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The main advantage of the reverse-flow cylinder head is that both the entering inlet charge and the exiting exhaust gas cause a tendency to swirl in the same direction in the combustion chamber. [1] In a crossflow head the inlet and exhaust gases promote swirl in opposite directions so that during overlap the swirl changes directions.
A crossflow head gives better performance than a Reverse-flow cylinder head (though not as good as a uniflow), but the popular explanation put forward for this — that the gases do not have to change direction and hence are moved into and out of the cylinder more efficiently — is a simplification since there is no continuous flow because of valve opening and closing.
In engine technology a reverse flow cylinder head is one that locates the intake and exhaust ports on the same side of the engine. Reverse logistics, i.e. goods/waste flowing in the distribution network having consumers as point of origin; Reverse electron flow is a mechanism in microbial metabolism
The low-rise intake, designed to fit under a low hoodline, was the first. The high-rise intake required a hood bubble for clearance. While the low- and medium-rise heads could be used in combination with either low- or medium-rise intakes, the high-rise head required a high-rise intake due to the increased height of the intake port.
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The F engine family from Mazda is a mid-sized inline-four piston engine with iron block, alloy head and belt-driven SOHC and DOHC configurations. Introduced in 1983 as the 1.6-litre F6, this engine was found in the Mazda B-Series truck and Mazda G platform models such as Mazda 626/Capella as well as many other models internationally including Mazda Bongo and Ford Freda clone, Mazda B-series ...
Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve their air flow. Cylinder heads , as manufactured, are usually suboptimal for racing applications due to being designed for maximum durability.
1G-FE. The DOHC 1G-FE uses a narrow valve angle and other fuel economy optimizations. It was introduced in 1988, it features a cast iron block with aluminum cylinder head and uses the slave cam system. Output was 135 PS (99 kW; 133 hp) at 5,600 rpm and 176 N⋅m (130 lb⋅ft) at 4,400 rpm.
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