Porsche 928 engine




Porsche 928 engine

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    Porsche Find out more about the design of the innovative V-8 Porsche There was no doubting the efficiency of the engine. It was not, as some.

    Porsche History, Pictures, and Information. From the outset, the new liquid- cooled, front-engine car was designed to address the shortcomings of the.

    Porsche 928 engine

    Porsche 928 engine

    The dashboard appears elevated and the hood, long. Second-hand models' value decreased as a result of high maintenance costs due to spare parts that are expensive to manufacture. The engine design started with a unique set of requirements, as not a whole lot of other races begin at 9, feet above sea level. Bosch ABS brakes optional for the first time in Porsche.

    Porsche 928 engine

    Porsche 928 engine

    Porsche 928 engine

    Porsche 928 engine

    Porsche 928 engine

    Porsche - Wikipedia

    For a frame of reference, the SOHC 4. Leading that movement is the aptly named Motorsports. One of the biggest impediments of the engine from factory is the OEM intake manifold, especially in a high-performance application like this. As usual, developments and discoveries are made while building a halo product that trickle down into our related products and improve them as well.

    The engine design started with a unique set of requirements, as not a whole lot of other races begin at 9, feet above sea level. While the original single-cam engine debuted in , the dual-cam model came alive in the model year, and two years later, the cylinder head design underwent a significant overhaul.

    Porsche 928 engine

    This Motorsports-built beast is based on that revision and sports some serious displacement by Porsche V8 standards to help achieve such impressive power numbers. Starting with a Porsche Alusil hypereutectic aluminum-silicon alloy engine block, Fausett had the OEM cylinder liners replaced with dry ductile-iron cylinder liners to accommodate the 4. Connecting the pistons to the crank are a set of Oliver parabolic rods, made from E steel. Fausett chose Total Seal Gapless rings for the pistons, Porsche main bearings, and Clevite rod bearings for the combination.

    The crankshaft is a custom billet piece, expertly carved from steel, with a 3. For oiling, the OEM Porsche oil pump is used, along with the OEM oil pan, which has been extensively modified with a custom windage tray and crank scrapers by Motorsports. Up top, the cylinder heads started off life as the revised Porsche four-valve-per-cylinder dual overhead camshaft castings that debuted in , which Motorsports has heavily worked over. Starting at the valve, every port in the head got the transition from back-of-valve to runner reworked to minimize restriction.

    Porsche 928 engine

    Once Fausett was happy with the shape, the ports were then enlarged to flow cfm at. Significantly oversized intake valves have been fitted into the semi-hemispheric combustion chambers.

    Single Motorsports beehive valve springs control the valve motion, while lightweight hydraulic cam followers translate cam lobe data to the valves.

    With the sheet-aluminum plenums removed, you can see the custom-made glass-filled nylon intake runners, along with getting a better look at the DOHC cylinder heads. Notice how narrow the cylinder heads are, compared to other, modern DOHC head designs. Controlling the valves are a set of four custom Motorsports camshafts with.

    Porsche 928 engine

    The cams are dialed in with a degree lobe separation angle. One of the largest restrictions on a engine is the intake manifold itself. For this project, Motorsports created a custom intake manifold of their own design out of glass-filled nylon runners and aluminum sheetmetal plenums—yes, plural.

    The ignition is also controlled by the TecGT system, with the Electromotive coil-per-plug system, and spent exhaust gasses are routed out of the engine via a set of custom MSDS long-tube headers, which have been Jet-Hot coated. An Aeromotive Eliminator fuel pump inside of a Fuel Safe cell feeds the engine with Sunoco octane gasoline. The key to the big power numbers is the Vortech V7 YSi centrifugal supercharger.

    Porsche 928 Engine Training Video (1 of 3)



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