Best Engine for a 20ft CC
 

can anyone tell me how much weight is too much to put on the back of a 20ft CC? im looking to get as much fuel economy as possible but not be too slugish getting on plane. thanks

Re: Best Engine for a 20ft CC
 

Meads,

A Mercury 200hp Saltwater gives you that good punch. I'm curious to see what everyone thinks is the perfect motor for the 20c.c. A 150hp is perfect too and weight is just about identical.Why not that extra power when facing rough blue water.

Re: Best Engine for a 20ft CC
 

When I initially bought my 20'CC, it had a 130hp Yamaha Saltwater Series engine on it and it would FLY. The boat only weighs 1650 pounds, you DO NOT need to get to the Big Rock in 20 minutes! For use around Morehead, Beaufort Inlet, Harkers, and well up the East Side towards the Atlas Tanker, you would be just fine with something in the 130-150 range.

As to specific engines, there is likely only one person among the membership of this site that will argue with you against the Suzuki 4-stroke 115/140's.....and it's not me.

Keep an eye on the weight, they are tail-heavy boats...

[ October 07, 2003, 02:21 PM: Message edited by: Mark ]

Re: Best Engine for a 20ft CC
 

I bought my 20'Ma w/ 200 Mariner Flew !I have a 150 Merc.(carb.) still Fly's (Closer to the water)!give or take around 43.Any where in this range if You have a Ma their a lil heavier.Had to find the right Prop to get Me outta the hole & run.Mirage II .
Scream'n Reels' [img]images/icons/cool.gif[/img]

Re: Best Engine for a 20ft CC
 

Don't know about the older models, but my 2001 Seacraft sports a 130 hp Honda which weighs in at 500 lbs+, making trim tabs a must to get the bow down for a smooth ride [img]images/icons/smile.gif[/img] .

Re: Best Engine for a 20ft CC
 

Have a 20 cc. 1970 w/ t top I had 3 repowers in the past 18 years 115 yam. 120 loop charged evenr. and now on 150 carb evenr .boat has orig 20 in trans. for size and weight of 150 . I found it best. on 450 hrs now . I do lots of trolling out to 25 mi offshore ,plently of power .and price of new 150 carb not bad,, try to find a new leftover at end of season....Joe R. Susie II

Re: Best Engine for a 20ft CC
 

So i Guess 580 pounds for a motor would not be too much? Also i am going to raise the transom 5in does this factor in to the equation
thANKS

Re: Best Engine for a 20ft CC
 

"Does raising the transom 5# factor into the equation?" - NO, raising the transom does not affect how high your floor is relative to sea level, which is the real issue.

580#'s on a SeaCraft 20' without a floatation bracket? - makes my feet cold just thinking about it.

Re: Best Engine for a 20ft CC
 

Meads,

For an outboard, I like the a Suzuki 140 4S.

For an I/O, I like the Cummins Merc 1.7 (120 HP)Alpha. At just over $9,000, and 650 pounds, It may be a tad heavy, but you won't be re-powering anytime soon...

Re: Best Engine for a 20ft CC
 

I am in the process of restoring a 1974 SF20. After much research, I chose a Merc 200 EFI. Weight is very much a factor on this boat due to the close proximation of the deck and the actual waterline. Also, I have had this boat powered by a 135 Evinrude, 175 Mariner, and a 200 Johnson. 200 HP is ideal for me. The weight of the new Merc 200 EFI is the same as the 150 and I like the extra kick of a 200.

Re: Best Engine for a 20ft CC
 

I am redoing a 1970 20' and will be using one of Potters brackets and a 225. It should do over 50 mph.

http://www.hermco.net/myseacraft/msc15.jpg [img]images/icons/grin.gif[/img]

Re: Best Engine for a 20ft CC
 

well that is what I was thinking either a 200 mercury or a 150 yamaha four-stroke. Probably going to go with the four stroke just because of the ease of maintinance and the queitness.

Re: Best Engine for a 20ft CC
 

I have a '74 20CC. Just repowered to a Yam 200 EFI. Went from a OMC 150. The 200 makes the stern sit slightly lower - but it was already somewhat marginal. I could have got the 150 Yam HPDI for the same price as the 200 EFI and I opted for HP over fuel consumption. It is a 50+ mph boat with the 200, but I wish I would have put the 150 on instead (for better fuel consumption (2x) and less weight). (50+ can get a bit sketchy.)

Re: Best Engine for a 20ft CC
 

The ideal engine probably depends on what the owners primary objective is. If fishing is the main goal, a 135-150 is more than adequate. However, if the goal is to see the outer limits of how fast a 19'6" fishing boat will go, a bracket with positive floatation and twins would definitely make it go faster.

Go to any inland lake and watch the bass boys drive by with their glitter-painted boats with 250's on the tail and determine if that is how you want to get from point A to B [img]images/icons/smile.gif[/img] , If so, more is better.

Re: Best Engine for a 20ft CC
 

QUESTION FOR HERMCO ON THE 20 CC'S THAT i HAVE SEEN WITH A FLOTATION BRACKET THEY SEEM TO SIT REALLY LOW IN THE STERN. ARE YOU CONCERNED ABOUT THIS? OR ARE YOU DOING SOMETHING TO COUNTERACT THE BALANCE BY ADDING WEIGHT UP FRONT SOMEWHERE?

Re: Best Engine for a 20ft CC
 

ideal engine on 20' if not raising floor or adding floatation bracket? - the lightest one you can find.

Re: Best Engine for a 20ft CC
 

I just installed a Evinrude 175 DI on my 76 20cc. I was going to install a 150 DI. With a 4 blade 17" prop it is turning 5600RPM and is running 55 mph. I have found at 45 mph the boat starts to walk and at 50 it really shakey.If I had to guess a 150 DI should push the boat between 38 and 44 mph. I would not even think of putting on of these engines on a 20" transome. I raised mine during the overhall. As for the water problem I install the plugs when I step in the boat and pull them when I tie back up. By the way did everyone see the Evinrude won the JD Powers Award taking 1st place for there Evinrude DI 2 strokes beating all the other 2 stroke outboards.

Re: Best Engine for a 20ft CC
 

If I could choose raising the transom from 20" to 25" or raising the floor 2", it would be no contest. With the original floor, you're feet are going to get wet no matter what the transom height. With the raised floor, at least it will drain...

happy engine shopping [img]images/icons/smile.gif[/img]