Below are the 4 most recent journal entries recorded in christianduf410's InsaneJournal:

Wednesday, September 28th, 2011
5:41 pm	mazda rx8 engine mazda rx8 engine Mazda says this [thermal effectiveness] will increase torque at all engine speeds. (Rotary engines are notorious for getting lower torque, especially on the low-finish.) They've also additional Immediate Fuel Injection so you can anticipate the 16x to be substantially more inexpensive in comparison to rotaries of the previous. Dangerous emissions will be drastically decreased as nicely and electrical power must be somewhat improved compared to common multi-position fuel injected rotaries these kinds of as the 13B. This must lean the fuel-air mixture out as well and might improve the rotaries nasty habit of flooding every single time you move her down the street a block. Mazda has carried out amazing points with their light and sporty 1.three Liter 13B - just imagine what they can do with this new Mazda 16x! Greater nevertheless, just imagine what you could do with this new Mazda 16x rotary engine! Regrettably, however, Mazda has nevertheless to announce a creation automobile to carry the 16x. The closest we've gotten is the Mazda Taiki, a far-out prototype created by Mazda underneath the "Nagare"(which is, Japanese for "flow") principle of design and style. So when will we see this new rotary motor in action? Many anticipated this new rotary motor to show up in the 2009 Mazda RX8, but when the cover was pulled off at the North American Global Vehicle Demonstrate in Detroit, we saw absolutely nothing but the Mazda 13B MSP Renesis motor beneath it's glimmering hood. To solution the query your guess is as excellent as mine. The 2010 Mazda RX-eight is a wonderful tiny powerhouse with an economical cost tag. In reality, U.S. Information and Planet Report not too long ago ranked it as 1 of the five most affordable passe-temps autos for your funds. So what about the motor of this elegance? The 2010 Mazda RX-8 has a rotary motor, which the technology is known as RENESIS, and it is offered as either a 232-hp six-speed guide or 212-hp 6-pace activity automated transmission. The RENESIS rotary engine is the following generation of rotary motor that powered the RX-7, retaining the power of the prior rotary design 13B-REW, keeping onto all the power of the RX-7, whilst rising fuel economic system and reducing emissions, while the rotors weigh about 14% a lot less than the ones utilised in the engine of the RX-seven. The RENESIS engine also has its consumption and exhaust ports in the facet housings, which makes it possible for greater warmth dissipation and a more time electrical power stroke. RENESIS also passe-temps a six port induction method, referred to as 6PI. Each rotor employs three of the ports, and each and every also uses a variable consumption timing mechanism, which permits it to maximize compression performance at the two high and lower speeds. In addition, the RENESIS has two exhaust ports for every single rotor. This allows a massive reduction in exhaust resistance. Equally the automated and guide types have a 1.3 liter, two rotor rotary engine, capable of 159 lb-ft of torque at 5500 rpms and are capable of a displacement of 1308 cc and a compression ratio of ten.: one, being confident you are going to get a good deal of power for your dollar. (Comment on this)
5:34 pm	Mazda RX8 Horsepower Controversy mazda rx8 engine To be far more particular: wheel horsepower measured on many chassis dynamometer runs resulted in values effectively beneath the anticipated 17%~twenty% drivetrain parasitic losses. And quarter mile runs of everywhere between .five and one.five seconds off of those produced by publications on allegedly pre-creation automobiles. In connection with the RX8's horsepower rating: the authentic marketing and advertising content from Mazda North The us (MNAO) advertised the 6 pace handbook transmission RX8 at 247hp @ eight,500rpm. Assuming parasitic drivetrain loses in between 17%-twenty% -frequent for contemporary rear wheel generate autos, a stock RX8 ought to evaluate between 205~197 horsepower at the rear wheels (rwhp) -depending on elevation, barometric pressure, temperature and correction variables used. As a substitute, a stock RX8 chassis dyno operate displays benefits ranging anywhere from mid-high ~160 to ~185rwhp. Such readings would represent parasitic drivetrain loses in extra of twenty five%. To say that, it is unacceptable to expertise this kind of a high level of loss through the drivetrain of a "sports car" with a carbon fiber drive shaft -among other items- is an understatement. To further consolidate doubts about the genuine electrical power output of the new Renesis, several proprietors have been unable to reproduce mid-lower 14 second quarter mile passes -as witnessed printed by nicely acknowledged U.S. car magazines. Reduced trap speeds ended up another hint in direction of the clear lack of electrical power output. Shortly following, many debates on on-line fanatic forums and discussion boards turned into heated arguments as to what was leading to this sort of poor "straight line overall performance." Several previous Miata proprietors remembered a prior "snafu" in Mazda's background, when the producer admittedly overstated the horsepower figures of their redesigned Mazda Miata. Following a handful of months, MNAO arrived forward and explained that they had misrepresented the Renesis' energy output. The revised figure was now 238hp @ eight,500rpm however, according to MNAO, this revision did not alter the formerly attained track functionality results. Speculations about the good reasons at the rear of the sudden lack of energy output ended up numerous. Nevertheless, there are at present two universities of believed: The very first one supports the idea that the RX-8's motor conduite unit (ECU), in conjunction with the a lot of "nanny" gadgets -these kinds of as ABS & TCS- do not permit to receive correct readings from a chassis dynamometer. To simplify, when the auto is run on a chassis dyno, only the pushed wheels are turning. The RX-8's ECU would detect an abnormal driving circumstance and retard timing and use other security measures to protect both the "driver" or the "engine" -or equally- from hurt (read: skidding scenario, or a vehicle likely out of the street.) The 2nd 1 believes that MNAO was forced to re-engineer the software package that runs the motor administration even just before the first batch of RX-8's reached U.S. shores, due to approaching Federal emissions laws. I have examine of 1 in certain, which demands catalytic converter lifespan of ~one hundred,000 miles. The enemy amount a single of catalytic converters on any automobile is heat (and warmth is the amount one particular attribute of rotary engine's exhaust gases.) (Comment on this)
5:28 pm	Mazda 16x - The Long term of the Rotary Engine mazda rx8 engine Damaging emissions will be significantly decreased as properly and electricity should be somewhat increased in comparison to widespread multi-level fuel injected rotaries these kinds of as the 13B. This ought to lean the fuel-air mixture out as nicely and may improve the rotaries nasty behavior of flooding every time you transfer her down the street a block. Mazda has completed amazing things with their light and sporty 1.three Liter 13B - just visualize what they can do with this new Mazda 16x! Far better nevertheless, just envision what you could do with this new Mazda 16x rotary motor! However, nonetheless, Mazda has nevertheless to announce a manufacturing automobile to carry the 16x. The closest we've gotten is the Mazda Taiki, a far-out prototype formulated by Mazda underneath the "Nagare"(which is, Japanese for "flow") notion of layout. So when will we see this new rotary engine in action? A lot of anticipated this new rotary motor to show up in the 2009 Mazda RX8, but when the cover was pulled off at the North American Global Vehicle Display in Detroit, we saw nothing at all but the Mazda 13B MSP Renesis engine beneath it's glimmering hood. To solution the problem your guess is as excellent as mine. I was compelled to commence looking at possible replacements for the stock Bridgestone Potenza RE040 (225/45/eighteen) a bit right after hitting 25,000 miles on them. I was tough pressed by financial good reasons to uncover the most affordable probable tires that would provide a comparable or increased tread daily life (higher was greater) and a decent stage of performance on dry surfaces, as properly as wet. I eradicated a number of candidates just before settling for the Sumitomo HTRs, namely: Fuzion ZRi: Funky seeking tread pattern. In other words, all-show-no-go. Yokohama AVS ES100: Rather decent reviews overall, but...heck! ended up more than price range! Dunlop SP Activity FM901: Had mixed feelings about these, and some pointed to another taste of Fuzion 'philosophy.' Nitto NT555: These tires obtained good reviews total from the quarter mile crowd, which didn't really say a lot about the tire capability to turn...so, discarded. Sumitomo HTR Z II: Out of stock! So soon after a temporary dialogue with a TireRack income man, he advised the Sumitomo HTR+. Very first I was hesitant to go for an all-time tire. I thought to myself "All seasons on the eight? No way! But slowly and gradually I recognized that I didn't have considerably of a alternative in the price tag range I was buying in. And so I ended up shelling out my credit card to buy a set of four Sumitomo HTR+ in 245/forty/18. The rolling stock ends up currently being one thing shut to 1% even bigger than the stock Potenzas. In other words, no massive offer. My very first impressions I got the tires set up and the suspension checked and aligned at Christensen Tire, right here in Richardson. In all, the entire install took the a couple hrs. I quickly jumped back in the auto and drove off. The 1st issue I noticed was the engine and exhaust be aware -I am running on a totally stock Mazda RX8. (Comment on this)
5:22 pm	Mazda Creates the Affordable Sports activities Automobile the 2010 RX-eight mazda rx8 engine In addition, the RENESIS has two exhaust ports for each and every rotor. This allows a huge reduction in exhaust resistance. Both the automated and guide types have a one.three liter, 2 rotor rotary engine, capable of 159 lb-ft of torque at 5500 rpms and are able of a displacement of 1308 cc and a compression ratio of 10.: 1, getting positive you'll get a great deal of electricity for your dollar. The fuel economic system is improved from the RX-seven as properly... this automobile averages sixteen mpg in the town and 22-23 on the freeway (23 for the activity automated, 22 for the handbook transmission). In summary, the motor of an RX-8 is a nice piece of machinery, and if you just take care of it, it will consider treatment of you for many years to arrive. Because its launch, the Mazda RX8 has been the issue of shut scrutiny by lovers. The higher stage of consideration is not only due to the car's admirable driving dynamics but, in portion to the early reports of below-than-expected efficiency. To be much more certain: wheel horsepower measured on several chassis dynamometer runs resulted in values well beneath the anticipated 17%~20% drivetrain parasitic losses. And quarter mile runs of anywhere in between .five and 1.5 seconds off of these produced by journals on allegedly pre-creation cars. In link with the RX8's horsepower rating: the unique marketing and advertising content from Mazda North The us (MNAO) advertised the six pace handbook transmission RX8 at 247hp @ eight,500rpm. Assuming parasitic drivetrain loses amongst 17%-twenty% -typical for modern day rear wheel drive vehicles, a stock RX8 must evaluate between 205~197 horsepower at the rear wheels (rwhp) -relying on elevation, barometric strain, temperature and correction elements used. As a substitute, a stock RX8 chassis dyno operate exhibits benefits ranging anyplace from mid-substantial ~160 to ~185rwhp. These kinds of readings would symbolize parasitic drivetrain loses in excessive of twenty five%. To say that, it is unacceptable to expertise such a higher stage of reduction through the drivetrain of a "sports car" with a carbon fiber generate shaft -among other issues- is an understatement. To additional consolidate doubts about the actual energy output of the new Renesis, numerous owners had been unable to reproduce mid-reduced 14 2nd quarter mile passes -as witnessed published by nicely acknowledged U.S. automobile publications. Very low trap speeds were another hint towards the apparent lack of electrical power output. Soon after, many debates on on the web fanatic forums and discussion boards turned into heated arguments as to what was creating such inadequate "straight line functionality." Several former Miata owners remembered a previous "snafu" in Mazda's historical past, when the manufacturer admittedly overstated the horsepower figures of their redesigned Mazda Miata. After a couple of months, MNAO came forward and explained that they had misrepresented the Renesis' energy output. The revised figure was now 238hp @ eight,500rpm even so, according to MNAO, this revision did not alter the earlier achieved monitor performance final results. Speculations about the reasons at the rear of the sudden lack of energy output were numerous. However, there are at present two colleges of believed: (Comment on this)