JE Engineering

JE Engineering has been involved in automotive engineering, petrol, diesel and hybrid powerplant, drivetrain and chassis development, prototyping and consultancy to the automotive, motorsport and related industries for decades.

Much of our quietly pioneering work has provided owners of mainstream production luxury and performance cars with an enhanced driving experience, and contributed to the evolution of several car classes including one of the world’s biggest-selling vehicles in its sector.

Our work with the automotive and motorsport industries is confidential and collaborative, and extends from consultation on new or evolving design, technology or engineering, through to prototyping of concepts varying widely in scale and scope.

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Engines

JE Engineering specialises in, but is not restricted to, installation, tuning and modification of current Jaguar Land Rover petrol and diesel engines, Rover V8s for road or race, and the installation of Roush V8s in suitable JLR models.

Rover V8

JE has been maintaining, building and tuning Rover V8 engines for road and motorsport since the 1970s. Our pedigree is such that when we created the first performance Range Rovers, with significantly upgraded engines and chassis, the intellectual property rights were acquired from us by Land Rover. So good were those enhancements that we effectively created a new classification of vehicle which eventually spawned what today is the Range Rover Sport.

Today we base our core Rover V8 enhancement on 4.5 (originally 3.5, 3.9 or 4.2), 4.8 or 5.0 litre (originally 4.0 or 4.6) engines, and, deopending upon whether carbs or fuel injection is specified, take them to a reliable 250-350bhp, and 400-450Nm.

For motorsport, we can go to 420bhp.

Our engines can be found in Rover, Land Rover, Range Rover, Marcos, Morgan, TVR and Westfield road and competition cars.

Land Rover

JE provides a variety of enhanced power options across the Land Rover range: Defender, Discovery, Freelander and Evoque. Our Tune and Tune+ ECU/mapping options for diesel Defenders, petrol and diesel Discoveries, Freelanders and Evoques will considerably improve driveability, towing capability and outright performance, while 3.2 diesel, petrol Rover, JLR and Roush V8 installations for the Defender take matters into an entirely different dimension with outputs of up to 650bhp and 800Nm.

Range Rover

We were instrumental in creating the basis for what ultimately evolved into the Range Rover Sport: we designed and built the first performance Range Rovers, the engineering rights for which were bought by JLR. We are vastly knowledgeable in the art, science and engineering behind giving Range Rovers their trademark effortless express train overtake capability. We find extra – reliable – performance for Range Rovers of all ages, whether original Rover V8-based, or current-day diesel or petrol V8s.

Jaguar

JE’s supercharged 4.7 petrol V8 – 475bhp and 650Nm – is often believed to be a tweaked version of something Jaguar or Aston Martin build. It’s neither. Aston’s 4.7 is not supercharged, and Jaguar’s supercharged V8 is a 4.2. The supercharged JE 4.7 is our own design and engineering, with unique internals, its purpose being to create a character and performance profile to suit the Defender, but which provides an indication of what we can achieve with JLR V8s regardless of the installation.

Morgan

JE has been maintaining, building and tuning Rover V8 engines for road and motorsport since the 1970s. This experience is highly-relavent to Morgan cars.

Today we base our core Rover V8 enhancement on 4.5 (originally 3.5, 3.9 or 4.2), 4.8 or 5.0 litre (originally 4.0 or 4.6) engines, and, deopending upon whether carbs or fuel injection is specified, take them to a reliable 250-350bhp, and 400-450Nm.

For motorsport, we can go to 420bhp.

TVR

If you think of a TVR, then you generally hear a Rover V8. JE has been maintaining, building and tuning Rover V8 engines for road and motorsport since the 1970s.

Today we base our core Rover V8 enhancement on 4.5 (originally 3.5, 3.9 or 4.2), 4.8 or 5.0 litre (originally 4.0 or 4.6) engines, and, deopending upon whether carbs or fuel injection is specified, take them to a reliable 250-350bhp, and 400-450Nm.

For motorsport, we can go to 420bhp.

Marcos

Sometimes a forgotten brand, but never a forgotten noise when a Rover V8 is behind it.

JE has been maintaining, building and tuning Rover V8 engines for road and motorsport since the 1970s.

Today we base our core Rover V8 enhancement on 4.5 (originally 3.5, 3.9 or 4.2), 4.8 or 5.0 litre (originally 4.0 or 4.6) engines, and, deopending upon whether carbs or fuel injection is specified, take them to a reliable 250-350bhp, and 400-450Nm.

For motorsport, we can go to 420bhp.

Westfield

There’s only one big powerplant that suits Westfield, and that’s the innately lightweight Rover V8. JE has been maintaining, building and tuning Rover V8 engines for road and motorsport since the 1970s.

Today we base our core Rover V8 enhancement on 4.5 (originally 3.5, 3.9 or 4.2), 4.8 or 5.0 litre (originally 4.0 or 4.6) engines, and, deopending upon whether carbs or fuel injection is specified, take them to a reliable 250-350bhp, and 400-450Nm.

For motorsport, we can go to 420bhp.

Ford

Our performance upgrades for Ford are admittedly limited in scope, but comprehensive in effect. Our Roush installation – 650bhp, 800Nm – is JE muscle-flexing in more ways than one. The inspiring brief was to build ‘the ultimate useable sleeper’ Defender. To achieve that, we needed to know the customer, because it was probably actually the ultimate useable personalisation. The Roush motor is based on a 5.0 litre Ford V8, will transplant into a limited range of Ford models, as well as Defender. Each installation is carefully developed to match the personality of the owner. Our 610bhp version is for right-hand-drive only; we can install a non-supercharged 425bhp in both rhd and lhd cars.

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Development

As a go-to engineering and development specialist with decades of experience in road and competition drivetrains, JE has amassed great human experience and made significant investment in advanced design and production equipment.

CNC Machining

Our modern four-axis CNC machine is fully integrated with our CAD/CAM systems. We can design and produce steel and aluminium components from the basic to the extremely complex. There is an elegant simplicity to producing, for instance, an engine mount which looks and acts OE but is part of a project to mate engines and chassis that were never designed for one-another. Equally, components of complex manufacturer-commissioned projects can be moved rapidly to prototype stage. This is a unique capability in our market.

Balancing

While dynamic crankshaft balancing might be a send-out-to-specialists project for many, at JE it is a commonplace but no less crucial element in the in-house design and engineering of our standard, tuned or prototype engines. A properly balanced crankshaft means a smoother engine, capable of higher rpm, therefore more power and efficiency. Both V6 and V8 engines can gain considerably from the effect of the correct machinery and approach to balancing.

Dyno Testing

There is a perception that dyno testing is all about ensuring a modification to an engine will yield the maximum possible power and torque. That’s the easy bit. However, knowledge, experience and expertise will frequently raise more questions than answers, and take the tests into environments that may never happen but for which the confidentially-prototyped or customer-brief-modified engine must be prepared: for instance cold starts or high ambient temperature starts. We also use dyno testing to check for oil leaks, test and develop new settings or components, measure exhaust gasses, run engines in, and even for ECU calibration work.

Transmissions

There is a perception that upgrading a transmission involves little more than bolting on a different manual or automatic gearbox. But the new seamless performance and seemingly transformational effect of upgrading a transmission, to, say, a 6-speed tiptronic auto, is deeply complex: mounting points will be different; 4×4 componentry may need to be modified; engine and gearbox ECUs must speak to one another. Meanwhile, the type of personalisation JE builds in to a vehicle means that customers will often specify certain gearbox characteristics – hanging on to low gears for acceleration, as an example – and return later to have those characteristics fine-tuned.

Alternative Power

We convert diesel cars and petrol and vice-versa. That’s a relatively straightforward alternative form of power, but still involves a vast array of ancillary, electronic and fuel system changes. However, we are also developing electric hybrid drive systems, often for vehicles which were originally designed in an era when the chassis space for hybrid components didn’t exist, and electronics involved a handful of wires and some toggle switches. Our first hybrid is nearing readiness.

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Consultancy & Prototyping

JE’s consultancy work is commissioned by manufacturers, is confidential, and involves advanced thinking on future powertrain design varying in development stage from drawing board to on-road trials. Contact JE for password access.

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Confidentiality

The tiniest – or greatest – of engineering advances in road car design can be based on a life’s thinking, designing and progression to deployment. The outcome can mean immense advantage. Regardless, getting there can be immensely costly. JE Engineering has both helped develop in-mind and on-paper ideas to road car trial stage and then reality, while in parallel maintained the sort of confidentiality and secrecy benchmarked by our sister company’s clients in the likes of F1, WRC and BTCC.

CAD/CAM

The evolving computerised design, engineering and manufacturing capability at JE dates back decades. It’s a well worn phrase, but we take an idea and turn it into reality, then work with the manufacturer to establish feasibility: whether alternative spark plug positions, new ideas for cylinder heads, or generating electricity from turbos, we drive performance and thermal efficiency improvements. Our software, design and manufacturing capability match or exceed that of vehicle and component manufacturer clients and partners.

Project

JE has genuinely advanced project development capabilities. While the improvements in performance, efficiency and emissions management available from direct injection diesels are well charted, there is still immense potential. We know, because we’re working on it. Meanwhile, charge refrigeration will be the next step change for petrol engines. That may be something on the radar of manufacturers, but we are working on a unique evolution which will manifest in the form of a running and installed powerplant. Next-generation hybrid is also on our drawing boards. Combine all our current projects, and the performance and efficiency gains of the past ten years will be dwarfed by comparison.

Prototype

Will it work in the real world? At any one time JE is running, either on testbeds or in vehicles, several engines or vehicles with varying extents of prototype components or integrated installations. Some are in plain sight in daily road use, some exist only in virtual form for the purposes of both secrecy and stress testing. We’re not afraid to test components to destruction so we know how to improve them.

Feasibility

A revolutionary idea is not always dependent upon the self-contained advanced state of the concept itself: there are many other considerations and knock-on effects. Only expertise and experience can identify these issues. Simply: will it work as intended in the real world? We’re consulted on a weekly basis on whether an idea might work. An absolute yes or no is relatively straightforward. It’s the great ideas that rely upon the influence of uncertainties or unknowns around them where the challenge lies. It’s an engineering equivalent of the butterfly effect.

Contact us

JE enhances, tunes and upgrades a variety of Jaguar Land Rover, Ford, Marcos, Morgan, Range Rover Classic, TVR and Westfield vehicles, for road and motorsport, and provides consultancy and feasibility study to the automotive industry.

Contact us, specifying your vehicle, and we'll tell you how we can change what you might expect from your car.

+44 (0)24 76 305018

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