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Author Topic:   4 Blade Prop
Ferdinando posted 04-04-2003 11:49 PM ET (US)   Profile for Ferdinando   Send Email to Ferdinando  
I have a Montauk with a 90hp Johnson. I have a SS 3 bladed prop, would it be worth
putting on a 4 bladed prop, would the performance be worth the investment.

Thks, Fred..........

OutrageMan posted 04-05-2003 12:05 AM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
It all depends on what kind of performance you are looking for. Do you want better hole shot and don't mind losing a bit of top end? Then I would say yes. You need to ask what areas you want a performace boost in. What do you expect a 4 blade prop to do for you that you aren't getting now?


Louie Kokinis posted 04-05-2003 03:24 PM ET (US)     Profile for Louie Kokinis    

I'd also recommend trying the 5 blade 'high five' which is available for the 90.

Low to mid range performance is awesome with the 4, so I would think the 5 would be better. Most shops will let you try a few props before purchasing, so it shouldn’t cost you anything but some time.

I'm guessing, but it would be nice to see if you notice a difference.

Sal DiMercurio posted 04-05-2003 07:04 PM ET (US)     Profile for Sal DiMercurio  Send Email to Sal DiMercurio     
All a 4 blade is going to do is get you out of the hole faster & maybe keep you on plane at a lower speed, but not always.
4 & 5 blade props are mainly used by bass fishermen who fish skinny water & need to get on plane right now for chance of hitting bottom.
To my knowlege, they do not improve anything above 1/2 throttle.
When you see race boats, they run 2 blade props.
Louie Kokinis posted 04-05-2003 08:21 PM ET (US)     Profile for Louie Kokinis    

I agree.

But, in my case (which is probably the same as most here) the focus is a better grip and lower planning speed in swells or rough water vs. top end. I agree that the difference in the higher rpm range is not there, but in the low to mid range it is noticeably better.

I guess it depends on the application. If top end is the objective a cleaver is probably best.


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