prop efficiency

[Bill Kemp]

if you run a over hub prop like a chopper on a motor that as not had the exhuast relieved how is this goning to effect the efficiency of the prop at higher speeds

 

[John Richied]

My guess is not at all…

Relieved exhaust really just sounds cool as hell, and I think that’s about it.

I had a chance to open up and relieve the exhaust in my 20” midsection when I had the powerhead off, but I didn’t do it.