Most are aware of the 150 Twin Counter Rotating Prop
bass motor - The TRP V-Max.
We have had many hours of running time setting up this motor on
different platforms. This baby is the hottest 150 available today
but it has some very unique characteristics that you need to be aware of
to maximize your performance. Understand that at Nichols Marine we
are not a "high performance" dealership. We are,
however, a "maximum performance" dealer. What this means
is that if you want to modify the propshaft HP of your engine we are not
the people to talk to. If you do want some free and helpful advice
on maximizing the performance of your Yamaha powered Champion
(regardless of where you bought it) through jackplates, props and other
setup tips, you have come to the right place.
Now, read on and we will teach you how to
"Harness the Beast".........
Remember, the TRP has a midsection that is over
2" shorter than a standard 150 and has a factory supplied low water
pick-up and a crescent leading edge type gearcase. The props are
two counter rotating surfacing "chopper" type
propellers. This would imply that the motor will run considerably
higher than your present motor. However, this is not always
true. The TRP motor is very weight sensitive and will run
best at various heights under different load conditions. Load your
boat exactly as you intend to run it 90% of the time, (i.e., 2 people,
full gas, 80 lbs. tackle, etc.,) Install the motor on a
jackplate. Start out so the relationship (distance) between the
pad and the propshaft is the same as your old motor. When in doubt
just set it as low as possible. Then run the boat and verify with
radar or GPS (your speedometer is a joke, trust me.) Raise in
1/4" increments until your speed begins to decrease and your RPM's
continue to increase. Then go back down by 1/8" increments
until you find the "sweet spot".
Don't worry if in the
beginning you got some wild or weird torque, it will go away as the
motor gets dialed in. I believe this height sensitivity is caused
by the current props not having any cup (we will tell you the reason for
that another day). But, before you let your local prop yahoo start
banging on your blades, there is something that you should know.
Any imbalance or difference in "prop bite" between the two
props will result in steering torque resuming. But don't worry,
your TRP will still kick everyone's butt.
Rico Silvera Nichols Marine