This is the car, newly developed, at the Autosport Show, NEC, Birmingham, England in January 2001

New Hewland Parts

All Hewland parts - spares and complete gearboxes. Available from stock, or within a few days subject to availability from Hewland Engineering.

Used Parts

GEARBOXES: Ex-Williams Renault 1997 touring car gearboxes. 6-speed sequential transverse. Differential mounted in front of engine. Based on the Hewland Touring Evolution design, with additional modifications to Williams' exacting standards. Complete or parts. Prices on application. Also currently available (6th December 2000) are: FT: 2 x ratios (1st gear 15/38) Hewland VG: 4 x VG 30/34 5 x VG 24/25 4 x VG 18/29 1 x VG 23/25 Lightweight FT: 1 x 25/29 4 x 25/33 4 x 18/28 3 x 15/33 4 x 16/32 DGB: 4 x 23/25 4 x 21/34 2 x 22/34 2 x 24/32 3 x 18/38 1 x 13/36 1 x 16/38 If you haven't seen what you want in the list above, email or fax us - we might now have what you need in stock.

In the Pipeline

For 2001, we plan to market our own Formula 3-type gearbox, with a range of bell housings and spacers, plus suspension mounting plates for ease of building. More details as project develops - watch this space.

J P Race own parts

J-spec differential, lighter and smaller than the standard item for Hewland LD gearboxes. Standard differential - 4 kilograms. J-Spec differential - 3 kilograms. Already developed and successfully tested, with wins in the British and European Formula Ford championships. Replacing your existing differential requires only minor resetting adjustments, as for any differential change. We can do this for you, and take your original differential in part-exchange. See the next section for the history of the Hewland LD200 gearbox, from which the J-spec differential grew.

Development of the Hewland LD200

The Hewland LD200 is a great little light-duty gearbox that will carry on into the third millennium. However, its largest dynamic component - the differential - actually started life in the 1950s. The differential is the most important area for development and our idea was to bring the rotating mass of the internal gearing closer to the centre of the crown wheel axis. A more advanced set of side and planet gears, also made by Hewland to their usual high standards, has achieved this aim. These internal gears are actually half a kilogram lighter than standard, making the differential lighter in operation. Contrary to some opinions, a tight or stiff-operating differential will slow down a light car, when making high-speed changes of direction. Naturally, the lower the engine power output, the more advantage there will be in using a lightweight differential.