Why do they have 5 motors all within 80 H.P. of each other? Now they have the 520, 525, 540, 565 and the 600.
http://www.mercuryracing.com/sterndrives/
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Why do they have 5 motors all within 80 H.P. of each other? Now they have the 520, 525, 540, 565 and the 600.
http://www.mercuryracing.com/sterndrives/
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Which one are you putting in your new boat?
That doesn't seem to make much sense. I wonder what the price difference is between a 520 and a 600?
I believe the 525 is being phased out in favor of the 540. But all the others, its just like eliminator having Daytona's at 25, 26, 27, 28, and 30. 25, 27, and 30 would make sense to me.
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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Not sure what the 600 goes for but the 520 is $15k over the 502 and $15k less than the 525.
These things are so over priced it's mind boggling. :thumbsdown
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.
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
Lol!! Yeah, those jetboat guys are all broke. Attachment 33474Attachment 33475Attachment 33476
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.
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.