Go Back  Offshoreonly.com > Owners Forum > Formula
Manifolds and risers >

Manifolds and risers

Notices
Formula

Manifolds and risers

Thread Tools
 
Old 02-22-2015 | 07:06 PM
  #1  
Thread Starter
Registered
 
Joined: Nov 2008
Posts: 965
Likes: 0
From: East Lyme, CT
Default Manifolds and risers

Have a 07 292, and looking to replace the manifold and risers (350 MAG, dry joint) Anyone use Barr for these replacements instead of Merc's??? Just wondering.......quite a big price difference.
JayFan is offline  
Reply
Old 02-23-2015 | 07:26 AM
  #2  
Registered
 
Joined: May 2007
Posts: 1,147
Likes: 1
From: PA
Default

Did mine 2 years ago, went with mercs, $1200 for both motors. I also did new plugs and wires. Looked into the stainless setup, which was around $1200 per motor, for what I do boating wise I couldn't justify the price diff. Boat will be 68-70 mph with or without.
Splitdecision271 is offline  
Reply
Old 02-23-2015 | 10:30 PM
  #3  
Registered
10 Year Member
 
Joined: Dec 2011
Posts: 117
Likes: 0
From: Paradise Valley, Az
Default

I had a 2007 292 and replace the exhaust with the Stainless Marine manifolds. The Stainless manifolds lightened the motors by about 160 pounds, it really helped the boat come on plane quicker. The exhaust also sounded much better.
Made It Rain is offline  
Reply
Old 02-23-2015 | 11:14 PM
  #4  
Expensive Date's Avatar
Registered
 
Joined: May 2006
Posts: 4,224
Likes: 1
From: West Creek NJ
Default

Made it rain is correct, taking that weight off really helps the 292 plane.
Expensive Date is offline  
Reply
Old 02-24-2015 | 08:54 AM
  #5  
Registered
 
Joined: May 2007
Posts: 1,147
Likes: 1
From: PA
Default

I'm sure the weight reduction would have helped, as all the weight in these boats is in the rear. That's the whole reason why I looked into the EMI's and Stainless systems, but in the end the cost to benefit just wasn't there for me. Not sure I'd know what to do if she wasn't a slug out of the hole.
Splitdecision271 is offline  
Reply
Old 02-25-2015 | 09:18 PM
  #6  
Registered
 
Joined: Jan 2007
Posts: 794
Likes: 0
From: Sweet Home, North Alabama and Orange Beach
Default

[ATTACH=CONFIG]537698[/ATTACH]

just did the imco swap. Looking forward to better planing when I have a boat load of fat chicks
Attached Thumbnails Manifolds and risers-20150125_104447.jpg  
looseconnection is offline  
Reply
Old 02-25-2015 | 09:45 PM
  #7  
Expensive Date's Avatar
Registered
 
Joined: May 2006
Posts: 4,224
Likes: 1
From: West Creek NJ
Default

Originally Posted by looseconnection
[ATTACH=CONFIG]537698[/ATTACH]

just did the imco swap. Looking forward to better planing when I have a boat load of fat chicks

Did you block off the prop exhaust like I did with the IMCO. If you did I then removed the pinwheel baffels in the tip as I thought I had too much back pressure. Made it loud as hell though.

Last edited by Expensive Date; 02-25-2015 at 10:10 PM.
Expensive Date is offline  
Reply
Old 02-25-2015 | 10:08 PM
  #8  
Expensive Date's Avatar
Registered
 
Joined: May 2006
Posts: 4,224
Likes: 1
From: West Creek NJ
Default

After IMCO exhaust coming on plane, its the weight you will not pick up any speed.

https://www.youtube.com/watch?v=liVGPDXolco
Expensive Date is offline  
Reply
Old 02-26-2015 | 09:40 AM
  #9  
Registered
 
Joined: Jan 2013
Posts: 267
Likes: 0
From: Atchison, Ks
Default

No speed gain at all? i was thinking about putting some new exhaust on my sb 350's for looks and weight and a few mph!!!
84 Formula 272 is offline  
Reply
Old 02-26-2015 | 03:38 PM
  #10  
Registered
10 Year Member
 
Joined: Dec 2011
Posts: 117
Likes: 0
From: Paradise Valley, Az
Default

My son in law made this video after we installed the Stainless Marine exhaust. It sounded better, picked up a little on the top end, and came on plane much faster.

https://www.google.com/url?sa=t&rct=...87269000,d.cGU
Made It Rain is offline  
Reply


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.