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Recently updated on October 22, 2018 at 08:01 am
The tuning by a nitrous oxide injection (NOS), known for example by "The Fast And The Furious", Promises a short-term, but extreme extra power. Nitrous oxide kits can even under certain conditions legal to be built in.
What does nitrous oxide do?
Nitrous oxide is nitrous oxide, A molecule contains two nitrogen atoms and one oxygen atom. From 575 ° C the molecule disintegrates, it releases pure oxygen, which strongly promotes the combustion. In contrast to a mere supply of air, which also provides more oxygen, cooled with nitrous oxide, the engine, because the liquid nitrous oxide -88 ° C is cold. In the intake system, the temperature drops by ~ 20 K. On the one hand this reduces the thermal engine load and on the other hand it increases the proportion of oxygen molecules per unit volume. The performance increase due to the better combustion can be up to 55% for a short time, with a little more effort it can be much higher. Of course, more fuel must be injected for this. There are two systems for the technical handling of this: dry and wet, ie dry or wet nitrous oxide injection.
Advantages and disadvantages of nitrous oxide injection
Advantages are the enormous increase in performance, which is used among other things in car racing, but also in the handling of the system. It can be switched on or off at any time by the driver. When the system is switched off, the car drives perfectly normal with its usual fuel consumption. When switching on the laughing gas, the driver turns the main switch on with the gas cylinder turned on and gives full throttle. This closes a circuit via the full throttle switch, the nitrous oxide is supplied, the performance increases extremely. However, it is more of a short pleasure, because the nitrous oxide is not enough for a long time. This may be considered disadvantageous given the effort involved.
Is nitrous oxide injection allowed in Germany?
As part of the StVZO, the legal situation in this country is somewhat complex. There are two approval channels: either the system has an ABE (General operating permit) and can therefore be installed at any time, such facilities are now available. Alternatively, a test engineer must first plant the plant without ABE weight lose, This costs a bit of effort, but it is possible that such a system will be allowed. It is then in the vehicle documents. For the approval, not only the technical (safe) nature of the system plays a role, also other technical equipment must withstand the extreme extra power. This applies above all to the brake system, which in principle has to be stronger than the engine. But also the maximum body loading capacity must not be exceeded. These facts mean that generally only additional services between 30 and 50 PS can be approved.
Of course that had not been the case.
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