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All mazda 323 gtxMazdarotary enginerotary engines are essentially a single family - they all derive from the firstrotary engineexperiments in the early 1960smazda 323,mazda 323 gtx,mazda 323 gtx for saleOver the years, displacement has been increased (somewhat) mazda 323 gtx , and turbocharging has been added to great effectmazda 323,mazda 323 gtx,mazda 323 gtx for saleThis is the engine family that made Mazdafamousmazda 323,mazda 323 gtx,mazda 323 gtx for sale
In auto racingand for Japanese tax purposes, the displacement of rotarymazda 323 gtx engine engines is defined as the equivalent of 1.5 times the nominal displacementmazda 323,mazda 323 gtx,mazda 323 gtx for saleSo the 1.3 L 13B engines count as just under 2.0 L for these purposes mazda 323,mazda 323 gtx,mazda 323 gtx for sale
rotary enginemazda 323 gtx engines can be classified by their rotor size in terms of width (diameter) and depth (thickness)mazda 323,mazda 323 gtx,mazda 323 gtx for saleThese metrics function similarly to the bore and stroke measurements of a piston engine mazda 323,mazda 323 gtx,mazda 323 gtx for sale
mazda 323 gtx Nearly allMazdaproductionrotary engineengines share a single rotor diameter: 105 mm (4.1 in) with a 15 mm (0.6 in) crankshaft offsetmazda 323,mazda 323 gtx,mazda 323 gtx for saleThe only engine to diverge from this formula mazda 323 gtx was the rare 13A, which used a 120 mm (4.7 in) diameter and 17.5 mm (0.7 in) offsetmazda 323,mazda 323 gtx,mazda 323 gtx for sale
40A
Mazda's first prototyperotary enginewas the 40A, a single-rotor enginemazda 323 gtx very much like the NSU KKM400mazda 323,mazda 323 gtx,mazda 323 gtx for saleAlthough never produced in volume, the 40A was a valuable testbed for Mazdaengineers, and quickly demonstrated two serious challenges to the feasibility of the design:mazda 323 gtx chatter marks in the housing and heavy oil consumptionmazda 323,mazda 323 gtx,mazda 323 gtx for saleThe chatter marks, nicknamed devil's fingernails, were caused by improper sealing at the apex of the rotor mazda 323,mazda 323 gtx,mazda 323 gtx for saleThe oil consumption problem was mazda 323 gtx addressed with heat-resistant rubber oil seals at the sides of the rotorsmazda 323,mazda 323 gtx,mazda 323 gtx for saleThis early engine had a rotor diameter of 90 mm (3.5 in) , an offset of 14 mm (0.6 in) mazda 323 gtx , and a depth of 59 mm (2.3 in)mazda 323,mazda 323 gtx,mazda 323 gtx for sale
L8A The very first MazdaCosmo prototype used a 798 cc L8A two-rotorrotary enginemazda 323,mazda 323 gtx,mazda 323 gtx for saleThe engine and car mazda 323 gtx were both shown at the 1963 Tokyo Motor Showmazda 323,mazda 323 gtx,mazda 323 gtx for saleHollow cast iron apex seals reduced vibration and thus chatter marks mazda 323,mazda 323 gtx,mazda 323 gtx for saleIt used dry-sump lubrication mazda 323,mazda 323 gtx,mazda 323 gtx for saleRotor diameter was up from the mazda 323 gtx 40A to 98 mm (3.9 in) , but depth dropped to 56 mm (2.2 in)mazda 323,mazda 323 gtx,mazda 323 gtx for sale
One-, three-, and four-rotor derivatives of the L8A were also created for experimentation mazda 323,mazda 323 gtx,mazda 323 gtx for sale
mazda 323 gtx 10AThe 10A series was Mazda's first productionrotary engine, appearing in 1965mazda 323,mazda 323 gtx,mazda 323 gtx for saleIt was a two-rotor design, with each displacing 491 cc for a total of 982 cc mazda 323,mazda 323 gtx,mazda 323 gtx for saleThese mazda 323 gtx engine featured the mainstream rotor dimensions with a 60 mm (2.4 in) depthmazda 323,mazda 323 gtx,mazda 323 gtx for sale
The rotor housing was made of sand-cast aluminum plated with chrome, while the aluminum sides were sprayed with mazda 323 gtx molten carbon steel for strengthmazda 323,mazda 323 gtx,mazda 323 gtx for saleCast iron was used for the rotors themselves, and their eccentric shafts were of expensive chrome-molybdenum steel mazda 323,mazda 323 gtx,mazda 323 gtx for saleThe addition of aluminum/carbon apex seals addressed the chatter mazda 323 gtx mark problemmazda 323,mazda 323 gtx,mazda 323 gtx for sale
0810 The first 10A engine was the 0810, used in the Series I Cosmo from May, 1965 through July, 1968 mazda 323,mazda 323 gtx,mazda 323 gtx for saleThese cars, and their revolutionary engine, weremazda 323 gtx often called L10A modelsmazda 323,mazda 323 gtx,mazda 323 gtx for saleGross output was 110 hp (82 kW) at 7000 RPM and 130 Nm (96 ft.lbf) at 3500 RPM, but both numbers were probably optimistic mazda 323,mazda 323 gtx,mazda 323 gtx for sale
The 10A mazda 323 gtx featured twin side intake ports per rotor, each fed by a one of four carburetor barrelsmazda 323,mazda 323 gtx,mazda 323 gtx for saleOnly one port per rotor was used under low loads for added fuel economy mazda 323,mazda 323 gtx,mazda 323 gtx for saleA mazda 323 gtx single peripheral exhaust port routed hot gas through the coolest parts of the housing, and engine coolant flowed axially rather than the radial flow used by NSUmazda 323,mazda 323 gtx,mazda 323 gtx for saleA bit of oil was mazda 323 gtx mixed with the intake charge for lubricationmazda 323,mazda 323 gtx,mazda 323 gtx for sale
The 0810 was modified for the racing Cosmos used at Nürburgring mazda 323,mazda 323 gtx,mazda 323 gtx for saleThese engines had both side- and peripheral-located intake ports switched with a mazda 323 gtx butterfly valve for low- and high-RPM use (respectively)mazda 323,mazda 323 gtx,mazda 323 gtx for saleBy: Jon beal |
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