| Competition Page | 1962 PCS Book |
Manufacturer: MG Class: H Model: TF 1250 ------------------------------------------------------------------------------ DESCRIPTION: 2-Seater Roadster Dry Weight: ------------------------------------------------------------------------------ ENGINE: Type .............. 4 cyl ohv in line Bore & stroke ..... 66.5mm x 90mm Capacity .......... 1250 cc Comp ratio ........ 8.1:1 Head material ..... Cast Iron Port size ......... Intake and Exhaust: 32 x 320mm Piston material ... Aluminum Piston weight ..... 9-1/2 oz Timing data: Intake .... Open 5° BTDC, Close 45° ABDC Exhaust ... Open 45° BBDC, Close 5° ATDC Valve lift: ....... 8.3mm Valve head dia: Intake .... 36mm Exhaust ... 34mm Valve spring ...... 114 lb shut, 150 lb open Carburation ....... Two SU 1-1/2" ----------------------------------------------------------------------------- TRANSMISSION AND DRIVE TRAIN: Ratios: 1 3.5 2 2.07 3 1.385 4 1.0 5 Final drive ratios: 4.55(41/9), 4.875(39/8), 5.125(41/8) ------------------------------------------------------------------------------ CHASSIS Wheelbase ................... 94" Track dimension, front ...... 47-3/8" Track dimension, rear ....... 50" Shock absorber .............. Girling or Armstrong piston Steering ratio .............. 13.15:1 Brakes ...................... Tire size ................... 5.50 x 15 ------------------------------------------------------------------------------ APPROVED OPTIONAL EQUIPMENT 9.3:1 Compression ratio AEG #122 camshaft 1-1/2" SU carburators Duel fuel pumps Dual fuel lines 6 qt sump Wire wheels