I just bought an 09 eagle 180 with a Yamaha 4s 115 on it. The boat came with a 19 pitch stainless prop and I’m seeing 45 mph at 5500 RPMs. Looking to see if there is anything else I can do pick up a little more speed and see what props work with this hull. Speed is gps and rpms off the tach.
Last edited by Hookedup2; 04-04-2020 at 08:05 PM.
Well, I have an '09 version of the same. I had a 6" jp installed on mine and it really helped free the boat up. Still no speed demon though, get about 47 gps at 6000 rpm. Thinking about trying a different prop also, maybe a 4 blade stern lifting prop, as I have issues with porpoising.
2009 G3 Eagle 180 / 2009 Yamaha F115 / Minn Kota Maxxum 80 / Helix 7 Chirp SI GPS G2N on Bow & Console
Mine doesn't porpoise as it has the tabs on the hull. What prop do you run to get to 6k rpm.
I'm running the original Yamaha K19 Stainless that came on it.
2009 G3 Eagle 180 / 2009 Yamaha F115 / Minn Kota Maxxum 80 / Helix 7 Chirp SI GPS G2N on Bow & Console
That is the same prop I am running the motor is mounted in the 2 nd hole from the top. Think I will raise it one hole and see what happens. Plan on adding a jack plate later on. Which one did you go with.
T-H Pro-Jacker, 6"
2009 G3 Eagle 180 / 2009 Yamaha F115 / Minn Kota Maxxum 80 / Helix 7 Chirp SI GPS G2N on Bow & Console
I had an aluminum 18 foot skeeter(g3) with a Yamaha 115 2 stroke. I ran a ballistic 13..5 x 22 prop. No jack plate and I could hit 50 gps.
Enjoying life in Southern Illinois
18 ft. aluminum boats with 115 will run around 45 to 48 mph in fishing mode. Take out the tackle one guy and set up right you will see 50. There will be exceptions but rare.
I agree. When loaded with 2 mid 40s. The times I hit 50 was me alone, loaded light and the water had to be Perfect.Originally Posted by unknown angler
Enjoying life in Southern Illinois
I have a Tracker 175TXW with Mercury 75hp Fourstroke flashed to 115. I have been toying around with props, and after a 6" Vance manual jack plate I have arrived at a 19" pitch Michigan Wheel Apollo XHS prop at 4.5" prop-to-pad or prop-to-V (currently - will raise the engine soon to see if I can improve numbers). This yields 47 MPH @ 5800 RPM.
I would say, depending on the recommended power range for that engine and it's current mounted height, that you could potentially gain speed by raising the engine. This is easier to accomplish with a jack plate, and the jack plate has additional benefits as well that may improve top speed.
If you added a jack plate and raised the engine RPMs may increase with your current prop, which may allow you to increase in pitch by 1" or so. This may net a small increase in top speed however, so it may not be worth it.
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