Originally Posted by SteveHall
I guess I am going to sound stupid now, but what's the difference between a standard and a HO? Other than id rather have a HO than a standard...
Looking at the 150 and 150 HO?
With a 20" Shaft they both weigh 190kg, both go upto 5850RPM..
Is the HO at the higher end of the 10% power variance allowed, so a 150 could have 143hp but a HO could be 159?
Essentially yes. It's for the American bass boat tournament market where those 9hp make a big difference, and Mercury have XS and Yamaha Vmax. For a deep v rib there isn't much point IMHO, however the arguement is different between the 200 and the 200HO because there is a big difference in power and torque as one is 2.6L and the other 3.3L. Some of the HOs also have different gearboxes and gear ratios better suited for the bass boat type hulls although this is no longer the case for the 250HO.
It all depends on the boat really, in my opinion the best engine Evinrude makes is the 200. It is so light and so powerful it's awesome. However going up 30kg on a heavier boat may make sense as the torque difference is large.