Like Tree0Likes

440 hp diesel engine which drive?

Reply
Old 06-11-2003, 07:32 AM
  #11
Diamond Member #001
Charter Member
Trade Score: (2)
 
C_Spray's Avatar
 
Join Date: Oct 2000
Location: Coastal North Carolina
My Boats: 2000 Formula 382 with Innovation 600's
Posts: 4,789
Default

Quote:
Originally posted by catmando
....the IMCO 4X4.....can handle over 1300HP.
Whoa! 1300 hp at 5200 rpm = 1300+ ft-lbs. That's up in the range of over-stressing #6's. I really kind of doubt that the 4x4 can handle that. (Unless you're talking 1300 hp at an input shaft speed of 16,000 rpm, in which case the torque loads won't be so bad.

440 diesels are probably 2800-3000 rpm engines, right? we're talking 800 ft-lbs of torque, so I think we're talking Pulse, Arneson ASD8, or #6's here.

I seem to recall seeing a development stern drive at Twin Disc's booth at the Miami show that was rated for 440 deisel hp, but there is nothing about it on Twin Disc's web site. It looked like a cross between a Bravo 2 and a #6, and I seem to remember it being made of cast bronze. Anyone remember seeing it?

How about one of the big Konrad 520 or 540 drives ? Those specs look pretty close...
__________________
Retired! Boating full-time now.

Last edited by C_Spray; 06-11-2003 at 07:37 AM.
C_Spray is offline  
Reply With Quote
Old 06-11-2003, 07:39 AM
  #12
VIP Member
VIP Member
 
OldSchool's Avatar
 
Join Date: Dec 2001
Location: Florida
My Boats: Cigarette CC and Boston Whaler currently
Posts: 10,094
Talking

Hey Chuck,
It's good to see somebody make an intelligent response to the man's question instead of all this cheerleading

By the way, you misspelled diesel

Craig
OldSchool is offline  
Reply With Quote
Old 06-11-2003, 07:47 AM
  #13
Diamond Member #001
Charter Member
Trade Score: (2)
 
C_Spray's Avatar
 
Join Date: Oct 2000
Location: Coastal North Carolina
My Boats: 2000 Formula 382 with Innovation 600's
Posts: 4,789
Default

Quote:
Originally posted by craig223
Hey Chuck,...By the way, you misspelled diesel...
Only the second time - got it right the first.

Really like the spec's on those Konrads - Wish there were some people who could give us real-life experience stories about them.

Timucin - Your friend other alternative would be to look at putting some overdrive transmissions in the boat, say .75:1 or even .67:1 if there is such a thing. This would drop the torque loading to the drive.
__________________
Retired! Boating full-time now.
C_Spray is offline  
Reply With Quote
Old 06-11-2003, 08:06 AM
  #14
Mike J
Guest
 
Posts: n/a
Default

I would check out the Weismann
Drive units.
Call Pat @ 1-949-645-4064
Or email/PM shifter on this OSO
Board.
Perhaps hes reading this.
Mike J.
 
Reply With Quote
Old 06-11-2003, 09:27 AM
  #15
Platinum Member
Platinum Member
 
mcollinstn's Avatar
 
Join Date: Sep 2001
Location: tn
My Boats: 1991 F311SR1
Posts: 5,491
Default

#1: He says it performs better with an outdrive? Doesn't make sense. A 45' hull is too long and too heavy for a Sterndrive to muscle around for bow lift. The hull itself MUST be able to lift itself by DESIGN, not by drive leverage. With drive leverage a nonissue, a surface drive is the obvious choice. And don't forget, little fins can be added to the bottom of the rudder/skeg on an Arneson for MUCHO bow lift ability.

#2: KONRAD is a HD drive that came from diesel military applications (at least that is what a guy at the booth told me a coupla years back) and has been modernized for appearance and hydrodynamic performance. It would be an obvious candidate.

#3: Whatever is required to overdrive the input shaft speed to 5000rpm should be done. This will minimize the torque loading in the drive without overspeeding the bearing and lube capabilities.

I still scratch my head and wonder why this Joe won't consider the surface drive packages (Pulse and Arneson). Smack him around a little, Tim, and get him to make some sense.
mcollinstn is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SOX
General Boating Discussion
13
01-03-2012 02:43 PM
PremierPOWER
Trucks, Trailers and Transportation
6
06-21-2007 12:39 AM
B38
General Q & A
1
04-22-2005 12:14 PM
Stormrider
General Boating Discussion
7
05-28-2004 09:35 AM
Jayl13
General Boating Discussion
17
11-10-2002 01:17 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 09:03 PM.


Copyright 2011 OffShoreOnly. All rights reserved.