Below are the 4 most recent journal entries recorded in warrenwoods922's InsaneJournal:

Monday, October 10th, 2011
12:28 am	rotary 13b engine rotary 13b engine I will supply the formulas I utilised at the stop of this post. For now, let's take a search at this chart [http://www.myrotarycar.com/mazdarx8/photographs/13B.MSP.Volumetric.Efficiency.020205.a.gif]. Theoretical Volumetric Air Movement was calculated assuming that a 13B MSP rotary engine has comparable displacement in 720º of crankshaft rotation as a 2.6 Liter, four stroke aide engine. Discover how VE climbs as Motor Pace increases, until finally it reaches 5500rpms. This is ended up the engine is rated to produce peak torque, consequently its secure to suppose that VE will peak at or nearby 5500rpms. Furthermore, you can safely presume that Volumetric Efficiency plotted from engine pace will mimic the form and traits of the torque curve produced by the motor. Be aware that the plotted VE is fairly linear: will start @ eighty% and climbs its way to a tad around one hundred%. If this experiment's outcomes could be validated and the parameters I employed were correct, it would signify that the Renesis engine -on my vehicle at minimum- is in simple fact really efficient for a usually aspirated internal combustion powerplant -VE definition previously mentioned. Calculating Volumetric Effectiveness (VE) for the Renesis (13B MSP) rotary motor: We will use the following values acquired in the course of our knowledge log: Data: Consumption Air Temperature (IAT) = 82ºF Motor Pace (RPM) = 8561rpm AirFlow (MAF) = 27.3lb/minute THEORETICAL AIRFLOW CALCULATION: Formulation: [(ED) x (rpm) x (VE)] / [(ES) x (C)] = TAF Variables: ED = Engine Displacement [in³] rpm = Motor Pace [RPMs] VE = Volumetric Performance [%] ES = Motor Stroke Coefficient [#] Do = Conversion coefficient from in³ to ft³ TAF = Theoretical Air Flow [ft³] Fixing: [(159.64in³) x (8561rpm) x (one)] / [(two) x (1728 in³/ft³)] = TAF TAF = 395.42ft³ Values: ED = 2.six Liters (1308cc x 2) >> 159.64in³ rpm = I selected 8561rpm arbitrarily. VE = Because this corresponds to Theoretical VE, we assume VE = 100% (1) ES = Given that we simplify a 13B motor to a 4 stroke piston engine -hence two.6L- we use a coefficient of 2. C = 1728in³/ft³ AIR DENSITY & TEMPERATURE CALCULATION: Formulation: [(t1) / (t2)] = [(d2) / (d1)] Variables: t1 = Temperature of air for a known density [ºR] t2 = Temperature of the intake air measured by the IAT sensor [ºR] d1 = Density of air for a identified temperature [lb/ft³] d2 = Density of the intake air [lb/ft³] Fixing for [d2]: [(t1) / (t2)] x (d1) = (d2) [(491.67ºR) / (541.67ºR)] x (.0808lb/ft³) = d2 d2 = .073341lb/ft³ Values: t1 = 32ºF >> 491.67ºR t2 = 82ºF >> 541.67ºR d1 = .0808lb/ft³ VOLUMETRIC Flow Rate CALCULATION: Formula: [(MF) / (d2)] = AVF Variables: MF = Mass Flow charge taken from CANScan [lb/moment] d2 = Density of the consumption air [lb/ft³] AVF = Real Volumetric Flowrate [ft³/moment] Fixing: [(27.3lb/minute) / (.073341lb/ft³)] = AVF AVF = 372.233ft³/minute Values: MF = 27.3lb/minute d2 = .073341lb/ft³ VOLUMETRIC Performance CALCULATION: Method: [(AVF) / (TAF)] = VE Variables: AVF = True Volumetric Movement price [ft³/moment] TAF = Theoretical Air Circulation price [ft³/moment] VE = Volumetric Efficiency [%] Solving: (Comment on this)
12:18 am	rotary 13b engine rotary 13b engine Yamamoto's staff at Mazda set to work on creating a rotary motor that would get over the troubles of loss of compression, exhaust, and the overheating of the rotor blades tips, that had constrained Opels results at creating the engineering in the 1950's. Soon after success with before RX designs the RX-2, RX-3 and RX-5 and in spite of financial issues at the business, Mazda eventually came up with the bigger 12A motor which was fitted to the new Mark 1 RX-7 constructed from 1978 right up until 1980 and the series two created from 1981 to 1983. The Mazda Rx-seven was a two seater plus two hardtop jeu coupe, curvaceous and aerodynamic and it right away caught the creativeness of the motoring planet which globally hailed it as an fast style traditional. The design of the car was developed fully around the motor and exhaust configuration. A bi-rotor engine placing out what was seen as equivalent of just 550 bhp for each rotor the 12A in the RX-7 was capable of speeds of more than a hundred thirty mph and with higher low-stop torque arrived at from to 60 mph in just six.3 seconds. Formally its bhp was just one hundred horse electricity but presented how light the vehicle was, it was frequently described as like driving a skateboard, the electricity to weight ratio gave it an output equal to 230 bhp. Exhilarating to generate because of the smoothness inherent in the movement of the Wankel rotary engine, minor vibration or shaking was felt at higher motor speeds. An alarm was fitted to the rev counter to alert the driver when the 7000 rpm redline was approaching. If you exceeded it or did not heed the alarm the motor would lower out to safeguard the ceramic rotor ideas from overheating. The car was pricey to run, the motor consuming close to twenty miles to the gallon but at 50 percent the price of a Porsche and with all the trimming this sort of as electric windows and sun-roofs, the RX-seven was sought by younger and aged alike. Over 475,000 autos have been available with the original Mark one layout. The RX-seven was loved by very good and bad alike and appeared in numerous Television exhibits, commercials and movies. In Japan the automobile was adopted by the unique Tokyo Drifters and street racers because of to its velocity and dealing with. In the United kingdom a modified Turbocompresseur edition of the 12A RX-seven constructed by Elford engineering held the unofficial report for the fastest evening-time lap of the circular M25 motorway that rings London, for five decades. This turbo configuration which utilized the venturi principle to recycle exhaust gases for additional enhance, driven the car to speeds of more than 145 mph and was adopted by Mazda into new 13B motor which powered the best finish Series three production model in Japan from 1984 to 1985. Various modified versions of the RX-seven have been made for various markets close to the planet, with limited output and emissions control system in US variations and numerous bespoke injection and design and style adjustments for the European and domestic Japanese Market. (Comment on this)
12:12 am	rotary 13b engine rotary 13b engine Hailed by many as the most lovely automobile at any time to appear out of Japan, The Mazda RX-seven took seventeen years of growth ahead of it finally appeared on the streets in 1978. Without the perseverance of a staff of Japanese motor engineers and designers underneath the leadership of Kenichi Yamamoto, in the advancement of the Wankel or rotary motor, this stunningly designed, substantial overall performance sports vehicle, would never have took place. In 1961 the Japanese Firm Toyo Kogyo, later to be renamed Mazda, accredited from the patent proprietors NSU-Opel of Germany, the entire rights to develop a new rotary engine. The Rotary engine was named after its inventor Wankel and had no pistons or crankshaft as this kind of, but consisted of a easy fuel injected rotor blade that span close to a central generate-shaft that was attached to a rear wheel differential for drive. In concept the rotary motor is far superior, through its simplicity in design and style, than a standard aide combustion engine, with a lot significantly less heading elements to go wrong and direct drive power output. Yamamoto's team at Mazda set to operate on establishing a rotary motor that would get over the problems of damage of compression, exhaust, and the overheating of the rotor blades tips, that had limited Opels success at developing the engineering in the 1950's. After achievement with previously RX designs the RX-2, RX-3 and RX-5 and despite monetary difficulties at the company, Mazda finally arrived up with the greater 12A engine which was fitted to the new Mark one RX-seven built from 1978 right up until 1980 and the series two created from 1981 to 1983. The Mazda Rx-7 was a two seater plus two hardtop sports coupe, curvaceous and aerodynamic and it immediately caught the creativeness of the motoring globe which globally hailed it as an fast design basic. The layout of the vehicle was created entirely about the motor and exhaust configuration. A bi-rotor motor placing out what was seen as equivalent of just 550 bhp for each rotor the 12A in the RX-seven was capable of speeds of above 130 mph and with large very low-finish torque attained from to 60 mph in just 6.three seconds. Officially its bhp was just 100 horse energy but presented how light the car was, it was frequently described as like driving a skateboard, the energy to fat ratio gave it an output equivalent to 230 bhp. Exhilarating to generate because of the smoothness inherent in the motion of the Wankel rotary motor, small vibration or shaking was felt at substantial motor 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 engine would lower out to defend the ceramic rotor suggestions from overheating. The vehicle was costly to run, the motor consuming all around twenty miles to the gallon but at fifty percent the price of a Porsche and with all the trimming this kind of as electric windows and sun-roofs, the RX-7 was sought by younger and previous alike. Above 475,000 vehicles have been marketed with the original Mark one design. The RX-seven was cherished by good and poor alike and appeared in several Tv reveals, commercials and movies. (Comment on this)
12:06 am	Mazda - The Hope of the Rotary Motor rotary 13b engine Exhilarating to generate because of the smoothness inherent in the movement of the Wankel rotary motor, little vibration or shaking was felt at higher 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 lower out to shield the ceramic rotor suggestions from overheating. The auto was pricey to run, the motor consuming around 20 miles to the gallon but at half the cost of a Porsche and with all the trimming this kind of as electrical windows and sun-roofs, the RX-7 was sought by young and previous alike. More than 475,000 vehicles ended up offered with the unique Mark 1 style. The RX-7 was loved by excellent and undesirable alike and appeared in a lot of Television reveals, commercials and movies. In Japan the vehicle was adopted by the unique Tokyo Drifters and street racers due to its pace and managing. In the United kingdom a modified Turbocompresseur model of the 12A RX-7 developed by Elford engineering held the unofficial report for the fastest night time-time lap of the circular M25 motorway that rings London, for five years. This turbocompresseur configuration which utilised the venturi principle to recycle exhaust gases for extra increase, driven the auto to speeds of above 145 mph and was adopted by Mazda into new 13B engine which driven the leading finish Collection three creation design in Japan from 1984 to 1985. Different modified versions of the RX-seven ended up made for different markets around the globe, with limited output and emissions manage system in US versions and numerous bespoke injection and design and style changes for the European and domestic Japanese Marketplace. Production of the Mazda RX-7 13B continued right up until 1988 with the convertible RX-seven Savannah and the new appear Mark 2 product frequently referred to as the Sequence four, which had despatched some of the Mark 1 basic design lines and looked more like its main competitor, a Porsche 944. Models of the Mazda: From the earlier time, Mazda had been acknowledged as the foreseeable future of the jeu auto and their engines. Some of the number of developed cars in the past were Mazda RX2, RX3, RX4, and RX7 and now the most recent model is the Mazda RX8 which is very best recognized for the successful rotator engines. Another stage of success of the Mazda Company is the new Mazda 16x Rotary Engine which is nicely acknowledged for its combustion engine. The principal characteristic of the engines of the Mazda is the compact design and great electrical power to weight ratio. And this all capabilities are available in just the ability of the one.6 Liters. Attributes of the engines of the Mazda: The new name of the rotary engine of the Mazda is recognized as the "long-stroke rotary motor." In early times, the business was dealing with the 13V rotary motor which has the displacement of the 1300cc and the capability was one.3 Liters. Now the newest designs of the Mazda are getting the engines of displacement appeal of 1600cc which is 800cc x 2 and the capacity is one.six liters. (Comment on this)