Supra says 13x16 (x1"), ACME says 13x12.5 I have a 89'Supra/Comp 351 closed bow/1500 ballast w/14x14 RH with a reduction gear (Power Plus). Rt now the boat takes about 30-60 secs to plane out and wont hold speed very well. I want less rpm and more torque out of the hole. I dont care about top end at all, only pull at 15-22 mph and dont ever get over 30 mph. What do you think?? Jet

bigger blades equals less top end more low end <BR>they have props called power props. <BR>everytime these people over load their boats with fat sacs they need to reprop the engine or you will over work it and possibly spin a prop shaft. go to a marina and they will set you up with the right prop pitch. Make sure you tell them hom much you boat weighs on a normal day of riding.

Take the advice of ACME or OJ props. Tell them what you are trying to do with that boat, which BTW is most likely propped to pull slalom. <BR> <BR>The first # is diameter, the second # is pitch. For more out-of-the-hole performance you want a lower number pitch. This will RAISE your RPM, not lower it. Careful not to over-rev your engine when you're wide open. <BR> <BR>So far, seems like ACME is right-on with their advise. Sometimes they will take a prop back if it's the wrong size and you only used it briefly.

Take Acme's advice. They are one of our sponsors and we CHOSE THEM for a reason. Great product. These are tested under weight and altitude. <BR> <BR><a href="http://www.acmemarine.com/" target="_blank">http://www.acmemarine.com/</a> or call and ask for Bill.