| Competition Page | 1962 PCS Book |
Manufacturer: MG Class: H Model: TC, TD, Mk II ------------------------------------------------------------------------------ DESCRIPTION: 2-Seater Roadster Dry Weight: ------------------------------------------------------------------------------ ENGINE: Type .............. 4 cyl ohv in line Bore & stroke ..... 66.5mm x 90mm Capacity .......... 1250 cc Comp ratio ........ 7.25:1 Head material ..... Cast Iron Port size ......... Intake and Exhaust: 30 x 30mm Piston material ... Aluminum Piston weight ..... 9-1/2 oz Timing data: Intake .... Open 11° BTDC, Close 57° ABDC Exhaust ... Open 52° BBDC, Close 24° ATDC Valve lift: ....... 8mm Valve head dia: Intake .... 33mm Exhaust ... 31mm Valve spring ...... 93 lb shut, 123 lb open Carburation ....... Two SU 1-1/4" ----------------------------------------------------------------------------- TRANSMISSION AND DRIVE TRAIN: Ratios: TC TD, Mk II 1 3.38 3.5 2 1.95 2.07 3 1.35 1.385 4 1.0 1.0 5 Final drive ratios: 4.875(39/8), 5.125(41/8) TC Only: 5.428(38/7); TD, MkII Only: 4.55(41/9) ------------------------------------------------------------------------------ CHASSIS Wheelbase ................... 94" Track dimension, front ...... 45" (TC); 47-3/8" (TD) Track dimension, rear ....... 45" (TC); 50" (TD) Shock absorber .............. Lever Steering ratio .............. 11:1 (TC); 13.75:1 (TD) Brakes ...................... Tire size ................... 4.50 x 15, 5.50 x 15 ------------------------------------------------------------------------------ APPROVED OPTIONAL EQUIPMENT 9.3:1 Compression ratio 36mm Inlet valves 34mm Exhaust valves 150 lbs (open) valves AEG #122 camshaft 1-1/2" SU carburators Duel fuel pumps Dual fuel lines 6 qt sump 15" wire wheels (5.50x15) (TC)(TD,MkII equipped with disc wheels only) Andrex shock absorbers (MkII)