Like Tree0Likes

sportmaster vs. imco lower/handling

Reply
Old 07-17-2003, 07:53 AM
  #1
Registered
Thread Starter
 
Join Date: Dec 2002
Location: 1000 Islands
Posts: 4,783
Default sportmaster vs. imco lower/handling

Posting this question for a buddy of mine who's not too computer savvy. Here's the scenario...32' Velocity, 525SC's w/chillers and bumped boost/CMI's. The boat is strong as you can imagine... but pretty loose @ 90+ mph. Now don't get me wrong...we can drive these boats straight @ speed (ain't skeered) and flog it with regularity. These boats really love the HP to a point as the throttle response makes them more drivable (have had two myself) Here's the question: which lower case do you think (or know) would perhaps "settle down" the boat @ speed? This is not a speed issue (it's fast enough for most mortals ) nor is it necessarily a strength issue, as the boat is pretty light and good luck has been had since going to 1:36 (though the throttle response up top w/ 1:5's in cool weather had to be felt to be believed ) Avioding a blowout is a concern, though it hasn't happened (thank God) and there are no signs of propeller burn, though none of the ppg or Dupont paint will stay on the lower 1/2's three weeks, which may be an indication of impending blowout? So....hydrodynamically/high speed handling...what do you think?
Attached Thumbnails
sportmaster vs. imco lower/handling-peter-running.jpg  
Rippem is offline  
Reply With Quote
Old 07-17-2003, 08:02 AM
  #2
Registered
Thread Starter
 
Join Date: Dec 2002
Location: 1000 Islands
Posts: 4,783
Default

I posted this here for more immediate exposure as he is ready to do something, and the dollars/case availability are not an issue. Thanks...painted it himself like Koster's old sit down 41' modified class boat...turned out very nice. (crappy analog photos)
Attached Thumbnails
sportmaster vs. imco lower/handling-ragged-edge.jpg  
Rippem is offline  
Reply With Quote
Old 07-17-2003, 04:55 PM
  #3
Registered
Thread Starter
 
Join Date: Dec 2002
Location: 1000 Islands
Posts: 4,783
Default

With the WEALTH of knowledge here...somebody's got to have some input?
Rippem is offline  
Reply With Quote
Old 07-17-2003, 09:54 PM
  #4
Registered
 
Join Date: Feb 2001
Location: EGG HARBOR TOWNSHIP, NJ
My Boats: 2004 PANTERA SURVIVOR
Posts: 513
Default

well,

you truly never stated the problem other then who ever is painting the lower unit sucks. but thats maybe why mercury does not paint the lowers. at that speed the paint will come off anyway. there have been many test as far as side by side comparision and so far they are equal in speed but the mercurey has a longer skeg wich will make any boat handle better, and does help prevent blowout. there units are not painted thow.

Treadwell
Treadwellmotorsports is offline  
Reply With Quote
Old 07-17-2003, 10:56 PM
  #5
Registered
Thread Starter
 
Join Date: Dec 2002
Location: 1000 Islands
Posts: 4,783
Default

Thanks Treadwell, basically it's about safety...avoiding blowout over and above a stock bravo case, and getting the "feeling" of more rudder in the water. You know, I'm sure just how loose this hull is at that speed You can read a newspaper under the aft section of pad at speed...the boats got the right "attitude" just very high overall..running pretty much on a "little" pad, tail of the tabs (3 point kind of thing) and those lower 1/2's. Wondering which case will give us a little more ass end stability...and a little more confidence in making small steering corrections @ speed. Your vote would be with the Merc case?
Rippem is offline  
Reply With Quote
Old 07-17-2003, 11:00 PM
  #6
Registered
 
Join Date: Nov 2002
Location: Champaign, IL
My Boats: boatless.......
Posts: 654
Default

my vote would always be with the mercury stuff.... much more money and R&D

I also have the sportmaster cases on my xr drives i like them very much the reason i have them is for a warranty. read the fine print on the imco stuff... they only warranty what they make ... that is the case... they buy merc (i think) shafts and gears to put in them.. so nobody "takes care" of a broken drive really.... where as if you have a sportmaster xr or such ... anyone who deals in mercury parts will work on or warranty that drive.

Don
chromecat is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
axapowell
Wanted
3
04-16-2008 07:34 PM
collinmadden
Drives and Lower Units
1
12-03-2007 06:14 PM
Smarty
General Q & A
13
06-17-2007 12:08 PM
FormulaM2Formula
General Q & A
6
06-06-2006 10:23 PM
John B
General Q & A
0
07-24-2002 10:26 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 01:54 PM.


Copyright 2011 OffShoreOnly. All rights reserved.