What’s the advantage of outboard set up versus an inboard set up.

[port austin pirate]

obs save time en money no need for a man card and crossdressing is considered stylin

 

[lavey jr]

Twins for twins. Not even in the same league.

You’re right, if you’re talking about a twin inboard setup that has 800hp per side. But seeing you can’t get an outboard that is 800hp that comparison is irrelevant and obviously the inboard would be faster when comparing 1600hp worth of inboards to 900hp worth of outboards.

So let’s make the comparison more even and in the same league speaking twins for twins.

Max horsepower for a high performance outboard is currently 450hp. So with that being said let’s take a twin engine inboard cat with 450hp per side to match the outboard setup horsepower. The outboard powered cat will absolutely be anywhere from 15-30mph faster.

 

[Wizard29]

One of the biggest keys that almost EVERYONE overlooks is the balance of the boat. An outboard puts all the engine weight OUTSIDE the hull which means the boats runs more efficiently. Combine that with the on-the-fly adjust of thrust angles and prop position and it is a FAR more efficient form of propulsion. And I use efficient in the regards that it takes about half the power to run the same as similarly set-up I/O's.

Curious on this one. I have two boats that are both inboards...a 34 Eliminator and a 43 Eliminator. The engines in the 34 are side by side and the engines in the 43 are staggered. With one engine further forward, the balance is much better in the 43.

I would think with outboards being as far back as possible on the boat, it would tend to be ass heavy and not be the ideal balance?

 

[Flying_Lavey]

Curious on this one. I have two boats that are both inboards...a 34 Eliminator and a 43 Eliminator. The engines in the 34 are side by side and the engines in the 43 are staggered. With one engine further forward, the balance is much better in the 43.

I would think with outboards being as far back as possible on the boat, it would tend to be ass heavy and not be the ideal balance?

On an air entrapment hull, the further back, the better the hull works. In a Vee it's a little more sensitive to balance but its always easier to move the balance point forward than it is backwards. Also large offshore Vees are staggered like that to help keep the outdrives in the water when the hull is running dry.

 

[LargeOrangeFont]

Twins for twins. Not even in the same league.

2 450 outboards will decimate 2 8.2 HOs. They will decimate 2 520 or 525.

 

[lbhsbz]

I think we are in the honeymoon period of outboards right now.

Everyone says how great they are and how low maintenance, but everyone that says that has brand spankin new motors, nobody has a modern four stroke with 10+ years of use yet....

When they do, they are going to be in for a shock when it comes time to rebuild/repair and you only have a single supplier with a monopoly on the proprietary parts. They will be facing the same costs as traditional big block per hp, and worse with supply of the actual components.

Now 2 strokes are a different beast, Very simple, very few parts internally, 40 years of shops with experience making them run and rebuilding them.

4 strokes, wait till you have to do your first valve job and you find out you are just gonna have to buy a complete cylinder head from Merc because nobody has the tooling or parts to do a simple rebuild.

Now if you accept that reality there are still plenty of benefits to outboards in certain applications, Ocean use, Smaller boats gain interior room, and smaller cats work great with them.

I haven't even changed the plugs in my '83 merc 200hp in about 10 years...and it lives it's life at about 7000rpms. Water pumps and gear oil changes annually, that's about it.

 

[HighVoltage329]

I still love inboards but the new purpose built true tunnel outboard cats are awesome. They have a great light feel that has to be experienced.

 

[Racey]

I haven't even changed the plugs in my '83 merc 200hp in about 10 years...and it lives it's life at about 7000rpms. Water pumps and gear oil changes annually, that's about it.

Gotta love 2 strokes

 

[rrrr]

From what I've seen on RDP, your teeth get whiter, you lose 20 lbs, your ex-wife remarries and moves to Australia, dogs wag their tails when you walk by, you get a promotion at work, your girlfriend says she's ready to get that boob job, and tells you it's OK to buy a new F-150.

Oh, yeah. I forgot the best part. Now she swallows.