What performance change will I see by making my 12 inch wide sponson pads wider by 2 inches on my 225 Pro Max powered tunnel ?
Increasing pad width increases the aspect ratio of the hydrodynamic lifting surface, making it more efficient. Going from 12 inches to 14 inches could change the AR from 1.0 to 1.3; which will generate 5% more sponson lift. This translates directly into better acceleration (maybe 1 second improvement accelerating from 10 mph to 70 mph). You should recognize, however, that handling could be negatively impacted, especially in heavier water conditions. It all depends on the specifics of your hull design and setup, of course.
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- What performance change will I see by making my 12 inch wide sponson pads wider by 2 inches on my 225 Pro Max powered tunnel ?