WOT with the 225 Opti was 54 MPH consistently, turning 54-5600 RPM swinging a 21P Tempest Plus. So I have lost about 10 MPH on WOT. I knew I would lose some speed, but am excited that 45 MPH is within reach and I do think with some motor mount adjustments and maybe some more prop switching I will get better. I am currently running a 21P on the Suzuki as well.
Here is a list of other props, that I tried with the Optimax:
Mirage plus 21p: plugs out on prop
3800 rpm 33 mph
4200 rpm 35-36 mph
WOT 53 at 5600 rpm - not hitting the rev limiter with this one
Tempest Plus 21p:
3800 rpm 35-36 mph
4200 rpm 40-41 mph
Wot - its weird because I had 6 people in my boat and got up to 54 mph at 5200 rpm. But with just my wife and I, we get o 52 mph at 5600 rpms.
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