What hp on your 20
 

Just curious, what HP do some of you have on your boats? I am now running a 225hp Yamaha OX66 on mine, this is my third on my 87. I noticed that it is riding lower at the stern with this motor than the first one I originally had, a 1986 Suzuki 140.

Tommy

When I bought my boat in 1996 as a I/O 165 hp, in 2000 converted to OB via Stainless Marine bracket and 175 Yamaha, then replaced with another 175 Rude and sold it that way in 2007

I've owned a couple and fished in several more;

1972 with a 1973 135 Johnson = 36 mph
1983 with a 1983 150 Johnson = 45 mph
1972 with a 1972 85 Johnson = 28 mph
1977 with a 1982 200 Evinrude = 49 mph

a fishing buddy had a 1977 model with twin 70 evinrudes, and I never saw it make more than about 34 mph but it was a nice running boat.

74 Cuddy w/an 04 Honda 150... :nice:

Best top end has been 42 @ WOT @ 6000 RPMS...cruises 32 mph @ 4400 rpms...great on fuel at that speed...that w/a 3 x 15 1/4 x 17 SS Power Tech prop...

i have a 78 cuddy with 225 Johnson 15 X 19 Stainless prop

I have an '83 with a 150hp Mariner ~45mph.

I have a 1990 cuddy with a 190 h.p. Mercruiser (chevy) 4.3 litre V6 I/O. It tops out about 40 on the speedometer.

1994 V21 Cuddy
2003 Yamaha 150 2 stroke
14 1/4 x 17 prop
42 mph @ 5200 rpms

1979 cuddy with a CC conversion. Transom bracktet on the stern had a 225 ficht

top was 49 mph with a 19" viper

i have a johnson 140 year 1982 on my 78 and i top at 31 mph cruise around 26

'85 hull, '90 evinrude 225, 14 1/2" X 19" stainless prop, top speed still unknown.

76 cuddy with a 83 Johnson 175 HP 41 MPH (GPS)

2 hunnert. She did 50 mph first time out. Cruises around 30.

Mine's a 1986CC with original Merc175. WOT-6000RPM @ 45MPH (GPS).
Cruises at 5000RPM around 34MPH. Usually don't ever go over 38MPH. Don't want to buy a new motor just yet!

I have 1975 V20 with a 1994 200 Offshore Mercury. She does about 50 mph WOT.She will cruise about 30 to 35 mph.

86 cuddy with 86 Yamaha 150

'78 Cuddy with 5.0 Mercruiser (305 Chevy). Going by my GPS I can get roughly 41-43 MPH at WOT depending on current/wind.

89 V, '01 Yamaha 225. Love it.

1990 cuddy 1990 200 johnnyrude 5600 rpm wot 44 mph on gps 15x17 prop

86 Cuddy with 98 carbed Yami 200. Easily over 40mph, I have too much motor I think. I would switch to a 140 or so four stroke.

1984 Cuddy, 2003 Johnson (Suzuki) 140 4-stroke. Runs 40 mph wot and sipps gas, I average 5 mpg.

What hp on your 20
 

74 Hull 82 Merc Black Max 150 40 MPH WOT

I have an 82 V20 cuddy, got it a few months ago with 73 Johnson 115, not sure on prop. Maiden fishing trip (after sea trials) with total 4 adults, 40 gal fuel, more fishing equipment than most charters own, 2 coolers full, and the usual safety gear. Went out of Ponce Inlet a few weekends ago, the Atlantic was like glass, top speed on GPS 26.3 mph. The next weekend sold the 115 and just purchased and mounted a 1998 Johnson 225 Oceanrunner. I can't wait to get this beast in the water now! I don't see myself going out with less than 3 people on the boat to fish, and since they help chip in for gas its worth it for the power. I didn't want a 2 hour trip to get to some blue water.... that's half a day round trip. MORE TIME TO FISH!!!:beer:

I'd love to have 225 too, but concerned about additional weight on stern...how does it sit in the water?...are the scuppers still above surface?

Welcome to the madness here...:party:

Everyone loads these boats so differently. My old 72' model seemed to perform well with a 135 Johnson.....but again it was a monster motor in 1973. Also, we didn't even have a bilge pump or radio, our motto was there's no more efficient bilge pump than a scared man with a 5 gallon bucket! A V20 performs well with a wide range of power, you decide how to load it down. I love the way the flare keeps the bow from stuffing into an oncoming wave at the last moment.

weight
 

Check out the PIC of my boat with the Yamaha 225. It does ride a lot lower in the stern, I have to shift weight up front to even it out, if everyone walks to the back the scuppers go under.....

Reworked 1983 20cc w/t-top 200Merc 2.4 liter carb on bracket 17p 47.9 on GPS. Not concerned about weight. Scuppers were done away with. No longer a self bailer. Just finished this 10-year project and hope to repower with a 250 3-liter in the fall. :sly:

The weight of the 225 certainly contributes to her sitting low in the stern, but it does seem to be a problem for a number of the V20's even with 150's on them...

A 150 two or even a four stroke should not be any trouble scupper wise, unless you have excessive weight in the back, or saturated wood or some other abnormality.
On the end of a bracket it would likely be a problem though.
All of them will bob and weave in a sea drifting with the scuppers being dunked, that is normal.
But making them non self bailing seems odd to me. Unless you have arranged some super double bildge pump arrangement to compensate for it.
The need for speed can be compelling I guess.

Speed wasn't the reason. The extensive redesign with the motor bracket gave me another 6 sq.ft of useable deck space. Because we were unsure of the at rest water level with a full transom and the bracket we omitted the scupper holes. I have the double automatic bilge pumps as you mentioned. Shifted a lot of weight forward in the boat to compensate for the bracket and the results were awesome. At rest we could put the scuppers back in but I hate having water on deck when heavily loaded.
That is what you risk when you modify the original.

Havent got it in the water yet but the project boat I got has the mercruiser 470 I/O which I beleive is a 170 HP motor. Does anyone have any specs on that motor and speeds?

Do you have any pics of the conversion?