Sonic 27' Outboards
07-27-2025 | 08:42 AM
#13
Thread Starter
Registered
Joined: Jul 2010
Posts: 136
Likes: 30
From: Chester,Ct
Outboards
I'm sorry to ask this many questions but my experience with bigger boats has been I/O's.in the past. what difference is there in the mounting configuraion on the 27's? I have had outboards on the last 3 boats I had and they really grew on me so this will be a something new for me with the Twin O/B, but well worth trying in my opinion.
07-28-2025 | 07:05 AM
#14
Registered
Joined: Mar 2002
Posts: 4,470
Likes: 2,107
From: Milton, Fla!
07-28-2025 | 07:08 AM
#15
Registered
Joined: Mar 2002
Posts: 4,470
Likes: 2,107
From: Milton, Fla!
The new 4 strokes have changed what you can do w/an OB performance hull.
Similar rigging, way easier to get to the motors.
Do your homework on required maint if buying new though.
The shops love them 😉
Similar rigging, way easier to get to the motors.
Do your homework on required maint if buying new though.
The shops love them 😉
I'm sorry to ask this many questions but my experience with bigger boats has been I/O's.in the past. what difference is there in the mounting configuraion on the 27's? I have had outboards on the last 3 boats I had and they really grew on me so this will be a something new for me with the Twin O/B, but well worth trying in my opinion.
07-28-2025 | 07:19 AM
#16
Registered
Joined: Jan 2006
Posts: 3,865
Likes: 793
From: St. Pete Beach, FL
The 24’s had a design flaw in how they used the rear seat bases to reinforce the transom.
Yours has a different lay out so probably not an issue.
Worst case would be adding reinforcing knees.
That being done, it’s screaming for a pair of 450R’s.
Those motors are 550 lbs per, meaning you can get to 300 HP w/new motors at similar weight.
Thats a net gain of 150 HP w/no weight penalty.
One negative to those motors though, they’re basically worthless for retail.
If both are solid, w/motor specific rigging, you might get $2500 - $4k for everything.
Yours has a different lay out so probably not an issue.
Worst case would be adding reinforcing knees.
That being done, it’s screaming for a pair of 450R’s.
Those motors are 550 lbs per, meaning you can get to 300 HP w/new motors at similar weight.
Thats a net gain of 150 HP w/no weight penalty.
One negative to those motors though, they’re basically worthless for retail.
If both are solid, w/motor specific rigging, you might get $2500 - $4k for everything.
07-28-2025 | 09:01 AM
#18
Registered
Joined: Mar 2002
Posts: 4,470
Likes: 2,107
From: Milton, Fla!
07-29-2025 | 04:55 PM
#19
Thread Starter
Registered
Joined: Jul 2010
Posts: 136
Likes: 30
From: Chester,Ct
27 Sonic
Looked at the boat today, definately buying it.did a compression test and one of the cylinders on the port motor only had 50 lbs of comprssion in it. just for argument sake whats a good price for the boat if I figure on a power head for that motor. The rest of the boat is in very good condition, just needs a good cleaning. Has a nice tandem axle trailer with bunks.
07-29-2025 | 07:36 PM
#20
Banned
Joined: Jun 2025
Posts: 10
Likes: 4
Sonic did offer a few outboard configurations back in the day, especially on their smaller hulls like the 21 and 24. Twin 225 Johnsons were a pretty common setup, solid power for the size. If you can get the hull length or model number, it’ll help narrow things down.
