different prop but same rpm

[pnut]

i have a 27t and a 25t yamaha prop.can turn the 27 to 5600 and the 25 only goes 5600.speed is a little faster with the 27.should the 25 turn harder as it has less pitch?zx250,motor 3.75 below pad.both props like new.also notice when i press the gas pedal the last 3/4 of an inch it doesn't seem to make any difference.thanks

[21XDC]

The T1 needs to run higher than the M... Or I might say the M needs to run lower than the T1 prop.

[Neilslure]

I have both running them on a 2008 ZX250. I get about 56-5700 of of the 27 and 5900-6000 with the 25. I dont know my prop to pad measurement but know it about 1/8" above where it was from the factory.

[Rich Z]

What boat and motor? The 25T will be good in hot weather and 27T is much better in cold. Seems like you need to go up on a JP to see better results.

[pnut]

thanks for the info.thinking about a hydraulic jack plate soon.i run the 25 in summer and the 27 in winter