496 BBC RECOMMENDED PROP

Airboat propeller discussion.
Cmcintosh721
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496 BBC RECOMMENDED PROP

Postby Cmcintosh721 » Tue Nov 28, 2017 1:57 pm

I have a 496 BBC approx. 600hp with a 2.55 gear box. I have a 84 whisper tip ex and just wondering what the best prop selection would be. Trying to see if there is anything better out there.

thanks

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Deano
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Re: 496 BBC RECOMMENDED PROP

Postby Deano » Tue Nov 28, 2017 2:03 pm

First question(s) would be:
How fast do you spin it, and/or at what rpm do you get your 600 hp ?
"The suppression of uncomfortable ideas may be common in religion and politics,
but it is not the path to knowledge; it has no place in the endeavor of science."
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Cmcintosh721
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Re: 496 BBC RECOMMENDED PROP

Postby Cmcintosh721 » Tue Nov 28, 2017 3:17 pm

I want to spin the motor around 5500rpms

Cmcintosh721
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Re: 496 BBC RECOMMENDED PROP

Postby Cmcintosh721 » Tue Nov 28, 2017 8:50 pm

I want dry ground push more then anything. I have a bigger boat I know it will never be a rocket. It runs dry now fine, but there is always more to be had somewhere

SWAMPHUNTER45
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Re: 496 BBC RECOMMENDED PROP

Postby SWAMPHUNTER45 » Tue Nov 28, 2017 8:59 pm

Time for some "S" or Super Wide blades

Cmcintosh721
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Re: 496 BBC RECOMMENDED PROP

Postby Cmcintosh721 » Wed Nov 29, 2017 10:55 am

do the super wides push better then going to the 4 blade ex. those are my 2 options just unsure what would be best. was hoping someone had compared them

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F0zzy2
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Re: 496 BBC RECOMMENDED PROP

Postby F0zzy2 » Thu Nov 30, 2017 2:31 am

I spin 4 superwides at 1900 RPM's set on the 2 mark, it pushes my barge anywhere.
moose.jpg
21740627_10211154929883981_468751006172925388_n.jpg
18X8 Silverdollar- 580 BBC- CH-4 2.67 ratio - 4 84" S Series Blade

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kwanjangnihm
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Re: 496 BBC RECOMMENDED PROP

Postby kwanjangnihm » Thu Nov 30, 2017 4:49 am

awesome hunt/airboat photos F0zzy2 :cheers: :thumbleft: :salute:
" I don't care who you are back in the world, you give away our position one more time, I'll bleed ya, real quiet. Leave ya here. Got that? "

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Deano
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Re: 496 BBC RECOMMENDED PROP

Postby Deano » Thu Nov 30, 2017 7:34 am

x 2

:thumbleft: That is BadAss on both counts. :thumbright:
"The suppression of uncomfortable ideas may be common in religion and politics,
but it is not the path to knowledge; it has no place in the endeavor of science."
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SWAMPHUNTER45
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Re: 496 BBC RECOMMENDED PROP

Postby SWAMPHUNTER45 » Thu Nov 30, 2017 9:11 am

Is that a Skip Olsen build ?

Sure looks like his work....awesome pics

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F0zzy2
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Re: 496 BBC RECOMMENDED PROP

Postby F0zzy2 » Thu Nov 30, 2017 1:31 pm

Yes that is a skip boat with some modifications, if any of you Florida folks would like to trade a a hunt just hit me up. I’d love to ride and hunt in Florida just to see what it’s all about.
18X8 Silverdollar- 580 BBC- CH-4 2.67 ratio - 4 84" S Series Blade

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F0zzy2
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Re: 496 BBC RECOMMENDED PROP

Postby F0zzy2 » Thu Nov 30, 2017 1:31 pm

Yes that is a skip boat with some modifications, if any of you Florida folks would like to trade a a hunt just hit me up. I’d love to ride and hunt in Florida just to see what it’s all about.
18X8 Silverdollar- 580 BBC- CH-4 2.67 ratio - 4 84" S Series Blade

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WhirlWind Propellers
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Re: 496 BBC RECOMMENDED PROP

Postby WhirlWind Propellers » Thu Mar 01, 2018 6:48 pm

We did get Cmcintosh721 taken care of with an upgrade in propeller sizing. I think most of the suggestions given above were right on the money. SA members seem to know their stuff. :usa:

For his BB 496 (500HP to 600 HP) with a 2.55 reduction, I would recommend either the 3-blade Whisper Tip SW in 84" diameter or the 4-blade Whisper Tip EX in standard 79.5" diameter. And for Alaska type airboating (hunting over long distances in remote areas), the 4-blade Whisper Tip SW would have been an option. ( F0zzy2 - Those were some great hunting pics from AK. :thumbleft: :thumbleft: )

Sincerely,
Patti
:proud:

Cmcintosh721
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Re: 496 BBC RECOMMENDED PROP

Postby Cmcintosh721 » Fri Mar 02, 2018 8:18 am

thank you Patti you did an amazing job I love the 4blade EX.


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