ok had a read through, thank you fort an excellent post.380 CFM is a lot, but 59 dB is a lot too .
See this article for more information: https://www.gtplanet.net/forum/thre...lator-for-assetto-corsa.354766/#post-11858752
ok i got it all sorted now. my only question is in regards to fan speed. ypu seem to be the only person who has tested multiple and published reults.I tried Simhub two years ago, could not get it to run properly. But things may have changed. I'm using SimFeedback since then. For SimFeedback a different PWM pin on the Arduino needs to be used, the rest remains the same as mentioned in the article.