New prop suggestion, please!

[liver gsp]

I have A G3 1756sc w/ A 25hp Yamaha 4-strk w/ A standard 9-7/8 x 9 prop. Which list on Yamaha's site A speed rating of 15-21mph. I get 20-21.5.<br />My hole shot is fine, the boat gets up fairly easy. SOOOOO, I am wondering if I go w/ more pitch will I be OK??? Will I get more speed?<br />Will I never plain out?<br /><br />What prop do you guys think would work?<br /><br />This is what they list on the Yamaha site:<br />diam/pitch/ speed rating<br />9 7/8 X 8 13-19 <br />10 5/8X 8 1/4 14-19<br />9 7/8 X 9 15-21<br />9 7/8 X 10 1/2 18-25<br />9 7/8 X 11 1/4 19-27<br />9 7/8 X 12 24-31<br />9 7/8 X 13 24-31<br />9 7/8 X 14 24-31<br /><br />Thank you for any help!<br />Scott B.

 

[LubeDude]

Re: New prop suggestion, please!

Its the old saying, "A tach is the most important guage you can have on a boat next to a water preasure guage". If you do not know what RPM you are running, you are shooting in the dark and so are we.

 

[liver gsp]

Re: New prop suggestion, please!

LubeDude,<br /><br />OK OK, I'll make myself get A tach.<br /><br />Then I will be able to find out what rpm's I am turning.<br />Do you agree that TINY-TACH is A good one to get?<br /><br />That is what I am going to order.<br /><br />Thanks,<br />Scott B.

 

[LubeDude]

Re: New prop suggestion, please!

Ive never even seen one, but I hear a lot about them here on the forums, and I have never heard any negative about them. People say they are easy to hook up. You will not regret it.

 

[liver gsp]

Re: New prop suggestion, please!

LubeDude,<br /><br />GOT IT!!!<br /><br />The Tiny-tach works great!<br /><br />I am getting 6140 to 6200rpm's @21 to 22mph<br />That is with the stock AL 9-7/8x9 prop.<br /><br />NOW,<br />What do you think?<br />I am thinking of the Michigan wheel "match"<br /># 022002 9-7/8x10-1/2<br />I should get about 25mph @ approx. 5800rpm<br /><br />Who has the best deals around?<br />Internet or via phone?<br /><br /><br />Thanks in advance you for your help,<br />Scott B.

 

[chippy]

Re: New prop suggestion, please!

Liver,Try E-Bay. I got my High Five for my boat at a great price.

 

[liver gsp]

Re: New prop suggestion, please!

chippy,<br /><br />Thanks for your help.<br />I am watching Ebay everyday.<br /><br />Scott B.

 

[pond monkey]

Re: New prop suggestion, please!

Originally posted by liver gsp:<br /> I have A G3 1756sc w/ A 25hp Yamaha 4-strk w/ A standard 9-7/8 x 9 prop. Which list on Yamaha's site A speed rating of 15-21mph. I get 20-21.5.<br />My hole shot is fine, the boat gets up fairly easy. SOOOOO, I am wondering if I go w/ more pitch will I be OK??? Will I get more speed?<br />Will I never plain out?<br /><br />What prop do you guys think would work?<br /><br />This is what they list on the Yamaha site:<br />diam/pitch/ speed rating<br />9 7/8 X 8 13-19 <br />10 5/8X 8 1/4 14-19<br />9 7/8 X 9 15-21<br />9 7/8 X 10 1/2 18-25<br />9 7/8 X 11 1/4 19-27<br />9 7/8 X 12 24-31<br />9 7/8 X 13 24-31<br />9 7/8 X 14 24-31<br /><br />Thank you for any help!<br />Scott B.

 

[pond monkey]

Re: New prop suggestion, please!

Hey Scott,<br />I have a similar boat with a 30hp honda (they too are 3cylinder 4 stroke engines). This spring I ordered a Tiny tach...they sent me TT226R-2XL and said that it was the correct model. i have not been able to get it to work properly...it reads erractically at wot.

 

[liver gsp]

Re: New prop suggestion, please!

Pond,<br /><br />Mine works great. I bet if you give the folks at DTI A call they will help you out.<br />My motor took the TT226R-2C.<br />My motor is A 2-cyl. 4-strk.<br />Unlike the Honda 3-cyl. 4-strk.<br /><br />Thank you for your help,<br />Scott B.

 

[liver gsp]

Re: New prop suggestion, please!

LubeDude,<br /><br />Can you help me know?<br /><br />I am looking at the Solas "amita3" 9-9/10x11 and the <br />M.W."match" 9-7/8x10.5<br />This should get into the WOT range that I need to be in, correct?<br /><br />Thanks in advance,<br />Scott B.

 

[davejnz]

Re: New prop suggestion, please!

I don't like the Solas alum props compared to my old MM prop.The MM prop has a more swept back rake<br />and the Solas was almost perpindicular(no rake)This resulted with excess cavitaion/ventilation and much slower because i had to adjust my trim holes to the second position away from transom to keep it from ventilating/cavitating.Those G3's are flat-bottom alum boats right?My hull is a similiar 14'flat bottom alum

 

[liver gsp]

Re: New prop suggestion, please!

davejnz,<br /><br />Yes it is A flat bottom, w/ modified-V front end.<br /><br />I think that the M.W. has A better warranty?<br />I have heard great things about the company.<br /><br />Thank you for you help,<br />Scott B.