Notices
General Boating Discussion

30's or 32's

Thread Tools
 
Old 01-10-2012 | 08:13 AM
  #1  
Thread Starter
Registered
25 Year Member
 
Joined: Nov 2000
Posts: 1,518
Likes: 21
From: PA USA
Default 30's or 32's

Hey guys wanted to get some opinions!!

I have twin 553's naturally aspired engines currently running 30's @ 5700-5800rpm. I was thinking of running 32's to get better cruise speed and top end with lower rpms @5200rpm the differenece in hp is around 30hp less @ 5200rpm.
baja27 is offline  
Reply
Old 01-10-2012 | 08:23 AM
  #2  
Registered
 
Joined: Apr 2009
Posts: 1,852
Likes: 1
From: Denmark and hopefully some place nice
Default

Originally Posted by baja27
Hey guys wanted to get some opinions!!

I have twin 553's naturally aspired engines currently running 30's @ 5700-5800rpm. I was thinking of running 32's to get better cruise speed and top end with lower rpms @5200rpm the differenece in hp is around 30hp less @ 5200rpm.
Are you running 4 or 5 blade? If 4 blade, you should give 5 blades a try. Something like the Maximus. Post this in the Prop section and see what Bblades have to say.
A.O. Razor is offline  
Reply
Old 01-10-2012 | 08:34 AM
  #3  
Thread Starter
Registered
25 Year Member
 
Joined: Nov 2000
Posts: 1,518
Likes: 21
From: PA USA
Default

They are 4 blades, don't want to run 5 blades, makes for more drive issues
baja27 is offline  
Reply
Old 01-10-2012 | 01:57 PM
  #4  
Platinum Member
15 Year Member
Platinum Member
 
Joined: Sep 2010
Posts: 1,225
Likes: 209
From: Northern Jersey
Default

Not sure if this helps, but I was running 28p 4 blade hydos on my cig running 81 at 5300 with 500efis. I went to labbed 31p 4blade bravos with some cup and run same top end at 5000 and get on plane better and picked up a few mph at cruise.
Got Cigs is offline  
Reply
Old 01-10-2012 | 02:38 PM
  #5  
Banned
 
Joined: Mar 2008
Posts: 981
Likes: 0
Default

It's all about torque ! I'm sure the 32's will put you closer to where you want to be with out any performance loss . I would even try a pair of 34's for cruising . just my .02
Jeff P31 is offline  
Reply
Old 01-11-2012 | 11:25 AM
  #6  
Thread Starter
Registered
25 Year Member
 
Joined: Nov 2000
Posts: 1,518
Likes: 21
From: PA USA
Default

any other opinions? Also running 32's won't it load the engine more?

Last edited by baja27; 01-11-2012 at 08:25 PM.
baja27 is offline  
Reply

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



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.