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| NAPS L-series Carburetor Specifications 1975 service manual 330 | NAPS L-series Carburetor Specifications 1975 service manual 330 | ||
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| * Automatic [[Choke]] | * Automatic [[Choke]] | ||
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| * 127 pages | * 127 pages | ||
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Revision as of 03:39, 27 February 2011
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.
Contents |
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
32-page publicity booklet from 1 April 1975
L-Series
NAPS L-series Carburetor Specifications 1975 service manual 330
- Catalytic Converter
- EGR
- Air pump
- Temp-controlled air cleaner
- Charcoal Canister
- Automatic Choke
B210
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
NAPS-Z
To meet 53-year (1978) emission standards, NAPS-Z was introduced. Fast burn combustion chamber with dual spark plugs to reduce noise. To improve power a turbocharged option engine was available (Z18T).
High fuel efficiency is realized by the adoption of a fast-burn combustion system, made possible by the development of a high-speed swirl system and twin-plug combustion chambers. Advanced EGR with a VVT valve obtains precise control. EGR distribution is improved by modification to the inlet manifold.
However, regular NAPS was modified to meet the 1978 emission standards, so the NAPS-Z was not entirely necessary. For example, VVT was adapted to the A-series engines with similar effect.
Timeline
Oct 27, 1975: B120 Datsun 1200 Pickup B120
- H-emissions (H-B120) 50年度排出ガス規制適合。
- 50th-year relevant regulations of emissions (Showa 50 = 1975).
- Nissan catalyzed oxidation of exhaust gas cleaning system "NAPS" adopted