Bob Edgeworth's 1972 MGB with Rover 3.5L V8

Bob Edgeworth's 1972 MGB with Rover 3.5L V8

Bob Edgeworth's 1972 MGB with Rover 3.5L V8

as published in British V8 Newsletter, Volume XI Issue 3, September 2003

Owner: Bob Edgeworth
City: Richmond, VA
E-mail: MGBob25 @ aol.com
Phone: 804-270-7853
Model: 1972 MGB Roadster
Engine: Rover 3500 SDI
Conversion performed by: Owner

Engine: 1981 Rover SD1 3.5L V8. Crower 50230 cam, 0.445" lift on intake, 0.048" exhaust. Duration at 0.050" lift = 202 degrees intake, 210 degrees exhaust. Lobe separation angle of 108 degrees. Engine has been bored 0.030", 10.5:1 compression ratio pistons, completely balanced and blueprinted.
Intake: Lucas air flow electronic fuel injection system. Cable throttle linkage. K&N air filter.
Engine Electrical: Early model YM distributor reworked with transistorized ignition.
Drivetrain: Rover 5-sp from a Rover 3500 SD1. Gear ratios: 1 = 3.32, 2 = 2.09, 3 = 1.4, 4 = 1, 5 = 0.83. Rover clutch and throw-out bearing is used, along with an MG master cylinder and a Triumph slave cylinder. Flywheel and bellhousing are both Rover.
Cooling: An aluminum V-belt Buick water pump, with an MGB V8 radiator and twin electric fans provide cooling. A twin fan setup from a '77 MGB is used in a pusher configuration, controlled by an adjustable thermostat set at 190F. The engine thermostat is a 170F unit. The engine never runs hot.
Exhaust: RV8 headers feed a pair of glass-paks. 2.25" pipes exit in front of the rear wheels.
Rear Axle: Ford 8" from a '73 Maverick, 3:1 ratio. MGB outer housing tubes were used with Ford truck axles re-splined to fit the MGB hubs.
Front suspension: Lower control bushings are MGB V8 items, along with a 7/8" sway bar.
Rear suspension: Composite springs and traction bars.
Brakes: Rear brakes are stock. Cross drilled rotors, MGB V8 brake pads, and stainless steel brake hoses on the front. Silicon fluid is used.
Wheels/Tires: Michelin XSE 195/60/15 tires are mounted on 6.5X15 Panasport wheels.
Interior: Stock.
Body: Stock.
Electical: A 100 amp Motorola alternator, and a Weber gear reduction starter.
Cost: $6500. (All work except the machine work on the engine was done by the owner.)
Completed: September 15, 2000. Driven over 6,000 trouble free miles since.
Performance: Not yet tested. Car has lots of power and gets 32MPG!
Bob's Advice: Do a lot of research, talk to someone who has done a conversion.

Federal Rover EFI



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