1973 Huffaker Jensen-Healey

For inclusion in the D-Production category of SCCA racing, Joe Huffaker converted five Jensen-Healeys for club racing. Over the course of the 1973 season, Lee Mueller became the D-Production champion and the Jensen-Healey won it’s first season.

Huffaker Engineering was based out of San Rafael, California and had close ties to the Qvale group which initially developed the Jensen-Healey road car. Much of the their development focused on upgrading the engine power as the rest of the car was engineered well from the onset.

To raise the stock 140 bhp to nearly 200 bhp, Huffaker fitted new engine internals such as forged pistons, De Long racing camshafts and stronger valve springs.

The stock suspension which was borrowed from the Vauxhall Viva was kept virtually stock expect for the fitting of Koni shock absorbers and adjustable anti-roll bars. The brake system included an adjustable front and rear bias proportioning valve and the stock power steering assist was removed.

In their September 1974 edition, Road & Track reported on the full test of the Huffaker Jensen-Healey. As driven by Lee Mueller they reached 0-60 in 7.2 seconds and a marked improvement in every area of performance around Riverside. The race car was 23 seconds faster than the road-going counterpart. R&T also reported that a complete racing car was available for $11,400 compared to the street car which listed at $6290.1

Sources & References

1. Wakefield, Ron. ‘Two Jensen-Healeys’ Road & Track. September 1974

In Detail

submitted byadmin
typeRacing Car
built atSan Rafael, California, USA
price $$ 11,400
engineLotus Inline-4
positionFront, Longitudinal
fuel feedTwin Stromberg Carburettors
displacement1973 cc / 120.4 in³
bore94.0 mm / 3.7 in
stroke68.6 mm / 2.7 in
power146.2 kw / 196 bhp @ 7000 rpm
specific output99.34 bhp per litre
bhp/weight215.86 bhp per tonne
torque210.2 nm / 155 ft lbs @ 5000 rpm
body / frameUnitary Steel Monocoque
driven wheelsRWD
wheel typeMagnesium Minilite
front tiresGoodyear Blue Streak
rear tiresGoodyear Blue Streak
front brakesDiscs
rear brakesDrums
r brake size44.4 x 228.6 mm / 1.75 x 9 in
front wheelsF 33 x 17.8 cm / 13 x 7 in
rear wheelsR 33 x 17.8 cm / 13 x 7 in
f suspensionA-Arms w/Coil Springs, Koni Shock Absorbers, Adj Anti-Roll Bar
r suspensionLive Axle w/Coil Springs, Koni Shock Absorbers, Adj Anti-Roll Bar
curb weight908 kg / 2000 lbs
weight distro50 % / 50 %
wheelbase2336.8 mm / 92 in
front track1404.6 mm / 55.3 in
rear track1384.3 mm / 54.5 in
length4114.7998 mm / 162 in
width1607.8 mm / 63.3 in
height1122.7 mm / 44.2 in
transmissionChrysler 4-Speed Manual
gear ratios3.12:1, 1.99:1, 1.3:1, 1:1
final drive3.73:1
0 – 60 mph~7.2 seconds
0 – 100 mph~17.3 seconds
0 – 1/4 mile~15 seconds
fuel capacity45.42 litres or 12 gal.