Merlon's Master Creation Cummins Speed Boat

600 HP Tarva V Drive Cummins Speed Boat, Built by Merlon Johnson at Old School Garage
Find me on Facebook - Merlon Johnson
and on Instagram @merlinsoldschoolgarage

[@AnselGaddy]

I like the guy in the background on his sailboat just trying to relax and have a nice day on the lake. Uhoh here comes Floating Coal.

[@markfava80]

Perfect name for the boat . Floating coal .

[@Alohaxchase808]

Ansel Gaddy I fucking love you

[@ZacLowing]

Dam, I almost looked away but floating coal, LOL

[@ethanheitz4489]

bwhahahahahaha

[@andrewking4885]

The smokiest boat on the water.

[@brittlanders351]

Turbo Cummings is a thing of beauty! I love how the motor is the center piece of this build. Great work guys

[@benjaminturpin2749]

Wtf is a Cummings? Isn't that what porn stars do? I've heard of cummins. I don't think that's what you're talking about though.

[@AmericanThunder]

@@benjaminturpin2749 Actually Summer Cummings IS a pornstar. lol I'm sure she spent some time in boats, too. But a Cummins is better.

[@Carla-tz7qw]

You must have never been around a Detroit.

[@tdixon748]

Hands down the coolest thing in the world. I have an old 12 valve that has a dodge falling apart around it, thinking this may be a wonderful rebirth

[@Chef4life79]

Boat should be called deep purple.....smokeee on the water🤘

[@ericmcclellan4660]

I Vote Smokee On the Water.

[@WARD5KUSTOMZ]

Probably the best sounding boat on the water

[@paulwoodman5131]

This boat hull looks a lot like the new yellow submarine, looking forward to a boat Drag!!

[@nathanmciver3829]

Thanks! That made my day! Thier is nothing better than being out on the water and seeing somone enjoy thier boat makes me motivated to keep moving forward with my families boat!

[@franksgarageandcustoms8321]

Merlon, love your work. Never imagined a diesel boat to rock it like that. Fastest i have been on the water is 80 mph on gps. Didnt realize you wore 2 hats. Big thumbs up.

[@gordonmcfadyen4219]

Without doubt, the best boat conversion ever, good one👍

[@benjaminivey2680]

This is the coolest thing I’ve seen this month. Love it.

[@Mryiyo209.]

You have alot of knowledge man I wish I could hang out with someone like you I'd soak it all up cool builds

[@nate4684]

This is awesome 👍👍👍 I just knew there would be videos of a boat with a 12 valve in er!

[@ShannonSmith4u2]

That turbo whine is such a beautiful sound!

[@homefront3162]

I imagine more prop would work well

[@rollerskates1300]

Awesome boat Awesome build Awesome engine Awesome vid...

[@Ashley_Schaeffer]

Holy Moly! This thing is a beast... Such a light boat with such a powerful engine....

[@HIudown808]

I haven't enjoyed anyrhing on KZbin in a min till this

[@bobv8219]

He was doin it like a kid with his first diesel truck , hammering out that smoke.

[@Sdukes001]

You sir mKe the absolute best builds, boats,trucks, everything that thing is a monster

[@dansmith822]

Bet this guy owns a Harley too - throttles it like a biker

[@ussenterprise5364]

Dan Smith Sound like that engine is easily over-powering the prop.

[@toordog1753]

Sounds like you're trying to knock someone who knows throttle control....

[@johncholmes643]

@Art Vandelay you're the biggest idiot

[@heavy_haul_n_fool4035]

Diesels build boost under load when the boat gets semi air born the load becomes lighter then the boat comes back down increasing load turbo spools that’s why you hear the surging

[@desertoutlaw3317]

Heavy_Haul_N_Fool this guy knows what hes talking about

[@MrNakedLandscaper]

90 MPH and bleeding ears! Perfect!

[@waltermcdonald5042]

Restless foot disease!

[@kopronko]

Amennn !!! ! !!!

[@mike86mike]

Foot can cer.

[@jorgesenna1304]

Parabéns pela postagem !!! Esse Cummins fala allto, abs. Belo trabalho...

[@andypreston1524]

Love it, awesome piece of kit! I like your little truck too!

[@JL-dz8sj]

I love the simplicity of the 6BT

[@GeekBoyMN]

Could we get some video with a steady run without all the jacking with the throttle?

[@dalepenner8411]

I agree 👍

[@kopronko]

I doubt we can get it .

[@KiloShock]

You can't get it because the way the hull planes in and out of the water changes the load on the engine. He is not jacking with the throttle. It's pinned and the load is changing because if the changing drag of the boats hull in the water.

[@mikeftx835]

thats how diesel engines run, the load is gone when it comes out of the water and then the engine floods with fuel hence the black smoke and then the boost lag comes in and when if boosts it comes out of the water again. boost can only be achieved with a load and when i hops out of the water it looses boost.

[@relaxinmaxin7246]

You serious? You'll accept video as presented jack-hole.

[@TheEduventura25]

Realmente é música para meus ouvidos. Parabéns pelo projeto!

[@michaelpicozzi3910]

Same here love that truck never seen anything like that with a diesel love it

[@TangoCharlieAlpha]

Sure would be a "treat" to ski behind THAT boat. Here...have some soot!!

[@DaBrute]

What's with all the damn throttling? The boat isn't even leaving the water

[@ROTAXD]

DaBrute trust me, he likely does not even understand the concept of backing off when the prop leaves the water like an actual offshore boat owner does. What that tard is doing is intentionally closing the throttle then whacking it again to impress all of the 12 year olds that still think rolling coal means big hp.

[@macgyver15147]

Diesel engines do not like high RPM about 3,000 RPM redline. The boat has an under sized prop for the power. So it seems he is accelerating in short 5 mile per hour bursts as to not stay at redline for prolonged time.

[@macgyver15147]

Also rolling coal is fun too so why not

[@eloyex]

macgyver15147. Was thinking the same ... need a lot of propeller adjustment .. seems to be over reving badly ...

[@chaseb346]

I think he liked the way the boat rocked

[@markjessurun1294]

Nice engine pretty fast boat lots of Torque when that Turbo kicks in huh !! Good luck and lots of Safe Boating !!

[@juniorkhan9539]

My oh my. That truck was a beaut but the boat was a masterpiece

[@igotajopamerica3040]

Like the boat and the truck.NICE!

[@motoman22atgmail]

"How fast will it go?" ...dunno, I shat my pants at 115 and it still had plenty of throttle left.

[@richardlee2740]

Way cool! Awesome build👍

[@fletchlives4763]

Gosh brings back memory’s. One buddy had a 68 Chris craft another Buddy had a ski na teak . Both had 351 Cleveland in them . I tell ya nothing like having a car Motor in your boat

[@cocosloan3748]

Imagine runaway on this diesel engine? You will never stop :)

[@nicolasp7395]

Cut or broke oil line to the turbo

[@quillmaurer6563]

"He's setting a new world speed record! Let's see what he has to say over the radio? Hey, how ya doin?" "HEELLLLLLLLLLP! CAN'T SLOW DOWN!"

[@Phemsdasla]

As usual amazing cummins ..beautiful sound in my mind

[@robertlantz2206]

Good old site 6,I miss that whole place. Best years of my life were on Lake Havasu.

[@MAVA1686]

Awesome speed.. I like the sound of the motor .

[@conantdog]

Sweet diesel speedboat 👍⚒️🛠️

[@sonictheedgehog5360]

Haha this makes two strokes with pre mix fuel look economical lmao

[@milan5159]

Nah, straight pipe any Diesel and it does smoke as much

[@bencrosbie]

Smiles per gallon

[@YR7A]

It's just carbon. (It helps plants look it up)

[@fishfire_2999]

And environmentally friendly lol

[@phubarnow5388]

@@milan5159 bullshit, its a fueling problem when it smokes

[@ashtonbyrd4190]

Sounds like it has some left to give too, very cool.

[@jamesmccaughey5604]

You can tell the engine was in a semi in a past life. Great work!!

[@davidwoermansr]

An old Dodge pickup just a standard 12v Cummins

[@patrick7536]

The true land of the free! Arizona, God bless you!

[@BigBlock632]

You sure need a bigger prop for way more launch and topspeed. Or a turbine prop.

[@ROTAXD]

SmallBlock351Cleveland yea, because a junkyard cummins will spin a surface piercing prop (what you call a turbine prop) at the huge rpms you need required to make one work. Smh c'mon man, use your head. He could've dropped in a hammered v6 and gone the same speed at 1/3 the weight.

[@dundonrl]

ROTAXD or used a transmission to spin it faster, utilizing the low end torque of a diesel.

[@clevelandmortician3887]

SmallBlock351Cleveland yes. Bigger prop with more pitch. That diesel will spin almost anything

[@aarons5259]

ROTAXD dumbass

[@SteveReynold]

Aaron S I think you might be top ranking dumb ass here. Edit: viewed your profile and found proof. kzbin.info/www/bejne/jYHOfoiLbtmIp80

[@mrbibchucky]

LOVE DA CHEVY plus Cummins Sounds Great

[@davidapple8047]

The truck that was towing the boat is awesome!

[@Jeremy-ts4xp]

Madddddd sick ....!!!!

[@whatsitsmaxrpm2675]

bro this boat is so awesome. I love builds like this......with way too much POWER!

[@genehasenbuhler2594]

Ya gotta name her SMOKE ON THE WATER!👍😄

[@georgewaters8592]

whoa that baby is sick !! I love it...... Regarding the throttling, diesels can't exactly rev high forever, they are not like a typical small block - or big block tunnel ram moter that can run 7,000 rpm for an extended period. Gotta say, I've never seen anything like this in my life.... bet that boat's a real fun ride.

[@davidwoermansr]

That depends how they're built industrial builds are meant for wide open all day that's why farm equipment uses them just a few special parts

[@shaggyboz9859]

sweet boat

[@atVVV1]

super cool, I agree tho that it looked like 55ish not 90. get out the GPS speed app. also could you change the prop out for more top end? you obviously have the torque. thumbs up

[@SuperJlonergan]

at 1:00 he is past 50-55 so at 130 he is wayyy past that

[@60viking]

A prop with more pitch might be hard for the diesel to handle at slow speed.

[@matthewallen978]

@@60viking cummisn make all their torque down low in the rpms so it wouldnt have a problem

[@michaeltablet8577]

Faster than green apples through a goose! Great build!

[@addikotter4351]

Can't say I've ever been a happier sailor

[@djh254]

I must say screw everyone and the hater comments. That is a sweet setup! Is it a marine Cummins? Is it raw water cooled ?

[@Ram-re5em]

Rolling coal like that I am sure the EPA will write some regulations for boats now. Great job!!!

[@johncholmes643]

With a comment that liberal, I'd bet a days wage you live in Oregon or California

[@pvcarmon1]

That Merlon is a mad scientist!

[@BoogieButts]

That sound put smile on face

[@cw9533]

This looks like a copy of the guy in Thailand/Vietnam on a diesel turbo boat. I was hoping for a run like his.

[@unoefxz]

Nice black line that leaves behind it, DEP and Conservation Officers are going to have to get thicker ticket books for this guy.

[@Shokwave8]

uno efx Thank you! The only comment that fits my thoughts on watching this one.

[@fjs1111]

Hahaha that's great man!!! NICE! I have 2100hp but my boat is 60 tons. Thought I was fast, damn good work

[@shaneharrison4775]

That a smokeing work of art love it

[@robnorth8514]

I'd like to see the Dyno results that backs the HP claim. There are motors out there that are half the size that can put 90mph to shame. He did have a nice truck though.

[@Jackmerius_Tacktheretrix]

He needs a different prop. With that prop it doesn't matter if he has 150hp or 1,000hp, it's still going to do the same speed at that rpm. Kind of like driving around in 1st gear all day. Needs a more aggressive pitch on the prop. Then it will cruise at higher speeds while turning lower rpm.

[@blackbirdxx928]

rochab77 it's a turbo, the more gear you throw at it the more the motor loads the more power it makes the harder it pulls. With 70"s in the vdrive and 1:1 trans an a 16 prop is only good for 70 not counting prop slip.

[@Jackmerius_Tacktheretrix]

@@blackbirdxx928 what I'm saying is no matter how much horsepower you have it's going to go the same speed at the same rpm until the load from the prop is greater than the power of the engine. That's what I'm explaining to Robert north. In this case it isnt horsepower limiting the top speed, its rpm limited. Like on a car whis top speed limited by engine rpm instead of being limited by drag.

[@blackbirdxx928]

rochab77 sorta kinda although horsepower is not limited by rpm, he backs off the throttle to keep rpm within the mechanical limitations of the motor. More speed takes more HP and the increase load on the motor makes more boost. Drive down a flat road with my 24 valve, start up a hill and without changing the throttle setting mph will increase. Merlin's deal just needs more gears because unlike a gas motor a diesel has a very limited safe rpm range...BBC starts making usable power a 2k and with a decent valve train could make power to 8k+ . 12 valve starts to get happy at 1k and could start spitting parts at 3500.

[@MrMechanic-mb4yh]

Yes these half size engines also have a higher rpm range so you have to take that into consideration

[@davereil849]

Hey Merlin? Serious note here at video mark 1:20-1:25 is that a Water line ? The Black Hose? WHATEVER it is, IT IS PINCHED CLOSED,...AND THAT CAN"T BE GOOD !!

[@MrTheHillfolk]

Yea thats usually a port for a sender or heater core , that would be the water going back to the rad in a conventional setup. Not much of a boat guy but I know a little about a 6b and I know they use heat exchangers instead of radiators.

[@phil5359]

0:59 that turbo whistle reminds me of my dentist

[@slowdailys7914]

*Woah, that's freaking Awesome!*

[@justinsane7128]

Awesome 😎

[@767dag]

Lay in it and stay in it

[@benstockton9627]

He’s doing that so he doesn’t overspeed anything, the motor probably tops out at 4,500

[@SuprSi]

@@benstockton9627 so use partial throttle....

[@cobrasvt347]

Damn your cranking the rpms out of her 🤘

[@terremoto..6809]

Just beautiful!

[@plank3000]

lets talk about that fucking truck!!

[@amb3cog]

I've done a little over 75mph in an 18.5 ft speedboat with a 318 Chrysler inboard/outboard setup, when I was a teenager. Very low to the water, like this boat is also. And the only feeling of speed I've felt that eclipsed it was a few motorcycles I've ridden. Not even doing 150mph in a car beats the feeling. And that's truly an amazing feeling especially on a public highway. So I can only imagine what 90mph feels like. Being that close to the water really makes how fast you're going sink in. I would love to feel the adrenaline rush from this boat. I bet it will jack you up better then good cocaine will! I highly recommended a fast boat, if you're an adrenaline junky, and your wallet is FAT! 😊 If you're off average means. Might I suggest a dirt bike, or a really fast go kart? Both have the ability to leave skid marks, and put your laundry detergent to the test. 😂

[@TowMan127]

That thing is sweet!!! Subscribed today. Came over from Fab Rats.

[@saleslopes3632]

Espetacular!!🇧🇷🇧🇷

[@vzgsxr]

Could never be a ski boat, the rider would need a gas mask 😂

[@schymark8392]

I wanna see more of that truck

[@BobVerwey]

Vegas rat rods

[@AUSSIETRAINDRIVER]

Love the on and off throttle, but it would be sweet to just hear it full noise, even better with skiers on the back, how fast does it go as is?

[@ericmcclellan4660]

It Sounds like a Dodge Ram Truck Getting busy on the road....Hell ya...

[@nickerrichiello2441]

Need a better propellor buddy its cavitating

[@Fleeglebutt]

I wouldn't want to waterski behind that! (Cough, cough!)

[@marius9900]

Lol

[@odemu2074]

Hahahaha the torque would pull ur arms right off!

[@HenriqueSilva-ow6qy]

Belíssimo trabalho. Parabéns

[@technomax409]

beautifull lake !!!! hope i can visit it some day

[@kfstreich4787]

I'd run that on biodiesel to confuse the tree huggers, do we hate it for the power and noise or love it for the biodiesel?

[@enzochiapet]

Rolling coal was cool at first, but good Lord man when you got up to speed why you just didn't run the throttle steady so we enjoy it was beyond me.

[@robertmoreau9382]

You can't in waves. It puts too much stress on the out drive and could rip it out of the hull.

[@scottskinner577]

@@robertmoreau9382 thats a good point hell, my buddies Sea-Doo's were always tearing up that way. The kind of torque of a Cummins???? Sheeeeeeit

[@realsonnysullivan]

What out drive?

[@matthewallen978]

@enzochiapet im quoting another commenter on this so credit to Heavy_Haul_N_Fool "Diesels build boost under load when the boat gets semi air born the load becomes lighter then the boat comes back down increasing load turbo spools that’s why you hear the surging". in the video the boat does bounce a little bit, so that would attribute to the load decreasing.

[@deezelfairy]

Think I'd want a blast shield between me and that cummins, wouldn't wanna be in the captains seat when it grenades! 😂😂😂 Awesome build fellas!

[@waynesimpson2040]

That thing's never going to come apart at 600 horsepower..... Maybe if it had 2,600hp but not 600hp..... I have a 1995 12 valve 5.9 and I wouldn't sell it for nothing 😁

[@pauloalmeida4504]

Espatacular esse Cummins 6 cilindros ! Show !

[@ABH313]

I bet the prop kept cavitating... that's why he kept throttling in back

[@rolandocrisostomo2003]

You are a smart guy, not a lot of people know about that marine phenomenon.

[@ABH313]

@@rolandocrisostomo2003 thanks, driven a couple prop ski boats before, this always happens if you get on the power too quick

[@farginicehole513]

And it can end up doing damage to the prop if sustained.

[@matthewallen978]

diesels build power under load. in the video you can see that there are waves which are making the boat jump a bit. that movement of the boat would be just enough to change the load on the motor. he isnt on and off the throttl, he's got it pinned. the reason it surges is because when the boat is fully in the water, it puts a load on the engine and it builds boost. then, when the boat skips or jumps, the load is gone and the engine stops building boost, this dumps fuel into the cylinders, when the load is reintroduced the engine builds boost again and causes the engine to surge. that fuel dump when there isnt any boost is whats also causing the smoke.

[@EATSLEEPDRIVE2002]

Look at all that black smoke... he must be so cool

[@matthewallen978]

diesels build power under load. in the video you can see that there are waves which are making the boat jump a bit. that movement of the boat would be just enough to change the load on the motor. he isnt on and off the throttl, he's got it pinned. the reason it surges is because when the boat is fully in the water, it puts a load on the engine and it builds boost. then, when the boat skips or jumps, the load is gone and the engine stops building boost, this dumps fuel into the cylinders, when the load is reintroduced the engine builds boost again and causes the engine to surge. that fuel dump when there isnt any boost is whats also causing the smoke.

[@michaelhauser603]

That truck is so cool

[@Vandalsounds]

That thing was more than badass! :)

[@Glhaw]

In my opinion with all the work that probably took i would rather put that in an old car and made one hell of a sleeper

[@jeremymcauliff8485]

Plenty of power. Needs more prop so the driver doesn't have to keep lifting on the throttle.

[@johnwengu3947]

Jeremy McAuliff

[@matthewallen978]

he's not lifting the throttle. im quoting another commenter on this so credit to Heavy_Haul_N_Fool "Diesels build boost under load when the boat gets semi air born the load becomes lighter then the boat comes back down increasing load turbo spools that’s why you hear the surging". in the video the boat does bounce a little bit, so that would attribute to the load decreasing.

[@jeremymcauliff8485]

@@matthewallen978 I get where you are coming from, but I stand by my statement from 3 years ago. A higher pitch prop would put more load on the engine and thus keep the engine running under boost. I am not familiar with V drive hulls though and there could be a limit to their maximum speed before becoming unstable.

[@matthewallen978]

@@jeremymcauliff8485 v drive hulls do become unstable at high speeds but thats above 150 mph, so a higher pitch would do the boat a load of good. The point of my comment was to just make light of the fact that the driver wasnt lifting the throttle on purpose, more it was just an effect if the constant loading and unloading of the engine

[@jeremymcauliff8485]

@@matthewallen978 Understood. I'm a bass boat guy and can only speak to that experience. If you're banging off the rev limiter and have to pedal the throttle, it's time for more pitch. Admittedly, I know nothing about diesels.

[@jks3849]

Now that's a speedboat

[@thehappytexan]

An air to water Intercooler being cooled by cool lake water will not only boost power but also engine longevity. That’s the beauty of marine applications. You have an endless supply of cool water to support higher hp than on road applications.

[@lyson-products]

Holy fuck, enough of the on/off throttle

[@bobwoodlandjr5497]

Love reading all the comments from all the uneducated people who think they know something about diesel.

[@nosatisfaction2278]

bob woodland jr way more than you jr...

[@FYMASMD]

Educate them instead of being a condescending dick.👎😛

[@matthewallen978]

exactly... they're all complaining about the throttle and the smoke. but they dont understand that diesels build power under load. in the video you can see that there are waves which are making the boat jump a bit. that movement of the boat would be just enough to change the load on the motor. he isnt on and off the throttl, he's got it pinned. the reason it surges is because when the boat is fully in the water, it puts a load on the engine and it builds boost. then, when the boat skips or jumps, the load is gone and the engine stops building boost, this dumps fuel into the cylinders, when the load is reintroduced the engine builds boost again and causes the engine to surge. that fuel dump when there isnt any boost is whats also causing the smoke.

[@staffyrubber23]

Or vdrive boats lol..

[@Mr20Muleteam]

J.Irwin Miller had this guy beat 50 years ago with his tandem cockpit Wooden hulled Cummins marine powered speedboat on Lake Muskoka in Ontario. He was the man who made Cummins what it is today. It was called Llano.

[@levergun]

Coolest boat on the planet.