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Member
Posts: 238
| I run a 2005 Lund 17 Mr Pike with a 115 Yamaha 4 Stk. with a 17 pitch prop. and with that I run about 42mph and about 5900 rpm which is what the book says my motor shall run between 5500 and 6000. Well I have a kicker on my boat as well so there is plenty of weight back there what would a prop with more pitch do to my performance and rpms. This boat is similar in weight to the pre IPS-2 1775 Pro-Vs if that helps anyone. |
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Member
Posts: 74
Location: Spring Valley,Il. | I have a 2005 1700 lund explorer with a 115 Johnson.I can get 49 mph on gps.The prop on mine is a 21 inch pitch.I bet if you went to a19,20,or 21 you would gain some speed.I think that 17 is way too small. |
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Member
Posts: 238
| Even with a kicker and the extra weight in the back? What is the weight of an explorer? Thanks
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Posts: 794
Location: Elgin, Illinois | I might suggest that you change to a Hustler brand two piece prop for two reasons... One, the props are a little thinner than most aluminum props (very close to what you get in a stainles prop as to "profile") That translates to some flex but you can change the pitch quite cheaply so you can try that 19 pitch for around $90. Also, the benefit of inexpensive reeplacements if you ding one...
You just meight be able to get more RPMs with the thinner prop and up your speed... But it sounds like you are at optimum with that particular prop... So something must change, it it won't be weight because you can't unhang that kicker or change to a lighter main motor so slimming the profile or going to stainless (bigger expense) are the options that I see... hence my suggestion of the Hustler prop. |
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Member
Posts: 1382
| When you go up in pitch you will increase time to plane, reduce your RPM, and potentially increase your top end slightly. You are at the upper end of your RPM range, so you have some room to work. If you are happy with performance characteristics of the prop you have right now I would try out a 19P in the same prop and see what that does for you. |
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Location: Rhinelander | I agree, you will pick up speed and lose some RPM. Usually, going form a 17 to a 19 will lose about 450 RPM and pick up about 4 mph. See if you casn find a shop with test props or borrow one from a friend to test it, if that's possible for you. |
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Member
Posts: 238
| You really think 4 mph? Or is that a guess? I found a 13 1/4 by 19 that I can try so we will see I guess. Thanks for the input but if anyone else has any stories that this will increase my speed I would love to hear them!
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Member
Posts: 1991
| I missed this post, I had Mr Pike 17 02 with a 115 Yamy 4 stroke, the best prop I found after trying about 6 was the Yamaha Pro Series 19p.
It would run at 5800 rpm, at about 44 to 45 mph with great holeshot, 3rd hole up |
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Member
Posts: 48
Location: Beloit | ttt |
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| The prop game is fun to play.. There are alot of assumptions and common perceptions.. The truth ive found is every prop is different and just ordering one that you hear is good doesnt work very good.. you need to try a few befor you buy. Remember your holeshot is far more important then gaining 1 or 2 mph on the top.. In alot of cases if you change to SS prop you will pick up top end and improve your hole shot. There are also alot of things to look at besides pitch. Rake/cup/diameter. My main point is dont just go by pitch. Only use the aluminum if your at a higher risk of bumping into stuff. Take your time and Chose wisely. Your whole boat is driven by this 1ft square unit. Without it you will be stuck at the dock. |
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Member
Posts: 238
| What makes holeshot so important? Does the life of the motor depend on it or what. I dont do much for watersports with this boat, so in all honesty what is the importance of holeshot? Im lost and just looking for advice! Thanks guys!
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Member
Posts: 3899
| I think holeshot is important for good slow speed, rough water boat control. If your boat is a dog to plane, it will not have the throttle response you need in big waves.
For example, if you're out and maybe get caught in some bad weather. The waves are building, and you need to get to sheltered water. You will need to be on the throttle when going up the waves, and back off when you've crested the wave, so as not to spear the next one. Good throttle response is essential here. You also want a prop that stays hooked up, too.
I'll give up a mile two on the top end for the holeshot, and control. |
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Member
Posts: 1991
| With that prop on my boat holeshot was excellent |
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Member
Posts: 238
| Hey moreeyes, How was your steering capabilities? Not bothered by the motor so high out of the water? When you say third hole up you are saying the third hole from the the bottom hole correct? I have the 19 pitch prop and it seemed like it was going to be the prop I need. I do though need to raise my motor on the boat. I was still speeding up when I could no longer trim my motor and I was starting to porpose. My motor is mounted on the very top hole so third hole up in my case would be the next one down from where mine is now. The motor is all the way in the water now. You say I should raise one hole?
THanks guys
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