Another Hyundai i30N video: This time we are installing our Stage-3 Upgrade Turbo for the Hyundai i30N and i30N Performance and have over 350 hp in series optics and standard response.
We find out that the series turbocharger of the Hyundai i30N runs out of steam due to the small compressor wheel in the upper rpm range. A maximum of 315 hp are possible according to our experience, because the turbocharger can not deliver more air mass. For this reason, we have decided to make an upgrade turbocharger with a modified compressor wheel. We do not want to make any big changes to the turbocharger as we think the Hyundai i30N and i30 N Performance live off the responsiveness.
Our first attempt is a modified compressor wheel and standard exhaust wheel. In addition, we install a way to determine the exhaust back pressure on the dyno. Why is that important? On the one hand, we pack power into the crankshaft in the form of boost pressure and gasoline. By burning we generate power, which, however, must be executed again. By pushing out the exhaust gases the crankshaft power is taken again. This relationship between performance that gets packed in and performance that needs to be pushed out has to be in a healthy relationship. If the ratio is shifted, you push only hot air through the engine without significant performance gains.
Good example: Opel Z20LET. The turbocharger has a very small bend and the cross sections are not optimal. This ensures that you can only drive a certain boost pressure. Exaggerating it with the boost pressure, then you get more air mass, which can not be properly dissipated. Air mass is no indication of performance. At some point you get to the point where you do not necessarily get more power with a bit more boost, as the exhaust back pressure increases exponentially.
An example: We pack 0.2 bar more boost in the engine. For example, we pack 50 hp more into the crankshaft and unfortunately take power from the crankshaft by pushing the piston upwards. At some point on the exhaust side is no longer through and we have +/- 0 hp more power, but only thermal load on the engine.
You can drive depending on the circumstances better less boost and thereby drive less residual gas in the cylinder and instead play with the ignition. The result: Less thermal load and more power through ignition despite less boost pressure.
We also show our turbocharger in detail: We have installed a compressor wheel that fits well over the contour, which is 5mm larger than the standard wheel. The gap should be about 3 / 10mm for upgrade turbochargers, otherwise the turbocharger will run inefficiently. We pay attention to these details, making the turbocharger for the Hyundai i30N the perfect choice. Whether turbocharger sensible responds, we can see on the test. Upgrade turbos, which are poorly built, have poor responsiveness and poor performance in the upper engine speed range.
Finally, a summary. The final tune makes 1.5 bar boost in the middle range. That's 351 hp and 498 Nm of torque. In the upper area towards the end of the revolution, we are satisfied with 1.25 bar boost pressure. We pay close attention to the exhaust backpressure and this is with almost 2.4 bar in the frame. In the previous measurements we see that 10-12 HP are missing in the upper range. But you can buy this with enormous thermal loads. Therefore, we decide not to change the software again.
What does our Hyundai i30N Performance Turbo upgrade from 100-200 kph? We put the Dragy Box in the i30 N and were able to measure a 12.2 seconds of 100-200 kph.
We are very satisfied with the result. 350 hp and 500 Nm is neat for a Hyundai i30N performance! If you want more power, you can also have a turbocharger upgrade with a larger exhaust gas side. Since this vehicle lives off the response, we want to get this too.
#i30N #Chiptuning #UpgradeTurbo
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12 сен 2024