Mechanical Details

The standard engine used is the famous Jaguar XK unit in 4.2 litre capacity, although at the owner's option either a 3.4 or 3.8 litre unit can be installed. The 4.2 engine is chosen because it benefits from decades of development and is considered to be more tractable and reliable than the earlier units, particularly in the cooling department.

All engines are fully reconditioned, blueprinted and balanced. The cams have a mild "street" profile which improves performance while retaining tractability. Triple Weber carburettors are fitted with full flow air cleaners on a Tempero cast alloy inlet manifold.

Extractor exhaust headers are fitted, together with

large diameter tail pipes (heat shields are fitted to the headers to avoid overheating of the bonnet and subsequent blistering of the paint).

Standard power for the 4.2 litre engine is approximately 300bhp which is sufficient to propel the 1000kg car to a stunning level of performance. For those looking for ultimate performance virtually any level of engine development is available to order (also see notes under "racing options" at the end of this section).

To greatly improve drivability and performance on road or track the standard gearbox is a Borg Warner all-syncho 5-speed unit. However, for those who enjoy the vintage feel of an original Moss gearbox, these are available as an option. The flywheel is a Tempero manufactured aluminium unit whose low inertia greatly enhances acceleration and overall responsiveness of the engine.

Jaguar's original D-Type had torsion bar front suspension which was advanced for the 1950's, but technology has come a long way since then. The Tempero D-Type's standard suspension is a development over this original design with double wishbones, coil springs over adjustable shock absorbers and an anti roll bar.
Optionally, for those who wish to retain originality at the expense of comfort and handling, Tempero's offers an original style torsion bar suspension system that is available on specific quotation.

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