Go Back  Offshoreonly.com > Owners Forum > Sonic
31 Sonic SS twin 496mag ho's question >

31 Sonic SS twin 496mag ho's question

Notices

31 Sonic SS twin 496mag ho's question

Thread Tools
 
Old 10-13-2007, 06:54 AM
  #1  
Registered
Thread Starter
 
Join Date: Oct 2004
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default 31 Sonic SS twin 496mag ho's question

What props came stock with this boat and what speed would it run with those props?

Individual made mention of a leak back valve that clogged on one motor and having to replace the rubber between the engine and the hull exhaust? Where is a leak back valve on this engine and what rubber would you think it would be?
gcoutlaw is offline  
Old 10-13-2007, 10:06 AM
  #2  
Registered
Platinum Member
 
Join Date: Dec 2004
Location: Melbourne Beach, FL
Posts: 484
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by gcoutlaw
What props came stock with this boat and what speed would it run with those props?

Individual made mention of a leak back valve that clogged on one motor and having to replace the rubber between the engine and the hull exhaust? Where is a leak back valve on this engine and what rubber would you think it would be?
MY 31SS came with 26P. I run 72MPH GPS and I hit the rev limiter at this speed. I think the boat would gain a few MPH with 28P.

The only leak back valve that I know of was on my 28SS which had internal flapper valves to prevent a following sea from going into the exhaust.

Why don't you go to St Augustine and take it out for sea trials?
myturn is offline  
Old 10-13-2007, 08:28 PM
  #3  
Registered
Thread Starter
 
Join Date: Oct 2004
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default 31ss

Thanks My Turn but not the boat I am referring too. This other boat is privately owned in LA.
gcoutlaw is offline  
Old 10-15-2007, 03:35 PM
  #4  
Member #9
Charter Member
 
hp500efi's Avatar
 
Join Date: Oct 2000
Location: Pewaukee, WI
Posts: 4,273
Likes: 0
Received 4 Likes on 2 Posts
Default

2001 with 26P and I run about the same GPS 72 loaded. I am not hitting the rev limiter and thought about labbing to get a few more R's out of the motor however the stock 26P is a great midrange/cruising prop so I left it alone.
__________________
Member of the Liquid Jungle
hp500efi is offline  
Old 10-15-2007, 04:57 PM
  #5  
Registered
 
Join Date: Jul 2006
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

I've got a 26' Prowler w/ 500 efi and run 73(gps), 5100rpm. with 26p Labbed bravo 1.
goofass is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
26sonic
Sonic
3
11-09-2007 12:25 PM
JS232
General Q & A
2
02-27-2006 04:33 PM
tj309
General Q & A
2
11-09-2005 09:30 AM
WHOSNEXT
Pantera
2
08-25-2004 06:27 PM
boatinbill
General Boating Discussion
5
07-15-2002 12:10 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



Quick Reply: 31 Sonic SS twin 496mag ho's question


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

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.