Often, the best starting point for your build is with a Mazda Remanufactured motor. You get all new seals, gaskets, and bearings. We find that nearly all Mazda Reman engines have brand new rotor housings as well as other hard parts. If not brand new, all parts are within Mazda spec. If you damaged a rotor housing or rotor, it is usually not cost effective to rebuild your existing engine.
This is great for many applications. Form those wanting to take it a step further, we offer our Stage 1 MSP motor.
We take a Mazda Reman motor, disassemble it, perform our modifications for better performance and longer service life, and reassemble it to our specifications. This especially beneficial in racing applications. Our Stage 1 motor has the following upgrades:.
All seal clearances are set to our specifications and are consistent throughout the motor. The result is higher compression, more power, and reduced blowby. Mazda tolerances are fine for general applications, but surprisingly inconsistent and loose for a performance application. Each motor includes a blueprintining sheet. These motors already have some of the largest ports of any rotary engine and there is little to gain for the added cost.
You must be logged in to post a review. This site uses Akismet to reduce spam. Learn how your comment data is processed. Categories: EngineMazdaRX Description Additional information Reviews 0 Description Often, the best starting point for your build is with a Mazda Remanufactured motor.
Our Stage 1 motor has the following upgrades: -Blueprinting All seal clearances are set to our specifications and are consistent throughout the motor. Available Upgrades Include: We can upgrade the stock apex seals with a stronger and more resilient version. These will take more abuse than the stock seals. Heavy-duty coolant seals are fitted for better resistance to high temperature.
Viton orings are used for resilience to fuels such as E85 and other alcohol blends. Oil modifications: Involves smoothing and enlarging of the oil passages around the oil pump, pickup tube, and galleys to the bearings.
The stock castings are relatively rough. We enlarge the passages and smooth them for better flow. We also enlarge the passages to the rear bearing, as this gets fed oil last. Finally, we eliminate the problematic thermopellet in the eccentric shaft, which starves the engine oil for faster warmup emissions and is prone to sticking shut, leading to bearing failure.
Performing these modifications allows for better oil flow throughout the motor and longer bearing life. Coolant modifications: This modification involves porting a series of bevels in the coolant passages around the spark plug area in the rotor housings. This is the hottest part of the engine. This allows for more surface area for the coolant to pass over, therefore removing more heat from the motor.We offer a few different types of engine porting. Street Porting : Gas mileage is typically not affected.
Stock turbo s and computer works just fine, although some form of fuel enrichment should be used. Advanced port timing gives awesome power through the midrange and spools turbos a lot quicker.
This is the port where your idle quality deteriorates. This port can be customized to your specification.
13B Engine Porting
We can also enlarge the typical street port to provide an even more aggressive powerband. We call this type of port a "Race Port". It provides a rough idle but creates significantly more power at higher rpms. Typically this type of port is used in race engines and is on the edge of being suitable for street use as it is generally harder to start and idles poorly.
Peripheral Porting : This is the most extreme type of porting for your rotary engine. Peripheral porting involves completely sealing the side intake ports on the engine irons and creating a very large port on the rotor housing itself. We definitely do not recommend this for any kind of street use. You can expect NA power output of over whp at around 9,rpm with this kind of porting.
It is also not recommended to use steel apex seals as they chatter at this high rpm and can cause housing damage. Miata 13B Rotary Mount Kit. Add to Cart warning. More from this collection.The 13B engine is widely known Mazda Wankel engine. It was produced over 30 years and offered for many Mazda's models including the RX-7 - legendary Japanese sports car. This Mazda rotary engine has a two-rotor design like its predecessor the 12A.
Mazda following the tradition has left the radius of rotors unchanged starting from the 10A engine. The thickness of rotors was increased to 80 mm 3. The 13B looks like a lengthened version of the 12A in this case. The total displacement of two chambers is cc 1. The first 13B engines had carburetor fuel system and single distributor in the ignition system. Cars using this engine used the AP name In the future, the engine was switched to injection. This engine also received a unique intake manifold with two-level intake box which provided a supercharger-like effect from the Helmholtz resonance.
The new technology significantly improved power and torque of naturally aspirated 13B engines. This non-turbo engine was equipped with the 6PI, DEI systems, and four-injector electronic fuel injection. There are not variable intake and 6PI systems. The 13B-T engine features the four port intake design which similar to early 13B engines from 70's. The use of a turbocharger gave the noticeable improvement in torque. The output of late 13B-T was hp kW at rpm and lb-ft Nm at rpm.
The REW indicates that it is a rotary engine supercharged by twin sequential turbochargers. This is the first engine in the mass-production with such turbocharger system. The second turbo receives a full share of exhaust flow and adds its boost with the primary turbo after 4, rpm. The small one provides the boost from 1, rpm up to 4, rpm where the bigger turbocharger designed for higher rpm starts boosting up to 8, rpm. This tandem minimizes the turbo lag very well. The 13B-REW was equipped with hardened apex seals to manage the high boost and additional loads.
There are thin wall cast-iron rotors, four platinum-tipped spark plugs two per rotora free flow exhaust, enhanced cooling, revised intake and better lubrication system.
The 13B-REW was fitted with standard with an air-to-air intercooler. At the beginning of sales, the engine produced hp kW at 6, rpm and lb-ft Nm of torque at 5, rpm.
Mazda 13B Rotary 1.3L Engine Review
In the power was increased up to hp, and since the engine output was hp. The production of the 13B-REW engine was continued up to The engine is unique and still very popular among tuners and sports teams in various types of racing competitions. Rotary engines are not practical for a daily driver period.The Toyota B engine family was a series of inline-four diesel engines. Toyota also had a 3. The earlier engine was used in early Toyota cars and trucks and in the first version of the Land Cruiser when it was known as the BJ Jeep.
The later engine was used in later versions of the Land Cruiser. The two engines are unrelated and were not made at the same time. Toyota made 5 generations of the B family engines, each one identified with a number before the B letter. Also, Toyota uses a series of letters to identify technical improvements to their engines:. Since the B family are inline-fours, that means that the engine uses 16 valves.
Compression ratio is A direct-injection version later appeared, called the 14B. Same as the B but with direct injection. Same as the 3B but with direct injection. The 13B-T is a turbocharged version of the 13B engine, with a compression ratio of Same as the 4B but with direct injection. The 14B is a 3. The 15B-F is a 4. The 15B-FT is a 4. The 15B-FTE is a 4.Dorito Power! Turbo Bigger than the Engine! (13b RX7)
Toyota B engine. Also, Toyota uses a series of letters to identify technical improvements to their engines: - The number 1 one before the number of the engine model means that the engine uses direct injectionotherwise, indirect injection - The F letter after the B letter means that the engine is multivalvular.
Toyota B engine
Japan: Japan Automobile Manufacturers Association.The Mazda Wankel engines are a family of Wankel rotary combustion car engines produced by Mazda.
Wankel engines were invented in the early s by Felix Wankela German engineer. Over the years, displacement has been increased and turbocharging has been added. Mazda rotary engines have a reputation for being relatively small and powerful at the expense of poor fuel efficiency. The engines became popular with kit car builders, hot rodders and in light aircraft because of their light weight, compact size, tuning potential and inherently high power-to-weight ratio —as is true for all Wankel-type engines.
Since the end of production of the Mazda RX-8 inthe engine was produced only for single seater racing[ citation needed ] with the one-make Star Mazda Championship being contested with a Wankel engine until ; the series' transition to using a Mazda-branded piston engine in completely ended the production of the engine, although Mazda have proposed several concepts for the engine's future.
These metrics function similarly to the bore and stroke measurements of a piston engine. As Wankel engines became commonplace in motor sport events, the problem of correctly representing each engine's displacement for the purposes of competition arose.
Rather than force the majority of participants driving piston engine cars to halve their quoted displacement likely resulting in confusionmost racing organizations simply decided to double the quoted displacement of Wankel engines. The key for comparing the displacement between the 4-cycle engine and the rotary engine is in studying the degrees of rotation for a thermodynamic cycle to occur. The rotary engine is different. Obviously, there is a disparity. How can we get a relatable number to compare to a 4-stroke engine?
That's a well-reasoned number and now gives something that can be compared to other engines. The 13B therefore compares well to a 2. Although never produced in volume, the 40A was a valuable testbed for Mazda engineers, and quickly demonstrated two serious challenges [ citation needed ] to the feasibility of the design: "chatter marks" in the housing, and heavy oil consumption.
The chatter marks, nicknamed "devil's fingernails", [ citation needed ] were caused by the tip-seal vibrating at its natural frequency. The oil consumption problem was addressed with heat-resistant rubber oil seals at the sides of the rotors. The engine and car were both shown at the Tokyo Motor Show.
Hollow cast iron apex seals reduced vibration by changing their resonance frequency and thus eliminated chatter marks. It used dry-sump lubrication. One- three- and four-rotor derivatives of the L8A were also created for experimentation.
The 10A series was Mazda's first production Wankel, appearing in The rotor housing was made of sand-cast aluminum plated with chrome, while the aluminum sides were sprayed with molten carbon steel for strength. Cast iron was used for the rotors themselves, and their eccentric shafts were of expensive chrome-molybdenum steel.
These cars, and their revolutionary engine, were often called L10A models. The 10A featured twin side intake ports per rotor, each fed by one of four carburetor barrels. Only one port per rotor was used under low loads for added fuel economy. A 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 NSU.
A bit of oil was mixed with the intake charge for lubrication.Design houses will rent different venues in Manhattan to liquidate their samples, over-runs and sometimes flawed pieces at a fraction of the retail price. No returns be absolutely sure that you want the item. If you live in the area be sure to get on their email list you will be notified of the next designer sale in their venue.
Never miss another sample sale, sign up with your email at www. If you like to shop the quaint boutiques, expect them to have sales only twice a year. Small shops are more careful about purchases and production. Some continually producing small runs throughout the year and others but only twice a year.
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Tip: Know the value of the label before you buy. Always check your garment for flaws and ask the store clerk about the return policy. There are so many wonderful second-hand thrift shops in the city, from charity shops to independent second-hand stores. New York has the best second-hand stores because it is a well-to-do city with New Yorkers who love donating to a good cause. You can find many better thrift and vintage shops on www. Many items are brand new and are donated by businesses and local designers.
Wear clothing that you can easily try clothing over. Clean your second-hand clothing before you wear it.
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