best spot for wideband sensor?

synolimit

Either as far forward as you can.

I'm not familiar with tuning these cars but on others, richening or leaning the car out didn't give you an option to pick which side of the motor you wanted. Each injector got the same pulse width so they'd all flow equally. So it doesn't matter which side you pick.

But the car already has wide bands. When tuning, the tuner will watch those and tune accordingly. I don't know about you but watching gauges during a drag race or when NO2 is flowing is not on my mind. I'll feel or hear something blow before my eyes have time to look over and see the A/F gauge reading incorrectly. There really is no need for a A/F gauge. But a wideband is needed when tuning and when doing a run I only watch knock tables on the computer. After the runs over and if it went good, I'll check the fuel readings and lean it out or richen it up from what I'm seeing. But again your car will show the tuner that from your front most stock widebands.

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13 370z-