous will be disabled.

N2O MIN Temp

http://fitechefi.com/faq/n2o-min-temp/

Above this Coolant temperature, nitrous can be turned on.

N2O MIN TPS

http://fitechefi.com/faq/n2o-min-tps/

Above this throttle position, nitrous can be turned on.

N2O re-arm TPS

http://fitechefi.com/faq/n2o-re-arm-tps/

If the Nitrous is disabled from being too lean, and throttle is closed beyond this, it will be re-enabled again – this is to prevent the nitrous from turning off and on repeatedly while the throttle is held open.

AFR check delay

http://fitechefi.com/faq/afr-check-delay/

After the Nitrous is turned on, a few moments of time are allowed to let the AFR settle, in case there is a quick lean bit at the beginning of Nitrous operation.

Lean disable AFR

http://fitechefi.com/faq/lean-disable-afr/

If the AFR is leaner than this for the prior “Lean disable time” while Nitrous is on, the Nitrous will be disabled.

Lean disable time

http://fitechefi.com/faq/lean-disable-time/

If the AFR is lean for this much time while Nitrous is on, the Nitrous will be disabled to possibly protect the engine.

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