Re: Will changing from factory aluminum prop to SS aftermarket increase rpm's
We gained 300RPM by raising it, and the speed went up too..Now I think you will agree, we are headed in the right direction, No???<br />Lowering the engine as suggested by that dealer is one of the screwiest things I've heard yet..the result would be lower RPM, and much lower speed...not what we are looking for.<br />I'm not a huge fan of the Rapture, I've ran several and the numbers don't impress me when compared to other props of simular cost.<br />I think if you are going to buy a prop, I'd look at a Turbo Hot Shot in 11-3/4X16, or a Stiletto TriadII, P/N 22316, also 11-3/4X16. The Turbo would be my first choice because I know it will hook up with the engine mounted right where it is...the Stiletto may run at that heigth as well..both props are much better suited to the mounting heigth you have.<br />Price range on these is 200 to 230.<br />Another option you have would be to have a prop shop add some cup to your 15 Rapture to bring the R's down.<br />With a "good" prop, it should run relatively well at the heigth you are..you could drop it one and see what ya get, but the aluminum prop isn't going to run as high as the props I've mentioned.