I got to test many big engines back to back Single engine configurations only on high performance pontoons.
I am a dealer for this pontoon brand and this was at their dealer meeting. I also sell 3 of these brands of these engines. This just what I took away from short rides 10 -15 minutes per boat. I did not measure speed or any fuel info. I have a passion for saltwater boats ,but these pontoons are fun too. Some of these engine would better suited for other application. Again these are my observations/opinions on these 20-24 pontoons:
1.) 20 ft boat - Yamaha F150 I have run this motor on probably 30 different boats seemed strong, maybe I was expecting it to be weaker after running some high HP and other motor brands that I had not run before great match for a pontoon.
2.) 22 ft boat Suzuki 175 another good match great performing engine did not feel noticeable stronger than the F150 Yamaha (was on 22 ft boat)
3.) 22 ft boat E-tec 175 I really cant tell much difference between the first 3 engines all smooth, quiet, and powerful (for their ratings)
4.) 22 ft E-tec 225 HO Very strong I thought this may be this fasted boat here lightest 22 model (the 24 w/250HO passed me as I was trimmed out full throttle), again quiet and smooth.
5.) 24 ft 225 Honda quiet smooth clearly outmatched by the other manufactures in the speed and torque categories. Noticeably slower than the other 225/250s here.
6.) 24 ft 225 Verado so quiet at idle, felt like an electric boat DTS control box great feel looks like it should be on a $$$ boat. (note- all of the other boats have Teleflex Power Assist standard) Steering was similar. Plenty of power. Boat felt stern heavy with this with engine.
7.) 24 ft - 250 SS Suzuki Again smooth quiet and very powerful. Control box / linkage felt sloppy could have been out of adjustment could be I had just driven the DTS. Boat felt stern heavy with this engine.
8.) 24 ft 250 Pro XS Strong but loud. Boat was fishing model without tall or cover rear area - made loud engine seem louder.
9.) 24 ft E-tec 250 HO This motor is smooth, quiet, and very strong. I think the best suited 250 in this application. Boat felt balanced with this engine.
10.) 26ft -300 HPDI Series 2 Not particularly smooth or quiet. Strong (but I think the 3 250s here would give it a run for its money)
Would liked to have run: F225TLR, 300XS, 250 Verado (this pontoon brand only builds 20 transoms)
AGAIN this is an unscientific for fun only comparison that I observed on these DIFFERENT BOATS (ie. Fishing models, Luxury models, midline models)
I have no agena with this post - I have been here a long time mostly just read - I am not trying to push one brand over another.