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-   -   Do I have the right prop? 33 Fountain lightning (https://www.offshoreonly.com/forums/prop-talk/368674-do-i-have-right-prop-33-fountain-lightning.html)

fcs1965 09-27-2020 08:53 PM

Do I have the right prop? 33 Fountain lightning
 
I have an 08 33 fountain lightning with 496ho's , 1.65:1 ratio and maximus 32x15 5/8, My performance sheet says it came with 33 maximus ran 84 and turned 5050 rpm. I find this hard to believe since with the 32 props on there i have not turned more than 4650 rpm. and run 79mph, both engines are turning same rpm. Any help would be appreciated.

ALL_IN! 09-28-2020 08:41 AM

That's because the performance report was based on the magic waters of the Pamlico River! ;-)

Fountain may have labbed the original props, as well. Call BBlades and tell Brett what your seeing - he can get you a few more RPMs with labbing.


Originally Posted by fcs1965 (Post 4759134)
I have an 08 33 fountain lightning with 496ho's , 1.65:1 ratio and maximus 32x15 5/8, My performance sheet says it came with 33 maximus ran 84 and turned 5050 rpm. I find this hard to believe since with the 32 props on there i have not turned more than 4650 rpm. and run 79mph, both engines are turning same rpm. Any help would be appreciated.


plavutka 09-28-2020 09:04 AM


Originally Posted by fcs1965 (Post 4759134)
1.65:1 ratio and maximus 32x15 5/8, 32 props on there i have not turned more than 4650 rpm. and run 79mph.

Only 7,7% slip?

fcs1965 09-28-2020 09:45 AM

is that good or bad?

fcs1965 09-28-2020 10:03 AM

i think i have the original props

ALL_IN! 09-28-2020 05:04 PM

Well, if current props are 32's, and you have the original 33's - then put the 33's back on and report back.


Originally Posted by fcs1965 (Post 4759194)
i think i have the original props


fcs1965 09-28-2020 07:56 PM

i think the originals are 32's even though th sheet says it had 33's. 33's would turn even less rpm


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