> Description
Serpent 733, new design approach
The Serpent 733 has a new, very distinct open design and sets new standards in 1/10 scale race-chassis design.
Many
innovative and practical solutions are build into the unique design, to
make assembly, set-up, racing and maintenance a joy !
Geometry
New geometry and roll-centers, lower center of gravity and modified weight-positioning for improved grip and better balance.
Adjustable caster, camber, toe-in, width, wheelbase front and rear, ride-height, roll centers and more.
Front end brackets
Alu front lower bearing blocks and suspension brackets, with
integrated anti-roll bar holders and integrated alu middle bearing
block. The gear-diff is seated in eccentric nylon bushings to set the
belt-tension. The right position ( choice of 4) of the eccentric
bushings can be recognised from the outside, for easier re-assembly. The
lower front end brackets have steel pins pre-mounted which slide into
the slots in the chassis, for precise positioning.
Rear-end brackets
Very open design split type rear end assembly. The supersmall and
light gear-diffs mount very low in the car, in precision machined split
type alu brackets. The gear-diff is seated in eccentric nylon bushings
to set the belt-tension. The right position ( choice of 3) of the
eccentric bushings can be recognised from the outside, for easier
re-assembly.
The lower rear end brackets have steel pins pre-mounted which slide into the slots in the chassis, for precise positioning.
The very open design leaves lots of space for maintenance, cleaning and cooling.
Chassis
The 3mm chassis is made of precision machined aerospace quality
7075 T6 alu. Countersunk and with chamfered edges. Some extra
machining where needed for the belt, the engine with airscoop for
cooling, for the flywheel and some extra space to allow the moutning
the transponder below the fueltank.
The very closed design of
the chassis creates the right level of rigidity in the car. More
flex-control is offered with the alu stiffners on the chassis.
A laser-angraved logo is the finishing touch.
Engine mount
The main upper engine mount is secured to the engine, and this
bracket is then mounted to the 2 lower chassis-stiffners . The system
allows for precise alignment of the clutch and 2-speed gearbox.
Chassis stiffners – flex control
The main chassis-stiffner is the nylon one which is mounted between
the radioplate and the left 2-speed bracket. 2 machined alu chassis
stiffners are placed on the chassis, below the engine. The rear one,
with the longer legs, can be either fastened with just 2 of the 4
screws, or with 2 or all 4. Same for the frtn one. The more screws are
fastened the less flex will appear.
Suspension front
New front upper and front lower wishbones, made from superb nylon
materials and have an excellent fit on the hardened steel pivot pins.
The lower wishbones houses the hard-coated alu pivot-ball, which
operates the front anti-roll bar. The wheelbase can be changed in the
front by using the small caster-spacers in front or back of the lower
front wishbone. In the top ofcourse change caster in the same way. The
roll-center changes can be made by changing the inner pivot inserts for a
lower, medium or higher position, depending on the situation.
Front upper bracket
The nylon upper bracket, connect the front alu bearing blocks, holds
the carbon fibre shocktower and the upper hinge pin inserts and
incorporates the downstops. To take out the diff takes 4 screws only.
Steeringblocks
The kit comes with the strong prooven steeringblocks of the 720, with off-set 0. Offset 1 is available as option.
The
steeringblocks mount to the wishbones with light-weight coated alu
8.5mm pivotballs, and use the nylon ball-cups for an ultra light and
ultra smooth suspension process
Anti-roll bar front
Ball-raced wire type front anti-roll bar system, more efficient and
easier to tweak. Operated by linkages that mount to alu pivotballs on
the ower front arms.
2.5mm is standard, other options. 1.8, 2.2 and 2.8
Shocktower front
Carbon fibre front shocktower in 3.2mm with 4 positions for the front shocks. Includes holes to mount the 3rd bodymount.
Shocks
Pre-assembled RCCX shock-sets. Short type both front and rear, also
short springs front and rear. With the 2009 modification on
rod-support and silicone x-ring for supersmooth shocks. SS-steel
shock-rods, precision machined coated shock-housings, foam bleeders,
precision moulded nylon pistons and shock-parts. The spring pre-load nut
has a silicone o-ring inside to prevent unwanted change.
Use 1000 Cst (40W) shock-oil as enclosed for standard set-up both front and rear.
Gear-differential.
Extremely small and light gear differential, seated as low as
possible in the 733. The same gear-diff is used in the front and rear of
the car, just different pullies are mounted. High quality, precision
machined , hardedned gears, combined with SS-steel shafts, create a
supersmooth gear-diff. The gear-cases are sealed with a captured
o-ring. The SS-steel precison machined outdrives are lightened to
decrease rotating mass further. For standard set-up use 80.000 Cst
front and 30.000 Cst rear oil, as provided.
Its very easy and fast to take the diffs out of the car.
Front Diff - 35
Rear Diff - 40
Middle Pulley - 18
Middle Side Pulley - 21
Rear Side Pulley - 21
Brake Pulley - 20
Drive ratio 1.0117
Centax
The Serpent 733 comes with the famous Centax clutch ( an original
Serpent innovation) . The ultra reliable Centax III WC version comes
with precison machined, hardcoated alu screw on gears ( laser engraved)
mounted on a hardened steel clutch-bell.
A very small and
light 31mm hardcoated alu flywheel with precision mounted steel pins.
Race developed clutch shoe and flyweights, combined with a hard Centax
spring, to create a superb working clutch for amazing accelleration and
durability.
Ball-joints
High quality nylon ball-joints for precision fit on the pivot balls.
All balljoints of the car are on one larger frame inside the kit. Some
have TOP as indication, to show which direction to mount them for best
operation.
Gearbox
Ulta smooth gear-changes are provided by the WC type Light-Compact
(LC) automatic 2-speed gearbox, which combines perfectly with the Centax
III-WC system.
Precision machined 2-speed bell and one-way
adaptor, combined with durable centrifugal shoes mounted on the SS-steel
polished adaptor. Balanced SS-steel 2-speed layshaft.
Belt tensioner
Alu CNC machined belt-tensioner bracket, that can mount on top or below the radioplate. Ballraced.
Driveshafts / wheel-adaptors
The front end has SS-steel CVD system, with laser engraved, ultra
thin and light driveshafts, combined with durable wheel-axles and
precision machined alu hex wheel adaptors.
The rear end has SS-steel
dogbones also thin/lightweight, yet durable, to stand the beating of
the ever increasing horsepower and grip-levels.
Belts
Kevlar 4mm wide re-inforced drive-belts. Orange PU type belts are
standard (the black/brown low friction rubber type are optional, but for
the 1st batch the rubber ones are used).
Fueltank
Low-mounted 75cc fueltank with bronze sintered filter with AFL-cap,
moved more to the front and offers a mounting-position for AMB
transponder on the bottom. Small side indent to provide space for the
throttle lever. Tank-inserts can be screw-mounted inside to decrease the
contents if needed. Tanks mounts on 3 alu posts, with rubber covers,
capped with silicone o-ring and small clips.
Roll-bar
Asymetric roll bar with integrated sleeve for the fuel-cap strap. The
roll bar doubles also as end-stop for the fuel-cap, to prevent the cap
to open too far.
Pipe-mount
Machined alu pipe-mount holds the spring-wire , which is attached to the radioplate. Grub-screw holds wire in place.
Bumper
The innovative and nice looking new bumper sports a split type foam
bumper, and the angled upper bumper creates a very sturdy front end, to
absorb the impact of crashes ( if any). ( A wider foam bumper is
provided as optional.)
Servo-saver
Ball-raced servo-saver design, with the steel servo saver shaft
mounted on the chassis only, spring-loaded with pre-tension nut and easy
inserts to change Ackermann. The linkages to the steering-servo are
short and angles are smooth / direct and easy to access, as mounted
above the radioplate.
Combined with the ultra strong SS-steel
trackrods and smooth ball-joints, the assembly creates a very effective
and responsive steering-system.
Pullies
New gear-ratio combined with new pullies with small sideholes to let
dirt out easily. Friction free and very smooth operation.
Front Diff - 35
Rear Diff - 40
Middle Pulley - 18
Middle Side Pulley - 21
Rear Side Pulley - 21
Brake Pulley - 20
Drive ratio 1.0117
Middle shaft
The middle shaft holder is beautifully integrated in the front left
alu bracket and secured with 3 screws. This offers strong, flex-free
guidance to the SS-steel middle shaft.
2-speed shaft brackets
The 2 alu brackets to hold the 2-speed shaft are true works of art.
By separating them from the rear end brackets, it creates lots of open
space to work on the car and gives better way for cooling too. In the
top the brackets support the ball-raced rear anti-roll bar, which is
seated in the brackets with small steel adaptors and high speed
bearings. The left one also houses the ball-raced brake-cam and supports
the chassis stiffner too. Multi-functional.
Shocktower rear
4mm thick carbon fibre rear shocktower with 6 mounting positions for
the shocks. The holes are positioned in such way, that when changing to
to another hole, the length of the shocks can remain the same. The
shocktower includes holes to mount the tank-cap strap, as well as
mounting positions for the rear body mounts.
Uprights
New uprights to suit the new geometry. Allows for 2 mounting
positions in the top, inner or outer and the kit comes complete with
conical spacers to change roll-center.
Rear suspension
The new rear lower wishbones can be used both left and right. The
anti-roll bar linkage has 2 mounting positions to choose from. The rear
carbon camber bracket in 4mm thick material , has 9 positions to choose
from, 5 inner and 4 outer each side. The roll-center changes can be
made by changing the inner pivot inserts for a lower, medium or higher
position, depending on the situation.
Wheel-base can be changed by using the casterclips in front or back of the wishbone on the lower pin.
Brake
A very accessible and cool brake system, with 2 large ventilated
steel disks, with one machined alu cooling-fin in the middle ( also
used successfully on the Serpent 966) . The brake-system is mounted
very low in the car for better center of gravity. Spring –loaded race
pads that slide on precision machined bushings. The race brake-pads are
ready to use with pre-baked friction material ( no more glueing ) that
lasts and offers incredible braking power with excellent brake feeling /
feedback. Reaches right temperature quickly, has no fading and works
well in the rain too. The nylon brake lever, that operates the
hard-anodised ballraced brake-cam, has 2 mounting positions for the
linkage. The linkage runs very straight to the servo-arm.
Radioplate
The very short and narrow radioplate is made of 2.5mm high quality
carbon fibre material and ads to the overall stiffness of the car. The
overall design is made in such way that the complete radioplate with
tank, roll-bar, belt-tensioner and all electronics comes out of the car
in one go. Just release the steeringlever and release 7 screws. Ideal
for cleaning and maintenance. All wiring very short and compact to
mount. Straight aligned servo-linkages to both brake and throttle
levers.
Radio-gear and battery mounting
The 733 provides a neatly designed side-bracket-assembly that offers
mounting space for the receiver, the switch, the antenna and both
servo’s. The receiver goes into the nylon box with embossed Serpent
logo. On the opposite side of the tank, the battery ( Lipo or regular
pack) is mounted to a carbon fibre bracket (shrink-foil/tape) , which
again mounts to the radioplate with nylon spacers.
This very
compact design means you can use very short cables and when mounted
correctly hardly any cables are visible from the outside, but house well
protected inside the car. The steering-servo bracket offers another
mounting position ( 2 holes) for the transponder in case that is
prefered instead of the lower mounting position under the tank.
Spacers are provided to correctly mount the servo’s, as well as 3 types servo levers to suit all major brands.
Bearings
High speed stainless steel bearings throughout the car, lightweight
and lubricated with high quality Shell bearing oil. High quality
one-way bearing for the 2-speed adaptor.
Fasteners
Allen type high quality steel screw throughout the car.
Manual / set-up sheet / decals
Manual
State of the art, full color manual with all assembly steps
and tips. Each bag in the kit-box follows the steps in the manual.
The integrated reference guide in the back, shows all exploded views
and part-number and full parts-list too. The parts-list also shows the
currently available optionals parts.
A set-up sheet is inserted
with a standard set-up and a blank one too. Other set-ups will be
published in the 733 product-page on serpent.com under set-ups.
The kits includes 2 decal-sheets with Serpent and 733 logo’s.
Optionals
A line of optionals will be offered to further improve an already
superb car, or just for the looks. More info in the optionals page.
Tyres, wheels, radio-equipment, engine and pipe-system are not included.
More pictures in the image gallery.
Developed, engineered and tested by Michael Salven, in close cooperation with Team Serpent drivers.
Serpent
The racing experience
Rear-end brackets
Very open design split
type rear end assembly. The supersmall and light gear-diffs mount very
low in the car, in precision machined split type alu brackets. The
gear-diff is seated in eccentric nylon bushings to set the belt-tension.
The right position ( choice of 3) of the eccentric bushings can be
recognised from the outside, for easier re-assembly.
The lower rear end brackets have steel pins pre-mounted which slide into the slots in the chassis, for precise positioning.
The very open design leaves lots of space for maintenance, cleaning and cooling.
Chassis
The
3mm chassis is made of precision machined aerospace quality 7075 T6
alu. Countersunk and with chamfered edges. Some extra machining where
needed for the belt, the engine with airscoop for cooling, for the
flywheel and some extra space to allow the moutning the transponder
below the fueltank.
The very closed design of the chassis
creates the right level of rigidity in the car. More flex-control is
offered with the alu stiffners on the chassis.
A laser-angraved logo is the finishing touch.
Engine mount
The
main upper engine mount is secured to the engine, and this bracket is
then mounted to the 2 lower chassis-stiffners . The system allows for
precise alignment of the clutch and 2-speed gearbox.
Chassis stiffners – flex control
The
main chassis-stiffner is the nylon one which is mounted between the
radioplate and the left 2-speed bracket. 2 machined alu chassis
stiffners are placed on the chassis, below the engine. The rear one,
with the longer legs, can be either fastened with just 2 of the 4
screws, or with 2 or all 4. Same for the frtn one. The more screws are
fastened the less flex will appear.
Suspension front
New
front upper and front lower wishbones, made from superb nylon materials
and have an excellent fit on the hardened steel pivot pins. The lower
wishbones houses the hard-coated alu pivot-ball, which operates the
front anti-roll bar. The wheelbase can be changed in the front by using
the small caster-spacers in front or back of the lower front wishbone.
In the top ofcourse change caster in the same way. The roll-center
changes can be made by changing the inner pivot inserts for a lower,
medium or higher position, depending on the situation.
Front upper bracket
The
nylon upper bracket, connect the front alu bearing blocks, holds the
carbon fibre shocktower and the upper hinge pin inserts and incorporates
the downstops. To take out the diff takes 4 screws only.
Steeringblocks
The kit comes with the strong prooven steeringblocks of the 720, with off-set 0. Offset 1 is available as option.
The
steeringblocks mount to the wishbones with light-weight coated alu
8.5mm pivotballs, and use the nylon ball-cups for an ultra light and
ultra smooth suspension process
Anti-roll bar front
Ball-raced
wire type front anti-roll bar system, more efficient and easier to
tweak. Operated by linkages that mount to alu pivotballs on the ower
front arms.
2.5mm is standard, other options. 1.8, 2.2 and 2.8
Shocktower front
Carbon fibre front shocktower in 3.2mm with 4 positions for the front shocks. Includes holes to mount the 3rd bodymount.
Shocks
Pre-assembled
RCCX shock-sets. Short type both front and rear, also short springs
front and rear. With the 2009 modification on rod-support and silicone
x-ring for supersmooth shocks. SS-steel shock-rods, precision machined
coated shock-housings, foam bleeders, precision moulded nylon pistons
and shock-parts. The spring pre-load nut has a silicone o-ring inside to
prevent unwanted change.
Use 1000 Cst (40W) shock-oil as enclosed for standard set-up both front and rear.
Gear-differential.
Extremely
small and light gear differential, seated as low as possible in the
733. The same gear-diff is used in the front and rear of the car, just
different pullies are mounted. High quality, precision machined ,
hardedned gears, combined with SS-steel shafts, create a supersmooth
gear-diff. The gear-cases are sealed with a captured o-ring. The
SS-steel precison machined outdrives are lightened to decrease rotating
mass further. For standard set-up use 80.000 Cst front and 30.000 Cst
rear oil, as provided.
Its very easy and fast to take the diffs out of the car.
Front Diff - 35
Rear Diff - 40
Middle Pulley - 18
Middle Side Pulley - 21
Rear Side Pulley - 21
Brake Pulley - 20
Drive ratio 1.0117
Centax
The
Serpent 733 comes with the famous Centax clutch ( an original Serpent
innovation) . The ultra reliable Centax III WC version comes with
precison machined, hardcoated alu screw on gears ( laser engraved)
mounted on a hardened steel clutch-bell.
A very small and light
31mm hardcoated alu flywheel with precision mounted steel pins. Race
developed clutch shoe and flyweights, combined with a hard Centax
spring, to create a superb working clutch for amazing accelleration and
durability.
Ball-joints
High quality nylon
ball-joints for precision fit on the pivot balls. All balljoints of the
car are on one larger frame inside the kit. Some have TOP as indication,
to show which direction to mount them for best operation.
Gearbox
Ulta
smooth gear-changes are provided by the WC type Light-Compact (LC)
automatic 2-speed gearbox, which combines perfectly with the Centax
III-WC system.
Precision machined 2-speed bell and one-way
adaptor, combined with durable centrifugal shoes mounted on the SS-steel
polished adaptor. Balanced SS-steel 2-speed layshaft.
Belt tensioner
Alu CNC machined belt-tensioner bracket, that can mount on top or below the radioplate. Ballraced.
Driveshafts / wheel-adaptors
The
front end has SS-steel CVD system, with laser engraved, ultra thin and
light driveshafts, combined with durable wheel-axles and precision
machined alu hex wheel adaptors.
The rear end has SS-steel dogbones
also thin/lightweight, yet durable, to stand the beating of the ever
increasing horsepower and grip-levels.
Belts
Kevlar
4mm wide re-inforced drive-belts. Orange PU type belts are standard
(the black/brown low friction rubber type are optional, but for the 1st
batch the rubber ones are used).
Fueltank
Low-mounted
75cc fueltank with bronze sintered filter with AFL-cap, moved more to
the front and offers a mounting-position for AMB transponder on the
bottom. Small side indent to provide space for the throttle lever.
Tank-inserts can be screw-mounted inside to decrease the contents if
needed. Tanks mounts on 3 alu posts, with rubber covers, capped with
silicone o-ring and small clips.
Roll-bar
Asymetric
roll bar with integrated sleeve for the fuel-cap strap. The roll bar
doubles also as end-stop for the fuel-cap, to prevent the cap to open
too far.
Pipe-mount
Machined alu pipe-mount holds the spring-wire , which is attached to the radioplate. Grub-screw holds wire in place.
Bumper
The
innovative and nice looking new bumper sports a split type foam bumper,
and the angled upper bumper creates a very sturdy front end, to absorb
the impact of crashes ( if any). ( A wider foam bumper is provided as
optional.)
Servo-saver
Ball-raced servo-saver
design, with the steel servo saver shaft mounted on the chassis only,
spring-loaded with pre-tension nut and easy inserts to change Ackermann.
The linkages to the steering-servo are short and angles are smooth /
direct and easy to access, as mounted above the radioplate.
Combined
with the ultra strong SS-steel trackrods and smooth ball-joints, the
assembly creates a very effective and responsive steering-system.
Pullies
New gear-ratio combined with new pullies with small sideholes to let dirt out easily. Friction free and very smooth operation.
Front Diff - 35
Rear Diff - 40
Middle Pulley - 18
Middle Side Pulley - 21
Rear Side Pulley - 21
Brake Pulley - 20
Drive ratio 1.0117
Middle shaft
The
middle shaft holder is beautifully integrated in the front left alu
bracket and secured with 3 screws. This offers strong, flex-free
guidance to the SS-steel middle shaft.
2-speed shaft brackets
The
2 alu brackets to hold the 2-speed shaft are true works of art. By
separating them from the rear end brackets, it creates lots of open
space to work on the car and gives better way for cooling too. In the
top the brackets support the ball-raced rear anti-roll bar, which is
seated in the brackets with small steel adaptors and high speed
bearings. The left one also houses the ball-raced brake-cam and supports
the chassis stiffner too. Multi-functional.
Shocktower rear
4mm
thick carbon fibre rear shocktower with 6 mounting positions for the
shocks. The holes are positioned in such way, that when changing to to
another hole, the length of the shocks can remain the same. The
shocktower includes holes to mount the tank-cap strap, as well as
mounting positions for the rear body mounts.
Uprights
New
uprights to suit the new geometry. Allows for 2 mounting positions in
the top, inner or outer and the kit comes complete with conical spacers
to change roll-center.
Rear suspension
The
new rear lower wishbones can be used both left and right. The anti-roll
bar linkage has 2 mounting positions to choose from. The rear carbon
camber bracket in 4mm thick material , has 9 positions to choose from, 5
inner and 4 outer each side. The roll-center changes can be made by
changing the inner pivot inserts for a lower, medium or higher position,
depending on the situation.
Wheel-base can be changed by using the casterclips in front or back of the wishbone on the lower pin.
Brake
A
very accessible and cool brake system, with 2 large ventilated steel
disks, with one machined alu cooling-fin in the middle ( also used
successfully on the Serpent 966) . The brake-system is mounted very low
in the car for better center of gravity. Spring –loaded race pads that
slide on precision machined bushings. The race brake-pads are ready to
use with pre-baked friction material ( no more glueing ) that lasts and
offers incredible braking power with excellent brake feeling / feedback.
Reaches right temperature quickly, has no fading and works well in the
rain too. The nylon brake lever, that operates the hard-anodised
ballraced brake-cam, has 2 mounting positions for the linkage. The
linkage runs very straight to the servo-arm.
Radioplate
The
very short and narrow radioplate is made of 2.5mm high quality carbon
fibre material and ads to the overall stiffness of the car. The overall
design is made in such way that the complete radioplate with tank,
roll-bar, belt-tensioner and all electronics comes out of the car in one
go. Just release the steeringlever and release 7 screws. Ideal for
cleaning and maintenance. All wiring very short and compact to mount.
Straight aligned servo-linkages to both brake and throttle levers.
Radio-gear and battery mounting
The
733 provides a neatly designed side-bracket-assembly that offers
mounting space for the receiver, the switch, the antenna and both
servo’s. The receiver goes into the nylon box with embossed Serpent
logo. On the opposite side of the tank, the battery ( Lipo or regular
pack) is mounted to a carbon fibre bracket (shrink-foil/tape) , which
again mounts to the radioplate with nylon spacers.
This very
compact design means you can use very short cables and when mounted
correctly hardly any cables are visible from the outside, but house well
protected inside the car. The steering-servo bracket offers another
mounting position ( 2 holes) for the transponder in case that is
prefered instead of the lower mounting position under the tank.
Spacers are provided to correctly mount the servo’s, as well as 3 types servo levers to suit all major brands.
Bearings
High
speed stainless steel bearings throughout the car, lightweight and
lubricated with high quality Shell bearing oil. High quality one-way
bearing for the 2-speed adaptor.
Fasteners
Allen type high quality steel screw throughout the car.
Manual / set-up sheet / decals
Manual
State
of the art, full color manual with all assembly steps and tips. Each
bag in the kit-box follows the steps in the manual. The integrated
reference guide in the back, shows all exploded views and part-number
and full parts-list too. The parts-list also shows the currently
available optionals parts.
A set-up sheet is inserted with a
standard set-up and a blank one too. Other set-ups will be published in
the 733 product-page on serpent.com under set-ups.
The kits includes 2 decal-sheets with Serpent and 733 logo’s.
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