Orbit tuning fuel load

Dan Ong

Well-Known Member
Is there a recommended fuel load when tuning orbit? Considering tuner + driver in the car.

Any bro can advise?

Thanks in advance...
 
Re: Orbit tuning fuel load

There is no need to get any recommended load in the car as it is quite impossible to get the very same parameters on every run. The traffic and weather conditions will vary too much to mean the same numbers. What is more important is to ensure that during tuning, you kit as many load sites as possible to reduce the amount estimations between load sites. After about 1 month of driving or so, you may need to recheck the tuning cos the LTFT will have kicked in fully and cause some of the parameters to drift. (Assuming that the OBIT is conected to alter the O2 sensor signal)

Cheers, hope this helps
 
Re: Orbit tuning fuel load

Oops sorry, i got verbal LS..

OK, I try and explain. The amount of load in the car is not important.

All ECUs base their fueling and ignition parameters from a map which is basically a table of values. On one side is RPM and the other side is load which is based on a calulated figure resultant from throttle position and or air flow. Based on normal driving, the tuner will never be able to tune all the various sites as it is impossible for a car to remain at super high loads with out accelerating or at high RPMs without any throttle input. Therefore it is more important to choose roads that offer the greatest amount of tuning.

Hope this helps.
 
Re: Orbit tuning fuel load

Hi

Just to add on, the TARGETS (which is the permanently fixed values in the map, can be ignition timings, AFR, etc..) has to be adjusted for your perferred gains either at the low end or high end.

Once above targets are tuned, your long term and short term fuel trim will not be effected which is always called the fuel adaptation.

Only by flashing the stock ECU or tuning a standalone ECU can alter the TARGETS!!!

Cheers!
 

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