simpson_3
Member
I've been looking to possibly buy another Allison and I have a few questions about engines for the Grandsport and possibly an XB21 prosport (center console). If I'm looking to set either of these boats up for long distance river cruising without having to sacrifice top end speed, what would be your preferred engine for either of these?
I have tons of experience with the 225 promax's and have had great luck with them but my concern is I feel they wouldn't carry the weight well if I'm going to make a long trip and want to carry a bunch of fuel as well as passengers.
I've seen quite a few Grandsports with 250 xs and 2.5xs optis and was wondering what you guys thought of running a heavier engine like that? This may sound crazy but ideally I would like to run a 300X SS and have the gearcase converted to ratcheting. I ran a 300X on a different boat of mine and it's an absolute powerhouse. Weight never seemed to bother that engine and it loved high speed cruising. Not saying a 225 promax isn't good for high speed cruising but the 300x does it better. The 300X weighs about 475lbs and if I run less setback I feel I could make this work. Am I crazy for thinking this? I'm not looking to set and speed records but would still like to be able to run 100. What kind of MPG would a 300X get?
Now for the XB21... what kind of mileage would I get with a 300X? How does an XB21 MPG compare to a Grandsport? Does anyone know how fast an XB21 is with a 300X? I haven't seen many people run these engines on these boats which kind of surprises me. I've only seen 250 and 300 opti's or the new four strokes.
Any info would be much appreciated! Thanks
I have tons of experience with the 225 promax's and have had great luck with them but my concern is I feel they wouldn't carry the weight well if I'm going to make a long trip and want to carry a bunch of fuel as well as passengers.
I've seen quite a few Grandsports with 250 xs and 2.5xs optis and was wondering what you guys thought of running a heavier engine like that? This may sound crazy but ideally I would like to run a 300X SS and have the gearcase converted to ratcheting. I ran a 300X on a different boat of mine and it's an absolute powerhouse. Weight never seemed to bother that engine and it loved high speed cruising. Not saying a 225 promax isn't good for high speed cruising but the 300x does it better. The 300X weighs about 475lbs and if I run less setback I feel I could make this work. Am I crazy for thinking this? I'm not looking to set and speed records but would still like to be able to run 100. What kind of MPG would a 300X get?
Now for the XB21... what kind of mileage would I get with a 300X? How does an XB21 MPG compare to a Grandsport? Does anyone know how fast an XB21 is with a 300X? I haven't seen many people run these engines on these boats which kind of surprises me. I've only seen 250 and 300 opti's or the new four strokes.
Any info would be much appreciated! Thanks