Below are the 4 most recent journal entries recorded in brettrichard717's InsaneJournal:

Wednesday, October 5th, 2011
12:32 am	rotary 13b engine rotary 13b engine If you exceeded it or did not heed the alarm the engine would lower out to shield the ceramic rotor guidelines from overheating. The vehicle was expensive to run, the engine consuming all around twenty miles to the gallon but at 50 percent the price of a Porsche and with all the trimming this sort of as electrical windows and sun-roofs, the RX-seven was sought by younger and aged alike. Around 475,000 vehicles had been available with the original Mark 1 layout. The RX-7 was cherished by good and negative alike and appeared in many Television reveals, commercials and movies. In Japan the car was adopted by the unique Tokyo Drifters and street racers because of to its speed and handling. In the Uk a modified Turbo edition of the 12A RX-seven built by Elford engineering held the unofficial record for the fastest night time-time lap of the circular M25 motorway that rings London, for five years. This turbo configuration which utilised the venturi principle to recycle exhaust gases for further increase, powered the automobile to speeds of around 145 mph and was adopted by Mazda into new 13B motor which driven the top rated conclude Sequence three creation model in Japan from 1984 to 1985. Different modified variations of the RX-seven ended up made for distinct markets around the planet, with restricted output and emissions manage technique in US variations and various bespoke injection and layout adjustments for the European and domestic Japanese Market. Production of the Mazda RX-seven 13B continued right up until 1988 with the convertible RX-seven Savannah and the new search Mark 2 model usually referred to as the Series 4, which had despatched some of the Mark 1 traditional layout lines and looked more like its major competitor, a Porsche 944. The RX7 product from the residence of Mazda was introduced for the first time throughout the year 1978 and the manufacturing of the automobile was stopped in the yr 2002 right after a substantial creation of about 811,634 units in complete. The Mazda RX7 falls beneath the category of midsize jeu cars. The car was released as a predecessor to the Mazda RX3. The base design of the RX7 attributes the twin rotor 1146cc Wankel rotary motor with front mid ship, providing the rear wheel drive. The base model RX7 was a sports coupe product created with the light-weight physique style and compact rotary motor or the Wankel engine mounted behind the front axle. The vehicle was offered as a two seat coupe in the states of America with optional rear seats in the countries of Australia, Japan and in the other nations of the globe. The Mazda RX7 was in a list of ten greatest lists conducted by the Car and Driver magazine for 5 times. The last product made in the RX7 series was supplied in a few types of engines - the one.3 liter 13B REW that developed 188 kilo watts of electricity, 1.3 liter 13B REW that produced 206 kilo watts of power and the 1.3 liter 13B REW that developed 195 kilo watts of power. The jeu variant of RX7 was presented in the two the four-velocity automatic and in the five-velocity handbook transmissions. (Comment on this)
12:16 am	Mazda 16x - The Potential of the Rotary Motor rotary 13b engine The Mazda RX2, Mazda RX3, Mazda RX4, Mazda RX7 and now Mazda RX8 are all examples of productive rotary engine sports activities cars. The New Mazda 16x Rotary Motor must more popularize this offbeat combustion motor which capabilities (as rotaries often have) a compact layout with an extraordinary energy-to-fat ratio all in just 1.6 Liters. Mazda is calling this new rotary motor the "prolonged-stroke rotary engine." As you could already know, the 13B rotary motor has a displacement of just 1300cc, which is 1.3 Liters. Even though the Mazda 16x has an engine displacement of 1600cc (800cc x two), which is one.six Liters and even though they've made the 16x considerably more substantial than the 13B - it weighs less than a 13B. This is because of to aluminum side housings, which Mazda states shouldn't scare us. Mazda's purpose right here is "greater thermal efficiency" - which basically signifies, any vehicle powered by the Mazda 16x is going to shift like stink. Mazda states this [thermal efficiency] will improve torque at all engine speeds. (Rotary engines are notorious for obtaining very low torque, specifically on the very low-conclude.) They've also additional Immediate Fuel Injection so you can assume the 16x to be considerably a lot more affordable when compared to rotaries of the earlier. Unsafe emissions will be tremendously reduced as properly and power should be marginally improved compared to frequent multi-position fuel injected rotaries these as the 13B. This should lean the fuel-air combination out as effectively and could boost the rotaries nasty habit of flooding each and every time you move her down the street a block. Mazda has accomplished extraordinary items with their light and sporty one.three Liter 13B - just picture what they can do with this new Mazda 16x! Greater nevertheless, just envision what you could do with this new Mazda 16x rotary engine! Sadly, nevertheless, Mazda has but to announce a manufacturing motor vehicle to carry the 16x. The closest we've gotten is the Mazda Taiki, a far-out prototype produced by Mazda below the "Nagare"(which is, Japanese for "flow") idea of style. So when will we see this new rotary motor in motion? Many anticipated this new rotary engine to appear in the 2009 Mazda RX8, but when the cover was pulled off at the North American Worldwide Car Present in Detroit, we saw nothing but the Mazda 13B MSP Renesis engine beneath it's glimmering hood. To answer the issue your guess is as excellent as mine. (Comment on this)
12:00 am	rotary 13b engine rotary 13b engine In 1961 the Japanese Firm Toyo Kogyo, later on to be renamed Mazda, certified from the patent owners NSU-Opel of Germany, the total rights to create a new rotary motor. The Rotary engine was named after its inventor Wankel and had no pistons or crankshaft as such, but consisted of a simple fuel injected rotor blade that span about a central generate-shaft that was attached to a rear wheel differential for drive. In principle the rotary motor is far superior, by way of its simplicity in design, than a conventional piston combustion engine, with significantly a lot less shifting components to go wrong and direct generate power output. Yamamoto's team at Mazda set to function on creating a rotary engine that would conquer the troubles of damage of compression, exhaust, and the overheating of the rotor blades suggestions, that had restricted Opels achievement at developing the engineering in the 1950's. After achievement with earlier RX types the RX-2, RX-3 and RX-5 and in spite of financial difficulties at the business, Mazda lastly arrived up with the greater 12A motor which was fitted to the new Mark 1 RX-7 developed from 1978 until finally 1980 and the collection 2 built from 1981 to 1983. The Mazda Rx-seven was a two seater additionally two hardtop sports activities coupe, curvaceous and aerodynamic and it instantly caught the creativity of the motoring earth which globally hailed it as an quick style classic. The style of the car was constructed entirely around the engine and exhaust configuration. A bi-rotor motor putting out what was seen as equivalent of just 550 bhp per rotor the 12A in the RX-7 was capable of speeds of above 130 mph and with large very low-finish torque reached from to sixty mph in just 6.3 seconds. Officially its bhp was just one hundred horse energy but offered how light the car was, it was usually described as like driving a skateboard, the electricity to weight ratio gave it an output equal to 230 bhp. Exhilarating to generate since of the smoothness inherent in the motion of the Wankel rotary engine, tiny vibration or shaking was felt at substantial engine speeds. An alarm was fitted to the rev counter to warn the driver when the 7000 rpm redline was approaching. If you exceeded it or did not heed the alarm the motor would reduce out to defend the ceramic rotor ideas from overheating. The auto was high-priced to operate, the engine consuming about 20 miles to the gallon but at 50 % the price tag of a Porsche and with all the trimming such as electric windows and sun-roofs, the RX-7 was sought by younger and outdated alike. Above 475,000 automobiles were offered with the original Mark one design and style. The RX-seven was cherished by excellent and poor alike and appeared in many Tv reveals, commercials and films. In Japan the car was adopted by the authentic Tokyo Drifters and road racers because of to its pace and managing. In the Uk a modified Turbo model of the 12A RX-seven constructed by Elford engineering held the unofficial file for the quickest evening-time lap of the circular M25 motorway that rings London, for five decades. (Comment on this)
Tuesday, October 4th, 2011
11:44 pm	rotary 13b engine rotary 13b engine A aide motor requires 720º of crank rotation to comprehensive a cycle. In a rotary motor, 720º will generate four combustion strokes: </ul> 360º of crank rotation => two combustion strokes. 720º = 360º x two 720º of crank rotation => four combustion strokes. 4 strokes = 654cc x 4 four strokes = 2616cc For simplicity reasons, we can stipulate that a 1.3L, two rotor rotary motor is comparable to a two.6L 4 piston, four stroke aide motor. It might not be academically proper, but it is a reasonably simple way of visualizing how the relaxation of this write up and the formulas that are normally applied to piston engines can be utilized to a rotary motor. Furthermore, applying the same calculations utilized to decide Volumetric Effectiveness (VE) on a piston engine, but for a rotary motor will yield optimistic results. If we had been to think about the rotary engine, a four stroke motor with a displacement of one.3L, the benefits would render a VE of around a hundred% in a lot more than one particular instance, which is extremely unrealistic. Did I make any feeling? Mmm possibly not but, check out to stick to the up coming measures as I attempt to make feeling out of what I have gathered so far. A small experiment... Well, right now I eventually gave up and decided to do a tiny experiment that I identified while looking for an successful strategy to compute Volumetric Effectiveness on a motor vehicle with out getting to yank the motor from the vehicle. I arrived across the subsequent experiment: Calculating your automobiles volumetric efficiency I will suppose that you are possibly much too lazy or tired to follow the hyperlink, so I will describe a bit on what does the experiment entail. The expertise demands the following: (1)motor vehicle with an engine (1)OBD-II Scan Tool (1)stock air consumption with a Mass Air Circulation sensor (MAF) in stock trim -according to the writer, a minor variance from factory stock, this kind of as getting rid of the display or repositioning the sensor will give the experiment small value- (1)stretch of private, safe, deserted road. When you have acquired all those objects the treatment is instead painless. Attach the scan tool to the automobile and make sure it can report the subsequent items: Motor RPM, Intake Air Temperature & Air Flow. Using the deserted stretch of personal road, run the automobile from a reduced engine rpm (2500rpm) @ WOT to redline (or as far as you want your sample to go..) whilst recording Consumption Air Temperature (IAT), Motor Speed (RPM) & Intake Mass Air Circulation (IMAF). Once you have your info logged, re-read the experiment from the website link provided and commence crunching numbers! Its principle seems straight forward: primarily based on the calculated theoretical volumetric air flow for your motor (a Renesis in this situation), and the information you logged, you can approximate the true VE of your certain motor. I will provide the formulas I utilized at the stop of this post. For now, let us take a look at this chart [http://www.myrotarycar.com/mazdarx8/photos/13B.MSP.Volumetric.Performance.020205.a.gif]. Theoretical Volumetric Air Flow was calculated assuming that a 13B MSP rotary engine has equivalent displacement in 720º of crankshaft rotation as a two.six Liter, 4 stroke piston engine. (Comment on this)