1985 Lancia Delta S4 Group B


1985 Lancia Delta S4 Group B

1985 Lancia Delta S4 Group B

In Detail

submitted by Richard Owen
engine Inline-4
position Mid, Longitudinal
aspiration Duel Stepped Volumex Supercharger & KKK Turbocharger
valvetrain DOHC, 4 Valves per Cylinder
fuel feed I.A.W. Weber Marelli Electronic Fuel Injection
displacement 1759 cc / 107.3 in³
bore 88.5 mm / 3.48 in
stroke 71.5 mm / 2.81 in
compression 7.0:1
power 410.1 kw / 550 bhp @ 8000 rpm
specific output 312.68 bhp per litre
bhp/weight 458.33 bhp per tonne
torque 291.5 nm / 215 ft lbs @ 4500 rpm
body / frame Fiber Glass Body over Chrome-Molybdenum Steel Spaceframe
driven wheels 4WD w/Limited-Slip Viscous Center Coupling, Front & rear Self-Locking ZF Differentials
front tires 205/55 VR 16
rear tires 205/55 VR 16
front brakes Vented Brembo Discs
f brake size mm / in
rear brakes Vented Brembo Discs
r brake size mm / in
steering Rack & Pinion w/Power Assist
f suspension Unequal Length Wishbones
curb weight 1200 kg / 2646 lbs
wheelbase 2440 mm / 96.1 in
front track 1510 mm / 59.4 in
rear track 1535 mm / 60.4 in
length 3990 mm / 157.1 in
width 1880 mm / 74.0 in
height 1360 mm / 53.5 in
transmission 5-Speed Manual
gear ratios :1
key drivers Markku Alen, Henri Toivonen, Fabrizio Tabaton, Massimo Biasion
race victories RAC 1985, Monte Carlo 1986, Argentina 1986, Italy 1986, USA 1986