newbie 91 RINKER 236 sport cuddy

[burninbridges236]

Hi all im a newbie to this site. I was am glad i found a rinker site. Ok i have a rinker 236 with the 454mag ive had it since last winter and i was wondering  what the top speed should be for this boat. I love it but i burnt a lil oil over the summer and i think im gonna to a motor buildup and was just looking for sum ideas.
    THANKS TO ALL

[frodo13056]

First off, welcome to the site! 

I've had two of the Rinker 236 models - a 1990 236 (carbureted 454 - 330 HP) and a 1994 236 (carbureted 454 - 300 HP) and both boats would run mid to low 60's lightly loaded. The 1990 Merc 454 was rated as Base Horsepower - BHP and the 1994 Merc 454 was rated as Prop Horsepower - PHP but both engines were pretty much the same. If I recall correctly the pre-MPI 454 Mag motors were rated at 350 BHP and the MPI 454 Mags were rated at 385 BHP. I also had a 1998 PowerQuest Legend 260 with the 454 Mag MPI (385 BHP) that would run mid 70's all day long.
 
Here's a link for an idea on how to up the ponies if you decide to go for a rebuild:
http://www.perfprotech.com/store/product/New-GM-Power-Package-454-MAG-392hp-includes-fuel-and-ignition-components-392PARPAC,69247.aspx


Good luck with the 236!

Steve