Av8r RC
50cc
Which airframe is this motor in? Is it a round cowl like a Yak or Sukhoi? If so, one option to help with the cowl pressure issue is to baffle or partially block the cowl opening so not as much air can get in. I had to do this on my Su-26.
3DHS 89 Slick :beatingheart:
You can see the vented panel in this pic