Old 09-23-08, 06:11 PM
Thread Starter
Join Date: Sep 2008
Location: mass
Posts: 1

what are the disadvantages of having two standard rotation outboards verses one standard and one counter rotating i now have twin 150's and am thinking of repowering and was told that i don't need counter rotating motors if i have trim tabs " this is on 25' boat w/9.5' beam if it makes a difference" thanks
Sponsored Links
Old 09-23-08, 08:00 PM
Join Date: Jul 2008
Location: Montgomery MN
Posts: 541
I havn't delt with twin engine outboards, but I would stay with counter rotating gearcases. I will check and see what I can find out at work and post tomarrow.
Old 09-24-08, 04:06 AM
Join Date: Apr 2007
Location: Near Buffalo, NY
Posts: 4,239
The main disadvantage is the boat will tend to crab sideways.
Old 09-28-08, 07:55 PM
hoary's Avatar
Join Date: Jun 2008
Location: North Alabama USA
Posts: 103
I had a 24' single 327/Merc I/O and a 24' with Twin 140Merc I/O's.
With nuetral trim tabs, on a long strarght run on 'smooth as glass' water you'll notice a slow turn (to port as I remember) but when the water is rougher, the Torque of the engines/props in the water will cause more of a turn.
Niether is going to be a big problem.
I think I set the trim tabs on the twin 140's but the 327 Chebby was straight and never was a problem.

If your operating in the Fog by GPS, the little arrow will tell you what course correction you need.

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 Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes