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The Hyper 9 2.0 Pro Buggy
is now stronger, faster and more stable. The many innovative ideas
of the Hyper 9 are now complimented by a longer thinker CNC chassis
and new longer and stronger front arms. On the performance side, the
buggy accelerates harder, corners faster, jumps and lands more
stable then ever before. |
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| Chassis Balance |
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| The engine is toward the center of the
Hyper 9 do to a 40 tooth spur gear and the 13 tooth clutch bell. The
center drive line angles are also straighter, reducing scrub on the
joint pins. |
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| The engine was then angled 25 degrees
toward the center for four reasons. 1. Allowed clearance between
engine mount flange and center drive shaft. 2. Moved weight toward
center of chassis. 3. Lowered center of gravity. 4. Pulled pipe
toward center of chassis. All this combined with the asymmetric
aluminum chassis plate balances the buggy left to right with a half
tank of fuel. |
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| Ground Clearance |
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| Ground clearance has been something
overlooked for years by most 1/8 scale designs. The Hyper 9 chassis
has been shortened for clearance front and rear while keeping the
same wheel base as the Hyper 8.5. The bend for the 10 degree kick up
in the nose has been moved forward as much as possible to increase
clearance. The aluminum chassis plate has been reduced in size, cut
on all four corners, and the side guards have been angled up for
extra clearance. This is especially important when the chassis leans
and squats while entering and exiting corners. |
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| Gearing |
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| The buggy accelerates and has greater
top end speed because of the 11/43 gear combination at the
front/rear gear boxes and the 13/40 combination at the center
differential. The faster spinning center differential also reduces
the torque effect of the engine. |
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| Low Center of Gravity |
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| Here is a list of items on the chassis
that has been lowered for a lower center of gravity; steering servo,
throttle servo, shocks, engine, radio box, center differential, all
brake hardware, shock towers, rear wing, air filter and the fuel
tank. |
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| Better Cornering and
Better Jumping |
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| The Hyper 9 has better matching roll
centers that make the buggy more consistent as the track conditions
change. The buggies reduced weight and high ground clearances allows
the buggy to jump farther (chassis does not scrub off speed on face
of jump) and recovers from landings faster (chassis does not bottom
out as hard). |
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| Front C-Hub and
Steering Knuckles |
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| The C-hub and steering knuckle has been
reduced in size and weight. The kingpin axes are directly in the
center of the front tires. This reduces the shock on the steering
servo when hitting rocks, holes and pipes. Front bump-steer has been
eliminated with longer front tie rods and better alignment. |
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| Note: The steering knuckle is
deceivingly strong for its size. |
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| Front Kick-Up and
Caster |
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| The chassis has a 10 degree kick-up
with 20 degrees total caster. The bend in the kick-up is as far
forward as possible to increase ground clearance aft of bulkhead.
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| Adjustable Ackerman |
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| The ackerman is a very important
adjustment and sometimes overlooked by most racers. The Hyper 9 has
three ackerman positions for steering from mild to wild. The
ackerman is adjusted by changing the ackerman wire in the center of
the servo saver. The 2.8mm ackerman wire is much more reliable and
tighter then a plate with bearings. I knew people were going to
think the wire was cheap, but the performance and reliability proved
to be much better. A great example of when simple is better. |
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| Throttle/Brake
Linkage |
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| The throttle/brake bellcrank is angled
25 degrees inline with the carburetor so no binding occurs. The
bellcrank also allows the servo to be laid down and moved forward
for better weight distribution. The brake linkage is a very simple
wire with a z-bend, not a bunch of little parts held together with
bolts and nuts. Brake bias is very easily adjusted with a nylon nut
on the threaded rod end. Another example of when simple is better. |
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| Low-End Needle Adjustment
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| The low-end needle is very easy to adjust, and in
most cases easier than traditional buggy designs. The body only has
to be lifted a few millimeters and the needle can be seen through
the side window. You also do not need a long screw driver because
the carburetor is closer to the right side of the buggy. Another
plus is the idle stop screw is easier to adjust. |
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| Rear Wing |
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| The rear wing mount is a small block
mounted on the rear shock tower and the formula style wing is held
on by four screws. This greatly reduces the weight and lowers the
CG. A more traditional wing mount is available as an option part
(OFN29032). |
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| Fuel Tank |
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| The fuel tank has filler inserts that
screw down inside to allow the tank to be adjusted to maximum
capacity. The tank lid is designed to provide a perfect seal every
time it is closed even when the tank is hot or cold. This is due to
the newly designed spring touching only the middle of the self
centering lid. |
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| Sway Bar Mounts |
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| Sway bars are held in place by two set
screws angled to allow for different diameter wires and still
eliminate slop. |
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| Miscellaneous |
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| The suspension arm fingers at the outer
ends of the front and rear lower arms are short to eliminate flex. |
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| The differentials have long lasting
steel differential gears. |
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| Rear Toe is adjustable from 2 to 6
degrees total. Rear anti-squat is adjustable from 1,2, and 3
degrees. |
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