Technical Specification

Body Type Two-seater sports convertible. Unstressed GRP outer skin.
Chassis Type Composite central monocoque with tubular steel front and rear sub frames.
Suspension Front: Independent by wishbones and rocker arms with inboard telescopic dampers and
concentric coil springs.
Rear: Live axle on coil springs with telescopic dampers, parallel lower trailing arms and
angled upper radius rods.
Steering Rack and pinion.
Engine Type Four cylinder in-line, overhead camshaft, inclined at 45 degrees. Water cooled.
Transmission Four speed all-synchro, with optional overdrive on 3rd and 4th. Five speed (TR-7) all-synchro
(with minor modification) or Borg Warner Type 65 automatic.
Final Drive Ratio 3.45-1, Sprint (LSD optional), 3.63-1,1850, 3.27-1, Auto
Brakes
Servo-assisted
SPRINT
1850
  
 
8" discs
8" discs
 Front
 
9" drums
8" drums
 Rear
Recommended wheels & tyres 6J x l3, 185/70 HR 13 or 6J x l4, 185/60 HR 14.
Engine Specifications
  SPRINT 1850
Capacity: 1998 cc 1854 cc
Bore/stroke: 90.3mm x 78mm 87mm x 78mm
Block: Iron Iron
Head: Alloy Alloy
Valves: sohc, 4/cyl sohc, 2/cyl
Compression ratio: 9.5:1 9.0:1
Bearings: 5 main 5 main
Carburation: 2 x SUHS6 2 x Stromberg 150CDS(E)V
Fuel pump: AC mechanical AC mechanical
Max. Power*: 127bhp @ 5,700 rpm 91bhp @ 5,200 rpm
Max.Torque: 1221bft @ 4,500 rpm 1051bft @ 3,500 rpm

  *NB: Power output figures are for a standard engine as fitted to the Dolomite. When fitted to the Latham F2 the fan is removed and the exhaust system replaced by a less restrictive type. These modifications alone should give an increase of some 10-15bhp.
Estimated Performance
  SPRINT 1850
0-60mph: 5.8 seconds 7.5 seconds
Max. speed:* 140 mph 120 mph
Standings-mile: 14.0 seconds 15.5 seconds
Fuel Consumption 35-40 mpg 38-45 mpg
 

NB: Performance figures are estimated for cars fitted with standard engine and manual overdrive gearbox.
*In practice, these figures proved to be very conservative, and a Sprint engined F2 was easily capable of higher speeds than this, with an 1850 powered car matching the figures quoted here
for the Sprint

Dimensions
  Imperial Metric
Wheelbase: 93" 2362 mm
Track-.front: 53¼" 1352 mm
Track-.rear: 50" 1270 mm
Length: 163" 4140 mm
Height, top of hood: 44" 1120 mm
Height, top of screen: 40½" 1028 mm
Ground Clearance: 4½" 114 mm
Kerb Weight (estimated): 13½ cwt 687 kg
Fuel tank capacity: 12.5 galls 57 litres