Like Tree0Likes

may i ask ?

Reply
Old 09-04-2007, 04:15 PM
  #11
Registered
VIP Member
 
Join Date: Jan 2004
Location: Boca Raton, FL
My Boats: None
Posts: 3,682
Default

When the power-to-weight ratio of the diesel engine gets closer to gas engines, it will make more sense to have a diesel powerplant than a gasser. Not having an ignition system makes the diesel more reliable. (No spark plugs, plug wires, coils, distributors, crank pick-ups, etc.)

The diesel engines that make gobs of horsepower are VERY expensive.
Edward R. Cozzi is offline  
Reply With Quote
Old 09-04-2007, 04:23 PM
  #12
Platinum Member
Platinum Member
 
Jassman's Avatar
 
Join Date: Oct 2000
Posts: 9,371
Default

Quote:
Originally Posted by tblrklakemo View Post
The only problem is the diesel motor will need something between it and the prop to make it a performance boat motor. Wont you give up something by having a prop so steep that will turn you respectable MPH's at a WOT of only 3200 rpms? Thus the need for multi speed gear boxes? I would think the massive torque of a diesel motor would allow this without a sweat.

Been a few threads on this...I wish someone would make one..

As to the diesels that make gobs of HP/Torque they are way to heavy for our type's of applications. Unfortunately, you can not have high rpms especially in a straight 6 application and expect it to last. Banks is suppose to be coming out with something shortly with over 600 hp..I will wait and see.
Jassman is offline  
Reply With Quote
Old 09-04-2007, 04:28 PM
  #13
SeaRay Sundancer
Gold Member
 
tblrklakemo's Avatar
 
Join Date: Nov 2005
Location: SW Missouri
My Boats: In the Slow Lane
Posts: 2,914
Default

Quote:
Originally Posted by Jassman View Post
Been a few threads on this...I wish someone would make one..

As to the diesels that make gobs of HP/Torque they are way to heavy for our type's of applications. Unfortunately, you can not have high rpms especially in a straight 6 application and expect it to last. Banks is suppose to be coming out with something shortly with over 600 hp..I will wait and see.
What about that two speed "ring" drive they put in the yanmar cobalt 343?
tblrklakemo is offline  
Reply With Quote
Old 09-04-2007, 04:46 PM
  #14
Registered
Thread Starter
 
Join Date: Sep 2007
Posts: 12
Default

Thank you all for your advices
pasch44 is offline  
Reply With Quote
Old 09-05-2007, 09:49 AM
  #15
Registered
VIP Member
 
Join Date: Jan 2004
Location: Boca Raton, FL
My Boats: None
Posts: 3,682
Default

Back in the old days, (when I was racing), SeaTek had an aluminum alloy diesel that had a great power-to-weight ratio and made over 600hp. The problem was it was over $100,000 back then. Today they are probably 800Hp and $250,000!
Edward R. Cozzi is offline  
Reply With Quote
Reply



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 02:21 PM.


Copyright 2011 OffShoreOnly. All rights reserved.