Flat 4 engine8/1/2023 ![]() The new Sachs clutch kit included a fresh pilot bearing, and the flywheel was also replaced.ĭocumentation includes invoices listing the parts and labor for the build, which totaled $17,300.Īn October 2016 dynamometer sheet indicates the engine produced 196 corrected horsepower at 5,500 rpm and 228 lb-ft of torque at 4,000 rpm. The throttle linkage was re-plated, and a Bosch 009 distributor was installed along with Pertronix ignition.Ī 911 engine fan is paired with a red FAT shroud. Weber downdraft carburetors feature 130 main jets and 190 air jets. Generator/Alternator Pulley FLAT4, Crank Pulley Standard Aluminium, Pulley Bolt Flat-4, Classic Style Air Cleaner IDF, Classic Style Air Cleaner, Oil. The downside of a boxer engine from a balance perspective is that. Finned aluminum valve covers are installed. Flat fours balance those secondary forces, while inline-fours don’t, often requiring balance shafts to cancel out vibrations. FAT’s FC445 camshaft produces 0.495” lift with 302° of duration. 48mm intake and 38mm exhaust valves were fitted with dual springs. The cylinder heads were ported, matched to their manifolds, and polished. The crankshaft, rods, pistons, and flywheel were balanced. The 105mm pistons and cylinders make 8.5:1 compression. ![]() An 82mm stroke crankshaft is installed, and new pushrods and Web lifters were also fitted. This Type 4 engine is now offered at no reserve in Del Mar, California with a dynamometer sheet and build invoices.Įngine case GC000326 was align bored, decked, and modified for windage. The most common type of flat-four engine is the boxer-four engine, each pair of opposed pistons moves inwards and outwards at the same time. In Europe, the four-cylinder cars were sold as Volkswagen-Porsches, at Volkswagen dealerships. Volkswagen versions originally came with an 80 horsepower (60 kW) fuel-injected 1.7-litre flat-4 engine based on the Volkswagen air-cooled engine. A new clutch was also installed, and the total build cost was $17,300. A flat-four engine, also known as a horizontally opposed-four engine, is a four-cylinder piston engine with two banks of cylinders lying on opposite sides of a common crankshaft. The Type 4 engine was also used on the Volkswagen version of the Porsche 914. Induction is from Weber carburetors, and a 911 fan is paired with a red FAT shroud. The cylinder heads were ported, polished, and fitted with larger valves, and a FAT FC455 camshaft was installed along with new rods and lifters. An 82mm stroke crankshaft is paired with 105mm pistons, increasing displacement by 42 percent. Compared to a flat-four-cylinder engine, the more upright cylinder head makes the V4 engines easy to operate and maintain. However, V4 has its benefits naturally, it is shorter than an inline 4-cylinder, ideal for packaging. FAT Performance disassembled the donor engine and modified or replaced components with the intent of making a lot of torque for street use. The center of gravity of the V4 engines is higher than the center of gravity of the flat 4-cylinder engines. The intention was to install this modified engine into a 912, however the seller has moved onto a different project. The seller provided a 2.0-liter Type 4 donor, which came from a Porsche 914. This air-cooled 2,840cc flat-four was built by FAT Performance in June 2016.
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