Fuel Injection 6 Cylinder & V12
Modern drivability, engineered for the world’s most iconic classic
E-Type UK has spent over a decade developing and refining fuel injection systems for both V12 and 6-cylinder E-Types.
As one of the first specialist workshops to commercialise EFI for these cars, we design, build and install every system in-house using bespoke wiring looms, modern ECU control and carefully engineered throttle body setups.
The result is a significant improvement in starting, running, throttle response and overall drivability — while retaining the character and presence of the original engine.
V12 FUEL INJECTION
Unlock the performance the V12 was designed to deliver. The 5.3-litre Jaguar V12 was originally developed to accept fuel injection, but early systems never reached production reliability.
Our in-house 'Down Draft' EFI (V12 ONLY) conversion brings the engine up to the refined, predictable and powerful standard. The ultimate V12 upgrade, offering owners the highest level of performance, responsiveness and presentation.
System Highlights:
- Bespoke down-draft throttle bodies
- Bespoke E-Type UK wiring loom (designed and built in-house)
- ECU calibration developed specifically for this system
- Custom fuel rails and injector configuration
- Modern coil packs for clean, consistent spark control
- Precision mapping for smooth, predictable fuel delivery
- Clean, symmetrical engine bay presentation
On-Road Benefits:
- Instant hot and cold starts
- Smooth, stable idle without the traditional V12 “wobble”
- Sharper, more linear throttle response
- Clean power delivery across the rev range
- No fuel evaporation issues
- Significantly reduced tuning compared with the factory carburettors
This is the most advanced EFI upgrade available for the V12 E-Type, offering exceptional drivability and visual impact.
What Our Clients Say...
Mr Evanson | 1973 Jaguar E-Type V12 Roadster
"Night and day difference — my V12 starts instantly and pulls cleanly through the revs".
6-CYLINDER FUEL INJECTION
Modern performance with classic XK character.
Our 6-cylinder EFI conversion replaces the original SU carburettors with modern throttle bodies and a dedicated ECU, significantly improving usability while preserving the look and feel of the XK engine.
Advantages:
- Reversible conversion — can be returned to factory carburation
- EFI system runs independently of the remaining mechanical components
- Clean, predictable running in all conditions
- Instant starting
- Smoother idle and improved fuel economy
- Sharper throttle response
- Reduced maintenance and tuning requirements
This upgrade makes the 6-cylinder E-Type more enjoyable as a weekend, touring or daily classic
WHY ELECTRONIC FUEL INJECTION?
Fuel injection offers a wide range of benefits for both XK and V12 E-Types:
- Predictable modern drivability
- No choke, no jetting and no carburettor adjustment
- Cleaner, more consistent combustion
- Improved reliability and touring confidence
- Reduced fuel smell and emissions
- Smoother power delivery
- Lower maintenance demand
EFI is one of the most transformative upgrades available — especially for owners who drive their E-Type regularly.
ENGINEERED, CALIBRATED & INSTALLED IN-HOUSE
All EFI systems are designed, wired, calibrated and installed by our specialist technical team.
To ensure maximum reliability, performance and presentation, our fuel injection systems are offered exclusively as fitted upgrades at our Kent headquarters.
MAKE AN ENQUIRY
To learn more about how fuel injection could improve the drivability of your E-Type, click the button below, we’d be delighted to help.
