Almost on time for the start of the season, I drove to the car after work today to get it out of hibernation. The plan was to just check everything (oil, air pressure, wheel bolts) and then drive a few metres to see if everything works and holds. But it turned out to be a 60km trip at the end of the day. Beforehand, I connected the laptop and, surprisingly, I also had measuring instruments at hand.
So I put the toolbox in the boot and went out onto the highway ... Unfortunately, I had a lot of problems with the measuring equipment until I realised that I should probably deactivate the Bluetooth on my smartphone because my GPS mouse kept disconnecting from my measuring phone.
Therefore only one really usable measurement, but in the end it was enough for now ...
Last year's measurement, which resulted in the 8.5s 100-200, was at 15°C outside temperature, about 40l fuel with the Apexi air filter.
Today it was about 7°C, the box was still completely full of fuel and I had a toolbox in the boot and it now has the OEM air filter box with printed intake snorkel with Pipercross filter mat fitted:
In 3rd gear, from 80-150, I had exactly the same time. After that I didn't shift as well as on the 8.5 run, but it was still an 8.7s.
Here the log with Apexi air filter:
And here the log with air filter box:
The time doesn't match 1:1 with the GPS measurement, because we would have to readjust the speed recording again, but it's all about the difference between the two measurements.
The intake air has also been very stable, although I don't want to form a final opinion about that yet. I think I might move the sensor again to the same place as with the Apexi air filter, so that it sits directly in the air flow again. Now it sits in a corner not surrounded by airflow, where the resonance body normally sits. :/
Anyway, I'm very happy with the first result on this.
The car also ran really flawlessly otherwise. Let's see how it goes now.
A few more pictures - I think I have to try a bit harder again...
Best Regards, ludi