Does a Hydrofoil & Jack Plate HELP? 20HP Tohatsu (Mercury) TOP SPEED TEST on 1448 Jon Boat
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- เผยแพร่เมื่อ 27 พ.ย. 2024
- Hello guys, thanks for tuning in to another episode of Fishing Is Therapy! In this episode I will be performing another in-depth speed test on my Tohatsu (Mercury) 20HP Outboard EFI Long Shaft 20in on a 1448 Weldbilt Jon Boat after installing a vance manufacturing jack plate and an SE Sport 200 hydrofoil. .
I hope that you find this video useful and therapeutic! Because………. Fishing Is Therapy, Get That Therapy Boyyyyyy!!
#FISHING IS THERAPY!!!!
Please LIKE, SHARE, COMMENT and SUBSCRIBE if you VIBE! - บันเทิง
Great video here man!!! Im 210 and noticed when I sat in the center while driving(awkward) my buddies side console jonboat picked up 3-4 mph, so my new 1436 is going to have a small custom center console instead of the side console they make for it. Heres what Ive learned in 35 years of rigging boats: Jackplates are great, start with cav plate even with the bottom as your center point and youll be able to adjust. A hydrofoil will plow and slow you down anything below even with the bottom, they really are only good to improve holeshot and reduce stern dig on takeoff so you dont bottom out in shallow water. Jackplates and hydrofoils fight each other unless youre jacked even with or above the bottom of the stern. Another thing is small outboards dont always have any steering offset turn fin which means some of your thrust goes off to the side a bit. Also put a little more weight up front if you can, what really limits jonboats is everything that ends up in the stern being hard to overcome with little weight in the bow. Once you get all that right then choose a pitch that works for your setup and needs. Tight lines brother!!!
Thanks for sharing your wealth of knowledge. I will try your tips. I have been thinking of removing my hydrofoil, as it has not really improved anything but maybe holeshot. I appreciate you insight.
@@fishingistherapy my pleasure, its stuck in my head so its good to let it out now and then lol hope you get her perfectly dialed in!!!
@DCFloridasport 🎣Thanks, Im glad you shared it, means alot.
I didnt realize the pitch made such a difference. I'm glad you mentioned startup power instead of just top speed. Thanks for your experimentation!
Glad you found my experiment useful, it is very interesting how a change in pitch drastically improves or reduces overall performance if an outboard.
I bought an aftermarket power trim for my 25hp which have on a 14’ Carolina Skiff and it made an incredible difference on the boats performance. Allows you to trim it down when you need to pick up two people and then trim it out to get that optimum top speed performance. I’ve seen 30mph out of mine and run 27-28 with me and my wife in the boat. Panther is the product I went with from BassPro. Around $600 I believe it was. But I feel it’s worth the money if you’re using your boat a lot like I do. I’m on the coat though and I use mine to run really shallow back waters. So trim is almost mandatory for me. Great video by the way. Very detailed and well done.
Thanks glad you enjoyed the video. Yeah I'm thinking that a 25hp 30hp would really help with performance. I have purchased an on-the-fly adjustable Jackplate and it has helped alot, still seeing about 23 mph by myself, not sure why I'm not running faster even when by myself or while adjusting the height while underway, I can only assume I need to go to a 11 pitch prop from my 10 pitch or increase the horsepower. The boat I plan to purchase in the future is a Carolina Skiff, I love the layout of those boats.
Thanks for putting so much effort into the evaluation. It was very well done and much appreciated.
My pleasure, glad you enjoyed tbe video.
Love your attention to detail... thanks for posting
Means alot, I appreciate that. Thanks for watching!
Good analysis and smart approach to your tests. Search some forums on weight balance for that boat. You may be able to redistribute the fuel tank and battery for some improvement. Also, replace any wood with aluminum sheets. Another option is to add the transom tubes on each side. Good job. I have the 20 hp and worked on similar performance ideas. Good motor and extremely fuel efficient.
Thanks for watching and for providing insight! I will look into forum specific to my boat. Thought about moving fuel tank and or battery forward but it would take floor space up. How fast does your 20hp push your boat?
Nice to see someone take the time to learn their boat. Liked and sub'd.
Yes indeed. Had to put in the time! Thanks for watching and subbing! Means alot.
My trapper topper 1542 2018, 25hp evinrude 1989 10.8" X 10p,stick steering 650 lbs one person runs 23 mph no fin no cavitation trim hole 2, trim hole 3 with 10.3" X 12p cavitation if WOT after 22mph. Just installed a DAVIS INSTRUMENTS DOEL-FIN 440 TODAY! testing it out with 2 people total weight est 850lbs. It has run 22mph without a trim pin 📌 with 2 people with the 12 pitch prior my tuning it up with new plugs wires electric choke water pump resetting the idle timing.
Wow I would think that 25hp would push harder at WOT. Its a process trying to get it all dialed in. But thats what keeps us sharp and constantly trying to improve, its a fun process. Let me know how it runs with a heavy load or two buddies.
I completely missed the fact you were running a long shaft in the beginning of the video. But I bet you'll get more top speed by a long shot if you switched to a short shaft and a jack plate
What's the difference between the short and long shaft in performance at 20hp?
@@fishingistherapy having more shaft in the water adds a bit more drag. I run flats boats/skiffs. Ideally want your cav plate hanging right flush with the bottom of the boat for optimal performance/speed. Having hyrdrolic jack plate coupled with electronic tilt and trim let's you get the most out of it if possible. I do still love how detailed you were with all your tests you've done. But if you're looking for performance, that's what I've found to be best with smaller 14-18' skiffs and Jons
The electronic tilt trim and hyrdrolic jack plate let you get that adjustment on the fly. You lost a bit of speed with the hydrofoil, but gain stability and plane better given your application. You're working with what you got and that's respect my dude 💪🏼
@TheCaptainkyka That makes sense, I agree. Thanks for providing that insight.
The RPM display is illegible. I like the experiment. Good information. Whats the price tag for that fancy jack plate. Can't wait to see you put a bigger motor in that boat
Thanks, the jackplate was around $400 with bolts, washers and backing plate. Yeah im thinking about upgrading to a 30hp. What do you think is a good hp outboard for this setup?
@@fishingistherapy not sure if you mentioned the length but it looks like a 16ft jon. I've seen other tubers get over that 30 mph with a 25 hp ob Probably boat only with no equipment. 30 hp would be nutty but real fun and super fast. Heck you might even see upper 30's.
I agree, I have a 14ft, but a 30hp would be alot by myself at WOT, my major concern is by myself with my 10 pitch prop I see 23 mph which is great, but when adding a buddy its 18-19 mph but with 2 buddies or my wife an kids the motor struggles to reach proper rpms and barely gets to 13-14mph and starts making struggling noises and skipping sounds. If I could solve that issue with a 30hp I would be more then pleased. But maybe a 25hp could add the addition horsepower I need.
love your content bro new to ur channel keep thevids rollin trying to get my first boat found ur channel looking for mods
Thanks bro. I appreciate it, glad you enjoy the channel. I'm going to keep the 🔥 rolling out.
i would try a 4 blade 11..4 blade on those small displacement motors really provide bow lift better
Im going to try it, I appreciate the advice. Any performance boost I can get will be beneficial.
Do you think there will be much difference between 11.5 vs 10 pitch prop? Mine came with 11.5....I ordered 10 pitch for faster planning, on 150lb inflatable, but I wonder if itll be any difference, or if I should of went with 9 pitch, also are you still using hydrofoil? Or did you removed it? Is hydrofoil worth it?
I think every pitch you go down helps alot. I went from a 10p to a 9 pitch when I have a heavy load and it helps me get out of the hole and plan faster. I think going from and 11.5 to a 10 will be a difference. You will definitely see you rpms change. Also I still run the hydrofoil. I saw a stern rise with a heavy load after install and it helps me turn much better and have greater control. I didnt see mph increase I believe the pitch of the prop and weight distribution along with outboard horse power have more to do with speed.
@@fishingistherapy awesome! Thank you for the info!
😃👍👏👏👏
💯Thanks for watching. I appreciate it.
You had a chance to check with your buddy? Which prop would you recommend for 2-3 people? Also do you buy tohatsu prop or solas would be fine also? Thanks
Yes, with my specific setup, a 9 pitch prop is recommended which is what I have been running but I still feel my 20hp is ama little under powered to push 3 ppl well, my outboard gets sluggish and barely hit 14mph with 3 buddies, but with 2 buddies im at 18-20 mph depending on wind. I buy the Solas props and they havr been very reliable.
@fishingistherapy thank you, thats what ive experienced with my 20hp on inflatable. I was already thinking to try 7 pitch to see if it can pull 3 people, do you think 7 pitch will make a difference in planning with 3 ppl?
@fishingistherapy another qs, one of tohatsu recommended props is 9.2x7 all i could find was 9.25x7 ...do you know if .25 makes a difference?
Yes the 7 pitch will get you initial power and hole shot to get on plan but you will lose rpms and top end speed, but I believe the 7 pitch could work well for 3 ppl.
I think that refers to blade pitch angle and shouldn't make a difference. I use 9.25 on my outboard and I dont notice a difference, so you should be fine.
Move your motor up until the cavitation plate is level with the bottom of the boat. On my boat it has a kick plate that has about 4inchs of setback and my cavitation plate is 2 inches above bottom of boat. You want the hydrofoil just above the water when your on plane!
Thanks for the insight. Will ensure that I take that into account. That's very helpful
Exactly: level with if transom mounted, 1-2 inches up with a bracket is the default.
Okay, I will try that. I have it exactly level and above and below, seems I have to change it based on how heavy my load is. The 20hp struggles with 2 or 3 ppl.
I have a small inflatable dinghy 9.9hp 2-stroke and I am trying to get maximum pulling/towing torque while starting in the water. I dont care about top speed, but I need grunt power at startup. What type of prop might you recommend ?
To make up for the initial flex that an aluminum prop will produce I recommend a stainless steel prop. I also recommend going down a pitch or two to increase "hole shot" which is what your referring to as pulling and towing power. Not sure what prop you have now, but from my understanding you go down in pitch lets say from a 10p prop to a 9p prop. When I have a heavy load I use a 9p and when by myself with a light load to increase top speed I go with a 12p.
Thumbing up 👍
Appreciate you!
Nice job. Did the hydrofoil slow you down at all?
No I don't believe the hydrofoil slowed me down at all. I didnt see a speed drop but I did see improved handling while turning and jumping waves from boaters.
@fishingistherapy did you have to change the trim position with it on vs off for optimal performance?
@sidneybarkowski2955 Yes I played around with the best trim level. Currently running in the 3rd trim level.
What size is the boat? That thing should run 25 plus solo easily
1448. I have been trying to dial it in, I expect around 25 plus, but he max I have seen by myself with the 10p is 23.5mph. Any advice?
@fishingistherapy boat looks little heavy- Move your seat little more to center - Your body weight causing more drag pressure on starboard side - Get lithium motorcycle crank battery- Run 3 gal. Vs 6gal fuel tank- - Distribute gear weight best you can more forward for the best level of hull - Good to look at mud or residue line on side of your hull- Ic boat & trim is set up properly Yiu shouldn't need the fin which is extra drag- Back of boat too heavy - Deep cycle battery & fuel forward- You want cavitation plate about 1" or so above bottom but have to experiment- Use straight edge - These are just some ideas to consider - When I look at your boat It looks stern heavy & off center- Remember though it's only 20hp & that's fine but If I was going to power this size John I'd go for 25hp which would give more leverage for carry weight, speed - Good Luck
Thanks a ton for the feedback and insight. Honestly I have tried almost all of the suggestions you provided. I really believe I need a 25hp for this boat. I will move my seat in its sliding base more forward. And look into a lighter battery but it just doesn't feel like there is enough power especially with a buddy or 2.
I wonder if you could’ve stuck a 30 or 40hp on that boat. Probably could’ve got to 30mph with those easily.
You need to level the cavitation plate with the bottom of the boat to bring down the bow. By level i mean level with each other not the height. I get 24mph out of my 14” boat with a 15 hp set up this way.
BIGG OL 4-10 YOUNGBLOOD 👊🏾💥
Always appreciate you watching!!!💪🏾💯
@@fishingistherapy 4SHO MAYNE
I like that....let's get that therapy boys lol
Yes indeed, Fishing is therapy and being on the water in nature is our natural therapy...get that therapy boooyyy!
nice!
Glad you enjoyed the video
Need to lift motor up, hydrofoil shouldn't be in water at speed
Thanks, I have since added a jackplate I can adjust while underway to resolve this issue.
Hey it was a great video with cool insights, just out of curiosity how heavy is your boat with all the gear and stuff?
Thanks, I appreciate you watching. Honestly I dont know the exact weight. I tried to estimate the weight in a prior video. I would love to know how people weigh their boats without guessing all the weight of the accessories and mods. Do you think people run it through a scale? Check out this video to see how I got this estimate. th-cam.com/video/lNSNHzKGrEs/w-d-xo.htmlsi=jshlxJnGR-NYbk6N