NAPS

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Nissan Anti-Pollution System (NAPS) was the market name for Nissan's collection of Emission controls. Sometimes confused with the Nissan Z Engine. NAPS was used in 1976 on many types of Nissan engines, including A14 engines. A catalytic converter was the heart of the NAPS system.

Overview

NAPS日産排出ガス清浄化システム -- Nissan NAPS exhaust gas cleaning system.

エンジン改良＋酸化触媒」- slogan "Improved engine + oxidation catalyst system"

reference: http://www.nissan.co.jp/MUSEUM/SILVIA/S10/main.html

NAPS L-series Carburetor Specifications 1975 service manual 330

NAPS A-series Engine

• 127 pages

NAPS emblem for Japan-market Datsun B210

• 84890-F2000 MARK-REAR 'NAPS'

マーク　エンブレム　NAPS

Timeline

Oct 27, 1975: B120 Datsun 1200 Pickup B120

• H-emissions (H-B120) 50年度排出ガス規制適合。
• 50 relevant regulations of emissions.
• Nissan catalyzed oxidation of exhaust gas cleaning system "NAPS" adopted