Audi R8 X Kawasaki Ninja ZX10R X Suzuki GSXR1000
Since we talked about European cars this year, we made frequent references to the DIN standard power rating We wanted to be sure everyone is clear on what that means.
DIN is the German standard Industrienorm abbreviation of the German industry, a standard of the German National Standards Institute, now called Deutsches Institut für Normung DIN and speed, among others, the agency sets standards on how the power and torque of car engines must be measured Deutsche Industrienorm 70020.
As you can imagine, the DIN 70020 standards are specific and strict contrast to gross SAE standards used in the United States and Britain for many years, DIN requires a measured power with standard outlet, and exhaust systems Accessories up to DIN horsepower, therefore, are similar to the system of modern SAE net ratings, although they are usually reported in metric horsepower Pferdestärke sometimes called the German word for horse, and shortens PS, rather than power mechanical mechanical power is about 745 watts 7, then a metric of power is about 735 watts 5; Therefore, 1 SP equals 0,986 horses for this reason and because DIN horsepower are calculated with the on condition of engine installed, they are still lower raw scores advanced engine speeds for DIN power and torque are often lower thus reflecting the effects quiet, air cleaners and accessories have on the engine power curve.
Until the early 1970s it was not uncommon for cars sold in the world to have two power levels of a DIN, a largely raw concession sellers a Porsche 356 Super 90 engine, for example, was ranked 90 DIN hp but 102 hp SAE gross add to the fun was the fact that, as we have previously discussed SAE gross sometimes wore very little relation to actual production This does not necessarily mean that American motors or British were more powerful than their European counterparts, but simply that their assessments were understood differently.
So before we write to complain that we have maligned your favorite car saying he had less power than advertising, please consider the source, and if that source was quoted SAE gross, net or SAE DIN numbers.
I got into a big fight with a guy so, whether online for cars in the UK are measured at the wheels or the crank.
I say crank, but said the companies announced bhp notes were the wheels.
All reviews I've seen is for the engine to crank with various conditions, so raw test net, or DIN I d prefer the figures were at the wheels, because to keep manufacturers honest about the available power after drivetrain losses.
I've never seen any manufacturer official list wheel horses; it is always at the wheel There were erroneous reports in 1971-1972, when NetRatings came into use, the odds were clear to the drive wheels, but it is not okay.
I think most of the time it comes down to the fact that the numbers would be much less impressive it would illustrate the comparative effectiveness of different transmissions, which is something that I suspect many manufacturers prefer to avoid if they could.
Although it seems logical in the UK or the UK after reading a few other items, there is a way that doesn t I've ever seen SAE used in British cars, as far as I know, the United Kingdom DIN normally used to measure torque of the power units were generally lb ft respectively HP HP I understood to be the same as or PS bhp, but am not pro this these could be converted by calculation in metric units nm kW, but the difference with SAE t wasn simply units of Japanese cars didn t use DIN before 2000 their HP data was generally higher than British European cars Maybe that was using the old SAE, but I'm not sure.
There are three distinct points by the British practice units vs Japanese method and practice of all, the UK has adopted DIN notes after the accession to the EEC in 1972. Before that, you had a weird mixture of crude SAE net rarely clear, but probably recalculated gross SAE with a provision for accessories and muffler exhaust muffler, and Notes DIN same in 1975, some British cars still quoted market SAE gross weird, because even the United States had abandoned then, but the late 70s, DIN methodology prevailed, it depends a bit when you're talking about.
Moreover, the different rating standards SAE, DIN, ISO, CUNA, JIS are separate units concerned Standards describe how the tests should be performed, including what accessories are to be fixed and the parameters for the calculation A important is a correction factor for the weather; Each standard contains correction factors for the power and torque air temperature and pressure, but they differ somewhat Once you have calculated according to a particular standard, you can convert imperial units to metric or vice versa, but not really didnt change the standard conversion is simple arithmetic, such as using a calculator to convert your Celsius thermometer readings in Fahrenheit didnt change the way your thermometer.
That said, the units are a big headache, largely because the mechanical power metric and power are almost, but not quite the same metric power is about 0 9863 mechanical horsepower Thus, it is often pain of knowing that a source speaking British publications are terrible in this regard because they often insist on using bhp to describe both units Some publishers also take upon themselves to try to convert each other, not always correctly and in general without mentioning whether they've done, you might see some sources speak of a car with 150 hp DIN 150 mechanical horsepower of 150 hp and others describe as some 148 bhp wrongly describe as 146 bhp, which is what happens if you accidentally convert the units twice, or 152 bhp, which is what happens if you convert in the wrong direction.
Third, we have different regional practices generally modern exporters include the production of a standard is in place on the local market Japanese automakers use JIS, which remained gross production until the mid 80s, then began a gradual and erratic JIS net change now generally obligingly added with values in kW and PS However, the United Kingdom and other EEC countries, Japanese automakers have used dimensions from DIN at least 1980, even if you still have occasionally confusion of the unit mentioned above, I'm not motivated to read the EU regulations to see if the ratings are DIN approval requirement type, but my guess would be in the US California law explicitly requires automakers advertising as SAE NetRatings do n American cars -MARKET now do everything.
I hope this helps is a subject that often fall into the category of unnecessary confusion.
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