Hi, I was wondering what prop sizes to use for 3D and for IMAC on a BME 102 EVO. Also If anybody has any recomended brands i'm open to that to, Thanks

Try the Biela 27-10 for Pattern style flying, and the Menz, BME, or NX 26-10's for 3D. The wooden 26-10's will rev quicker, making 3D easier, and the Biela is a great "Pattern" style prop because it's loading it more consistent. The Mejzlik 26-10 is also a good choice for an all-around prop, but rev's higher than the Biela so it will be noisier when flying, and does not accelerate/brake as well as the wider wooden props in the 26" range.

I am using a MSC 26x10.
I am getting around 5750 rpm, but I have my engine really rich.
I am at 25lbs, and can go vertical at 3/4 throttle.

I heard from more than a few pilots that the best performing prop for the 102 EVO is the Menz-S 27x10...about 6200 rpm. This was on planes weighing 23 lbs and 102" span. They've checked out a lot of other sizes and brands, but nothing has proven better than the Menz.

Thanks Diablo,
I think I will try a different propeller.