Prop size

B

bullbat

Petty Officer 2nd Class
Joined
Mar 10, 2009
Messages
152
im running a 15 ft astro bass boat with a 77 1150 merc curently a 19 pitch alum prop, i think my max wot rpm is rated at 5300, im curently running 5300 without trimming and i get up to around 5800 trimmed, what prop size do i need to get into my rpm range without losing top end and still have a good holeshot for pulling skiers.
 
bowman316

bowman316

Lieutenant Commander
Joined
Oct 21, 2008
Messages
1,822
Re: Prop size

have you pulled skiers with that current set up?

If anything you should go up in pitch a little, maybe 21.

But idk how much hole shot you would have, porbally enough thou.
 
B

bullbat

Petty Officer 2nd Class
Joined
Mar 10, 2009
Messages
152
Re: Prop size

havent pulled any with this prop had a 17 pitch ss on there and was over revving with it to but i spun the hub it is and just stuck this 19 pitch alum for the time bein til i go get me a new ss prop but had no prop pulling up 3 ppl wit the 17 ss
 
bowman316

bowman316

Lieutenant Commander
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Oct 21, 2008
Messages
1,822
Re: Prop size

I don't think SS props are worth the extra money, and I would say that a 17 is def. too little pitch.

I would stick with a 19. Aluminum.
 
B

bullbat

Petty Officer 2nd Class
Joined
Mar 10, 2009
Messages
152
Re: Prop size

yea but id rather have a ss, i do alot of river ridin and around here there is alot of stumps and floating logs, etc.
 
bowman316

bowman316

Lieutenant Commander
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Oct 21, 2008
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1,822
Re: Prop size

you ever chip a big chunk off a SS prop?

I have bent off about a 1 inch wide chunk off of one of my props, but it still runs ok.

Hit a rock with my prop, going in full reverse to try to not hit a rock in front of me.
 
bowman316

bowman316

Lieutenant Commander
Joined
Oct 21, 2008
Messages
1,822
Re: Prop size

Yea, I went about 200 feet further up river than she wanted to go.

But the prop still works fine, it doesn't even shake the engine. The tip just broke off of one fin.
 
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