Why is it that no matter
how hard a watercraft manufacturer tries to
design and please the masses, there’s always
somebody who is never quite satisfied with
out-of-the-crate performance? Well, since it is
impossible to please every individual, this
leaves a wide-open parts emporium for the
It’s no doubt that
Sea-Doo’s XP800 is a high-performance dream come
true, but the fact is they all have a severe
porpoising problem. With the general focus being
speed, handling is of utmost importance. For the
most part, 800’s handle very well in the turns,
but when the water turns a bit rough, that
aggravating porpoising effect takes over. Once
this happens you either have to back off the gas
or hope the water miraculously smoothes out.
Since backing off the gas is the logical
solution, it still doesn’t solve anything! The
high performance people at R&D Racing have
developed a kit that puts an end to that
annoying up-and-down, hopping action. This way
you can concentrate on keeping the throttle
opened and rocketing across the choppy water!
WHAT'S IT ALL
all got to do with handling. The smoother your
craft goes across the water, the greater your
overall control and of course fun factor. R&D's
extender kit consists of three basic components:
"Wings" if you really want to get technical.
Their three-piece kit is a simple bolt-on kit,
which extends the planing area at the lower rear
area of the hull. This subtle, yet effective
increase dramatically reduces overall porpoising,
at any speed. The second feature of the kit has
to do with the reduction and steering nozzles.
Both nozzles are available in a wide range of
bore dimensions. For overall improvement, R&D
Racing recommends the use of an 87mm exit, 89mm
steering combination. This is ideal for most
recreational users. If you've already equipped
your 800 with a few engine hop-up modifications,
then an 85mm exit, 88mm steering nozzle setup
are what they suggest. All these components can
be purchased separately or as a complete kit.
Of course, the best way to achieve greater
control and handling is to stick with the
According to owners
Bill Chapin and Glenn Dickinson, their complete
kit XP 800 also improves top-end speed, because
of the greater handling effects of the craft.
The best part about this package is that any
rider can benefit from these bolt-on changes.
You don't need to be an all-out racer,
recreational riders will notice that their
ability to become more aggressive is accompanied
by less porpoising. R&D Racing also manufactures
their exclusive, patented "Aqua-Vein" intake
grate. Bill says that if you want your 800 to
remain under total control in rough water, you
must start from the pump inlet area, then
proceed to the rear nozzle and hull area.
Fortunately, R&D Racing makes all these
components and they're easy enough for the user
to bolt-on themselves.
For more info about
any XP 800 mods or a free color catalog, call or
write, R&D Racing 10504 Norwalk Blvd.
Santa Fe Springs, CA 90670
(562) 906-1190 or fax (562) 941-5563