Cosworth JD / VJ engine

The JD and VJ family is a series of 3.0-litre, naturally-aspirated V10 Formula One engines, designed by Cosworth in partnership with Ford; used between 1996 and 1999.^[2][3] The customer engines were used by Sauber, Stewart, Minardi, and Tyrrell.^[4]

Cosworth JD / VJ engine
Overview
Manufacturer	Ford-Cosworth
Production	1996–1999
Layout
Configuration	72° V10
Displacement	3.0 L (2,992 cc)
Cylinder bore	89 mm (3.5 in)
Piston stroke	48.1 mm (1.9 in)
Cylinder block material	Aluminum alloy
Cylinder head material	Aluminum alloy
Valvetrain	40-valve, DOHC, four-valves per cylinder[1]
Combustion
Turbocharger	No
Fuel system	Port Fuel Injection
Management	Cosworth ECU
Oil system	Dry sump
Output
Power output	670–735 hp (500–548 kW)
Torque output	approx. 230–270 lb⋅ft (312–366 N⋅m)
Dimensions
Dry weight	120 kg (265 lb)
Chronology
Predecessor	Ford-Cosworth EC / ED engine
Successor	Cosworth CR

Overview

The JD, VJ and VJM V10

In order to produce a higher power at higher rpm, a completely new 2,992 cc (182.6 cu in) (89mm x 48.1mm) JD 72° V10 was designed for 1996, which produced about 670 bhp at 15,800 rpm, and used by Sauber Formula One team. This engine was further developed into VJ and VJM with the same V-angle, bore and stroke, reaching 720 bhp for racing, 730 bhp for qualifying, at 16,500 rpm. All three of these engines were badged as Ford Zetec-R as well, and used by several teams. In its debut season, the best result was another third place, this time taken by Johnny Herbert at Monaco. This was surpassed one year later by Rubens Barichello's sensational second place, again at Monaco, which was the first points finish for the newly formed Stewart Grand Prix team.