Mercury Through The Years...

[FMP]

Yes, skill above other factors.
Still a good speed considering hp

[peterse90]

100 kph equals 62 mph. Way back in the late 70's our SE class 5-mile record in Valleyfield was about 65mph.
Apparently they run these 60 four strokes with the gear case virtually out of the water and external water pick-ups are allowed.

[WaterZebra]

100 kph equals 62 mph. Way back in the late 70's our SE class 5-mile record in Valleyfield was about 65mph.
Apparently they run these 60 four strokes with the gear case virtually out of the water and external water pick-ups are allowed.

I thought those gearcases looked really high in the photos. Kudos to them for thinking out of the box for external water pick-ups and not being fixated on what "stock" means. Their decision on the water pick-ups is a lot smarter than the APBA guys who were DQ'd for using pre-hardened (worn) impellers in their water pumps only to be "caught" by moronic inspectors who micro-managed trivial issues like this one. One of the foremost issues why I quit racing. What does one of these 4 stroke / 60 hp "SE" hulls cost these days? My guess would be $10-$15K?

[powerabout]

so whats the problem with the sst45, way cheaper, large class that has lasted for years.
In typical UIM EU fashion that class with the 60 will disappear over nite if Merc stop making that engine.

[Capt.Insane-o]

There is nothing wrong with the current 45 class, seaway is making parts and **** the chinese motors.

[Capt.Insane-o]

1951...and still purs along

[Mark75H]

1951...and still purs along

That's what them green pumpkins on a stick were made for

[2us70]

The Merc 1500s had a problem with water pressure issue. When they were run at very high transom heights on some boats they would cook the top cylinders. The 850s did not seem to have the same problem. Same gear case ,same water pump. Just not so far to lift the water.UOTE=peterse90;3124122]100 kph equals 62 mph. Way back in the late 70's our SE class 5-mile record in Valleyfield was about 65mph.
Apparently they run these 60 four strokes with the gear case virtually out of the water and external water pick-ups are allowed.[/QUOTE]

[Mark75H]

I think it was all about the water inlet height, not the height of the block

[2us70]

I am pretty sure the 1500 and the 850 shared the same gear case castings and used the same water pumps and had the same water inlets on the strut section. The difference between them was in the gear ratios. The 850s had a higher reduction ratio enabling them to use the same props as the 1500s. A similar situation to the 3 cyl Merc 650s and the 4cyl 500s. All of the propellers I ran on my Merc 500 powered SD boat were taken from my previous 650 powered EP boat

[FUJIMO]

[FUJIMO]

[FUJIMO]

[FUJIMO]

[FUJIMO]

Popeyes V-Bottom Offshore...