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-   -   33zx prop?? plz (https://www.offshoreonly.com/forums/donzi/294686-33zx-prop-plz.html)

q8donzi 04-16-2013 08:30 AM

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

1989mach1 04-16-2013 10:02 AM

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.

prostock3 04-17-2013 10:42 AM

I have a 38zx and have 500efi, with 28p 4 blade and get 72mph at 4800rpm

FIXX 04-17-2013 07:04 PM

fixx
 

Originally Posted by q8donzi (Post 3906631)
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..?

Baja_342 04-18-2013 05:56 AM


Originally Posted by 1989mach1 (Post 3906686)
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.

1989mach1 04-18-2013 05:40 PM

i might be worng but im prity shure that is what i was told by brett at bblades alittle whyel back

q8donzi 04-18-2013 07:51 PM


Originally Posted by FIXX (Post 3907744)
525 efi or 525 SC..?


525efi mercury racing blue engine

1989mach1 04-18-2013 07:59 PM

what was your rpm at wot?

q8donzi 04-22-2013 01:07 PM


Originally Posted by 1989mach1 (Post 3908474)
what was your rpm at wot?

5000 rpm trim 3 speed78
5200 rpm trim 5 speed 77

donzi33zx 04-24-2013 07:42 PM

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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