You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
speed
- Thread starter rzappala
- Start date
We don't have a cd-25 but being on friends cd 25's sounds about right for a light not cruise ready, sea level boat
The Honda 135hp is the same honda accord block 2.4 litre engine that supplies there 115hp and there 150 hp engine
The major difference between the 135 and 150 is the variable valve system on the 150 hp that lets the engine breathe better at the higher rpm's. I'm sure some of the other c-brats with cd-25's will chime in here.
The Honda 135hp is the same honda accord block 2.4 litre engine that supplies there 115hp and there 150 hp engine
The major difference between the 135 and 150 is the variable valve system on the 150 hp that lets the engine breathe better at the higher rpm's. I'm sure some of the other c-brats with cd-25's will chime in here.
rzappala-
Reading through the various threads over the years, the 135 Honda is considered an adequate, if certainly not overpowered engine for the CD-25.
The 17 mph cruising speed on plane without running the engine wide open is a middle ballpark figure for performance.
Some have lamented not having more HP, particularly after loading the boat up for extended cruising or needing high altitude performance. If you plan to do both, especially at the same time, you may want to seek a boat with at least 150 hp, probably 175. Instead of going with the 150 hp Honda, move up to a bigger displacement block with 175 hp, such as a Suzuki.
On the other hand, if you plan to cruise lightly, at mostly sea level, and do quite a bit of displacement speed (5-8 mph) cruising, the 135 hp Honda may be just fine, and use less gas doing it!
It just depends on how you plan to use the boat.
One word of warning: switching a used 135 hp engine for a new 175 at a latter date might cost you somewhere between $5k-$10k, so you need to make the correct choice now!
Hope this helps!
Joe. :teeth :thup
Reading through the various threads over the years, the 135 Honda is considered an adequate, if certainly not overpowered engine for the CD-25.
The 17 mph cruising speed on plane without running the engine wide open is a middle ballpark figure for performance.
Some have lamented not having more HP, particularly after loading the boat up for extended cruising or needing high altitude performance. If you plan to do both, especially at the same time, you may want to seek a boat with at least 150 hp, probably 175. Instead of going with the 150 hp Honda, move up to a bigger displacement block with 175 hp, such as a Suzuki.
On the other hand, if you plan to cruise lightly, at mostly sea level, and do quite a bit of displacement speed (5-8 mph) cruising, the 135 hp Honda may be just fine, and use less gas doing it!
It just depends on how you plan to use the boat.
One word of warning: switching a used 135 hp engine for a new 175 at a latter date might cost you somewhere between $5k-$10k, so you need to make the correct choice now!
Hope this helps!
Joe. :teeth :thup
Chuckpacific
New member
I remember being surprised at how responsive and fast my CD-22 was after I unloaded it prior to putting it up for sale. Equally surprising was how all that stuff took up a full stall in the garage. It's so easy to load it up without realizing it.
BTW, empty I could easily get it on plane with one of the Honda 40s (the other 'up')....about 4500 RPM.
BTW, empty I could easily get it on plane with one of the Honda 40s (the other 'up')....about 4500 RPM.
Welcome aboard Russel and Sheryl,
We have a well-traveled CD-25 with a Honda 135. That is the engine the factory recommended to us when we ordered the boat. Our boat, as it is currently loaded needs about 4400-4500 rmp at sea level to do 17 knots. We are never lightly loaded, and (as mentioned above) the load makes a significant difference. If the boat is lightly loaded, 1/4 tank of fuel (the weight of 100 gallons of fuel makes a real difference in the performance), and one or two people on board... yeah, I could believe that figure.
At wide open throttle when lightly loaded, we can top 25 knots. With our typical cruising load, that drops to about 22-23. Go to a higher elevation (like Yellowstone or Lake Tahoe) and the boat needs a different prop to get on plane.
We typically cruise at 6 knots (and get 5+ miles per gallon) or 16 knots (and get 2.5 to 2.8 miles per gallon). Low cruise for us is 1800 to 2000 rpm. High cruise is 4400 to 4600 rpm.
All that said, we are very happy with our 135 - it has been a great engine. When we were in the deciding stage, I was thinking 2 90s... but the Honda was not available with fuel injection on the 90s at that time. We came to this from sailboats (well, a trimaran, which is fast for a sailboat) and knew what to expect from this motor.
Is it enough motor? For us, yes. Check out our cruising thread and you will see all the places this boat and motor have taken us.
Good luck with your decisions.
Best wishes,
Jim B.
We have a well-traveled CD-25 with a Honda 135. That is the engine the factory recommended to us when we ordered the boat. Our boat, as it is currently loaded needs about 4400-4500 rmp at sea level to do 17 knots. We are never lightly loaded, and (as mentioned above) the load makes a significant difference. If the boat is lightly loaded, 1/4 tank of fuel (the weight of 100 gallons of fuel makes a real difference in the performance), and one or two people on board... yeah, I could believe that figure.
At wide open throttle when lightly loaded, we can top 25 knots. With our typical cruising load, that drops to about 22-23. Go to a higher elevation (like Yellowstone or Lake Tahoe) and the boat needs a different prop to get on plane.
We typically cruise at 6 knots (and get 5+ miles per gallon) or 16 knots (and get 2.5 to 2.8 miles per gallon). Low cruise for us is 1800 to 2000 rpm. High cruise is 4400 to 4600 rpm.
All that said, we are very happy with our 135 - it has been a great engine. When we were in the deciding stage, I was thinking 2 90s... but the Honda was not available with fuel injection on the 90s at that time. We came to this from sailboats (well, a trimaran, which is fast for a sailboat) and knew what to expect from this motor.
Is it enough motor? For us, yes. Check out our cruising thread and you will see all the places this boat and motor have taken us.
Good luck with your decisions.
Best wishes,
Jim B.
RogerJuntunen
New member
In-Cahoots,CD-25, will easily cruise at 17 knots, and will do-30mph here at home which is 4200ft+ elevation at wot. I think the 135 honda is more than adaquate. These boats are not speed boats which, in my opinion, is a different market. Roger
We have a CD 25 with a Honda BF130 which now has 944 hours. We have travelled 11,554 miles, 7000+ of which heavily loaded for cruising, including doing the Great Loop. Our lifetime fuel consumption is 2.52 mpg. Heavily loaded we can reach 24 mph in flat water, lightly loaded 29 mph. We tend to cruise in the teens, and our lifetime average speed is 12.2 mph. We have never felt the need for more than the 130 HP we have, and we have never understood those who say that a CD 25 with 130 or 135 HP is underpowered.
Certainly interesting on how the different boats will achieve different speeds with similar HP. Part is how the boats really loaded and how it is propped. We owned a C Dory 25 with a 130 and I felt that the engine was barely adequate when loaded at sea Level. The 115,130, 135 and 150 HP engines are Honda Accord engines--only a few hundred CC of displacement difference. The first two are the 2.3 L "F" series, the latter two are the 2.4 "K" series, post 2002. VTEC with the 150 hp. But the 135/150 move the 25 considerably better than the 130. The 135 or 150 is a better match for the C Dory 25 in our experience.
Our experience was that we would cruise at about 17 knots (remember the difference between knots and statute miles per hour.) 17 knots is 19.6 miles per hour. The engine was working very hard to do that.
The Boat Test.com came up with the following:
"Top speed for the C-Dory 25 (2006-) is 35.4 mph (57 kph), burning 14.5 gallons per hour (gph) or 54.88 liters per hour (lph).
Best cruise for the C-Dory 25 (2006-) is 15.4 mph (24.8 kph), and the boat gets 4.05 miles per gallon (mpg) or 1.72 kilometers per liter (kpl), giving the boat a cruising range of 390 miles (627.64 kilometers)."
At 4000 RPM: 18.7 Miles per hour 16.3 Knot 3.6 St miles per gallon and range of 346 statute miles.
Now, we all know that these figures are unrealistic for a boat loaded for cruising, with bottom paint etc. So yes, the boat will go about 18.7 miles per hour with a 150 Hp outboard--when the boat is brand new, with very light load aboard! All of the above apparently was possible with a very light boat--but does not relate to how we all use our boats!
Our experience was that we would cruise at about 17 knots (remember the difference between knots and statute miles per hour.) 17 knots is 19.6 miles per hour. The engine was working very hard to do that.
The Boat Test.com came up with the following:
"Top speed for the C-Dory 25 (2006-) is 35.4 mph (57 kph), burning 14.5 gallons per hour (gph) or 54.88 liters per hour (lph).
Best cruise for the C-Dory 25 (2006-) is 15.4 mph (24.8 kph), and the boat gets 4.05 miles per gallon (mpg) or 1.72 kilometers per liter (kpl), giving the boat a cruising range of 390 miles (627.64 kilometers)."
At 4000 RPM: 18.7 Miles per hour 16.3 Knot 3.6 St miles per gallon and range of 346 statute miles.
Now, we all know that these figures are unrealistic for a boat loaded for cruising, with bottom paint etc. So yes, the boat will go about 18.7 miles per hour with a 150 Hp outboard--when the boat is brand new, with very light load aboard! All of the above apparently was possible with a very light boat--but does not relate to how we all use our boats!
T.R. Bauer
New member
My experience with everything I have ever owned that is too much power is really easy to fix, just choose to go slower. Too little power on the other hand, is a real problem to get around. I'd buy the boat with more than enough.