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500R OB VS 520/XR IO (funny and boat content)

LargeOrangeFont

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That’s like saying a Honda Civic or Subaru sounds good compared to a Big Block. I don’t get the infatuation with the sound of todays outboards. They sound like sewing machines lol

I’ve always been amazed that people are so concerned with sound they will spend more to “sound good” and go slower.

Something does not have to be loud to sound good. When I’ve heard people fire up their 450s..they sound mean.

Can you hear them across the lake? No.

To each his own.

 

rivrrts429

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I’ve always been amazed that people are so concerned with sound they will spend more to “sound good” and go slower.

Something does not have to be loud to sound good. When I’ve heard people fire up their 450s..they sound mean.

Can you hear them across the lake? No.

To each his own.



You would be correct… to each is own.
 

Tank

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Honest question, what’s 800hp cost from one of the big builders? Anyone know?

Edit: Assuming that’s including a 6 drive? Lots of cost savings if going SCX/similar?
The merc 860 is 96k no drive.

A #6 drive with transom assembly is gonna be 40kish new.

Zul tunnel rammed NA 800HP motor is about 90k. Teague’s are right there too.
 

Blackmagic94

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If you want to sound good and get embarrassed… the 520s. If you want to have a conversation on the boat at 130, use less fuel, have cheaper operating costs, and embarrass more people.. get the 500s 😄

I don’t even think comparing the 2 is a fair fight. :)

FWIW I have not heard a 500… but the 450s sounds pretty good.
Well this is where I’m gonna call bullshit. The bs is a convo at 130

Fastest I’ve been is 138 and there is nothing quiet about it. So I really question if your personal experience.

400rs on pontoons don’t even do what you said at 70 mph
 

LargeOrangeFont

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Well this is where I’m gonna call bullshit. The bs is a convo at 130

Fastest I’ve been is 138 and there is nothing quiet about it. So I really question if your personal experience.

400rs on pontoons don’t even do what you said at 70 mph

I’ve been in a boat at those speeds. The driver and front passenger can communicate at a reasonable level. The wind noise was louder than the outboard engines.

Don’t believe me? I don’t care. I was amazed.

A pontoon is 70 MPH wind in your face. You aren’t hearing shit.
 
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Skinny Tire AH

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You would be correct… to each is own.

3E100A8C-0914-4322-83F6-CE41A271F4C4.jpeg


“To each his own” 😂
 

hallett21

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So here’s my question



What’s faster


A 32’ cat with twin 520s XR speedmasters that roost

Or

32’ cat with twin 500Rs

Both same hull


Now through it another loop. With 60k extra in savings you now have a

700sci Nxt vs 500r. Which is faster for the dollar total spent
I’d say 500 OBs due to weight savings, Jack plates and the ability to carry the nose better.
 

hallett21

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I’ve always been amazed that people are so concerned with sound they will spend more to “sound good” and go slower.

Something does not have to be loud to sound good. When I’ve heard people fire up their 450s..they sound mean.

Can you hear them across the lake? No.

To each his own.

Pretty much my stance. Fast is fast whether it’s silent or 4 v12s screaming.

I’ve never understood needing a lot of noise to “feel” fast. There’s plenty of loud 55mph jet boats lol.
 

HydroSkreamin

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Merc 520EFI/XR combo roughly $40k and the Merc 500R being about $70k, at what price do you still save money going with outboards

Tank-The topic is a great one, and I agree, the response was awesome.

Couple of things-the price you are using for the 520 must be engine only, because the complete package with XR Sportmaster drive and ITS will be over $70K

Sterndrive is rated at the crank, OB is at the propshaft. Those two turns are costly (~8%), so the sterndrive at propshaft will be at a slight disadvantage. Also, sterndrive sound compliance is the boatbuilder’s responsibility, and power will go down if adding enough sound abatement to meet legal levels. OB sound compliance is engine mfg’s responsibility, and the 500R meets US and EU sound levels.

520 turns 5200 RPM, 500R turns 6600 RPM. Average gear ratio for 520 is 1.50:1, all 500R’s are 1.60:1, so very close, but when you couple 6600 with 1.60, you can pull a shorter pitch prop over the larger RPM range, which is why the OB cats appeal, because they pull nicely midrange to top.

520 burns 42 GPH@5200, 500R burns ~55 GPH@6600. This is due to the late burn from late spark for running pump gas with boost. The NA 520 is lean and mean, and actually very green. The low specific output allows this.

520 is 8.6L (60.5 HP/L) and runs on 87 octane , 500R is 4.6L (108.7 HP/L) and runs on 89 octane.

520/XR package has 2 years of warranty, a 65 amp alternator and weighs 1218 lbs dry, so a twin package would weigh 2236 dry.
500R has 3 years of warranty with an option to buy up to 5 more, a 115 amp alternator and the 20” model weighs 720 lbs dry, so a twin package would weigh 1440 dry. Basically 800 lbs difference, so triple 500R’s would still weigh less than twin 520’s. That’s significant.

I’ve spent time with both packages, and they each have performance appeal. The fact that both packages are DTS makes each a pleasure to drive; great throttle response and smooth, effortless shifting. If you’ve never driven a DTS package, you owe it to yourself to try it out.
 

Blackmagic94

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I’ve been in a boat at those speeds. The driver and front passenger can communicate at a reasonable level. The wind noise was louder than the outboard engines.

Don’t believe me? I don’t care. I was amazed.

A pontoon is 70 MPH wind in your face. You aren’t hearing shit.
The lack of details is amazing.


I’m also curious what OB runs 130s in a 450 or less as there is no way you were in a 500r.
 

DWC

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I ❤️ Loud Boats

😁
I was just checking my vids. Turns out i just like boats. I won’t lie. The only thing better than firing up my motor is firing up my other one😁







 
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Flying_Lavey

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Ther versatility in the set-up ability with OB's are unmatched. You can even change the set up in the middle of the day in a couple minutes and only 1 or 2 tools. Combine that with the CG advantages...... done deal.
 

Tank

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Tank-The topic is a great one, and I agree, the response was awesome.

Couple of things-the price you are using for the 520 must be engine only, because the complete package with XR Sportmaster drive and ITS will be over $70K

Sterndrive is rated at the crank, OB is at the propshaft. Those two turns are costly (~8%), so the sterndrive at propshaft will be at a slight disadvantage. Also, sterndrive sound compliance is the boatbuilder’s responsibility, and power will go down if adding enough sound abatement to meet legal levels. OB sound compliance is engine mfg’s responsibility, and the 500R meets US and EU sound levels.

520 turns 5200 RPM, 500R turns 6600 RPM. Average gear ratio for 520 is 1.50:1, all 500R’s are 1.60:1, so very close, but when you couple 6600 with 1.60, you can pull a shorter pitch prop over the larger RPM range, which is why the OB cats appeal, because they pull nicely midrange to top.

520 burns 42 GPH@5200, 500R burns ~55 GPH@6600. This is due to the late burn from late spark for running pump gas with boost. The NA 520 is lean and mean, and actually very green. The low specific output allows this.

520 is 8.6L (60.5 HP/L) and runs on 87 octane , 500R is 4.6L (108.7 HP/L) and runs on 89 octane.

520/XR package has 2 years of warranty, a 65 amp alternator and weighs 1218 lbs dry, so a twin package would weigh 2236 dry.
500R has 3 years of warranty with an option to buy up to 5 more, a 115 amp alternator and the 20” model weighs 720 lbs dry, so a twin package would weigh 1440 dry. Basically 800 lbs difference, so triple 500R’s would still weigh less than twin 520’s. That’s significant.

I’ve spent time with both packages, and they each have performance appeal. The fact that both packages are DTS makes each a pleasure to drive; great throttle response and smooth, effortless shifting. If you’ve never driven a DTS package, you owe it to yourself to try it out.
Damn! That is the most comprehensive answer I’ve seen on the topic. Besides dans original answer 😁😉

Thanks for the info. Good stuff.

I actually love all performance boats. The outboard cats huge out board CC’s and big HP I/O cats and vees. Even a 55mph jet bote. They’re all awsome.

However, personally I’ll take an i/o all day. To me, they’re just more fun and bad ass. My next boat will have 1,000 ish HP blower motors. Old tech, loud and nasty. Love that shit. I’d actually like to run dry pipes and name it “Quiet Down”
 

attitude

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I love me some outboards but I will say the big brother to the 520, the 565 has one of the best start ups and idles Mercury has produced.
 
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LargeOrangeFont

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Me too. Heading up tomorrow evening for the first boating trip in awhile. BIL, @Nordic35 and gang are coming up for the weekend. Really looking forward to it.

Hope we catch you out there this weekend!
 
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Tank

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Do you enjoy loud with with some surge? Lets just call it the “Spicy Latina”. Lol.

You can blame @Outdrive1 as he was the matchmaker. 😂
View attachment 1263033
Funny, I actually LOVE blower surge. I know technically you’re not supposed to have it if the motor is tuned right but man there’s something about a cranky as blown big block with some healthy blower surge. Makes me smile whenever I hear it at the lake or some crazy hot rod is ideling through the channel or fires up at the dock. For me, OB’s just don’t give me that tingly feeling. 😉😁
 

hallett21

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And you are sitting right next to the driver behind a windsheild in an MTI 😉
Lol idk where the rub comes from with outboards. They speak for themselves as far as performance. If you want to go faster get a high horsepower I/O.

Never in the world of performance anything has anyone described the benefits of a louder motor over performance lol.
 
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DWC

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DCB, Nordic and MTI to name a few.
Nordic for sure. We didn’t touch 130 on this trip but we did go from Windsor to the Gorge to the Springs to Windsor before my 7:00am Monday call. (Could have been a 6am call). Wish i had the cash to pick it up at the time. What a bad ass boat.


 

gqchris

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Funny, I actually LOVE blower surge. I know technically you’re not supposed to have it if the motor is tuned right but man there’s something about a cranky as blown big block with some healthy blower surge. Makes me smile whenever I hear it at the lake or some crazy hot rod is ideling through the channel or fires up at the dock. For me, OB’s just don’t give me that tingly feeling. 😉😁
11c2.gif
 

DWC

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However, personally I’ll take an i/o all day. To me, they’re just more fun and bad ass. My next boat will have 1,000 ish HP blower motors. Old tech, loud and nasty. Love that shit. I’d actually like to run dry pipes and name it “Quiet Down”
Hmmmmn
IMG_9310.jpeg
 

OLDRAAT

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Funny, I actually LOVE blower surge. I know technically you’re not supposed to have it if the motor is tuned right but man there’s something about a cranky as blown big block with some healthy blower surge. Makes me smile whenever I hear it at the lake or some crazy hot rod is ideling through the channel or fires up at the dock. For me, OB’s just don’t give me that tingly feeling. 😉😁
Rod and Ed's Sorcerer Skater when tuned to 'surge' made some big noise in it's day.
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View attachment 1263129
006_4A.JPG
 

ToMorrow44

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So here’s my question



What’s faster


A 32’ cat with twin 520s XR speedmasters that roost

Or

32’ cat with twin 500Rs

Both same hull


Now through it another loop. With 60k extra in savings you now have a

700sci Nxt vs 500r. Which is faster for the dollar total spent
I think this debate is difficult because it’s so apples to oranges in terms of the boat itself. Most OB cats are designed and built purposely for outboards and almost all of them are full carbon fiber which is how they get them to go so fast, they weigh nothing. Also the setup is way different, most OB cats to run the big numbers Jack the motors up and run very expensive cleavers. With the motors lowered and running Bravo-based props, they’re usually a good 10mph slower.

I’m trying to think of a hull that can be built with twin IO or OB that’s actually the same boat. DCB M29 is one, but I don’t know if any have been built with 450s, much less 500s. Eliminator 33x/31xo is the same hull but I think has only been built with 700s for inboard power. 🤷🏼‍♂️
 

Skinny Tire AH

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I think this debate is difficult because it’s so apples to oranges in terms of the boat itself. Most OB cats are designed and built purposely for outboards and almost all of them are full carbon fiber which is how they get them to go so fast, they weigh nothing. Also the setup is way different, most OB cats to run the big numbers Jack the motors up and run very expensive cleavers. With the motors lowered and running Bravo-based props, they’re usually a good 10mph slower.

I’m trying to think of a hull that can be built with twin IO or OB that’s actually the same boat. DCB M29 is one, but I don’t know if any have been built with 450s, much less 500s. Eliminator 33x/31xo is the same hull but I think has only been built with 700s for inboard power. 🤷🏼‍♂️
Other than no bustle and a notch insert, Skater 368 & 388 are built the same. They may lay them up lighter? not sure. But just the difference between a full carbon build and a regular glass schedule boat is enormous. Mine is 8740 dry. an exact 368 as mine, non-carbon built is ~9400. Thats like all the people and gear not being in the boat.

(regular sized people)
 
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