300 VS. 350 Horsepower Outboards!
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- เผยแพร่เมื่อ 7 ก.ย. 2024
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Every Outboard Motor corporation (for that matter, ANY corporation) in the country should be after you to do their training videos... You have PERFECT editing, all the pertinent information, no crap, not a SINGLE wasted/unnecessary word.... and yet it is interesting, entertaining and holds our interest! Yes, you are the best!
Lol thank you! :) Maybe we should open a school, how much should tuition be? :)
Hell sign me up! We can talk about tuition, as l am sure it would be fair. As long as we can talk about our boats too.
If you're gonna go 350, you might as well do the 400 on a Merc.
But this is exactly why I opted for the 300. A lot of extra weight for nominal increase in performance, especially for an inshore application. Can float shallower and get similar performance. Great video.
You guys always seem to knock it out of the park with these projects! Another great video with expert information. Thank you for all you share with us. Keep em' coming!
I remember playing the "prop swap" game.. sooo much info to factor in but once done it made such a difference. 👍
Been a boating guy my whole life all over Florida. From Marathon to Destin. Feel like I learn something new every time I watch your videos. 👍
Thanks Aaron for another smile. I enjoy the videos. Even if it has little to do with me and my boat. I think that the fuel economy would be different with a prop change. Adding 100 hp without a prop change doesn’t make sense but I understand that if you don’t have a different prop to switch out it’s tough. Fun to watch though. 😊
Thanks for the info again, just shows how much difference makes between boats and props cause
Interesting... I am going to repower my 27 foot Boston Whaler with Mercury 300s...
Thanks for the video....
If midrange economy is your game try the Enertia ECO props, that's what they were designed for and they are very good at that. They are also fast and good for lifting the boat out of the water. They bite quite hard (like a rev4) so go down 1'' pitch from the Enertias. A set of 16 pitch Enertia ECOs should be bang on for that boat... try them. I don't think you'll be dissapointed and I want to see the video! :D
With the new v8 300s. Boston whaler for example are saying that boats equipped with the 300s will be quicker and more efficient than the i6 350s.
Need that over deck paint video....
If not think im going "SEADEK" style..
Acceleration testing would be awesome to see if you get another chance at this. I always read about the difference between a Yamaha 150, 175, and 200 HP and would love to see real world numbers. Acceleration, Fuel burn, top end, and weigh difference of the engines (if any) Great content as always!
Interesting. I’d stick with the 300’s too
Don’t get me wrong I LOVE mercury, but the Yamaha f300 may be the most well rounded engine of all time.
Depends on the boats hull shape and max speed the hull is designed for. No point trying for 80mph if boats only designed for 50mph
Do a navigation-in shallow water full-speed
Bigger is not always better!!
Awesome Video! I would always wonder if I had 300 what the 350 would do. Just like with my new boat going with the twin 250 verado v8 what the difference would be with the 200 four strokes.
V8 300s will likely push a heavy boat quicker than an i6 350. I’d have to assume due to them having more torque
Yeah, I'd be more wondering what the 300s would do lol ;)
@@stevenjalopnik1342 350 wound still have a slight advantage across the board.
@@melrose9252 you’d be surprised
The 350s need more prop than the 300s do to utilize the extra power. 17 x 15 is nothing.
Exactly
Marshall Jones I don’t think so. I have some buddies that went from 300s to 350s. They were wondering the same thing. They ran the same exact props and it did not hinder the performance in any way.
Yeah, I wish we had a set of 4 blades that would have worked when we did this :/
yes I have 2007 275 verado I have power at the motor will trim up and down manually but I have no power at the key I change the key switch think that was it but it wasn't would a bad gauge cause this problem I have twin motors starboard motor cranks with no problems it is the port motor any info would be a great help thanks
The 350s have a bigger gear case as well as other upgrades like an intercooler.. The 400s however, are basically a high revving 350.
I run a single 350 on a '94 24' whaler with a 16.5 enertia eco and a jack plate. If i was repowering now I would get a 400 or the 300 NA v8... prob cheaper to run.
It really seemed like the boat in the video was underpropped. The guys at Mercury told me the 350 IS a more efficient engine than the 300 i6 torque/fuel burn wise but the 350 will burn more at wot.
The 350’s did not have a bigger gearcase than the 300’s, the 300’s were also fitted with the 5,44 heavy duty gearcases, you can see it in the beginning of the video
@@MrJhalmoes thx for pointing that out. When i got mine it did.
But which one is the better anchor????
Great video Aaron. However i'm surprised you didn't talk about 4 bladed props for fuel economy.
Yeah, I ran out of time on getting everything filmed and tested and edited and I couldn't get much more in the video :( we've been so busy lately with all kinds of stuff that we haven't had the time we usually spend in putting the videos together :( hopefully next month we'll be back to normal and be able to get all the info in the vids, I wanted to actually try a couple of different props out, but we didn't have the right props and ran out of time lol :(
@@BornAgainBoating How do you like living down in the Keys? I was a tech for 15+ years and made the change to surveying last year. One of my clients here recently told me I would make a killing down in the Keys as long as I wasn't a slobbering drunk and showed up on time. I am over in SW FL now, near Fort Myers, and I do well but he had me wondering if the keys would really be that much better. Any truth to that down there?
I'm sorry buy I need to add one more comment about a great thing I learned from your video, that has NOTHING to do with the subject of the video... and that is another good option on how/where to 'store' the Armstrong bracket boarder ladder. I really am looking for a better option (I know of pontoon boats have better boarding ladders!) but in the mean time, your video showed me a good option!
Good afternoon as it costs 40hp and 30hp long leg 4tienpos used 2018 thanks
Nice 👍
I’ve been watching a lot of your videos and it sure has helped a lot but I am stumped on my boat the moment and need a little trouble shoot help. I have a 2015 250 pro xs optimax 2 strike on my 23’ explorer bay boat. When I try to make my hole shot it bogs down after it hits 3,000 rpm and just keeps doing it right before it gets to get on plane and sits me back down. Sometimes it’ll get onto plane after a few tries of throttling down and mashing it but only get up to about 4,000 rpm. Anything helps, love the channel and hope to hear back from you
Thank you! It's hard to say, it could be anything. The best place to start is going through the tests from the optimax video: th-cam.com/video/88u0TdOo6vI/w-d-xo.html
Those tests should lead you in the right direction, the only other thing would be that the engine doesn't see block water pressure, which is a sensor on the aft of the engine that has a water tube going to it. Make sure that's getting water and that the engine can see it.
Sometimes less really is more!
Great Stuff, But changing the prop could get you at least the same MPG of the 300HP???
Depends, the 350s and 400s have a different injector which has a larger volume to get more fuel into the cylinder and that is part of how they get the extra horsepower out of them. So certain applications and speeds have different results :(
It’s actually quite amazing. My boat, a 30 foot Boston whaler, can only do 24 at 4200 rpms and 28 at 5000 rpms depending on load and conditions. Twin 350 verados would really help my boat gain more speed and gain more fuel economy. Most boats in my size that motor combo is way too big for. But my boat weighs 10-11,000 pounds fully loaded needs that power. So for my application, the cost definitely justifies getting these motors if I repower. Also, I currently have 2005 mercury verado 250s on my boat; does anybody know how many hours I should expect from these motors, I do all of the required maintenance as soon as it’s needed and I take care of them very rigorously. Thanks and stay safe! 😁😁
Tough to say, but I've seen the Verados go well over 1,000 hours. Especially with the charter fishing guys. They put a lot of hard hours on these engines before they re-power.
Oswald Cobblepot Mine have 1430 hours on it
They will go for a long time if you take care of them.
Benji Gans if you get 1 to 200 consider yourself lucky. Oh...we were talking about before the first breakdown right?
Jerry No, total life expectancy before I need to get a rebuild or new engines
Quick question what’s the part number for the inline fuel filter housing for a Yamaha 250 fourstroke. The housing on mine are starting to strip
Working on getting the number, ill put it on the other comment :)
Yt channel had their single 300 hp engine first major scheduled service at something like 250 hours. They were charged just over $3,000s. That can't be right, can it?
Hard to say, who knows what all got done :/
so you got 2 350hp outboards and you are concerned mainly about fuel economey? i have a 40hp 4 stroke yammy on a 16 ft skiff it goes almost 70 miles on 6 gallons of fuel.
@David Silva.. well heck, you should be able to make it to the Bahamas in an hour or so and only use 6 gallons! Oh wait, I forgot about all the waves...
what about those big seven marine motors the 527hp and bigger
Haven't gotten to play with them yet :(
@@BornAgainBoating I'm waiting for a blown up one to get LS swapped I dont think due to design it would be hard but what do I know
Motors mounted on top holes on transom?
I've got twin yamaha 300hp's with the digital yamaha command link plus gauge. I noticed when i was running in recently, the mpg and speed readings stopped working on it but everything else still works. Any pointers on what would correct this? Thanks!
Depending on how old the engines are. For the speed try and clean the pitot sensor hole that is in the front of the lower unit.
Then the mpg, thats odd, those aren't related but if you have twins it should be at least reading one engine 🤔
@@BornAgainBoating @Bs106I know this is 8 months old and you've likely fixed this..., but maybe this helps someone else. MPG is Miles Per Gallon. It's calculated by taking the fuel usage and dividing it by the distance the boat has gone. You need to know the speed to know the distance traveled. My guess with the MPG reading being gone is because without the computer knowing the speed, it can't figure out the miles of MPG... Thus, no reading. You can likely still see the GPH reading without the speed. Your solution should fix both issues. :-)
Hi, I would like to ask you what you advise. I have Oryx Gulf Craft 36, so what is the best 300 Mercury or 350, full weights 18,000? Thanks
Well, the 300s are v8s and the 350s are supercharged l6's, so the v8s will save you money on gas
Seems like mostly a prop test, not so much an engine test.
don't know anyone personally who'd go thru all that...seems round here the salesmen just push out the most HP, the boat can handle, sooooooo many 300 Yamaha's!!! I'll guess ya'll didn't do all that for free. But then again, you are down there in LaLa land FLA.
Lol well sort of :/ it took me about 4 hours to do the swap and its on the boat we run so it was more for us lol it'll be about another 3 hours to swap them back though
I do get it! They have the marina, the tools, the parts and the time. That's the way to keep "all gears well oiled". And to be honest I do the same with my tools, put stuff apart and back together.
there is no torque in the mercurys of 6 cylinders in line with pressurized air they are rubbish
Bigger doesn't always mean better
Those 300 are they verado or v8s
These are the old style inline 6 supercharged verados
I am ( was ) of the school that the larger engine doesn't have to work as hard to maintain status Quo . Am I right ??
Yes. That is generally true. You're taking the stress of the engine with the added horsepower or engines and thats like making the boat lighter to the engine lol
Where do you get your outboards from?
We do a lot of repowers and well buy boats and fix them up so there's usually just opportunities coming and going.
HOW MANY HR ON THE 350S ARE THEY FOR SALE
1760 and yes they are for sale
Next year I am replacing my 225 opti with a 300 proxs
Nice!
More horsepower equates to more fish, right?
Exactly, and a louder stereo equates to more top end speed ;)
Lol!
Well one has 300hp and one has 350hp
Do you know the fault with a 300 hp Verado mercury 103 single engines, Thank you very much.Aus Krahnepuhl an der Havel in Brandenburg.
Not sure what fault you are asking about:(
Can you flash 2010 300 to 350?
cruising is NOT 4300 rpm is about 3200 depend boat size and engine setup!! nothing above 3500 rpms
Was this just a experiment for a video? Or was a customer trying engines out engines and wanted them swapped back? That must be expensive to take the engines off and put them on again.
HECK YEAH, thats what I didn't get, but down there the $$$ flows like saltwater!
Lol no, not for a client but for me :) thats the boat we run and we had done the engine swap for the 350s awhile ago and just now got the extra minute to swap the engines and try them out :) lol I guess you can call it perks of the industry ;) lol
Ok, so i had all kinds of outboards, i know them damn well, i had the most mercury wich is the worst, thank to yamaha & suzuki
I’d hang the 350’s and tell myself performance is better across the board. It’s the American way .
Maybe we'll just switch the cowlings;) lol
Born Again Boating 😂 Even better.
A horsepower change without a prop change is pointless. More hp same prop yields higher top rpm and mph. Change the propane optimize it for fuel economy and both combinations should yield very close fuel burn with slightly more speed and faster to plane to the larger engines. Props make all the difference on a boat. 4 blades have worked very good in our testing.
Now put some Sharrow props on it and viola...
F U N
If you want better fuel economy and reliability, Suzuki is your answer.