Question about Mercury Racing motors?

[WESTERNAERO]

these things are so over priced it's mind boggling.

x's 2...........

[GRADS]

These things are so over priced it's mind boggling.

x's 2...........

They are trying to price out the jet boat crowd.

[gn7]

525 is going away to be replaced by the 540. I admit it is strange to see all these very similar motors and then nothing in between the 700 and 1100. The 850 is still available I believe but only until they sell them all. Last I heard there were still a few left over. But I guess sales dictate production and the 500 to 700 hp market is huge and very competitive.


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They are trying to price out the jet boat crowd.

There is more going on with the engines than just HP.
Look at the front accessory drive package alone on the engines that will be the "base" engines once 525 EFI as no more and the 520 and 540 are the lowest cost of the Merc Racing engines. YOU REALLY THINK THE ACCESSORY DRIVE PACKAGE IS THE ONLY THING DIFFERENT BETWEEN THEM????
I shutter even calling those 2 Merc RACING. More like Mercruser black motors.
The cost is nothing more than raping anybody that can't build an engine or rig a boat. If you can't afford it, you probably shouldn't be armed with it, and certainly don't need it. So if you feel you must have it, bend over and lube up.

[LuauLounge]

My guess...
It is all about financing....
If you were a bank, which option would you want?
Mercury Racing vs Bob's Engine and Fence Building Company

[gn7]

My guess...
It is all about financing....
If you were a bank, which option would you want?
Mercury Racing vs Bob's Engine and Fence Building Company

I have already checked that out. I can drop an engine off at a boat builder and have no problem getting the boat financed. You think the banks know all about Pfaff, Teague, or GT.
Now buying an unrigged bare hull, that's another story. You'll need cash or a personal credit line.

[Sharp shooter]

They are trying to price out the jet boat crowd.

Lol!! Yeah, those jetboat guys are all broke.

[FormulaZR]

After reading the specs of all these engines, here's how I see it: the 525 and 565 are superfluous.

The 520 makes sense, and the 540 is a 520 with headers...so that makes sense as well. The 600 also makes sense for folks who really *want* a supercharger, and the extra power.

The 525 and 565 are not necessary. But even reading the Mercury site, they don't speak "well" of the 525 either.

The other thing is the 520, 540, and 565 (can't find specs for the 525) all have the same CR. The difference between the 540 and 565 is 10 CI (523 vs 533 cid) - although, the 540 is a large bore/shorter stroke than the 565, so if the 540 made the same specific horsepower as the 565, it'd be 555 hp. But, the 540 specifies 87 oct and the 565 specifies 89 oct; so I assume the 540 is slightly less aggressive on the timing.

[gn7]

I think the fuel requirement of the 565 is the result of dynamic compression brought on by 4.25 stroke verses the 4.00. I am thinking the corresponding valve timing to go along with stroke, creates more cranking pressure than the 540. (did you follow that grads?)

You can bet your ass there is a matching cam change and possibly a intake throttle body change on the 540 to along with the exhaust manifold change from the 520.

Its just what you see at work here.

[FormulaZR]

I think the fuel requirement of the 565 is the result of dynamic compression brought on by 4.25 stroke verses the 4.00. I am thinking the corresponding valve timing to go along with stroke, creates more cranking pressure than the 540. (did you follow that grads?)

Good point, I forgot to consider that.

You can bet your ass there is a matching cam change and possibly a intake throttle body change on the 540 to along with the exhaust manifold change from the 520.

I wonder. On the outside looking in, it's sometime hard for me to understand why the Mercury engines are so expensive. On the website/sellsheet, there is very little information provided. I'd love to know the composition of the rotating assembly, cam, and intake/TB specs.

[gn7]

Good point, I forgot to consider that.



I wonder. On the outside looking in, it's sometime hard for me to understand why the Mercury engine are so expensive. On the website/sellsheet, there is very little information provided. I'd love to know the composition of the rotating assembly, cam, and intake/TB specs.

Its not Mercury as in Mercruiser that is so expensive, although even a black Mercruiser is way over priced. But the Merc "RACING" blue engines re-define rape.
The industry is not what it was. I saw it coming when Schuster started laying up Tahiti hulls as fast as the resin would set up and standing hulls on their transoms in the shop waiting for a customer to walk in. Choose your interior and engine and 4 days later you were on the water. 5500 out the door. 90% of them were crate Olds engines with a few Harman marine 427 or 454s with a oil pan change and some plumbing changes to make them work. The crate engines from GM were dirt cheap. And they sold a zillion of them to every person that wanted a boat but need instructions included when he bought a screwdriver. And it only got worse and worse.
You wanted to go 100 in 1968, you better know how to build a boat. Now, you need to know how to write a check.

I chuckle at the thought that Merc gets that kind of money for a warranty. That's all they are buying.
Once I learned what was being used in the 1350/1650 twin cam engine, it pretty much told you whats NOT in the 565 or 600, let alone the 520 and 540.

This is the crank in the 1350/1650. I assure you, its NOT a Sonny Bryant or Winberg.
I am almost certain it is a Lunati. Its most likely a "Pro" but Merc's replacement cost is $6000.00 A Lunati Pro crank is about 1700.00
A Sonny Bryant EN30B billet is less than 4000.00 LIST!! and nobody pays list!!
The rods are even worse, in that I'am pretty sure they are Lunati H beam IMPORT rods!!!
The pistons are 476 apiece, head gasket is 373 EA, and these are the "online discount" prices.

For 6000 this should look like jewelry.



This is a Sonny Bryant billet.
ANY QUESTIONS?