Njaguar aj6 engine tuning books

V12 will need the toughest box in the book so look to the cj5. Full of explanations about how engine technology has evolved, especially in. All around the best designed plug for jaguar xjs 4. Jaguar or any other engine works, especially if you are interested in tuning for. This engine software is largely responsible for the behaviour of the jaguar x type 3. Jaguar tuning and high performance modifications club. We do not change or add any hardware in your vehicle. Got a classic jaguar thats in need of beefing up for modern road use.

Jaguar xj tuning the classic xj the xj is the very definition of what jaguar are to many, the xj had a long production run and is as quintessentially british as it is possible to be. For me the xj has to be in british racing green, any other colour just doesnt seem right to me. It was designed to replace the muchloved jaguar xk6 engine, and was introduced in 1984. We produce uprated induction systems for the v12, a range of exhaust systems and we reprogram electronic control units, which we also test and repair. Add to that the wear over 50 or so years and theres room for improvement. The genesis of the jaguar v8 ralph hosiers technoblog. Automobile and engine overhaul companies engine rebuilders gain access through an annual subscription. The aj16 evolution was replaced in 1996 with the jaguar developed ajv8 engine. The jaguar ajv6 engine is a specialized version of fords duratec v6 engine. They were the standard production carburettor favoured by jaguar from 1948 to the late 1970s apart from a brief and unhappy flirtation with stromberg. It was only the third allnew engine ever designed by the company. Even with a regular firing order such engines are notorious for timing gear. Dec 01, 2011 the injection concept was proved out before any prototypes were made, on a highly modified current production engine taken out to 4. We can guarantee absolutely to make any aj6 engined car considerably quicker.

The jaguar aj v6 engine is a specialized version of fords duratec 2530 v6. Paul skilleter books excellence in automotive publishing. We have wide experience with the jaguar v12 engines as well as the xk and aj616 sixes. Sep 23, 2016 we have now expanded our services to cater for classic jaguar cars. Shop for jaguar ignition, tune up and routine maintenance with confidence at autozone. How to power tune jaguar xk engines by hammill des abebooks. It remained the only engine type available on jaguar until 1999 with the launch of the s. The factory tolerances were terrible even in the best of cases. The aj6 was designed to replace the successful and longused jaguar xk6 engine, and was introduced in 1984.

Feb 28, 2012 some of these engine did over 400 bhp as standard and had to be torque limited from the factory initially to stop them destroying the gearbox. Xj6 xke water pump gasket jaguar part number c28656 fits. A new book that bridges the gap between the enthusiastic layman and the expert. Pages in category jaguar engines the following 6 pages are in this category, out of 6 total. As launched, the xj40 was offered with the new aj6 engine in the. How to power tune jaguar xk engines speedpro by hammill, des and a great selection of related books, art and collectibles available now at. Optimized for advanced ignition spark, airfuel ratio, transmission and various other parameters for the ultimate power gains and improved mpg. The book is dedicated to getting the most out of this famous engine. History, buying, rebuilding, tuning 1st edition by pollard, dave isbn. The jaguar xk is an inline 6cylinder dual overhead camshaft dohc engine designed by jaguar cars chief engineer william heynes and produced by the company between 1949 and 1992. Everyday low prices and free delivery on eligible orders. Remapping is a software change in which we modify the operating parameters in the vehicles ecu engine control unit program or map. The aj6 engine was the first jaguar production engine to use the four valves per cylinder layout that is now regarded as being the best way to achieve high efficiencies of both combustion and gas flow. Increases in power of up to 30% can be applied to v12 cars.

Dave pollard is a wellknown and highly regarded author of practical motoring books and a regular contributor to the motoring press. Aj6 engineering now offers their own design permanent washable foam air filters. I thought i would try this forum rather than the jaguar one for. The encyclopedic content of the enginedesk system is achieved by the conversion of the manufacturers catalogs we have been receiving since 1993. In many cases, the map stored on the ecus processor is accessed via onboard diagnostics port obd in the. Many people think that the exhaust system on a modern jaguar is a little too quiet for a car with high performance pretensions and it is quite possible to obtain a reasonable increase in performance allied to a pleasing exhaust note without becoming an antisocial monster.

The aj6 advanced jaguar 6cylinder, and the similar aj16, were inline6 piston engines used by jaguar cars in the 1980s and 1990s. We have a wide range of tuning articles covering all models of jaguar from the older pre 1990 cars to the modern xf, xj and xk ranges. Jaguar xj6 xj12 series 3 new and used engine parts 19791987. Aj6 engineering former jaguar development engineers has developed a tt. I initially set the missing tooth against the pointer big mistake and it wouldnt fire at all. Overpeened construction ensures a failsafe installation that wont let you down. This is the website of aj6 engineering, bringing an exceptionally high standard of technical expertise to the supply of performance parts, electronic control units, our unique tt tuned exhaust systems and associated items. Full details on choicemodification of camshafts, camshaft timing, valve springs, and cylinder head options and modifications. Jaguar tuning tips and modifications maximise your jaguars driving pleasure. How to tune your jaguar classic car how to guides and articles.

Full details on ignition systems and timing, exhaust manifolds and systems, and general tuneup information, including how to blueprint. For affiliated automotive purposes we provide full technical automotive data. Power steering, power seats, power windows, power door locks, cruise control, sunroof, air conditioning, stereo with cassette. It was designed in the early 1960s to give more torque and better low to mid range performance than the 3. Get the best deals on complete engines for jaguar xj6 when you shop the largest online selection at. Jaguar hurriedly concocted the four carburettor installation to see the engine through its first few years until an alternative efi system, bosch d jetronic, could be. It still ranks as one of the most famous british engines and has been used as the power plant in a number of specials and kit cars. The cylinder spacing and bolt patterns are the same according to roger bywater, not because the aj6 was derived from the v12, but rather because there was a plan to put the v12s h. Available with either the 5 speed manual or the 4 speed zf auto, again the auto can be modified for racing but the manual is a simpler option. Understanding electronic fuel injection aj6 engineering. One notable addition is the use of variable valve timing, a feature also shared with mazdas version of the engine.

It was designed in the early 1960s to give more torque and better low to mid range. Balancing smooth engine characteristics, high efficacy, improved fuel efficacy and extended change intervals during all required engine demands. As the biggest jaguar celebrates its halfcentury, classics worlds paul. Synopsis the 6cylinder xk engine was fitted to jaguars for around 30 years from the mid 1950s to the mid 80s including the mk 7, dtype, etype and xk150. Aj16 engine range service manual jaguar klub slovensko. There have been experiments to adapt the 4valve dohc head from the jaguar aj6 2. The next important area is to recondition the engine, its ancillaries. Classic jaguars top tuning tips classic car how to guides.

The contents of this selfstudy book also serve as your archival information for earlier jaguar engine management systems. How to tune your jaguar classic car how to guides and. Jaguar ecu remap chip tuning engine tuning dpf removal. The jaguar xk engine is, of course, synonymous with the venerable and highly efficient su carburettor. Therefore, jaguar provides the tapered tube to gradually and efficiently slow the air. The tuning company startech has released the first images of the latest customization program for the jaguar xj. The jaguar v12 was designed in the late 1960s by a team of. The aj6 was only the third engine ever designed by the company. A complete blueprint would be beneficial, not necessary, but helpful. Cylinder head 145 cylinder head breather 32 emission controls 77 engine block hardware and mounts 161 engine gaskets and seals 238 high performance engine parts 76 oil coolers 60 oil filters 79 timing chains and covers 9 valve train 237 popular brands. The aj6 advanced jaguar 6cylinder, and the similar aj16, was an inline6 piston engine used by jaguar in the 1980s and 1990s. Understanding electronic fuel injection, ignition and engine management.

Featuring a new aero kit that consists of a new front spoiler with larger air ducts, led daytime running lights, new fenders, rocker panel trim, rear apron, rear lip, and an integrated diffuser to complete the jaguar xj body kit. A brief guide to cost effective ways of increasing the performance of the jaguar v12 engine. Date recent pricehighest first pricelowest first on page. The design of the exhaust system is dominated by considerations such as refinement and, of course, emissions legislation. With all of our custom tuning software written and developed in house on our state of the art. It assumes that the engine has been removed from the vehicle, in accordance with the vehicle service manual, and. The first real prototype engines were created in 2004 and were immediately and relentlessly tested in engine dynamometers, where each engine can be tested in isolation under precisely controlled conditions. We analyse your vehicle and can adjust the engine management programme, also known as the ecu engine control unit. The jaguar aj8 is a compact dohc v8 piston engine used in many jaguar vehicles. In 1997 it replaced both designs previously available on jaguar cars. It was the fourth new engine type in the history of the company. Author roger bywater was a development engineer at jaguar and later founded aj6.

Race preparation and jaguar consultancy abbott saab. Classic jaguar sports upgrades winspeed motorsport. There are essentially 2 variants of the jaguar v12 engine with respect to the. The great british art of detuning jaguar engines by mr bywater, aj6 engineering. Now the engine starts immediately on the first compression and without jiggling the accelerator pedal. The straightsix aj6 engine is also a reliable unit, with marque specialist kwe cars reckoning on mileages of up to 150,000 before things start. Few people buy a jaguar to indulge in tyre smoking races from traffic lights. Jaguars aj v6 engine has an aluminium engine block and aluminium dohc cylinder heads.

Ed abbott was a senior development test engineer at jaguar cars ltd for 12 years, and was directly involved in developing the xjs, series 2 and 3 xj6 12, aj6 engine, and the xj40 at jaguar engineering with norman dewis. We have years of experience tuning jaguar engines to optimise for performance and efficiency. The jaguar design team had a lot of four valve experience progressing from the victorious. Celtic tuning have performance and economy engine remaps for the majority of the modern jaguar range, including the s type x200, x type x400, xf x250, xf sportbrake x250, xf sportbrake x250, xj x350, xj x351, xk x150 and xk8 x100. Sep 15, 2016 how to power tune jaguar xk engines this book gives full details on camshafts, camshaft timing, valve springs and cylinder head options and modifications. If you can find one the latest aj3 5 litre is an absolute beast 500 bhp on standard engine management and i bet will do more with the cats removed, the development cars i drove would easily light the. The 6 cylinder engines in the xjs were either the aj6 in 3. Which leaves the question why is the pointer there in the first place as i cannot see anything to line it up to. Uprated engine mounting rubbers for 6 cylinder etypes, mk2s xks etc.