BIG Question - replace Yamaha 150 HP with Honda 225HP

[Stillrunning]

Originally Posted by randlemanboater

I love my 4 stroke and would prefer never to own another 2 stroker.

That being said, if your 150 is running good, why replace it?

At $4/gallon you can buy 2412.5 gallons of gas times approx 2.5 mpg, you can go 6031.25 miles with your current rig for the price of the new motor. (oh, I forgot oil, like I said, I love my 4 stroke)

I don't think your mpg will be a lot better with the 225 Honda, I've heard that they are a bit thirsty for a 4 stroke, maybe 3 to 3.5 mph. (this from a guy running twin 225's on a 28' Mako CC)

It would take 10 years of running to make up the cost.


That being said, if you want it.......BUY THE NEW MOTOR!!!!! (its only money)

How much better on gas do you find the 4s over the 2s? Lets say a day trip where you would burn 25 gallons with a 2s how many gallons for the 4s?

[cterrebonne]

Originally Posted by Stillrunning

How much better on gas do you find the 4s over the 2s? Lets say a day trip where you would burn 25 gallons with a 2s how many gallons for the 4s?

you cant say all 4's are better then 2's unless the 2's are carbed or efi. it is usually anywhere from 20 to 40% better except at w.o.t.

[THEFERMANATOR]

Originally Posted by Stillrunning

How much better on gas do you find the 4s over the 2s? Lets say a day trip where you would burn 25 gallons with a 2s how many gallons for the 4s?

The 4 stroke is mostly better than a 2 stroke NON-DFI looper at idle and slow speeds. At cruise the 4 stroke is probably only 5-15% better, and at WOT they are almost identical. A cross-flow engine is a wasteful SOB at pretty much any speed over idle to slow cruise when compared to a looper, but a looper burns excess fuel at idle to real slow speeds vs a cross-flow. DFI eliminates pretty all of the down falls of 2 vs 4 stroke.

[cterrebonne]

[QUOTE=THEFERMANATOR;116179] A cross-flow engine is a wasteful SOB at pretty much any speed QUOTE]

i agree whole heartedly with you!! lol

[bigshrimpin]

I think you'll have worse fuel economy with the honda 225 ;) There was someone here on the site that had a 225 Honda on the back of a v20 . . . if I remember correctly the boat cruised at 2.5 - 2.8mpg . . . and topped out at only 45mph. I'll do a search and see what I can come up with.

[THEFERMANATOR]

Originally Posted by bigshrimpin

I think you'll have worse fuel economy with the honda 225 ;) There was someone here on the site that had a 225 Honda on the back of a v20 . . . if I remember correctly the boat cruised at 2.5 - 2.8mpg . . . and topped out at only 45mph. I'll do a search and see what I can come up with.

Refer back to post #4, I posted the link to the old post about the HONDA. But the boat in question is not a V20/V21 in the sense of what most here have. His is an 04 and completely different design.