The Correct Prop For Your Boat! How To Know!

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Опубликовано:

30 дек 2019

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@BornAgainBoating 10 месяцев назад

Learn To Work On Boats with Step-By-Step Video Courses @ BornAgainBoating.com

@dirtyshirtinfo 4 года назад

Back in the day when I bought my boat and had only passing knowledge of props I learned a tough lesson: The boat dealership doesn't know a thing about props either. I did my own research, talked to Mercury and solved my own performance problems. Astonishing. I've been running a 5 blade Hi-Five steel prop for years on a carbureted 150 Merc, good hole shot and less top end speed. #cleanboat

@TheBeingReal 4 года назад

I went to a 4x4 prop set on my Bravo-III’s dropping 2” of pitch also. Running twin 350 MAG MPI’s. Huge difference in stern lift, less bow rise ans suprisingly less engine noise too!

@georgevidas8256 4 года назад

Hey your video was very informative. I just re-propped my F115 Yamaha on a 22 foot fibreglass cuddy. Went from a SS three blade 17P to an alloy 4 blade 15P to gain better hole shot and more stern lift at a slow comfortable cruise around 15 knots. This helps keep the bow down so I get a better ride in the frequent 2 to 3 foot chop we get in my neck of the woods. Best economy still comes at 4000 rpm (22 knots). I only dropped 2 mph from my previous 36 mph top speed.

@raullopez4617 4 года назад

Happy new year from Spain. Always is a pleasure to learn with yours videos.

@brocluno01 3 года назад

I just went from a 3 blade 21P prop to a 4 blade 19P prop on a 17' family boat (Glasspar, Merc 90CT outboard) and there were three notable differences. You could trim further up with the 4 blade before ventilation, so a bit more top end RPM with less set towards one chine. You have better throttle control at cruising speed. Our preferred is 3,600 RPM and the 4 blade allows finer throttle control around that range. And we come up right now. The 3 blade was Ok, but felt a bit lazy climbing up. The 4 blade is right now : ) Oh, and the top speed did not change, so who cares : )

@maxxgraphix Месяц назад

Same here. 4 blade big hole shot, better control same top end. Fuel economy improved too.

@davidbrymer1230 4 года назад

Great explanation. Now it all makes sense why the previous owner of the Flats boat I just purchased installed a different prop and why the boat hole shots like a champ. #cleanboat

@BornAgainBoating 4 года назад

Suggest Topics That You Would Like For Us To Cover On Technician's Tuesday! www.bornagainboating.com/technicians-tuesday/

@alibilgutay6004 4 года назад

Thanks for sharing such videos for informing us. I also suggest that sharing info about refitting a boat. So we can deride whether buying a new boat or refitting an old one. Thanks...

@kevinhirdes8097 4 года назад

What is the difference between running an outboard verses and IO verses and inboard. I notice boats in Florida run multiple outboards while in the Great Lakes we tend to like I/Os or Inboards. We are looking for a new boat and i really would like a center console with an Inboard so the boat will run flatter through the water with the engine being more forward. Am I crazy? They are very hard to find.

@alibilgutay6004 4 года назад

Born Again Boating i mean does it worth refitting an old boat than buying a new one? Especially wiring and refitting interrior design are a way to have a new boat?

@dumitruuncu5230 4 года назад

@@alibilgutay6004 .....

@micknjo1990 3 года назад

How about a video on how to get a boat on to the pad

@Floordford 4 года назад

Man I need to move to the coast. These boating videos are giving me the fever.

@ben3989 4 года назад

2 things I think are important: 1) Motor height needs to be correct. Many outboards are mounted to low. Anti vent plate needs to be just skimming on top of the water at normal cruise 2) you really should be aiming for the middle point or higher of the max rpm range at WOT. hitting the lower half is marginal and easily further degraded by extra weight

@mikewhite6108 3 года назад

Your spot on with your information. I owned a prop shop for 9 years. And that's exactly what I used to tell my customers when figuring out the correct one to use.

@BornAgainBoating 3 года назад

Thanks for sharing

@gatgolf 10 месяцев назад

I know it's been 2 years, I hope you can still answer. Is it generally accepted that when determining your rpm at wot, you should keep the engine trimmed down?

@legacyserviceprofessionals6955 4 месяца назад

No, you want to trip up to achieve you top speed and top RPM for that speed the way you would normally drive the boat with the amount of weight in the boat that you would normally be carrying. If you propped it for proper RMP with out lifting the trim during your run you would not be able to lift your trim during regular use with out getting your rpm’s too high. During your prop testing, Load your boat and run it just like you would normally be using it.

@ghettohey2388 3 года назад

When it comes to 3 or 4 blade props its simple. You want more speed/performace then go with 3 blade. You want better control, handling, more power, better hole shots with fully loaded boat then go with 4 blade.

@fredself9838 2 года назад

I bought a new Sleekcraft some years back and didn't know much about props. I had my boat at the dealer while someone was making a custom boat cover for it and someone with a boat just like mine told me my boat had the wrong prop. I changed props and it solved my cavatation problem while pulling up skier's and had a fine top end too. Today I have a Glastron I have had just 3 months. After whatching and reading your website I switched to a four blade from three. The boat has excellent take off for water sports. Being a Chevy V-8 Volvo Penta outdrive I remember their advice on the RPMs. Though it will rev 6 easily, For extended crusing keep it about 3,000 RPMS

@molon_labe_arizona 2 года назад

Wow. That was extremely informative. Well done. Will have to watch several times through

@esthersmith1412 4 года назад

Yup perfect timing here too. Doing work on my boat trying to fix steering. Noticed problems with my top end rpm so I know I need to change the prop. Great RU-vid channel guys. #cleanboat

@craigbielsky115 3 года назад

WHAT IF THE MOTOR IS NOT UP TO POWER ?NOW YOUR JUST PUTTING A BANDAID ON A PROBLEM.... MAKE SURE MOTOR IS RUNNING CORRECTLY FIRST

@davesboatingfishinggaming 3 года назад

Interesting video and factual. I've got a 4 blade adjustable pitch prop on my boat. I set the pitch lower for more load ( people), handy to have . One prop adjustable.

@c.shoefish 4 года назад

Awesome video, answered a lot of questions that I had

@markgippy 4 года назад

Great info! Happy new year!

@robertbain5076 3 года назад

Good explanation of how to prop out a boat! Just a comment on 4 blade vs. 3 blade propping. I found my boat would reach recommended WOT rpm early with normal load on board. Also, I do a lot of tubing and kneeboarding with the kids. Since I had headroom, I switched to a 4 bladed prop to get better traction on the water for water sports. Very satisfied with performance now. Happy side effect is better handling, especially in following seas. Having an extra blade in the water really seems to help. Losing a few mph at WOT is well worth it, especially since where I boat is very rarely calm enough to boat at WOT. Not sure what the fascination with top speed is all about anyway. I’ll take the quicker hole shot and improved performance any day.

@barrybebenek8691 3 года назад

Did you change the pitch (down) when going to the 4 blade? Or keep it the same as the 3 blade? 🇨🇦

@bikeislife8405 2 года назад

Couldn't agree more, 4 blade, two pitches down is the way to go!

@bikeislife8405 2 года назад

@@barrybebenek8691 I went down two pitches

@codysmith605 Год назад

i put a nice four blade stainless prop on my tow boat and it cut a good three or four knots off my top speed i didnt like it put the old three back on this is a work boat and an extra four knots is good to have

@Adogsmate4267 Год назад

The fascination with top speed for me relates to cruising speed. I like to sit between 3800 and 4200 rpm for cruise if I can. I'm looking for the best fuel economy and speed at those revs or lower, I don't really care if you beat me back she only gets about two wots a yr. We are about to get a new propeller, I have never tried a four blade, maybe its just what I need.

@carlpourciaux3734 4 года назад

What a great explanation on props... good stuff

@clacker54 4 года назад

I never really thought about weight making that big of a difference. Good info. #cleanboat.

@wuzgoanon9373 2 года назад

Good info. I need to look into this on my own ride.

@joshgtheog3371 3 года назад

i would love to see a video on hydrofoils and what they do for your boat and how they work

@u433274 3 года назад

JOSH G THE OG Permatrim.com. Permatrim plates are the best and I have used most all of the others in my many years of boating. Currently I have one on my 17 foot skiff with a 90 Yamaha and one on my 24 foot Triton bay boat. It’s amazing the difference it makes.

@profthomason 4 года назад

Happy New YEAR Mate!

@ethosmgtowlogos9893 4 года назад

Been working on a proper size for my 5.6 meter RIB, thanks for the help! #cleanboat

@everythingoutdoors492 4 года назад

that is good information because i was just looking for new props

@benjigans1419 4 года назад

I have three bladed Mirage plus on my two Mercury Verados. Very useful information, thank you Born Again Boating! #Cleanboat

@robertchandler5055 3 года назад

you are killing me smalls ...its late december 2020 and you are talking about hope your Christmas was ok i really thought i missed christmas somehow!!!!!

@alanadams9686 4 года назад

The manufacture/dealer done an awesome job on propping out both our pontoon boat and bass boat. Didn't need to change anything. #Cleanboat

@BornAgainBoating 4 года назад

Congratulations @Alan Adams you're this weeks winner! Shoot us an email or a DM with your shipping info and we'll get your cleaning supplies sent out! Congratulations and thank you for your support!

@arfrunningbear7022 2 года назад

Two friends had identical bass boats and motors, one had a three blade prop, the other had four blades, hole shot was identical, four blade prop was one MPH faster.

@simulatedpilot3441 3 года назад

Ahh spun mine today on the dirty James River relaxing waiting on Towboat lol

@flash521 3 года назад

Thank you for the info. Just purchased a 175 HP Suzuki for re-powering a 2100 CC Sea Pro (2004) for fishing on the Sea of Cortez, BCS. They give a standard prop with the motor. Before it had a 140 HP Suzuki which I sold. The boat is rated for a 200 HP. I will start the standard prop and hope it is a good match. You provided enough information I can kind of gauge if the prop is functioning well. Like your channel allot.

@BornAgainBoating 3 года назад

Good luck!

@brendanmihalache3670 3 года назад

Well that makes so much more sense now thank you for the good video

@bobuncle8704 3 года назад

So well explained and very informative. 👍👍

@markrobbins9552 3 года назад

I think(from watching this) I might finally understand something that's been puzzling me for some time. I have a 150hp mercury on a 20ft wellcraft w/a 4 blade prop. That was the setup when I got it and haven't changed it. Never used 4 blade before, just assumed it was like airplanes (to help balance ). Don't remember any other boats being so twitchy. Better at pushing back at waves but before you make any significant speed change warn the passengers. Never had one that practically jumps out of the water and lands on a plane like this one does. Thought it acted more like a ski boat than a fishing boat. I suspected either the prop or the development of mental illness. Thanks for the clarification, I feel better.

@vincenttrapani6331 4 года назад

#cleanboat very informative I run a four blade on my twin 300 verados after watching your video my motors are running in the right range keep the videos coming

@saliaccarino7140 4 года назад

Great video. I had to get the height of the engine right before I changes out props. My engine was too low. #cleanboat

@jrtonka19 4 года назад

#cleanboat..awesome video cant wait for the 2020 videos.happy new year!

@delta182 4 года назад

#cleanboat ... whole shot is my pick..Happy New Prop everyone

@boscotom3508 3 года назад

Now I know how to race thanks great tip

@8180634 4 года назад

Great videos! Would you please consider doing one on descaling an outboard, such as by flushing with Barnacle Buster or any of the other similar chemicals, or whatever method you think works best?

@dwightbernheimer331 3 года назад

Let's stop all the bullshit... in today's buying Market most dealers are going to make you buy two or three props to get it right they're not going to give you $500 props to try... 80 years old mom had me on a boat before I could walk LOL 'Nuff said!!!... thanks for posting

@wesgrindstaff79 4 года назад

Good video, but one point you described incorrectly was about the prop vent holes. These are to allow for exhaust gasses to escape around the prop during holeshot to allow the engine rpms to increase. As well as having little to no effect once on plane.

@gregbaugus3286 Год назад

Great information. Ty much!

@victorhs258 2 года назад

Thanks, really good explainer.

@stinkfist57_____26 2 года назад

I really appreciate the fact that you use the proper term, "engine".

@stinkfist57_____26 2 года назад

@@SeanPennII incorrect sir.

@miguelbruguera2603 3 года назад

Music to ears thank you boss

@krisz2270 Год назад

So helpful, i am glad i found this video. thanks

@jackfarrell4727 3 года назад

Great video thank you for the interesting information

@georgeandkatherinedrager3705 2 года назад

Always good info

@NM-eo1xd 4 года назад

Great vid 👍🏻. I had a major issue with ventilation as my boat has a 20” motor vs the required 25”. The 3 blade aluminum prop would ventilate real bad as soon as the boat came on a plane, and since my motor was already installed on the lowest setting I had 4 options: convert my 115 mercury to a 25”, cut my transom and drill new holes, add an engine bracket, or changing to a 4 blade SS prop with some decent rake. Swapping from a Black Max 3X13X19 prop to a Solas SS 4X13X19 was my solution and has eliminated 95% of my ventilation issues. Boat runs perfect now, comes up on to a plane real fast and my top speed has gone from 33mph to 46mph. #cleanboat

@edwardnelson6 4 года назад

N M What kind of boat? I have a 115 Mercury 4 stroke, on a 19’ Mako Skiff.. Stock aluminum prop, thinking of SS.

@NM-eo1xd 4 года назад

edwardnelson6 Hi It’s a Sportsman -Island reef 19ft. I already had the motor (2013 model) and the dealer said that the 20” motor would work great with that boat. So bought the boat from Florida and shipped it to HongKong, then found out it was too short, and that’s how I ended up going with the 4 blade SS. I would recommend the switch to a 4 blade SS for overall performance, but if the standard one u have works well then it might not be necessary to change. Would be great if u can test a prop before you buy it allowing you to make a “PROP”er decision.

@seanwolfe8046 2 года назад

Great video! I know this was a prop subject but you failed to mention dole fins can solve out of the hole issues without changing the prop. I do say, they are ugly and lower your top speed but can save trial and error time. Haul out fees are rough.

@MrRicosueave 4 года назад

#cleanboat, I watched this video 5 times already, and probably will several more, this is a quantum science test almost if you take in consideration all the variables!! But you guys did a good job dissecting the subject in my opinion.. happy 2020 by the way !!!!

@alexpb9 Год назад

Nice video. Thanks. Just taking a chance, and taking this same chance on a lot of forums as well. I have a 1970 Mercury 1350. Finding a prop for this engine is a headache and a half. It's got a 3 blade prop on it now, but would love to go 4 blade on it. It does feel like the current prop I have is a tad to big for the engine as it struggles to get on high RPM when pulling someone on Ski's. It almost sounds like it has a dead spot, but after watching this video I think I know what the issue is. Prop pitch might be to high. When not pulling I have no issue with the prop and the boat really jumps out of the water. You don't maybe have a link to a website or any specs on which 4 blade prop would work on this particular engine?

@kevinhirdes8097 4 года назад

Thank you for confirming what I was thinking. I had to replace a prop last season. It was the first replacement in about 10 years. I let the shop know i was struggling with planing when the family is on-board. He switched me to a 4 blade and i cannot believe the difference. The top end speed is lower by about 3 MPH but the hole shot is 5 seconds faster with everyone on-board. watching your video today during the discussion of the added weight that my kids are all adults now and have added weight to my boat. Switching from 3 blades to 4 made the difference.

@jrodtfr9004 4 года назад

Man I've watched a lot of different prop videos and boating videos in general and none of them come close to the ease of understanding and clarity of explanation. Very helpful because I am upgrading my prop right now and this video just put me right where i need to be.thank you. #cleanboat

@Ken-fisho 4 года назад

Pretty concise information there Aaron but theres also blade shape and whether you tow as well good vid though Happy New Year mate 🇦🇺

@BornAgainBoating 4 года назад

Happy New Year! Yeah, I had "talk about cupping" written down, then it just never got into the video lol

@Ken-fisho 4 года назад

@@BornAgainBoating😃 not to worry i actually thought you mightve forgotten to mention it maybe caught up in Pre NYE party mode 🍾🥂🎆

@FriViden Год назад

For acceleration Mercury Enertia, for most efficient Mercury Enertia ECO. Tried them both. Only weakness - vibration at low speed rev below 800 rev/min.

@runbmc35 11 месяцев назад

On a 19' sea ray wirh a 3 blade 21p, i could get about 45mph at about 5,000rpms. That seems pretty efficient based on my boat only having a 4cyl engine. I did not expect to ever get going that fast when I purchased the boat

@joshlucas952 4 года назад

Just bought a boat and DM’d you on instagram! This is the prefect video being that the prop is the next thing I have to replace #cleanboat

@fishyhobby3697 4 года назад

Great video!

@scottsmith2869 4 года назад

Truly enjoyed the video!! Great topics. #cleanboat

@juanistella8469 4 года назад

Great vid! Thank you very much! Can you add some information about props for sailboats? Arround here, we sail in a wide river with pretty strong currents. Those two blade props just can't do the work. Many change the 2 blade for a 3 blade. Would you think a four blade would do better? Thank you very much anyway.

@BornAgainBoating 4 года назад

The more the blades, the more grip and handling. The 3 blade is probably fine but a 4 blade would give you that extra grip :)

@Dwq47 2 года назад

Hi, I’m wondering if the manufacturer picked the wrong prop for me. I have a 25’ step hull with a 23p factory stainless steel prop. It’s a LH prop with leaning to port most of the time with balancing issues. The battery is on the drivers side now. My last passenger was about 25lbs heavier than me and it was still leaving more so to port. Do I need a RH 23p stainless steel prop? Or a skeg anode slightly turned towards the driver side? The current anode is just flat. Maybe trim tabs although I don’t want to effect top speed if possible? Maybe a cavitation plate???

@AccordionJoe1 4 года назад

Back in the day, when I was a kid racing a three-point hydro with a Mercury Mark 20H on back, two-blade props were the way to go. Took longer to get on plane but once there would easily beat a similar boat with a three-blade prop. The trick was to get the right combination of pitch and diameter so the engine could rev higher.

4 года назад

Great videos ❤️

@Grottolova 4 года назад

Another video that makes me wanna do a day camp there. I wonder of my C340 has the best prop setup. I've had it at 50mph WOT mid to light chop. And it gets about 1.2 mpg at 32knts (I need to double-check that again) #cleanboat -but if I win I'm gonna donate it to another of your subscribers 🤣. I don't do the cleaning

@davedodge7761 3 года назад

Have a 19 ft cuddy. 5.7 Chevy. Went from a 15 17 to a 14.5 19. What a diff. Better mid range n more top end. N a wicked holeshot. The prob lasted one trip. So excited on performance that I forgot to lift out drive n it didn't like cement. Fubar... lol

@BornAgainBoating 3 года назад

Ouch!

@davedodge7761 3 года назад

@@BornAgainBoating oya. 170 down the pipe. Bam

@davidhenry4634 2 года назад

What size prop will you recommend for a speed boat (25ft/28ft) having a Yamaha 250 with a max allowed speed of 60 mph and 3 race crew members , and a fuel capacity of 120 litres.

@TheDoug9901 4 года назад

That's a good starting point. BUT you can have 2 three blade props with a different blade shape one will be better. The weight of the boat makes a difference. My boat is really light to the point I take on fuel as ballast in rough seas so it doesn't tip over, loading when out of fuel I have to stand in the middle to load it,. So I use an aggressive 21p meant for an IO.

@scottsmith2869 4 года назад

One more thing I have noticed on my last two boats. There in-board/out-boards. The tach is almost exactly what the RPM reads.

@craigbielsky115 3 года назад

THATS WHAT THE TACH DOES LOL YOU MEAN SPEEDO?

@christopherkiely8707 4 года назад

Excellent video...

@MarioSanchez-qx6yn 4 года назад

Great video, were on this mission currently with our 4.3 merc alpha 1 #cleanboat

@alexfleming9409 3 года назад

What prop did you go with I have a 20 foot with omc 4.3l and my prop is a 14.3x21 and I'm thinking of going to a 4 blade to get out of the water a little quicker

@dimalranasinghe8152 Год назад

Thank you very much.

@BornAgainBoating Год назад

Welcome 😊

@ericderace 2 года назад

What about buying an aftermarket prop vs buying OEM? Does it really make a difference in performance?

@townsville69 4 года назад

I recently changed my prop for my 2012 yammy 2 stroke. Its like a whole new motor. Gets out of the hole quicker, lower rpms for same speed and way better fuel economy. I wish I replaced it years ago #cleanboat.

@profthomason 4 года назад

Is that Townsville FNQ?

@townsville69 4 года назад

@@profthomason the one and only Brownsville.

@mikeries8549 4 года назад

Outlaw Oosers High Performance Tillers on facebook. Cool group. #55

@bruced566 3 года назад

1990 whaler walkaround WD ( whaler sea drive bracket) with twin 1993 200 hp yamaha precision blend 2-strokes , running 14 1/2 x 17's 3 blade stainless steel yamaha props, 225 gallons of fuel, gear, turns 4800 with engines down WOT with 3 heavier people (approx 850 lbs) , trims up to 51 to 5200, tops out 38+ to 41.2 knots depending on the trim and current. I believe it is set up correctly. Cruising 26-27 knots at 4k-4200. Put on a pair of the SE400 hydrafoils which are great no more or very little if any ventilation in a rough sea / fast current. Love the engines and Hydrafoils were a great investment! I wonder what she may cruise at / or/ WOT WITH TWIN Suzuki 300 dual props?

@theborg269x Год назад

I have a ski boat with a beat up old 13x13 prop 3 blade and it seems to not Rev out to the right rpm. The engine in a 305 and tired. The original engine was a 350 with a 13x12 3 blade.. so my question is if I put a 4 blade what pitch should I try first. I was thinking a 12x12. I never use wot because the motor is tired. I want to cruise at a lower rpm and get good mpg.. but also be able to pull big people up out of the water as I struggled a bit with a 250lb skiier.

@omandipr Год назад

hello, question I have 200 yamaha with14.5 15 prop, what otherthank you in advance choices I have?

@erikb8877 3 года назад

A good rule of thumb I have always used is, just me in the boat, 1/2 tank of fuel, no gear and just barely kissing the rev limiter when fully trimmed at WOT.

@fatdaddy6512 2 года назад

I put a 3 blade 21-pitch on my boat with 150 horse Merc comes right out of the hole very fast and the boat goes very fast I just need to stop destroying them on the rocks

@M_A_C_K_WA 2 года назад

Isn’t 3 prop meant for speed and 4 - 6 prop helps with the boat getting on plain quicker and helps with towing quicker?

@M_A_C_K_WA 2 года назад

And helps to get to places quicker with height?

@josephlowrance3 10 месяцев назад

Got a 96 Mercury 2 stroke 115 ELPTO on a 1900 XR Maxum. I do have a problem currently with the top speed only being 25MPH. Aside from that what prop would be best for wakeboarding and not sacrificing all the top speed?

@user-us2ol6cr2s Год назад

Could the motor not being run at the recommended range wear out the impeller faster?

@youdonthavetoreadthispost.5850 Год назад

Almost every used boat I bought was over-propped. In a perfect world you want a 'square-wheel'. A 13x13 is a square wheel. An inch of pitch buys around 200 rpm. if I remember correctly. Cup can vary but has the equivalent of 2 inches. A barge wheel pushes a heavy load like a sailboat. A faster pitch is wanted for top end and cruising. A variable pitch prop is a thing of beauty. If you can't hit the right revs. you are over. If you can over-rev then you are under. Don't 'lug' your engine. Find the sweet spot instead. You'll be glad you did.

@tomlosco1187 4 года назад

Good information, Happy New Year #cleanboat

@pedrobrizuela4615 Год назад

I have a 23.4 sailfish with a 200hp ox66 and prop with a 14-1/4 x17m I’m only getting tops 46 rpm’s It that a prop issue or motor issue

@rolandcornejo1145 2 года назад

Hi. I have a 2003 wellcraft 250 fisherman with 250 Yamaha hdpi. Would you by any any chance know which prop would be best for my setup? I don’t understand this stuff and can really use your help Roland

@wesnewman6708 4 года назад

just what i was looking for for my new motor #cleanboat

@kh2140 Год назад

Thanks for the info. I've been researching the difference between the 2 and from what I've seen, I'd rather go with 4 blade prop. I like how you can get on plane faster, stay on plane at lower speeds, and have better control. Top end speed is not a big deal to me. Especially if it is only 2 mph less.

@kh2140 Год назад

I tried a 4 blade and found out the 3 blade was better. Maybe because it was in a river, but the 4 blade felt like it struggled when the 3 blade was smooth.

@MasteroftheBlaster 11 месяцев назад

Does anyone have prop suggestions for a 2021 Trophy T20CX with factory 150hp 4 stroke? Sorry but I just bought this boat and don't have the engine specs.

@brianreffner3548 Год назад

I have a 5.7 in my boat with a wot at 4400 to 4800. How long g can I run my boat in that high rpm range

@thatoutdoorguy8360 4 года назад

Thanks for giving me an idea on props for our little tinny👍🏻 #cleanboat

@tommycusack2578 4 года назад

I run a 4 blade stainless prop on my Suzuki DF175 on my pro sports 2000BW it’s gets up on plane like a champ I have a spare 3 blade onboard never thought to compare the difference #cleanboat

@buttlickbandit8465 2 года назад

What about use 4 props? Could you use 2 different sets of props?

@motorv8N 3 года назад

Thanks for the info. Any thoughts on aluminum vs stainless with respect to performance? Ive heard aluminum can flex a tiny bit and lose some grip vs stainless which is way more rigid (but way more dollars too).

@BornAgainBoating 3 года назад

Exactly what you said ;) the aluminum will flex and are nice if you hit something, but the stainless are solid and give you a better bite on the water, but, at a cost lol

@motorv8N 3 года назад

Thanks for the reply! Yes, I use aluminum because my inland boating is on some beautiful but brutal lakes for underwater, unmarked rock shoals. Rather shred a prop than my driveline. 😬. Can't beat the bling of stainless tho! 😎

@reddawng43x91 2 года назад

Aluminum ain’t Flexin on any small hp motor such as his 25

@lachlanoneil8938 4 года назад

Sounds and feels like my prop is spinning faster and starts cavitation when I rev up in big waves and I slow down or only slightly speed up

@chevymanl88 4 года назад

Very good info brotha. #cleanboat

@markjennings2315 4 года назад

I’d like the optimum pitch to achieve max endurance at min plane speed plus 3 kts. My diesel like to sit at 3800rpm doing 16kts with current prop ( max is 4500 at 24kts but diesels don’t like being run high rpm)

@bhf4u 3 года назад

thats odd...because i have a 40' post with twin 6v92 detroits and she is most efficient 200 rpm's below WOT(2100)

@blackknight2072 4 года назад

And don't forget that changing your prop and pitch will also change the how quickly you get up on plane and speed at idle. I'm not sure if the speed to cruise at plane is different, but i do know the rpm is different on my underpropped 4 blade (14x17x4) versus my correctly setup 3 (14x19x3) blade. I'm sure this affects my mpg (or gallons per mile for you big boat guys). my idle speed dropped from 5mph to 3mph, which means i usually have to give my 4.3L v6 a little throttle while in an idle zone. [1992 Chapparel 1900 19']

@jeffbryner5355 3 года назад

At 500 a prop on the cheap end its a alot of money for trial amd error. Especially if u got a power boat with props that are 5k each lol

@craigbielsky115 3 года назад

when you can afford the boat that runs 5k props you dont have to guess we know .....

@timlong1462 2 года назад

Seems like prop manufactures should have a rental program or trial props that are used. You break it you buy it, or return in a week and get your money back and try a different one.

@jeffbryner5355 2 года назад

@@timlong1462 that's a great idea actually. I would love to try something new on my boat but it gets expensive quick to see if it maybe improves your performance or not

@timlong1462 2 года назад

@@jeffbryner5355 I’m surprised it doesn’t exist actually. Seems like it’s needed with hundreds of comparison videos and info that never seems to be the exact comparison you need for your specific scenario

@jeffbryner5355 2 года назад

@@timlong1462 yep exactly.