Go Back  Offshoreonly.com > Technical > Drives and Lower Units
IMCO Lower Decisions >

IMCO Lower Decisions

Like Tree9Likes

IMCO Lower Decisions

Reply

Old 02-14-2018, 02:53 PM
  #31
Platinum Member
Platinum Member
Thread Starter
 
SecondWind's Avatar
 
Join Date: Dec 2013
Location: Bourbonnais, IL
My Boat: 2004 American Offshore NSX
Posts: 493
Default

Originally Posted by launchpad475 View Post
I will go ahead and call BS on this, I would argue they are the same if anything. In fact in the basement 80 range, I bet a merc lower would be faster.
I donít know, thatís what Iíve read on this website. Appreciatiate you calling me out though. Iím not bull**** I promise you that.
SecondWind is offline  
Reply With Quote
Old 02-14-2018, 03:12 PM
  #32
Registered
iTrader: (1)
 
Join Date: Jun 2009
Location: Kirkland, WA
My Boat: 01' Nordic Heat, Whipple 540 with Holley EFI
Posts: 431
Default

Not trying to bust your chops, Ive heard the same type of comment but the speed additive was when you got above the 90 mph range. I still don't buy it, I've kinda tried all that stuff by default. Probably not apples to apples, but in my boat for instance (28 Nordic) it takes about 17HP per mph. So, an imco lower would be almost like adding 70HP in that case.

Now, a blueprinted lower? Theres some data to suggest a couple MPH with those.
launchpad475 is offline  
Reply With Quote
Old 02-14-2018, 05:27 PM
  #33
Platinum Member
Platinum Member
Thread Starter
 
SecondWind's Avatar
 
Join Date: Dec 2013
Location: Bourbonnais, IL
My Boat: 2004 American Offshore NSX
Posts: 493
Default

I'm not sure how much speed is increased with a SC lower, it's all hear say. I will say that prop shaft height has made a huge difference with our boat. Taking a 1/2 inch out of the drive increased our top speed 7mph, not's not bull****. If someone would post this info without my testing I would call bull****.
abones likes this.
SecondWind is offline  
Reply With Quote

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


OSO Sponsor
OSO Advertiser
OSO Advertiser
OSO Advertiser