Editing Nissan RB engine (section)

{{More citations needed|date=November 2018}}{{Infobox automobile engine
| name = Nissan RB engine
| image = RB26DETT R34.jpg
| caption = RB26DETT in an [[Nissan Skyline GT-R#R34|R34 Skyline GT-R]]
| manufacturer = [[Nissan]] ([[Nissan Machinery]])
| production = 1985–2004 (original)<br>2019–present (new production)<ref name=2019a>{{cite web|url=https://www.motorauthority.com/news/1122339_nissan-skyline-gt-rs-rb26-engine-back-in-production|title=Nissan Skyline GT-R's RB26 engine back in production|first=Viknesh|last=Vijayenthiran|date=March 29, 2019|publisher=Motor Authority|access-date=April 16, 2019|archive-date=April 21, 2019|archive-url=https://web.archive.org/web/20190421103038/https://www.motorauthority.com/news/1122339_nissan-skyline-gt-rs-rb26-engine-back-in-production|url-status=live}}</ref><ref name=2019b>{{cite web|url=https://www.autoblog.com/2019/03/28/nissan-legendary-rb26-engine-back-in-production/|archive-url=https://web.archive.org/web/20190329094800/https://www.autoblog.com/2019/03/28/nissan-legendary-rb26-engine-back-in-production/|url-status=dead|archive-date=2019-03-29|title=Nissan puts legendary RB26 inline-six engine back into production|first=Chris | last = Chin|date=2019-03-28|publisher=Auto Blog}}</ref>
| configuration = [[Straight-six]]
| displacement = {{convert|1998|cc|L CID|1|abbr=on|order=flip}}<br>{{convert|2428|cc|L CID|1|abbr=on|order=flip}}<br>{{convert|2498|cc|L CID|1|abbr=on|order=flip}}<br>{{convert|2568|cc|L CID|1|abbr=on|order=flip}}<br>{{convert|2770|cc|L CID|1|abbr=on|order=flip}}<br>{{convert|2962|cc|L CID|1|abbr=on|order=flip}}<br>
| bore = {{convert|78|mm|2|abbr=on}}<br>{{convert|86|mm|2|abbr=on}}<br>{{convert|87|mm|2|abbr=on}}
| stroke = {{convert|69.7|mm|2|abbr=on}}<br>{{convert|71.7|mm|2|abbr=on}}<br>{{convert|73.7|mm|abbr=on}}<br>{{convert|77.7|mm|2|abbr=on}}<br>{{convert|85|mm|2|abbr=on}}
| valvetrain = [[SOHC]] 2 valves x cyl.<br>[[DOHC]] [[Multi-valve#Four valves|4 valves x cyl.]] with [[N-VCT|NVCS]]
| turbocharger = Single [[Garrett AiResearch|Garrett]] T3; Twin Garrett T28-type ceramic with [[intercooler]] (RB26DETT)
| coolingsystem = [[Radiator (engine cooling)|Water-cooled]]
| fuelsystem = [[Carburetor]]<br>[[Electronic fuel injection|Electronic Fuel injection]]
| fueltype = [[Petrol engine|Gasoline]]<br>[[Autogas]]<br>[[Liquefied petroleum gas|LPG]]
| management = [[Hitachi]], NICS, ECCS
| predecessor = [[Nissan L engine]]
| successor = [[Nissan VQ engine]]<br>[[Nissan VR engine]]
| block = [[Cast iron]]
| head = [[Aluminium]]
| compression = 7.8:1-10:1
| power = {{Convert|94-278|PS|hp kW|0|abbr=on|lk=on}}
| torque = {{convert|142-353|Nm|kg.m lbft|0|abbr=on|lk=on}}
}}
The '''RB''' engine is an [[oversquare]] 2.0&ndash;3.0&nbsp;L [[straight-6]] [[Four-stroke cycle|four-stroke]] [[Petrol engine|gasoline engine]] from [[Nissan]], originally produced from 1985 to 2004. The RB followed the 1983 [[Nissan VG engine|VG-series]] [[V6 engine]]s to offer a full, modern range in both straight or V layouts.<ref name=DF87>{{citation | title = Data File 1987 | publisher = Nissan Motor Co., Ltd. | page = 11 | location = Tokyo, Japan | date = April 1987 }}</ref> It was part of a new engine family name PLASMA (Powerful ＆ Economic, Lightweight, Accurate, Silent, Mighty, Advanced).

The '''RB''' engine family includes single overhead camshaft (SOHC) and double overhead camshaft (DOHC) engines.<ref>{{Cite web |last1=Ishida |first1=Y. |last2=Ito |first2=K. |last3=Kita |first3=Y. |last4=Kadowaki |first4=S. |date=1986-01-01 |title=Nissan's new in-line DOHC six cylinder engine and its development |osti=5702884 |url=https://www.osti.gov/biblio/5702884 |language=English}}</ref> Both [[SOHC]] and [[DOHC]] versions have an aluminium head. The SOHC versions have 2 valves per cylinder and the DOHC versions have 4 valves per cylinder; each cam lobe moves only one valve. All RB engines have [[belt drive]]n cams and a cast iron block. Most turbo models have an [[intercooled]] turbo (the exceptions being the single cam RB20ET & RB30ET engines), and most have a recirculating factory [[Blowoff valve|blow off valve]] (the exceptions being when fitted to [[Nissan Laurel|Laurels]] and [[Nissan Cefiro|Cefiros]]) to reduce compressor surge when the throttle quickly closes.

The RB engines are derived from the six-cylinder [[Nissan L engine#L20A|L20A]] engine, which has the same bore and stroke as the RB20. All RB engines were made in [[Yokohama|Yokohama, Japan]] where the [[VR38DETT]] engine was made. Some RB engines were rebuilt by Nissan's [[Nismo|NISMO]] division at the Omori Factory in Tokyo as well. All Z-Tune [[Nissan Skyline|Skylines]] were rebuilt at the Omori Factory.

After a 15-year hiatus, production of the RB series resumed in 2019.<ref>{{cite news|url=https://news.yahoo.com/nissan-apos-iconic-rb26-engine-130747708.html|title=Nissan's Iconic RB26 Engine Returns To Production|first=Tyler|last=Heatley|date=2019-04-02|publisher=Yahoo News|access-date=2019-12-24|archive-date=2019-12-24|archive-url=https://web.archive.org/web/20191224123643/https://news.yahoo.com/nissan-apos-iconic-rb26-engine-130747708.html|url-status=dead}}</ref><ref>{{cite web|url=https://www.roadandtrack.com/car-culture/buying-maintenance/a26985019/nissan-syline-gt-r-rb26-engine-restarts-production/|title=The Nissan Skyline GT-R's RB26 Inline-Six Is Going Back Into Production|first=Brian|last=Silvestro|date=2019-03-29|publisher=Road & Track|access-date=2020-01-19|archive-date=2020-07-08|archive-url=https://web.archive.org/web/20200708061735/https://www.roadandtrack.com/car-culture/buying-maintenance/a26985019/nissan-syline-gt-r-rb26-engine-restarts-production/|url-status=live}}</ref><ref>{{cite web|url=https://www.hagerty.com/articles-videos/articles/2019/03/28/nissan-restarting-production-skyline-rb26-straight-six|title=Nissan is restarting production of the Skyline's RB26 straight-six|first=Eric|last=Weiner|date=2019-03-28|publisher=Hagerty|access-date=2020-01-19|archive-date=2020-12-14|archive-url=https://web.archive.org/web/20201214104716/https://www.hagerty.com/media/news/nissan-restarting-production-skyline-rb26-straight-six/|url-status=live}}</ref>