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Adjustable FPR?????

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Old Sep 27, 2006 | 05:58 PM
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Default Adjustable FPR?????

Does anyone make one for the Z or a bracket to where you could use a Nismo FPR because my car runs rich up high and I wanted to lean it out a lil without a computer
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Old Sep 27, 2006 | 06:25 PM
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The extra RICHNESS [> 12:1 AF] is there to cool the combustion and cats in the event you try extended operation in summer heat.........to increase durability and longevity.
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Old Sep 28, 2006 | 07:08 AM
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Well my car went to 9.5:1 on the dyno..................i'd say thats quite rich for NA. Mods are Greddy Evo 2, Kinetix resonated test pipes, Kinetix v4, Injen CAI. I need something to lean it out just a lil bit
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Old Sep 28, 2006 | 08:08 AM
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9.5>10:1 is not unusal for Nissan to meet the longevity requirements of catalytic convertors and low quality US Premium fuels.

The 35 uses a non return regulation system whereas a FPR requires a return line to fuel tank............

Where was the AF measured? Tail pipe measurements always show extra richness.

Why not modify the MAF voltage to lean at very high rpms only?
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