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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 on my types of Nissan engines, including A14 engines. | + | '''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 from late 1975 on many types of Nissan engines, including A12 and A14 engines. A catalytic converter was the heart of the NAPS system. |
| - | NAPS emblem on Japan-market Datsun [[B210]] | + | = Overview = |
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22862 http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/uploads/photos/22862.jpg] | + | NAPS日産排出ガス清浄化システム -- Nissan NAPS exhaust gas cleaning system. |
| - | * 84890-F2000 EMBLEM 'NAPS' | + | |
| + | 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 | ||
| + | <br>{{Album|22866}} | ||
| + | |||
| + | 1975 advertisement | ||
| + | <br>{{Photo|Motor_Fan75.jpg|Datsun%20Misc/NAPS}} | ||
| + | |||
| + | = L-Series = | ||
| + | NAPS L-series Carburetor Specifications 1975 service manual 330 | ||
| + | <br>{{Album|22863|jpg|256}} | ||
| + | * Catalytic Converter | ||
| + | * [[EGR]] | ||
| + | * Air pump | ||
| + | * Temp-controlled air cleaner | ||
| + | * [[Charcoal Canister]] | ||
| + | * Automatic [[Choke]] | ||
| + | 1976 Cedric Model 330 trunk lid emblem (L28 powered hardtop) | ||
| + | <br>[http://www.eonet.ne.jp/~kitabaya/330/exterior.htm http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%20Misc/NAPS/Cedric_L28_S51.jpg] | ||
| + | |||
| + | 1980 280ZX | ||
| + | <br>{{Photo|S130_NAPS_Z.jpg|Datsun%20Misc/NAPS}} | ||
| + | |||
| + | = A-series = | ||
| + | NAPS A-series Engine (127 pages) | ||
| + | <br>{{Album|22865}} | ||
| + | |||
| + | == Datsun 1200 == | ||
| + | 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 | ||
| + | |||
| + | {{Album|23807}} | ||
| + | <br>昭和50年10月 H-B120型車（ ダットサン　サニートラック1200・ＮＡＰＳ）の | ||
| + | 販売に伴う整備変更点の紹介のサービス回章　11ページ | ||
| + | |||
| + | {{Album|23894}} | ||
| + | |||
| + | {{translate|燃費・走行性能を重視した | ||
| + | <br>[[NAPS]] | ||
| + | <br>日産排出ガス清浄化システ|Fuel economy - Emphasis on driving performance | ||
| + | <br>[[NAPS]] | ||
| + | <br>Nissan exhaust gas purification system}}{{AlbumLinkH|1979_Sunny_Truck_1200_sales_manual|28512|sales|height=282}} | ||
| + | |||
| + | == B210 == | ||
| + | NAPS emblem for Japan-market Datsun [[B210]] | ||
| + | <br>{{Album|22864}} | ||
| + | |||
| + | {{Album|23018}} | ||
| + | |||
| + | マーク　エンブレム　NAPS | ||
| + | |||
| + | = NAPS-Z = | ||
| + | To meet 53-year (1978) emission standards in the larger four cylinder engines, NAPS-Z was introduced.Engine. Fast burn combustion chamber with dual spark plugs to reduce noise. This head was fitted to the [[L-series Engine Swap|L-series block]] and renamed [[Nissan Z Engine|Z-series]]. To improve power a turbocharged option engine was available (Z18T). | ||
| + | |||
| + | {{PB2|nn151|Nissan_Boy85|Nissan%20720/For%20Sale|IMG_1272.jpg}} | ||
| + | |||
| + | 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. | ||
| + | |||
| + | 4 cylinders, 8 sparkplugs | ||
| + | <br>{{Album|24559}} | ||
| + | |||
| + | 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. | ||
| + | |||
| + | = NAPS-X = | ||
| + | 1982 Nissan Stanza (T11) -- the first Nissan-badged car sold in USA -- with trapezoidal-shaped combustion chambers for California models. In 1983 NAPS-X was fitted to all Stanzas. 46 mpg highway, 32 mpg city was very impressive. This was basically the same [[Fuel Economy]] as the smaller Datsun [[B310]] (the T11 was a compact car, the B310 a sub-compact). | ||
| + | |||
| + | <blockquote>46 mpg (US gallon) | ||
| + | <br>5.11 liter/100 km</blockquote> | ||
| + | |||
| + | NAPS-X CA20E 2.0 1974cc compared to NAPS-Z Z20E | ||
| + | * Shorter than Z20E | ||
| + | * Narrower | ||
| + | * 77 pounds lighter | ||
| + | * More HP | ||
| + | * Better fuel economy | ||
| + | * 88 HP with dual plug version | ||
| + | |||
| + | {{ExtPhoto|https://i2.wp.com/www.curbsideclassic.com/wp-content/uploads/2016/05|1982-nissan-stanza-ad.jpg}} | ||
| + | |||
| + | [[Category:Emission Control And Tune-Up]]{{End}} | ||
Current revision
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 from late 1975 on many types of Nissan engines, including A12 and 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
1975 advertisement
L-Series
NAPS L-series Carburetor Specifications 1975 service manual 330
- Catalytic Converter
- EGR
- Air pump
- Temp-controlled air cleaner
- Charcoal Canister
- Automatic Choke
1976 Cedric Model 330 trunk lid emblem (L28 powered hardtop)
1980 280ZX
A-series
NAPS A-series Engine (127 pages)
Datsun 1200
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
昭和50年10月 H-B120型車（ ダットサン サニートラック1200・ＮＡＰＳ）の
販売に伴う整備変更点の紹介のサービス回章 11ページ
燃費・走行性能を重視した
NAPS
日産排出ガス清浄化システ
Fuel economy - Emphasis on driving performance
NAPS
Nissan exhaust gas purification system
B210
NAPS emblem for Japan-market Datsun B210
マーク エンブレム NAPS
NAPS-Z
To meet 53-year (1978) emission standards in the larger four cylinder engines, NAPS-Z was introduced.Engine. Fast burn combustion chamber with dual spark plugs to reduce noise. This head was fitted to the L-series block and renamed Z-series. 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.
4 cylinders, 8 sparkplugs
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.
NAPS-X
1982 Nissan Stanza (T11) -- the first Nissan-badged car sold in USA -- with trapezoidal-shaped combustion chambers for California models. In 1983 NAPS-X was fitted to all Stanzas. 46 mpg highway, 32 mpg city was very impressive. This was basically the same Fuel Economy as the smaller Datsun B310 (the T11 was a compact car, the B310 a sub-compact).
46 mpg (US gallon)
5.11 liter/100 km
NAPS-X CA20E 2.0 1974cc compared to NAPS-Z Z20E
- Shorter than Z20E
- Narrower
- 77 pounds lighter
- More HP
- Better fuel economy
- 88 HP with dual plug version
