Works racer : Blue-Meguro It is the first pure racer machine after the war by the Bonin honeyeater which obtained the government subsidy and was developed for the car race legislated in 1950. It will complete in '52. It is this car that Meguro manufactured with the subsidy with which the research-and- development command of a racer machine was announced publicly to the domestic main two- wheeled vehicle maker by the Ministry of International Trade and Industry which had a sense of impending crisis in the situation of any domestic cars other than Meguro stopping participating, and the grant was carried out at this time though it was a car race aiming at contributing to Japan's improvement in motorcycle technical. Although engine is proportionate to the commercial car Z type(500cc) of those days, it is built by not casting parts but the forge. The reason is reservation of shock intensity. In order to also take the correspondence to sudden acceleration into consideration and to gather inhalation-of-air efficiency, the inlet valve is a diameter of a large compared with the commercial car. Moreover, the measure against heat is also important, and in order to heighten the heat dissipation effect of a head part, the large oil room is taken. For the reason, it is impressive with MW mark attached to the tappet cover by a strangely big engine head serving as an auto racer's feature compared with a commercial car. It is the forge of duralumin because of lightweight-izing which also put the crank connecting rod into practice. It is high cam form with the sufficient efficiency of inhalation of air and an exhaust gas with the cam profile like a racer. An exhaust pipe does not have a muffler. A boa x stroke is the long of 82x94. The development item as a racer has not only engine but a high ratio. (rather as opposed to a chassis) According to the feature of the car race of carrying out the high-speed circumference of that time oval 800 m dirt in the counterclockwise direction, this made the left- hand drive high in order to raise the stability at the time of a corner. And width narrows by rise at the whole and operativity is improved. There is no brake. The fall accident by the contact to which one of the dull factors of a car race occurred frequently. In order to prevent this, it considered as the consideration which cannot perform selfish brake operation by the combat at close quarters. Instead, the carburetor has special composition and engine braking is effective with the structure which the shutter which an idling does not carry out closes completely. Transmission is only two steps, a low and a high. In order to push and start, there is also no kick start. It is admited that such specifications have an effect in safe enforcement of a race very much, and it is succeeded as basic specification of the auto racer which continues from after that now. Using the molybdenum steel pipe with intensity, a frame also sets thickness to 2 mm or less to 5 mm of a commercial car, and is attaining lightweight-ization. A setup of a front fork angle is also quite shallower than a commercial car as 21degree30', and the device which the surroundings improves a corner with a short distance between axes is made. Since race time part capacity is more enough as a fuel tank than a basis, with 10 L, it is small and has been lightweight-ized as much as possible. Magneto ignition, the sprocket slowdown ratio 1:6.17. It is a functional basis that there is no futility generally. Those days, the participation vehicle of a car race was two kinds of the case where it is the racing motorbike which converted the commercial car in the player individual, and the case where a player under exclusive contract is put on it which the maker manufactured. Since the large sum cost of 200,000-300,000 yen per holding period had started in order to appear in a race, the sponsor was required to come out in a player individual. Although it was the participation purpose to test the quality improvement accompanying development of a commercial car etc. for a motorcycle maker, since the propaganda effect was also expectable as it is, especially Meguro was positive. And also after that, relation by the car race was deepened. Although there were dozens of sorts of machines in and outside the country immediately after a car race start, it had become some kinds around 1954. The domestic car became Honda and the pointer other than Meguro, and all the back was in the situation that a player individual uses foreign vehicles, such as Harley, AJS, Norton, JAP, and Triumph, converting them. Those reconstruction vehicles diverted only engine, and the player individual was manufacturing and using the frame. It seems that recognition that the research and development in connection with a cam profile already influence most from that time was carried out although it could not be overemphasized that the technical know-how of a racer machine influenced a match greatly with each player's skill in any case. Moreover, it can be said that the car race was the starting point of motor sports of Japan now that many those who progress rapidly to an overseas international car race, and go through a next domestic amateur race came out out of players etc. After that, based on JAP-Excelsior considered as import and technical reference by the national minicar race meeting union meeting in 1954, the auto racer of Meguro developed the 500 cc single cylinder OHV4 cycle engine, and became an auto racer's standard engine. Moreover, although 650 cc 2-cylinder OHV4 cycle engine was found useful as development and Japanese-made Triumph in reference, T1 Senior(650cc) developed Triumph which was the strongest those days as an object for commercial cars based on this organization. Although the race section of Meguro is abolished by the business tie-up with the Kawasaki airplane industry in 1960, enterprise continuation is made by the car race persons concerned, and it will become independent as the New-Meguro in April, 1963. After Meguro disappears by bankruptcy in 1964, the brand of Meguro is taken over to the Meguro motor which continued and changed the enterprise further after that as an auto racer machine. 500 cc class evolves into a single cylinder OHC4 cycle engine (MP type), In addition, 350cc class for practice: the single-cylinder OHC4 cycle engine, and 600cc class: the single cylinder OHC4 cycle engine (MF type) lineup. In addition, the 650cc class engine of the UK Triumph had won, because parts no longer available, instead, have supplied "Triumph type" 650cc two-cylinder OHV4 cycle engine (MR type). HKS starts to supply "New-Fuji" of the two-cylinder engine in 1988, players were involved in the engine to Meguro it would instead take the new engine, the share of Meguro engine is reduced. Therefore, substantially similar thereto, and it was in against by a newly developed 605cc two-cylinder DOHC4 cycle engine (MW type). However, in the Japan Auto Racing Association from which the engine supplied safely and stably was requested from the player meeting in 1993, integration of new style engine development and engine is determined, and from October, the new style engine "SEAR" which Suzuki developed by selection will replace, and will be used for other brands, such as Meguro. For this reason, although continuation is succession of the Meguro brand considered for more than this to be impossible at the beginning, enterprise continuation is miraculously carried out by supply of the organization for practice, and the maintenance business of the organization for car races containing "SEAR" still now. *** Principal statistics *** *"Blue-Meguro" * Total length : - mm * Full-width : - mm * Total height : - mm * Distance between axis : 1,350 mm * Weight : 195 kgf * Engine type : Single cylinder OHV 4 cycle * Entire aerodynamic volume displacement : 496.5 cc * Installed capacity : 28.0 HP / 5,500 rpm * Full speed : 100 km/h * Fuel economy : - km/L * Transmission : Advance 2 step * Tire : (Front) 3.00~20 / (Rear) 3.25~19 * Starting system : It pushes and starts *Category 2 engine : MP type * Engine type : Single cylinder OHC 4 cycle * Entire aerodynamic volume displacement : 512 cc * Installed capacity : 45.0 HP / 7,500 rpm *Category 1 engine : MR type * Engine type : two cylinder OHV 4 cycle * Entire aerodynamic volume displacement : 650 cc * Installed capacity : 61.0 HP / 7,500 rpm *Category 1 engine : MW type * Engine type : two cylinder DOHC 4 cycle * Entire aerodynamic volume displacement : 605 cc * Installed capacity : 56.0 HP / 7,500 rpm