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33zx prop?? plz

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33zx prop?? plz

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Old 04-16-2013, 08:30 AM
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Default 33zx prop?? plz

Hi
I have donzi 33zx 2004
525x2 racing
30 bravo 1 propeller
Top speed 78mph

I*read*E-site*there are boats*bigger than*the*size*of*my*boat,such*as*engine*type*and*s trength*and*speed*more*and*Ithink*due*to*the*size* of*the*propeller What*size*suitable for*myboat*propeller
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Old 04-16-2013, 10:02 AM
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i have the 500efi motors and am running 28 4 blades and last year i got 82 out of it on gps. so u should be faster then me alittle bit. u might be over proped. i was thinking about going up to 30's and was told that i would be alittle better out the hole and a little better cruse speed but might lose topend. if u r looking to up your top end mabe try some 28's and u might gain some then if u still want more have them labed. that is my next step when i have the extra cash.
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Old 04-17-2013, 10:42 AM
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I have a 38zx and have 500efi, with 28p 4 blade and get 72mph at 4800rpm
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Old 04-17-2013, 07:04 PM
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Default fixx

Originally Posted by q8donzi
Hi
I have donzi 33zx 2004
525x2 racing
30 bravo 1 propeller
Top speed 78mph

I*read*E-site*there are boats*bigger than*the*size*of*my*boat,such*as*engine*type*and*s trength*and*speed*more*and*Ithink*due*to*the*size* of*the*propeller What*size*suitable for*myboat*propeller
525 efi or 525 SC..?
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Old 04-18-2013, 05:56 AM
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Originally Posted by 1989mach1
i have the 500efi motors and am running 28 4 blades and last year i got 82 out ofbe it on gps. so u should be faster then me alittle bit. u might be over proped. i was thinking about going up to 30's and was told that i would be alittle better out the hole and a little better cruse speed but might lose topend. if u r looking to up your top end mabe try some 28's and u might gain some then if u still want more have them labed. that is my next step when i have the extra cash.
I think you have that a little backwards. If you can turn the 30s they should give you more top end, but slower to plane.
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Old 04-18-2013, 05:40 PM
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i might be worng but im prity shure that is what i was told by brett at bblades alittle whyel back
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Old 04-18-2013, 07:51 PM
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Originally Posted by FIXX
525 efi or 525 SC..?

525efi mercury racing blue engine
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Old 04-18-2013, 07:59 PM
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what was your rpm at wot?
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Old 04-22-2013, 01:07 PM
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Originally Posted by 1989mach1
what was your rpm at wot?
5000 rpm trim 3 speed78
5200 rpm trim 5 speed 77
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Old 04-24-2013, 07:42 PM
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Mach, I also am running 28 4 blades with 500 efi on my 33zx. I'd love to see 82! I'll know next weekend
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