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Old 06-08-2010, 07:28 PM
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Originally Posted by andychb
Thanks for the input!

Will the slip% go up or down based on prop pitch?

Do you think labbing the 28 back would get me on plane faster?

The 30 when I ran it seemed to hook up better than the 28, although conditions were worse.
Don't pay attention to slip too much, just speed & handling. Generally, the bigger the prop, the harder to plane. My 32p won't stay on plane till 25-30 mph, 28p planes @ 20-25 mph- tabs up, but the 32 is about +10 mph cruise @ 3500-4000 over the 28. I like being able to pass boats just cruising then stab some boost as I blow by!
Labbed props don't make much hole shot difference that I'm aware of.
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Old 06-09-2010, 11:36 AM
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Yea I've got a labbed 30 to test too. I am going to run the 30 and the 28 this weekend back to back and then take that data to my prop guy. He is telling me my speedo is about +two mph off.
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Old 06-09-2010, 12:02 PM
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I would get an accurate GPS speedo asap!

When doing prop testing, I usually use both my lavorsi in-dash GPS speedo, my Garmin chart plotter GPS speedo, and a handheld GPS speedo... just to make sure I am getting accurate data.

I also use both the analog tach, and and the digital Smartcraft tach... to make sure my rpm's are accurate.

Accurate data produces accurate numbers that can usually be improved upon.

If you have inconsistant numbers... it is hard to tell what is real... and what is fiction.

Fiction is hard to improve upon.

Chris
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Old 06-09-2010, 11:39 PM
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Originally Posted by andychb
Yea I've got a labbed 30 to test too. I am going to run the 30 and the 28 this weekend back to back and then take that data to my prop guy. He is telling me my speedo is about +two mph off.
If that 30 doesn't work & you need a 28, I'd love to work a trade deal.
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