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124 horsepower
The amazing power increase which the McCulloch Supercharger adds to the already lively Ford V-8 engine is graphically illustrated by comparison performance curves shown above -curves based on accurate dynamometer tests made under the most exacting laboratory conditions. Power means Getaway ! Power means Pickup ! Power means speed ! Once you drive a Supercharged Ford you will never be satisfied with an ordinary car !
Acceleration becomes almost unbelievable as you release the additional horsepower now at your command. The remarkable increase in horsepower gives you the pickup and potential speed that enables you to cope easily and safely with the most strenuous driving conditions. Hills mean nothing to the Supercharged Ford V-8, and the increased torque of the engine reduces gear shifting to a minimum. The necessity for quick maneuverability in dangerous situations finds a ready reserve of fast responding power. In all driving conditions you will have a confidence and a delight in the performance of your car which words can not express.
WHAT IS A SUPERCHARGER ?
A Supercharger is a pump used to increase the amount of fuel and air mixture which can enter each cylinder of a gasoline engine during the intake stroke of the piston. Atmospheric pressure, even at sea level, is not great enough to fill the cylinders with an efficient charge even at low speeds. At high speeds the condition becomes much worse because of the greater number of intake strokes per minute. A blower, or Supercharger, raises the pressure on the incoming mixture and increases speed with which it can pass through the manifold and valves into the cylinders. This means greater volumetric efficiency- a Supercharge and Superpower !
7.3% TO 19.7% BETTER GAS MILEAGE
Many people have the mistaken idea that a supercharged engine uses more fuel than an ordinary engine. The truth is quite the opposite and is easily understood when the facts are pointed out. The use of a properly designed Supercharger is the best known method of introducing the fuel mixture into the cylinders. Although it takes about the same amount of power to force it in with a blower as to suck it in by piston action, the supercharger mixes and distributes the gasoline and air so much more efficiently that considerably greater economy results. The table gives the results of accurate tests made on a standard Ford V-8, both with and without the McCulloch Supercharger.
HOW DOES THE McCULLOCH SUPERCHARGER OPERATE ?
There are two types of Superchargers,-Positive, and Centrifugal. The latter is the simpler and more economical of the two. The McCulloch Supercharger is of the centrifugal type, and is placed between the carburetor and the special intake manifold. The Supercharger itself consists of a rotor, which turns at six times the engine speed in the rotor housing, a set of special silent worm gears mounted on the drive shaft and rotor shaft, a gear case and drive shaft housing, a triple pulley for fan belt drive, and a special intake manifold with automatic heat control. By revolving at high speed the rotor causes the mixture to build up pressure, resulting from centrifugal force, in the special thermostatically controlled manifold. Special three belt pulleys are furnished for the Ford crankshaft and water pumps, as well as a set of matched belts and a special air cleaner. The Ford generator is mounted on the Supercharger manifold and driven by a separate belt from the Supercharger drive shaft.

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