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38 Eliminator Eagle twin 572's at 750hp what pitch Prop?

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38 Eliminator Eagle twin 572's at 750hp what pitch Prop?

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Old 09-02-2010 | 07:50 PM
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Default 38 Eliminator Eagle twin 572's at 750hp what pitch Prop?

38 Eliminator Eagle twin 572's at 750hp what pitch Prop? it had stock 454's 330hp before with 22's?
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Old 09-03-2010 | 10:13 AM
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what gear ratio are your drives?what rpm are you wanting to turn?
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Old 09-03-2010 | 10:42 AM
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I would guess if you were running 22's with 454/330hp the gear ratio is 1.5. A good place to start would be 34 or 36's. Did you upgrade the drives ? I would think that your going to have trouble keeping B1's or XR's alive with 750hp.
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Old 09-06-2010 | 09:23 PM
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I think you might need to change your drive gear ratio if you have 1.50's. I would try some 36 Bravo 1's to start.
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Old 09-13-2010 | 05:23 PM
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Thanks for the replies guys, i forgot to check back for updates! ok i found my dyno sheet and attached a pic... i guess im a little bit of a story teller 725HP not 750!!
i didnt run it what i consider very hard... but it did hit the limiter at 6250 when i leaned on it. i dont have a speedo so i dont know how fast i was going? they are std brovo 1's with 1.5 ratio. i did notice that the little gearbox? that turns the fresh water pump and activates the fuel pumps was puking oil out when run at that RPM?


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Old 09-13-2010 | 07:19 PM
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Prop at 5800.
Let me know if you want some test propellers.

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Old 09-13-2010 | 07:36 PM
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What pitch would you suggest for that rpm? i would like to run a little less rpm if possible?
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Old 09-13-2010 | 07:55 PM
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Don't know.
The boat needs to tell you.
You need to go up in pitch to find a sweeter spot or, call me with a exact wet weight and I'll tell you the exact pitch you need to run 5600. But, I need the 6250 R speed as well in GPS form.

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