Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
Since the Suzuki 250 & 300 have the same bore and stroke where does the 50hp >

Since the Suzuki 250 & 300 have the same bore and stroke where does the 50hp

Notices
General Boating Discussion

Since the Suzuki 250 & 300 have the same bore and stroke where does the 50hp

Thread Tools
 
Old 09-03-2018 | 02:54 AM
  #1  
Thread Starter
Registered
10 Year Member
 
Joined: Apr 2015
Posts: 1,268
Likes: 68
Default Since the Suzuki 250 & 300 have the same bore and stroke where does the 50hp

Where does the extra 59hp come from if they are the same bore stroke and displacement. The cams? Thx for any info rm
iliveonanisland is offline  
Reply
Old 09-03-2018 | 07:22 AM
  #2  
jeff32's Avatar
Registered
20 Year Member
 
Joined: Jun 2004
Posts: 8,216
Likes: 572
From: St-Hyacinthe, quebec, canada
Default

Im no engine guru but cam is part of the answer, head flow, compression, computer, max rpm

must be along those lines but someone sure knows for real!
jeff32 is offline  
Reply
Old 09-05-2018 | 07:34 AM
  #3  
Registered
20 Year Member
 
Joined: Jan 2006
Posts: 3,854
Likes: 786
From: St. Pete Beach, FL
Default

Originally Posted by iliveonanisland
Where does the extra 59hp come from if they are the same bore stroke and displacement. The cams? Thx for any info rm
ive been wondering the same. I have a suspicion they may be closer than advertised based on differences in speed. Will have to research.
hogie roll is offline  
Reply
Old 09-05-2018 | 08:11 AM
  #4  
Registered
 
Joined: Apr 2007
Posts: 109
Likes: 13
From: Palmetto, FL
Default

Article on iboats

the program that controls the variable valve timing function on the intake valves was re-coded, as was the program that controls the motor's variable intake path function.

"This was all done in the computer," said Greenwood. "The actual cam profiles are not changed. We were able to produce a torque curve that is very similar to that of a big two-stroke. Not quite as strong as a two-stroke, but very close. It peaks much faster that the curve on the DF300."
Dave3fl is offline  
Reply
Old 09-25-2018 | 04:52 PM
  #5  
Registered
20 Year Member
 
Joined: Jan 2006
Posts: 3,854
Likes: 786
From: St. Pete Beach, FL
Default

Originally Posted by iliveonanisland
Where does the extra 59hp come from if they are the same bore stroke and displacement. The cams? Thx for any info rm
DF250 3.6L
DF250SS 4.0
DF300 4.0
DF350 4.4

The DF250SS must have confused you. Per the article above it’s tuned differently.
hogie roll is offline  
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



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.