The TVR Speed Six (also known as the AJP-6) is the name of a normally aspirated straight-6 engine manufactured by TVR by its TVR Power subsidiary in Coventry, England and used in several of their cars including the TVR Tuscan, TVR Cerbera, TVR Tamora and TVR Sagaris. The straight-6 (also inline 6, I-6, or I6) is an internal combustion engine with six cylinders aligned in a single row. ... TVRs logo TVR 280i TVR S series 1986 TVR 350i 1986 TVR Chimaera TVR Cerbera TVR is a manufacturer of sports cars, located in Blackpool, North West England. ... The Precinct in Coventry city centre. ... Royal motto (French): Dieu et mon droit (Translated: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area – Total Ranked 1st UK 130,395 km² Population – Total (mid-2004) – Total (2001 Census) – Density Ranked 1st UK 50. ... A TVR Tuscan sports car The TVR Tuscan is a sports car manufactured by TVR. Specifications Engine Five different inline six engine options were offered to customers. ... The TVR Sagaris is a Sports car that was designed and is currently being built by the TVR in their factory in Great Britian. ...

The engine's prototype was designed largely by independent engineer Al Melling (the "A" in AJP) originally as a 4.0 litre unit. The key design features were light weight, extremely fast throttle response and high peak horsepower The horsepower (hp) is the name of several non-metric units of power. ...

The initial 4.0 litre version of the engine as used in the Cerbera produced 350 bhp but later incarnations of the mill have reached outputs of 400 bhp and higher in cars like the Tuscan S and Sagaris.

There are rumors of a supercharged version in development that is expected to produce in excess of 550bhp. For other meanings, see supercharger (disambiguation) A supercharger (sometimes called a blower), a positive displacement or centrifugal pump, is a gas compressor used to pump air into the cylinders of an internal combustion engine. ...

The engine is currently produced in three different displacements: 3.6, 4.0 and 4.2 liters. The three versions use the same piston size but different stroke lengths depending on the power needed for the application.

All versions of the engines produced to date use a dual overhead cam design for the cylinder heads and advanced throttle design for improved response. In addition, the engine uses a dry sump lubrication system to reduce engine size and increase power. A double overhead cam (also called a dual overhead cam, DOHC, or twincam) engine is a type of internal combustion engine where the camshafts that operate the intake and exhaust valves are mounted above the cylinders, and where there are separate camshafts for inlet and exhaust valves. ... A dry sump is a lubricating oil managment method for four-stroke and large two-stroke piston internal combustion engines that uses a secondary reservoir for oil, as compared to a conventional wet sump system. ...

There have been complaints of reliability and durability issues from some users. In some cases these have been attributed to faulty components provided by TVR's parts suppliers and still other cases have been attibuted to user abuse. Like any highly tuned engine, it is extremely sensitive to being pushed 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. A V12 is an internal combustion engine with 12 cylinders in V configuration. ... The Speed Twelve is the name of a V12 engine manufactured by TVR and used in several of their cars incuding the TVR Speed 12 and TVR Cerbera Speed 12. ...