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88Skier

Looking for OJ/Acme prop test from last year

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88Skier

I've been trying to find the thread from last year with the comparisons of OJ and Acme props on ski boats. I thought Edwin and/or UWSkier had done them. There was also a chart started with different boats, props, rpms, etc. Anyone know where to find them?

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88Skier

That's it. Thanks! It was Martho. I knew there was a name I was forgetting. What prop did you end up buying?

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NorCaliBu
That's it. Thanks! It was Martho. I knew there was a name I was forgetting. What prop did you end up buying?
OJ XMP 13 X 12 3 Blade...Love it!! Thumbup.gif

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88Skier
That's it. Thanks! It was Martho. I knew there was a name I was forgetting. What prop did you end up buying?
OJ XMP 13 X 12 3 Blade...Love it!! Thumbup.gif

What are your rpms, speed. It seems like OJ has a little more pitch or blade surface than the same size Acme.

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NorCaliBu
What are your rpms, speed. It seems like OJ has a little more pitch or blade surface than the same size Acme.
Almost exactly 1 mph for each 100 rpm's. At the top...5000 rpm = 49.8 mph.

I can take specific notice of the rpm's at different skiing speeds if you're interested...it seems I only look at my tach when taking off...while driving I'm using the GPS (no PP). :)

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88Skier

No, that's good, thanks. I'm debating between the 13x12 and 13x12.5. If I bought Acme, I'd go with the 12.625. OJ is doing a demo, so maybe I'll try the 12.5 first. Gotta dig the boat out once the ice is gone and test. I think I'll remove the wedge , too. That's got to make some difference.

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