Like Tree0Likes

4 Blade prop testing

Reply
Old 03-29-2003, 02:18 PM
  #1
Platinum Member
Platinum Member
Thread Starter
 
Viper31's Avatar
 
Join Date: Sep 2002
Location: Millersville,MD
Posts: 380
Default 4 Blade prop testing

Fellow board members, I tried this post on the Scarab forum already with no responses, figured I might get a better response here.

Would like to know if there are any fellow Scarab 31 owners on the board who have tried 4 blade props on their rigs. Currently switching to XZ drives so I have to get new props anyway. Was running old 23" solid hub Mirages. Drives seem to be pretty deep to me so I'm thinking 4 blades might create too much stern lift.
Viper31 is offline  
Reply With Quote
Old 03-29-2003, 08:13 PM
  #2
Hudson
Guest
 
Posts: n/a
Default

My neighbor's 33' Scarab has a set of 26 pitch Bravo One four blade props. His boat came with them and I haven't heard him complain about the props.
 
Reply With Quote
Old 03-30-2003, 10:34 PM
  #3
Registered
 
Join Date: Feb 2001
Location: EGG HARBOR TOWNSHIP, NJ
My Boats: 2004 PANTERA SURVIVOR
Posts: 513
Default

i ran the herbot, hogs breath boat for a while. it seemed to like hydromotive four blades really nicley. make sure they are turned out. you will have better control.

Treadwell
Treadwellmotorsports is offline  
Reply With Quote
Old 03-31-2003, 10:37 AM
  #4
Platinum Member
Platinum Member
 
Join Date: Dec 2002
Location: Dallas, TX
My Boats: 1987 Scarab Panther
Posts: 2,096
Default Four Blades

I have 30 Scarab. My experience has been that at the same x-dimension, the 4-blades will give you better mid range speed and hole shot but reduced top end. To get the best of everything, I suggest you consider raising the x-dimension by using the Merc Sportmaster or IMCO 2" shorter lower units with the four blades and all your statistics should improve.
I set my base line up so that I struggled to get on plane with Mirage 3-blades and the IMCO lower units. From that point, I raised my drives a total of 3" ( 1" at a time ). The boat got on plane easily at + 2" in x-dimension with the Bravo 1's. At +2" in x-dimension I added 4 mph turning the props out, and 6 mph turning them in. The boat is significantly more stable with the Bravo 1's vs. the Mirages. If your budget allows, I would go +3" in " x " and use spacers to come back down if you don't like the results.
BenPerfected is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Inspector
Prop Talk
1
07-09-2007 07:50 AM
Rebel_Heart
Prop Talk
16
03-23-2006 01:29 PM
CA_Southpaw
American Offshore
13
11-06-2005 07:18 PM
CA_Southpaw
Prop Talk
8
10-22-2005 07:19 AM
NetGain
General Q & A
19
06-29-2004 08:32 PM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 04:20 AM.


Copyright 2011 OffShoreOnly. All rights reserved.