Go Back  Offshoreonly.com > Owners Forum > Formula
292 vs. 311 dimensions >

292 vs. 311 dimensions

Notices
Formula

292 vs. 311 dimensions

Thread Tools
 
Old 02-28-2017, 08:37 PM
  #11  
'05 Concept SF23
VIP Member
 
Join Date: May 2002
Location: Gladeville, TN
Posts: 1,722
Likes: 0
Received 2 Likes on 1 Post
Default

I had a 311 with 468 blower motors. I ran 4 blade Hydromotive 28 pitch props. Boat would run 85 all day and 87-88 in perfect conditions.
f311fr1 is offline  
Old 03-03-2017, 12:41 PM
  #12  
Registered
 
Join Date: Jul 2006
Location: Charleston, il
Posts: 872
Received 46 Likes on 33 Posts
Default

Originally Posted by f311fr1
I had a 311 with 468 blower motors. I ran 4 blade Hydromotive 28 pitch props. Boat would run 85 all day and 87-88 in perfect conditions.
More details on blower motors please!!!
TylerBurich is offline  
Old 03-14-2017, 06:27 PM
  #13  
Registered
iTrader: (4)
 
Join Date: May 2009
Location: Chicago, IL; Onekama, MI
Posts: 3,887
Received 121 Likes on 66 Posts
Default

I agree- I would also like to hear more details on f311's boat. I've got an '89 292 with ITS boxes, -2 sportmasters and twin 650 hp 509's and all I've been able to get out of it so far is 81 mph via gps. I've had many motors in my 292. Originally it came with 330's which it was good for 63 mph, then I put in 420's and I was able to get 68 mph. This summer I'm installing bigger carbs, Eickert headers, and -3 IMCO's. IMO this boat with the power I have should be running upper 80's.

The one thing I will say about Formula boats as a whole, is they are not fast. They are on par with most with stock power, but when you start adding power, you don't get the returns like you do with a Sonic, Active Thunder, or Fountain and it has nothing to do with them being well built. Sonics and AT's are every bit the same weight and a 31 or either model will be in the low 90's with the same power as what I am running. I think a lot has to do with the rounded edges on the chines and transom. I am most likely going to be sharpening the transom edge if I have time this spring. One way or another, I'm getting to upper 80's in this boat.
endeavour32 is offline  
Old 03-14-2017, 06:58 PM
  #14  
Registered
 
Join Date: Jul 2014
Location: Denton, MD
Posts: 668
Received 113 Likes on 70 Posts
Default

Originally Posted by endeavour32
I agree- I would also like to hear more details on f311's boat. I've got an '89 292 with ITS boxes, -2 sportmasters and twin 650 hp 509's and all I've been able to get out of it so far is 81 mph via gps. I've had many motors in my 292. Originally it came with 330's which it was good for 63 mph, then I put in 420's and I was able to get 68 mph. This summer I'm installing bigger carbs, Eickert headers, and -3 IMCO's. IMO this boat with the power I have should be running upper 80's.

The one thing I will say about Formula boats as a whole, is they are not fast. They are on par with most with stock power, but when you start adding power, you don't get the returns like you do with a Sonic, Active Thunder, or Fountain and it has nothing to do with them being well built. Sonics and AT's are every bit the same weight and a 31 or either model will be in the low 90's with the same power as what I am running. I think a lot has to do with the rounded edges on the chines and transom. I am most likely going to be sharpening the transom edge if I have time this spring. One way or another, I'm getting to upper 80's in this boat.
What did the shorties net you? I believe I may have saw this on another thread before? I was tossing around the idea of installing them on my 292.
distantthunder is offline  
Old 03-14-2017, 07:51 PM
  #15  
Registered
iTrader: (4)
 
Join Date: May 2009
Location: Chicago, IL; Onekama, MI
Posts: 3,887
Received 121 Likes on 66 Posts
Default

Originally Posted by distantthunder
What did the shorties net you? I believe I may have saw this on another thread before? I was tossing around the idea of installing them on my 292.
I honesty have no idea. I added too many new things last year. Motors, boxes, props, lowers. Overall I gained 10 mph, which I was not that happy for what was done. I still think my drives are way too deep, so I think I'll see a big improvement with the -3. It takes 425 hp to break 70 (gps) with the stock drive height. These boats need power, my goal is to find out what's holding them back. They're a great boat, but somewhere there is an anchor dragging.
endeavour32 is offline  
Old 03-14-2017, 08:27 PM
  #16  
'05 Concept SF23
VIP Member
 
Join Date: May 2002
Location: Gladeville, TN
Posts: 1,722
Likes: 0
Received 2 Likes on 1 Post
Default

Check for a hook at the transom.
f311fr1 is offline  
Old 03-14-2017, 08:54 PM
  #17  
Registered
 
formula1's Avatar
 
Join Date: Apr 2001
Location: Southwest, FL
Posts: 935
Received 0 Likes on 0 Posts
Default

292sr1's definitely have a hook....
formula1 is offline  
Old 03-14-2017, 11:05 PM
  #18  
Registered
iTrader: (4)
 
Join Date: May 2009
Location: Chicago, IL; Onekama, MI
Posts: 3,887
Received 121 Likes on 66 Posts
Default

I doubt it's the hook in the transom. It's on the far outside end of the hull and when you are going 75+ very little of that is in the water. Someone else on here removed the hook in either a 292, 242 maybe a 272 and gained nothing. My money is drive depth, and rounded chines and transom edges.
endeavour32 is offline  
Old 03-21-2017, 04:01 PM
  #19  
Registered
iTrader: (1)
 
Join Date: Aug 2007
Location: St.Louis MO
Posts: 1,038
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by endeavour32
I doubt it's the hook in the transom. It's on the far outside end of the hull and when you are going 75+ very little of that is in the water. Someone else on here removed the hook in either a 292, 242 maybe a 272 and gained nothing. My money is drive depth, and rounded chines and transom edges.
Are you sure you haven't over exceeded the limit of your drive depth vs the ability to carry the nose when trimming. I know from outboard set up you can actually have the drive height too high which causes so much slip that you loose mph and no ability to trim the boat anymore...
stlliberator is offline  
Old 03-21-2017, 09:28 PM
  #20  
Registered
 
formula1's Avatar
 
Join Date: Apr 2001
Location: Southwest, FL
Posts: 935
Received 0 Likes on 0 Posts
Default

Originally Posted by endeavour32
I honesty have no idea. I added too many new things last year. Motors, boxes, props, lowers. Overall I gained 10 mph, which I was not that happy for what was done. I still think my drives are way too deep, so I think I'll see a big improvement with the -3. It takes 425 hp to break 70 (gps) with the stock drive height. These boats need power, my goal is to find out what's holding them back. They're a great boat, but somewhere there is an anchor dragging.
My 1990 292 had carbed 454 mags with the upper ends freshened (boat had approx 250 hours when that was done) and Stainless Marine exhaust and we broke 70 easily. I would estimate just shy of 400 hp with exhaust..
formula1 is offline  


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.