Serpent Cobra GT 3.0 1/8 4wd

Main new features
New XLi superlight 2-speed gearbox
New aluminium middle bearing blocks ( holding brake and 2-speed)
New front front and front rear aluminium suspension holders
New Alu c-hubs in 6 degree version
New aluminium, uprights for new rear geometry
New alu shockabsorber risers front and rear
New 4.5mm carbon shocktowers front and rear

EXPLAINING THE NEW FEATURES:

New XLi superlight 2-speed gearbox
The XLi gearbox comes from the Viper 977-Evo kit and is well proven for performance and durability, as well as ease of setting. The lower inertia will make you accellerate faster.

New aluminium middle bearing blocks ( holding brake and 2-speed)
To hold the new 2-speed gearbox/shaft as well as the existing double brake system newly designed superlight aluminium bearingblocks are designed.

New front and front rear aluminium suspension holders
These are designed to change the pivot pin angle, so the lower wishbones will be more straight, which geometry suits onroad racing better.

New Alu c-hubs in 6 degree version
The new alu c-hubs are needed to make maximum use of the new pivot pin / wishbone angle.  CNC-machined from 7075 T6 aluminium, laser engraved  and black anodised units.

New aluminium, uprights for new rear geometry
To allow a better onroad geometry we designed these new CNC machined aluminium uprights, black anodised and laser engraved.

New alu shockabsorber risers front and rear
The durable machined alu shock-risers front and rear allow for a more onroad aimed angle of the shockabsorber creating more overall grip and more predictable cornering. 

New lower shocktowers front and rear
The new 4.5mm lower carbon fibre shocktowers also accommodate the new shock angles, with a choice of 5 holes for further fine-tuning.

INTRODUCTION:

The Serpent Cobra GT is the most popular brand in GT racing and its performance  is proven by many big racewins in the highly competitive race scene for GT’s in America.  The Cobra GT 3.0 is the latest development stage of the Cobra GT platform, which is running successfully for over 5 years  with very small changes only.  Below we show the key updates to the GT to continue its strong performance  and famous durability.
The Cobra GT is a combined design effort by Billy Easton and Michael Salven, in cooperation with our USA team-drivers Desoto and Morganti.

CHASSISPLATE:

Chassisplate in  3mm  7075 T6 aluminium , with machined pockets to create flex and or make lighter. Kick-up angle on front as need due to the race-rules. Countersunk holes. Slots to locate the  front and rear suspension mounts precisely.  Angled sides to increase stiffness. Open pockets to access flywheel and 2-speed gearbox.  Laser engraved Cobra GT logo.   

BUMPER:

Captured foam bumper set, with wide foam bumper and strong upper and lower bumper-plate.    

CHASSIS STIFFNERS:                                

CENTRAL DISK BRAKE SYSTEM:

Very low and centrally placed brake system for low centre of gravity with ventilated glassfibre brake disks, combined with thick steel plates which wont bend under pressure.     

RADIO BOX:

Composite radiobox which offers space for the lay-down steering servo and  the upright placed brake-throttle servo. Sufficient spacers are supplied for correct fitting of the servo’s.  The receiver and battery can be placed safely under the large cap. The transponder can be mounted in the central part, between servo and receiverbox.  

STEERING BLOCK ASSEMBLY:

Composite steeringblocks combined with 10 dgr C-hubs for precise steering.

Spring steel wheel-axles with large size bearings 8x18x5 and 15x21x4, with precision threaded aluminum wheel-hubs with +3 offset.

Flanged wheel nuts to guarantee that you will not loose a wheel nut in a race.   

SERVO ARMS AND LINKAGES:

The servo arms have a splined insert to have the right fit per brand. The linkages runs very clean and tight and are easy to access to modify settings.   

SUSPENSION BRACKETS:

Beautifully machined  7075 T6  suspension brackets in anodized, laser engraved. Precision fit for the nylon roll center inserts  and pivot balls / pins.  The GT 3.0 front suspension brackets make the pivot-pin and lower arm more horizontal, which improves handling and steering.  

FRONT SUSPENSION:

Durable oversized  lower suspension arms in strong composite nylon. On the lower side the special downstops screws are mounted. The lower shock-mounting pins are secured with a small grubscrew from the bottom.

FRONT ANTI-ROLL BAR:

The ballraced front anti-roll bar  system, consist of a spring steel bend wire, which is guided through the diff-cases and run in ballraced steel adaptors.  The wire is linked to the lower suspension arm, with a captured adjustable threaded pivotball, for very precise and low friction operation.

SHOCKTOWER AND BODYMOUNTS FRONT / ALU SHOCK RISERS:

Shocktower and bodymounts front  / alu shock-risers
new 4.5mm thick carbon shocktower with 5 upper positioning holes for the shocks and and 6 holes for roll-center positions.  1 centrally located adjustable bodymount , and 2 forward mounted adjustable bodymounts, all with flip-tops.    The durable machined alu shock-risers in front allow for a more onroad aimed angle of the shockabsorber creating more overall grip and more predictable cornering.    

ANGLED STEERING SYSTEM / SERVO SAVER:

Angled steering system / servo saver   
The bell cranks are angled to reduce the angle of difference between the total caster and steering plane. Therefore you will have less bump steer and a truer steering Ackerman through the entire range of suspension    

ACKERMANN PLATES: 

With the design of the steering bell cranks when changing the Ackermann you will not need to adjust your steering tie rods. You simply will only need to adjust your end points on your radio.

REAR UPRIGHTS ASSEMBLY:

New aluminium, grey anodised and laser engraved uprights with 3 upper roll-center positions. Strong steel track-rods with L/R threading and strong balljoints  to pre-set camber. Spring steel wheel-axles with large size bearings 8x16x5 and 13x19x4  with precision threaded aluminium wheel-hubs with +3 offset  . Rubber dustcovers in the rear to protect the cvd system and keep the lubrication inside. Flanged wheel nuts to guarantee that you will not loose a wheel nut in a race.

150cc FUELTANK:

Composite nyon fuel-tank with supersealing  springloaded shock-cap, bronze sintered clunk type filter and splash-side guard.  Side features slots to mount the supplied tube-guiders.  Tank mounts to chassis on longer composite posts with integrated rubber buffers to allow some movement and reduce fuel-foaming. The clunk system will allow the engine to continue running when the car is up-side-down.   

REAR ANTI-ROLL BAR:

The ballraced front anti-roll bar  system, consist of a spring steel bend wire, which is guided through the diff-cases and runs in ballraced steel adaptors.  The wire is linked to the lower suspension arm, with a captured adjustable threaded pivotball, for very precise and low friction  operation.   

CAPTURED PIVOT PINS, BALLS AND BOLTED HINGE PINS:

All spring-steel hinge pins are either captured or bolted in place and made in spring-steel quality. This insures your chances to finish an hour long main event, while battling for the lead.  This relieves stress on the hinge pin when adjusting the kick up, or anti squat. Your pin is free to rotate to any angle without binding.   

SHOCK ABSORBERS RCM BIG-BORE 16MM:

Hard Teflon coated threaded shockbodies with 4mm shock-rods.  Black anodized aluminium screw on shock-tops with Serpent laser engraving.   Pre-load adjusters with o-rings inside.  Shocks use  large diameter membrames and large diameter o-rings  and bushings to create a  supersmooth  and leak-proof package.  Large diameter pistons are held in place by a nut on the polished shock-rods tops. Open type spring retainer to let dirt out easy.    

RCM SHOCK SPRINGS:

Short type colorcoded shock springs are supplied for the 1st standard set-up  Springs are grinded flat top and bottom, and checked individually for tension and length.     

REAR SHOCK TOWER AND ALU SHOCK-RISERS: 

New 4.5mm thick carbon shocktower, integrated into the rear section for extra stiffness,  with 5 upper positioning holes for the shocks and 6 holes for roll-center positions.     The durable machined alu shock-risers in the rear allow for a more onroad aimed angle of the shockabsorber creating more overall grip and more predictable cornering. 

WINGMOUNT AND BODYMOUNTS REAR:

Composite rear wing, with strong nylon adjustable rear bodymounts on wide body-support bridge located far enough to the rear, to support the bodies in best way.         

SL8 XLI  2-SPEED GEARBOX:

SL8 gearbox comes straight from the Serpent 977-EVO 1/8 scale onroad car. Very light and compact design. Centrifugal spring loaded shoe system with small alu bell and flange with one-way bearing.   Durable composite 2-speed gears with smaller pitch .
   
2-SPEED CLUTCH HOUSING WITH SCREW ON GEARS:

Strong  steel clutch-housing with precision machined threading, with hard coated aluminum screw on gears with smaller pitch .     

4-SHOE CLUTCH:

Full carbon 4 shoe clutch-set with medium type springs.  Easy to assemble with light and durable anodized aluminium flywheel.  

ENGINE MOUNT: 

Machined 7075 T6 aluminium  engine mounts with side cooling fins.    
   
COIL EXHAUST WIRE and ALU MOUNT:

The tuned pipe is securely fastened with the cols spring and aluminium holder.    
Helps aid in the front to back movement of the pipe when chassis flex occurs. Helps to prevent damage to your exhaust gaskets.   

FRONT AND REAR CVD-SETS:

Both front and rear captured  driveshafts are being used with CVD system.  Durable yet light  spring steel engraved driveshafts with hard steel pins.   

COMPACT GEAR DIFFERENTIALS:

Very compact gear differentials with very smooth metal sintered gears, and steel shaft. Perfect sealing case with special gasket and o-rings. Very light and durable outdrive cups in spring-steel.   Hardened spring-steel diff-coupler 13T with connector running in 2 oversized bearings 8x19x6 and ballbearing-13x19x4.  

SPRING STEEL TRANSMISSION PARTS:

The front and rear thin but strong spring steel cardan shafts connect the differentials with the gearbox section.   

OILS AND GREASE:                                

The shock-oil, diff oil and some grease is supplied to meet the standard set-up.  

MANUAL AND SETUP:                             

Full color online manual and USB stick version with easy to follow assembly steps, exploded views for easy spares ordering, a blank and standard set-up sheet for a good start set-up.      

DECALS:                                               

Black and white promo body-decals ; Serpent generic and Cobra GT ones.            

PACKING:                                            

Parts are packed according to the  steps explained in the manual.                    

SERVICE AND SUPPORT:                          

The Serpent distributor, dealer or agent is your source for more info, but also the Serpent website, Facebook-sites and the Youtube channel provides lots of information.   

NEEDED TO COMPLETE THE CAR:

-   radio and receiver   
-   rx battery pack    
-   engine and pipe system   
-   foam onroad airfilter or offroad type
-   wheels and tyres    
-   body and wing   
-   fuel   

OPTION PARTS:

Brake set Pro steel

Steeringblock L+R V2 alu

Spring Fr/Rr Black 811GT 37lbs

Servo saver alu coated

Track rod M5x53 titanium

Servo lever steering

Ackermann set Cobra S811