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Motec is fine if you dont want to run over 10,000 RPM (Which is the majority of us)

Dave has had great success with autronic.

Power FC is fine if you like AFM's. (although there is a version that allows you to remove them, i think its the D-Jetro version?).

Personally I would never run a piggy back or SAFC. Not that their bad, they serve their purpose, I would just rather spend my money only once on management.

These are ther only options I personally would opt for. Of course it also depends on your mods/power level.

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i prefer an AFM over a map sensor for accuracy and scalabilty without having to retune. Therefore motec is out.

However if you are running HUGE amounts of boost (15PSI plus) then the AFM tends to give incorrect readings or is not that effective, in which case you'll need a map sensor.

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i prefer an AFM over a map sensor for accuracy and scalabilty without having to retune. Therefore motec is out.

Dude its not as if a Motec 'falls out of tune', so i dont know why a motec would be out, apart from the cost.

ever seen an AFM fail and lean out an engine? not nice. Bang for your buck would without question be the Power FC.

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I assumed since the motec used a map sensor (which dosen't measure airflow directly and uses on the fly calculations), it'd have to be re-calibrated even if you made a small change like an intake mod.

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i prefer an AFM over a map sensor for accuracy and scalabilty without having to retune. Therefore motec is out.

However if you are running HUGE amounts of boost (15PSI plus) then the AFM tends to give incorrect readings or is not that effective, in which case you'll need a map sensor.

Shan 15psi of boost is not really HUGE anounts of boost for a afm.

There are cars running 2 bar boost with afm's without problems.

AFM is also good for closed loop and better fuel economy on a daily driven car

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yeah true 15psi isnt huge for some cars (bad placement on my part). But on my old 180sx whenever we upped the boost over 15 PSI I always got some errors in the AFM. At about 14PSI it seemed to be OK. Then again I was using the stock standard CA18DET AFM, and not a Z32 one or even a skyline one.

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