Prop Question - Page 2

chumbucket · #11 03-13-2004, 10:15 PM

I'm not running a four bladed prop on this boat. I like the way it performs as is. 150 HP Yammi swinging a 15"x19" I believe (a mind is a terrible thing to waste. Mine's wasting away each and every day. Right MJ? ;D) It could be a 17" pitch. I forget now. I know I have one of each and whichever one isn't on the motor is a spare on the boat.
Interesting fact: Many of the props Yamaha used and I believe still using for saltwater applications are steel. Not stainless steel. Steel. Mine is. No rust either.

macojoe · #12 03-13-2004, 11:34 PM

I have a 3 blade Hustler Prop. And I like it!! My boat always did good with a 15 and now I have the 17. The nice thing about the hustler is that I can reprop foer $60 as you never have to change the hub.

#13 03-15-2004, 03:47 PM

Thanks eveyone for the responses, but is anyone using these four blades on an I/O. If so what size blade and have they improved the performance a lot.

Thanks
John

chumbucket · #14 03-15-2004, 07:34 PM

S_G, I should have been clearer in my responses. At the time I used a four bladed prop, it was on a boat with an I/O. Very heavy boat and it was a dog to get going so, I was told to try a four bladed prop which I did and yes, it did help with performance. Much better in getting the boat up on plane quicker therefore improving my fuel consumption a little.

#15 03-16-2004, 01:16 PM

Thanks again Chumbucket,

Sorry to keep bothering you, but i have one more question ( hopefully) ? Do you remember the size of the four blade prop that you used?

John

chumbucket · #16 03-16-2004, 04:43 PM

Sorry S_G, but I don't remember what size it was. It was several years ago and sold with the boat. I used it on a 28' boat that weighed in at around 8900#. So, whatever size I ended up using most likely would not be relevent to your application on a V20. If you need help determining the correct sizing, most of the prop manufacturers offer sizing help on their websites or just call them. When you go from 3 blades to 4, there is generally a diameter or pitch change required and sometimes both. If you have a good marine store local to you, many will let you try them out and return them (provided you didn't damage it) until you get the right RPM's.