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Author Topic:   Dauntless 160 / 115 EFI - 4 Blade Prop
millerbr posted 06-29-2005 07:46 AM ET (US)   Profile for millerbr   Send Email to millerbr  
Is anyone using a 4 blade stainless prop on a 160 Dauntless with the 115 4-stroke Merc? I have been testing a 4 blade composite which I like, but would like to get a stainless one. Any recommendations?
Marlin posted 06-29-2005 10:52 AM ET (US)     Profile for Marlin  Send Email to Marlin     
As far as I know, there are no 4-blade (or 5-blade) props available for the 115 4-stroke that are suitable for the 160 Dauntless, due to their high pitch. All the 4-blade props I've found start at 20" or higher pitch in the intermediate gearcase size. That includes the High Five, Trophy Plus, and Stiletto Pro-4. Other 4-blades like the Michigan Wheel Ballistic and the other Stilettos are not available in this gearcase size.

I can spin my 16" Vengeance up to the 6200 RPM maximum, but the holeshot isn't spectacular. It would be interesting to try a 20" High Five, but I doubt I'd be happy with the performance. A 17" or 18" 4-blade or 5-blade would be great, but it seems there's no such thing in the 4 1/2" gearcase size.

Probably a 17" Rapture is the way to go for this boat/motor combination. I don't recall ever reading a report from anyone with this configuration.


Whalerider posted 06-29-2005 12:57 PM ET (US)     Profile for Whalerider  Send Email to Whalerider     
Check out Power Tech props.

I have used them on my last two flats boats and currently have one on my Nantucket and my Actioncraft. Powertech props are THE prop of choice for flats fisherman. They have several 4 blade props that should work.


millerbr posted 06-29-2005 03:53 PM ET (US)     Profile for millerbr  Send Email to millerbr     
Thank you for the replies. It does seem that PowerTech has a prop that should work. In their "M135 - Accelerator Series (Holeshot & Handling)" they have a "4 blade, 13.25 inches in diameter, 15 pitch, with cup" which I think might work with my setup. Am I correct in thinking that I should move to a 15 pitch 4-blade from my 16 pitch 3-blade?

LHG posted 06-29-2005 07:08 PM ET (US)     Profile for LHG    
Mercury makes the 4 bladed Trophy Plus, a hot bass/flats boat prop, in both 17" and 19" pitch. I have no idea if one would be appropriate for a Dauntless. They need to be run about 2" high for proper operation.
Whalerider posted 06-29-2005 07:37 PM ET (US)     Profile for Whalerider  Send Email to Whalerider     

Call up Power Tech and tell them what you want to accomplish. They are very happy to help you even if you dont buy the prop from them. They will also tweek any Power Tech prop up or down in pitch or cup after you try it too get it just right. I have had most of my PT props adjusted slightly so they were what I wanted. Nice prople and fast service.


Marlin posted 06-30-2005 01:18 PM ET (US)     Profile for Marlin  Send Email to Marlin     
Larry, I stand corrected. The Trophy Plus is indeed available in 17" pitch for this gearcase, I must have misread my chart the first time. I don't generally think of the Dauntless in the "bass and flats boat" category, but that prop might be a good solution, especially since the vents will help the engine wind up fast coming out of the hole.


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