TVR Speed Six engine

TVR Speed Six engine

The TVR Speed Six was the name of a normally aspirated straight-6 engine manufactured by TVR, and used in several of their cars including the TVR Tuscan, TVR Cerbera, TVR Tamora, TVR T350 and TVR Sagaris.

The engine's prototypes (sometimes referred to as AJP-6) were designed and delivered by independent engineer Al Melling (the "A" in AJP) as both 3.6 and 4.0 litre units. The key design features were an all alloy block and head, dry sump lubrication system and throttle body electronic fuel injection system. This gave lightweight, extremely fast throttle response and high peak horsepower. The engines that actually went into production however were TVR modified versions of the original AJP-6 prototypes.

The initial 4.0 litre version of the engine as used in the Cerbera produced Auto bhp|350|0 but later incarnations of the engine have reached claimed outputs of up to Auto bhp|405|0 in cars like the Tuscan S and Sagaris.

The engine was produced in two different displacements: 3.6, and 4.0. The two versions use the same piston size but different stroke lengths depending on the power needed for the application.

The heads on all versions of the engines are twin-cam 24-valve, with finger follower valve actuation. There is one throttle and injector per cylinder (throttle body EFI), as well as equal length tubular exhaust manifolds. In addition, the engine is canted 30 degrees to the left and the dry sump lubrication system enables the engine to be mounted lower in the vehicle chassis.

There have been complaints of durability issues from some users. In some cases these were attributed to faulty components (particularly the finger followers) provided by TVR's parts suppliers and other cases were attributed to user abuse. The engine is claimed to be extremely sensitive to being revved hard without being allowed to warm up fully first. Also, its dry sump oil system can make it difficult for new owners to accurately judge the level of oil in the reservoir and any engine run without adequate lubrication can be subject to mechanical damage.

TVR developed it into the limited-production V12 Speed Twelve racing engine.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • TVR Speed Eight engine — The TVR Speed Eight was the name of a normally aspirated V8 car engine designed and manufactured by TVR. The engine was intended to power the TVR Griffith and the TVR Chimaera but delays in its production meant that it powered only the TVR… …   Wikipedia

  • TVR Speed Twelve engine — The TVR Speed Twelve engine is the name of a V12 engine manufactured by TVR for use in the TVR Speed 12 race car, and later the TVR Cerbera Speed Twelve road car in which on the Cerbera Speed 12 went into production.The engine was developed by… …   Wikipedia

  • TVR — Infobox Company company name = TVR Motors Company Ltd. company logo = company type = Private foundation = 1946 location city = flagicon|UK Blackpool location country = England, UK key people =Nikolay Smolensky (owner) Peter Wheeler (owner) Martin …   Wikipedia

  • TVR T350 — Infobox Automobile boxcolor=darkgreen name=TVR T350 manufacturer=TVR production=2002 ndash;2006 body style= 2 door coupe engine= 3.6 L (3605 cc) Straight 6 transmission=5 speed manual related= TVR Tamora, SagarisThe TVR T350 is a sports car… …   Wikipedia

  • TVR Sagaris — Infobox Automobile boxcolor=darkgreen name=TVR Sagaris manufacturer=TVR production=2004 ndash;2006 body style= 2 door coupe engine= 4.0 L (3996 cc) Straight 6 transmission=5 speed manual wheelbase= convert|92.9|in|mm|0|abbr=on length= convert|159 …   Wikipedia

  • TVR — Motors Company, Ltd. Тип частная компан …   Википедия

  • TVR Cerbera — The TVR Cerbera is a sports car manufactured by TVR between 1996 and 2003. The name is derived from Cerberus the three headed beast of Greek legend that guarded the entrance of Hades.The TVR Cerbera was the third car manufactured by TVR under the …   Wikipedia

  • TVR Typhon — Infobox Automobile name = TVR Typhon manufacturer = TVR production = 2004 class = Sports Car body style = 2 Door Coupe layout = FR engine = TVR Speed Six related = TVR T440RThe TVR Typhon was a sports car designed and built by the British car… …   Wikipedia

  • TVR Tuscan — Infobox Automobile name = TVR Tuscan aka = TVR Tuscan Speed 6 manufacturer = TVR parent company = production = 1999 ? assembly = Blackpool predecessor = successor = class =Sports car body style = Coupé layout = FR layout platform =Fiberglass body …   Wikipedia

  • TVR Tuscan Challenge — Infobox motorsport championship pixels = caption = category = One make racing inaugural = 1989 drivers = teams = constructors = TVR engines = country/region = United Kingdom folded = champion driver = champion team = manufacturer = website =… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”