Go Back  Offshoreonly.com > Technical > General Q & A
Blower boost,Merc 600 SCi >

Blower boost,Merc 600 SCi

Notices

Blower boost,Merc 600 SCi

Thread Tools
 
Old 06-26-2008 | 04:14 PM
  #1  
Thread Starter
Charter Member #415
 
Joined: Nov 2000
Posts: 3,357
Likes: 0
From: Jasper,Alabama
Default Blower boost,Merc 600 SCi

New owner wanted to know,can't find it on Merc website. I know it's pretty low,but don't remember.
Magicfloat is offline  
Reply
Old 06-26-2008 | 04:25 PM
  #2  
Beak Boater's Avatar
Charter Member # 545
25 Year Member
Gold Member
 
Joined: Dec 2000
Posts: 2,152
Likes: 2
From: Port Tobacco MD/Cape Coral Fl
Default

If it has Smart Craft you can toggle through the pages to find it. Its under manifold pressure, I think. 4 lbs, sticks in my mind, but not sure. We had them in a 38 Fountain. Im sure Dustin Whipple knows. I know when you hit the rev-limiter, a message comes on the smartcraft screen saying it was reducing power. I guess by a boost bypass.
Beak Boater is offline  
Reply
Old 06-26-2008 | 06:47 PM
  #3  
Whipple Charged's Avatar
Registered
 
Joined: Oct 2000
Posts: 1,436
Likes: 5
From: Fresno, CA, 93722, USA
Default

Originally Posted by Beak Boater
If it has Smart Craft you can toggle through the pages to find it. Its under manifold pressure, I think. 4 lbs, sticks in my mind, but not sure. We had them in a 38 Fountain. Im sure Dustin Whipple knows. I know when you hit the rev-limiter, a message comes on the smartcraft screen saying it was reducing power. I guess by a boost bypass.
4.5psi at peak, during sea level or near sea level applications. Overspeed is handled by misfiring cylinders vs. boost. Rev limit is nice and soft.

Dustin
Whipple Charged is offline  
Reply
Old 06-27-2008 | 04:45 AM
  #4  
Wild Card 09's Avatar
the Flightmaster
 
Joined: Nov 2005
Posts: 331
Likes: 1
From: Stuttgart, Germany
Default

4.5 psi boost.

620 - 635 crankshaft hp and around 820 Nm torque, seems to be what the stock motor delivers.
The power peaks at around 5100 - 5200 rpm, so propping to run to the (5350 rpm) limiter doesn't usually produce the best top speed.
Wild Card 09 is offline  
Reply
Old 06-27-2008 | 07:53 AM
  #5  
Knot 4 Me's Avatar
Registered
20 Year Member
 
Joined: Jun 2005
Posts: 8,407
Likes: 797
From: Central IL
Default

4 lbs. was about all you would see on the gauges at LOTO.
Knot 4 Me is offline  
Reply
Old 06-27-2008 | 08:54 AM
  #6  
Registered
 
Joined: Jun 2006
Posts: 253
Likes: 1
From: Seneca Lake
Default 600 sci motor

At w.o.t. 5400 rpm I have seen between 4-5 max on boost guage
wellcrafted is offline  
Reply
Old 06-27-2008 | 02:32 PM
  #7  
Whipple Charged's Avatar
Registered
 
Joined: Oct 2000
Posts: 1,436
Likes: 5
From: Fresno, CA, 93722, USA
Default

Originally Posted by Wild Card 09
4.5 psi boost.

620 - 635 crankshaft hp and around 820 Nm torque, seems to be what the stock motor delivers.
The power peaks at around 5100 - 5200 rpm, so propping to run to the (5350 rpm) limiter doesn't usually produce the best top speed.
Power does not peak at 5100rpm, it continues to climb. Stock rev limit is 5400rpm and that is peak power in stock trim.

Dustin
Whipple Charged is offline  
Reply
Old 06-28-2008 | 03:50 PM
  #8  
Thread Starter
Charter Member #415
 
Joined: Nov 2000
Posts: 3,357
Likes: 0
From: Jasper,Alabama
Default

Has anyone been to the Merc Racing website lately? The new fuel spec for the 600 is now 87,down from 91.
Magicfloat is offline  
Reply
Old 06-28-2008 | 03:55 PM
  #9  
Whipple Charged's Avatar
Registered
 
Joined: Oct 2000
Posts: 1,436
Likes: 5
From: Fresno, CA, 93722, USA
Default

Originally Posted by Magicfloat
Has anyone been to the Merc Racing website lately? The new fuel spec for the 600 is now 87,down from 91.
Yes, I did catch that, that was one new "update" but the 700 will not follow.

Dustin
Whipple Charged is offline  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Magicfloat
Formula
2
06-26-2008 10:22 PM
Magicfloat
General Boating Discussion
5
05-14-2006 07:25 PM
Superbabi
General Q & A
9
03-03-2006 07:57 PM
Superbabi
General Q & A
0
10-19-2005 01:05 PM
Superbabi
Superboat
166
06-04-2005 02:05 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



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.