Prop differences?

[Wmoody]

Hey guys, I screwed up on buying a new prop last week and instead of buying a 14 1/2 x 25 RX3, I bought a 15 1/2 x 25 RX3. What difference with a inch bigger in diameter do you think it will make. I usually run a 14 1/2 x 26 but wanted to drop down in pitch to get my rpms up a little. May have a new prop for sale soon.

[21XDC]

The bigger HP and bigger block motors like more diameter if they are vented properly for holeshot... Smaller HP/Block motors like smaller diameters. This is just a general rule of thumb... Not always.