Adding a CMC tilt and trim, worth it?
Dewman
Posted 4/11/2009 2:36 PM (#371585)
Subject: Adding a CMC tilt and trim, worth it?




Location: Milwaukee
Hello!
I have an '87 Tuffy, with a 50 hp Johnson tiller. I am thinking of adding a CMC 130 tilt and trim unit, to make life easier. Any comments? Good idea or bad? Worth the trouble? Anybody ever add one of these to a boat? Will it make it too hard to steer with the tiller so far back?

Thank you for your input,

The Dewman
VMS
Posted 4/11/2009 8:13 PM (#371611 - in reply to #371585)
Subject: RE: Adding a CMC tilt and trim, worth it?





Posts: 3480


Location: Elk River, Minnesota
Hiya,

With a 50hp motor that doesn't have trim and tilt, lifting the motor would be a bit tough on the back. That particular motor is somewhere just a touch under 200 pounds, and without having any sort of assistance to lifting or even trimming would make the boat less efficient.

Not sure how far back the CNC would move the motor back, but it will do a couple of things: First, it gives you the ability to trim the motor while under way which will actually get you more speed. With the motor moved back, you will also find it will take minimal trim to get results (raise the bow) prop bite, etc. This is due to the entire center of gravity of the boat being moved back.

As far as where the tiller handle would be, I'm not sure how that would be. If it is long like the newer models, I wouldn't think it would be too bad. Much of that again is dependent on how far back the motor will be moved.

One major thing you can do is if you decide to go with the CNC, you can mount the motor up probably in the highest position (lowest bolt hole on the mounting bracket). You can do that because as the boat goes through the water, the water starts to fill the hole the boat made. So...the water passing over the motor when it is further back means it would be higher on the lower unit. Raising the motor gets the lower unit back out of the water, which makes it faster as well. The motor will also be in "cleaner" water meaning it will have less turbulent water around the prop fins, making it hook up better.

From what I would say, you can only benefit from adding the CNC. A bit of cost in doing so, but if you are good with mechanical things, the only thing you would need is an engine hoist to do it...more or less to lift and hold the motor while you install.
I say go for it!!

Steve

moreyes
Posted 4/12/2009 6:20 AM (#371658 - in reply to #371611)
Subject: RE: Adding a CMC tilt and trim, worth it?




Posts: 99


I added one of those to my first boat they work great had it on a 50 Spirit.
Jono
Posted 4/12/2009 10:52 AM (#371699 - in reply to #371585)
Subject: Re: Adding a CMC tilt and trim, worth it?




Posts: 726


Location: Eau Claire, WI
Yes, its worth it. My old boat had a 50 evinrude w/ manual t/t. was a pain. added the CMC and wondered why I didn't do it sooner.

Jono
decaf
Posted 4/16/2009 5:40 PM (#372592 - in reply to #371585)
Subject: RE: Adding a CMC tilt and trim, worth it?




Posts: 42


Dewman, I too have an '87 Tuffy Rampage 160XT with a 50HP Evinrude tiller. I purchased the boat about 10 years ago. I added the CMC power tilt/trim unit after I purched the boat. The perfomance was a bit better but the convenience is awesome and I highly recommend it. I also added a foot controlled trim switch which made life even easier. I am currently rebuilding my rig so you should see some pics posted in a couple of months.

Good Luck, Mike.
seeking 54
Posted 4/17/2009 6:52 AM (#372668 - in reply to #371585)
Subject: RE: Adding a CMC tilt and trim, worth it?




Posts: 67


Totally, totally worth it!

I have the 130 CMC on my 176 Springbok 70 Merc. It's been 3 years now, never had an issue.

s54