Theres lots of turbo-kits, big bore kits, etc available for 4-stroke cars and bikes…. Why isn there an abundance of reliable engine mods out there for my 4-stroke PWC??
Most PWC enthusiasts are accustomed to performing affordable modifications to their 2-cycle pwcs that net significant improvements in performance while having a negligible effect on longevity. They are also accustomed to these kinds of parts and modification being readily available even for newer models. For the first few years that the 4-strokes were been available, and was little more than incidental knick knacks available to increase their performance .. and there are a couple of very good reasons for this. There are a few shops offering more exotic modifications (aftermarket superchargers, re-mapped ECU boxes, etc). However there is little info (and much to be learned) about the long term reliability of these mods in a pwc application. Most of the 4-stroke PWCs have their designs based on popular street bike engine platforms. To be sure, there is no shortage of folks who have lots of experience modifying street bike engines. In addition, there are many folks out there with lots of
