Nitrous oxide is a powerful oxidizer. What this suggests is that if you pump it into an engine together with further gasoline, you can make a lot more energy at the push of a button. Often referred to as “NAWSS” by the more quickly and furiouser among the us, it can be also a wonderful way to blow an engine in a spectacular vogue. The team at Deutsche Auto Parts have just dropped a movie showing how effortless it is to set up a nitrous oxide program, as perfectly as what can go improper if you are a little overzealous with the software.
The easiest way to go is to use what’s referred to as a wet system. A wet technique sprays both nitrous oxide and the expected extra gas into the motor jointly. This is generally performed at the push of a button, which activates a solenoid valve allowing for the fuel and nitrous to circulation. Conversely, a dry program sprays only nitrous oxide into the engine, leaving it up to the engine management procedure to supply the extra gasoline by means of the normal fuel injectors. The latter approach requires a custom made tune if not a complete standalone Ecu to put into action, and hence most everyday nitrous buyers go with the wet process.
The Deutsche Auto Elements group alongside with Charles, aka HumbleMechanic, have finished fantastic jobs before, and arrived jointly once more for this build. They established about fitting a soaked procedure to their 2007 Jetta GLI equipped with the 2. liter turbo FSI engine. Acquired with a broken timing belt for just $1200, it is a venture auto that the crew are building for a drag racing showdown with fellow YouTubers Gears and Gasoline. The automobile was affordable and a minor worse for wear, therefore generating it a excellent applicant for some reckless nitrous action.
The set up is reasonably straightforward. A Nitrous Express kit was picked, with the impressively big nitrous oxide bottle installed in the boot with the integrated brackets for fantastic visual influence. The nitrous line is snaked below the automobile heading up to the engine bay at the entrance. Securing a fuel supply for the wet shot nozzle is simple plenty of, as the FSI engine’s gas pump has a Schrader valve for checking gasoline tension that can very easily be repurposed. Normally, it would be a straightforward job of setting up a tee on an existing gasoline line. From there, it is a straightforward make a difference of hooking up the nitrous and gasoline feeds up to the nozzle, which is mounted in a hole drilled in the consumption piping just in advance of the throttle overall body.
It can be at the dyno the place all hell breaks loose. The staff picked a “100 shot” set up for the kit, which means the fuel and nitrous jets chosen are intended to insert 100 horsepower when the process is brought on. Functioning usually, the motor developed 253 horsepower and 303 lb-ft of torque on the dyno. When the nitrous was induced, the engine produced 318 horsepower and 436 lb-ft of torque… for about two seconds, ahead of the engine was entirely destroyed.
With bits of piston and other motor internals littering the ground of the dyno cell, it truly is a fantastic cautionary tale of what can go mistaken. In the video, Street Outlaws star John Andrade Jr. weighs in on the havoc, suggesting it was probable that the 100 shot of nitrous was much too significantly for the motor, particularly presented that it was already turbocharged. The blend of compelled induction and nitrous oxide injection can lead to substantial cylinder pressures which can confirm too substantially for an usually largely inventory motor. On top of that, added warmth from the more intensive combustion can bring about the piston rings to grow. When the finishes of the piston rings contact, they can jam a piston in a cylinder or snap elements of a piston off, quickly grenading the engine.