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Bullseye Power “BatMoWheel” Turbo Compressor Wheel
Bullseye focuses on optimizing blade pitch, shape, rake, and number of blades on the compressor to extract more power for a given size than a traditional compressor wheel design. Improvements are seen across the entire RPM range when this wheel is used, not just in one area. These refinements of turbocharger technology represent a true increase in overall efficiency at any given rotation speed.
Alfa Romeo turbocharged v8 for Indycar. This would be nice to shoehorn into a 75 Milano or GTV6 :D
Details: 90-degree 8 cylinder V-shaped engine with aluminium crankcase and cylinder heads. Timing is based on one double overhead camshaft per bank and four valves per cylinder. Valve caps and other minor parts are made of magnesium. The 2648 cc displacement is achieved with a cylinder diameter of 86 mm and a stroke of 57 mm. Intake is at the center of the “V” and exhausts are lateral. The architecture of the engine has been designed to enhance the car’s aerodynamics, i.e. the engine must not interfere with the “tunnels” under the body, which exploit the Venturi downforce effect which is vital in Indy car racing. Neither should the engine’s height disturb the flow of the air toward the rear wing.
Turbocharging is provided by a Garrett Turbo coupled with a waste gate and CART specification pop-off valve. The Magneti Marelli indirect electronic ignition with two injectors per cylinder is integrated with the ignition. This is of a static/direct type with capacitive exhaust. The small ignition coils, in other words, are mounted directly on the spark plugs. The designers have paid special attention to fuel feed and combustion because pure methanol is the specified fuel. Methanol has two fundamental properties which make it stand out from other fuels. Its heating power (i.e. number of calories per unit of weight) is about half that of gasoline and specific fuel consumption is double.
Its latent vaporization heat (the calories necessary to vaporize one unit of weight) is two to three times higher than that of gasoline. This creates big problems in starting and in operation under partial loads. However once normal running temperatures are reached the calories taken from the air by the process of vaporization of the mixture actually have a cooling effect in the intake area, negating the need for an intercooler. At the current stage of development the engine has a power of 680 BHP at 11500 rpm and weights 342 lbs. Its extreme compactness has facilitated its accommodation into the March-built chassis.