top of page
Writer's picturePaklong RS

For Sale: Mazda 808 with 12A Rotary Engine








Price: RM 8 800Reg. year: 1980 or olderMileage: 25 000 – 29 999Make: MazdaModel: RX-3Transmission: ManualEngine Capacity: 1200 ccAccessories: 

Mazda 808 Rotary Enjin 12A 6 pot engine good condition engine and powerful2piece rim 15 inch bucket seat Lsd gear box driftable plz call for more info 0173133164 Balan loc: kg jawa klangsource : mudah.my Hi readers, a rare kinda looks is it;) i try to introducing u more details on this Mazda 808 and what is Rotary 12A. Mazda 808It was sold as the Mazda 808 in some export markets such as New Zealand and Australia and Asia Pacific markets and Mazda 818 in many others (presumably due to the usage of numbers with a middle zero by Peugeot for its automotive models). In Japan this model is also known as the Mazda Grand Familia and its top line model is a 2-door coupé with twin round headlamp and a rotary powered engine known as the RX-3. This generation was available in coupé, sedan, and station wagon forms. Engines were inline 4 cylinders and included a 1,272 cc, a 1,490 cc, and a 1,586 cc option.

Engines:

  1. 1973-1976 – 987 cc I4, 50 hp (37 kW)/56 ft·lbf (77 N·m)

  2. 1970-1973 – 1.3 L (1272 cc) TC I4, 2 barrel, 69 hp (51 kW)/67 ft·lbf (92 N·m)

  3. 1973-1976 – 1.6 L (1,586 cc) I4, 80 hp (60 kW)/91 ft·lbf (124 N·m)

808




The Mazda 808 was sold in the US in 1972 and 1973, then updated and sold through 1977. This name was given only to the 1.6 L version of the Grand Familia.




The 808 cost $2997, which was some $200 above the Honda Civic and Toyota Corolla. The car came with a “pleasant” 4-speed manual or 3-speed automatic transmission.



Engines:

  1. 1972-1977 – 1.6 L (1,590 cc) 1600 I41-barrel, 70 hp (52 kW)/82 ft·lbf (111 N·m)


and let me share with u Rotary 12A about,






























Rotary
























































The Mazda Wankel engines (a type of rotary combustion engine) are family of car engines derived from experiments in the early 1960s by Felix Wankel, a German engineer. Over the years, displacement has been increased and turbocharging has been added.


























Wankel engines can be classified by their geometric size in terms of radius (rotor center to tip distance, also the median stator radius) and depth (rotor thickness), and offset (crank throw, eccentricity, also 1/4 the difference between stator’s major and minor axes). These metrics function similarly to the bore and strokemeasurements of a piston engine. Displacement is 3√3radius·offset·depth, multiplied with the number of rotors (note that this only counts a single face of each rotor as the entire rotor’s displacement). Nearly all Mazda production Wankel engines share a single rotor radius, 105 mm (4.1 in), with a 15 mm (0.6 in)crankshaft offset. The only engine to diverge from this formula was the rare 13A, which used a 120 mm (4.7 in) rotor radius and 17.5 mm (0.7 in) crankshaft offset.

Mazda rotary engines have a reputation for being relatively small and powerful at the expense of poor fuel efficiency. They are starting to become popular with kit car builders, hot rodders and in light aircraft because of their light weight, compact size, and tuning potential stemming from their inherently high power to weight ratio[citation needed].

In auto racing, the displacement of a Wankel engine is usually doubled for classing purposes. For calculating taxes in Japan, the displacement of Wankel engines is defined as the equivalent of 1.5 times the nominal displacement, so the 1300 cc 13B engines are taxed as 1950 cc.

Although Wankel rotary engines appear to produce more power per displacement than conventional 4-stroke piston engines, this is actually due to a widely ignored error in the representation of the displacement of piston engines. A 2-stroke piston-based engine fires each piston once per crankshaft rotation, in comparison to a 4-stroke that requires 2 full rotations to fire each piston. This means that a 2-stroke engine should have double the measured displacement of an equally sized 4-stroke engine. When the automotive industry made the leap from 2-stroke, to 4-stroke engines, the advertised displacement remained unchanged, when they should have halved the displacement of the newer 4-stroke engines. When Wankel engines became commonplace in motor sport events, this created the problem of accurate representation of each engine’s displacement, for the benefit of competition. Rather than force the majority of participants (driving piston engine cars) to half their quoted displacement (likely resulting in confusion), most racing organizations simply decided to double the quoted displacement of Wankel engines. [1]










12A






















The 12A is an “elongated” version of the 10A — the rotor radius was the same, but the depth was increased by 10 mm (0.4 in) to 70 mm (2.8 in). Each of its two rotors displaced 573 cc for a total of 1146 cc. The 12A series was produced for 15 years, from May 1970 through 1985. In 1974, a 12A became the first engine built outside of western Europe or the U.S to finish the 24 hours of Le Mans.








In 1974, a new process was used to harden the rotor housing. The Sheet-metal Insert Process (SIP) used a sheet of steel much like a conventional piston engine cylinder liner with a chrome plated surface. The side housing coating was also changed to eliminate the troublesome sprayed metal. The new “REST” process created such a strong housing, the old carbon seals could be abandoned in favor of conventional cast iron.

Early 12A engines also feature a thermal reactor, similar to the 0866 10A, and some use an exhaust port insert to reduce exhaust noise. A lean-burnversion was introduced in 1979 (in Japan) and 1980 (in America) which substituted a more-conventional catalytic converter for this “afterburner”. A major modification of the 12A architecture was the 6PI which featured variable induction ports.

Applications:

  1. 1970–1972 Mazda R100

  2. 1970–1974 Mazda RX-2, 130 hp (97 kW) and 156 Nm (115 ft·lbf)

  3. 1972–1974 Mazda RX-3 (Japan), 110 hp (82 kW) and 135 Nm (100 ft·lbf)

  4. 1972–1974 Mazda RX-4

  5. 1972–1980 Mazda Luce

  6. 1978–1979 Mazda RX-7, 100 hp (75 kW)

  7. Lean-burn

  8. 1979–1985 Mazda RX-7 (Japan)

  9. 1980–1985 Mazda RX-7 (USA)

  10. 6PI

    1. 1981–1985 Mazda Luce

    2. 1981–1985 Mazda Cosmo

click source: wikipedia.org















and so on, what u waiting for. If u desire to have a rare car. This also a perfect choice, plus a good start for a beginner drifter. Ok, that’s all. Salam Motoring.






0 views0 comments

Recent Posts

See All

Kommentare


bottom of page