guess it should be but one more statement a BME is a short stroke engine a DA is a long stroke. What this means is that the DA has more torke and can swing a larger prop a BME has more rpm..Basically the make them equalk you would need a da to swing a Mejlik 23x8 at 6450 and a bme to swing a 23x8 at 7100

thanks

I didn't realize where this thread was I just did a search for thrust calculator