Power for 20 Master Angler

Trayder · #1 06-26-2006, 03:08 PM

at least a 150?

As mentioned before one member has one with a Suzuki 115 and is thrilled and another has a 130 Honda and I have not heard him complain.

oldbluesplayer · #2 06-26-2006, 04:38 PM

No way that boat needs "at least a 150". I'm running a 20' Seafari, which is a little heavier than the CC, and taller, with cabin and windshield, with an older 115 Johnson. If I read the original post correctly, he's not concerned about top speed, wants a low 20's cruise.

Mine with the 115 cruises easily at 24-25 mph on gps, tops out in low 30's. Generally, open sea conditions up here on the North Shore limit my cruise, anyways, I'm often happy to just plod along at 20 mph, and damned glad of the Sea Craft hull and it's sea-keeping capabilities. For my money, at most, I'd go to a 4 cylinder 135 / 140, but would not go up the 2 more cylinders, and added weight, to get to a 150 or above.

But that's just my .02 worth.

Bill

Bigshrimpin · #3 06-26-2006, 05:13 PM

Blues - Hows the fuel economy with that motor?

oldbluesplayer · #4 06-26-2006, 05:35 PM

Big - I can't give you exact numbers, just got the boat last year, by the time I fixed the transom, got it in the water in August, and ran it till the stripers and blues left in mid October, pretty much every weekend - but I have the 47 gal tank, filled it up once, ran it for 8 hours+, chasin fish all over north of Cape Anne, still showed better than 1/2 tank at the end of the day, went out the next weekend without adding any, ran out, trolled around for 4 hours or so, and back in, still showing 1/4 tank - never put in more than 18 gal. for a days trip after that.

They say the old carb motors are gas pigs, and maybe so, certainly my earlier experiences with 2 stroke outboards was that they were gas hogs, but this is a pretty economical, and capable, rig, in my view.

Bill

Ikan Besar · #5 06-26-2006, 06:45 PM

I've heard the numbers for the 115 Suzy are very close to those of the 140. While not the same engine, my fuel consumption with the Suzy 140 and a full 75 gallon tank:

30mph cruise, 4000rpm (WOT is 6K), 5.7 gph according to the Floscan.

I think the real numbers are actually just a little bit better than that as the Floscan said I'd burned 61 gallons of fuel but it only took 58 to fill it up the other day. At any rate, I'm covering more than five miles for every $3.50 gallon of gas.

eggsuckindog · #6 06-26-2006, 08:34 PM

Just my opinion, I had a 115 on my 18 and it was OK but we are talking a 20 MA with a T Top and I personally think it needs more power. Will it get on plane and run sure, just think it would handle much better with more power, top speed is not the reason I say it will handle better. You want the boat getting up on the deeper deadrise of the hull for cruising speed, plus if your cruise RPM is 4800 vs 3800 it will use more fuel, with a 4S that would be offset but thats not why you pay extra for 4S.

alarie · #7 06-27-2006, 09:20 AM

I have a 20 SF with an older 130 Yamaha 2S and this is plenty of power for the hull. I had an old Merc 150 on my last hull, and it went about 44 mph; the new boat does just over 40 mph (38 knots). The T top will add weight and drag, but it should be okay with the 115. There is a guy here in Britsol that runs a 20 SF with a Yam 90 and he has no problems, even though he loads it up and uses it as a ferry to Hog Island.

I think for these hulls, the bigger issue is that you do not want the weight of a 6 cyl engine on the back. I think the ride is much better with the 4 cyl, and the Suzy is a light motor, probably very similar to my 96 Yam.

Peter