Serpent Cobra 811 Buggy 2.1 1/8 4wd 1/8 scale high end 4wd race buggy for competition purposes. Cobra Buggy 2.1 main new features: - plus 4 chassis - longer alu rear brace - longer rear central shaft - hard coated shockcaps - aluminium 14 dgr casterblocks The kit includes car, clear body with mask, rear wing, decal and full color manual.
The Serpent Cobra Buggy 2.1 is a result of continuous development and intensive cooperation with the key team-drivers.
The changes for the 2.1 version are not very big, but very important to make you go around the track easier and faster. The longer chassis combined with the 14 degree castorblocks offer a really big difference in overall handling.
Serpent Cobra 811 Buggy 2.1 1/8 4wd
Cobra Buggy 2.1 main new features:
- plus 4 chassis: the hard anodised chassis is 4mm longer in the rear, creating a more stable rear end, especially better on tracks with short bumps and rough surface. The great handling on smooth, flat surfaces remains !
- longer alu rear brace: the longer alu brace also helps to make the rear end more stable. The shorter nylon or alu version can also still be fitted.
- longer rear central shaft: to suit the longer chassis a longer rear central shaft is needed (which is actually the same as the one used in Cobra buggy 1.0 )
- hard coated shockcaps: the hardcoated aluminium shockcaps can withstand the rigors of crashes better
- aluminium 14 dgr casterblocks The Cobra buggy has a lot of steering already which makes it turn very fast. The 14 degree caster blocks help to smoothen steering out a bit, still lot of steering , but easier, less direct, creating a more stable front end.
The Cobra buggy 2.1 will have an additional sheet to show the new items and assembly.
4mm longer hard anodised chassisplate in 3mm 7075 T6 aluminium , with machined pockets to create flex make lighter. Kick-up angle on front for stabile landings. Countersunk holes. Slots to locate the front and rear suspension mounts precisely. Angled sides to increase stiffness. Laser engraved Cobra logo.
Aligned with chassis kikc-up for precise landings and to protect front suspension holder and anti-roll bar.
Aluminium longer rear stiffner, and composite front stiffner, to give extra stiffness, but still allow some flex as needed.
Central radio / servo mount
Composite radiobox which offers good space for the steering and throttle -servo, the receiver and rx battery. The whole assembly including linkages can be taken off easily and fast in one go, when cleaning the car, or doing maintenance. One extra post is added close to the servo for stability.
Servo arms and linkages
The servo arms have a splined insert to have the right fit per brand. The linkages run very clean and tight and are easy to access to modify settings.
Beautifully machined 7065 T6 suspension brackets in anodized, laser angraved. Precision fit for the nylon roll center inserts and pivot balls / pins.
Composite steeringblocks combined with 14 dgr black anodised aluminium C-hubs for precise steering. Composite 10 and 12 dgr c-hubs are also included. Spring steel wheel-axles with large size bearings and larger inner with precision threaded aluminum wheel-hubs with offset . Flanged and serrated wheel nuts.
Durable oversized lower suspension arms in strong composite nylon. On the lower side the special shaped 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 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 and easy tuning.
Shocktower and bodymounts front
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.
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
With the design of the steering bell cranks when changing the Ackerman you will not need to adjust your steering tie rods. You simply will only need to adjust your end points on your radio.
Rear suspension arms
Durable longer 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.
Superlight polycarbonate mud guards mount to the new lower suspension arms, and will keep dirt away from your anti-roll bars transmission and wheels.
Rear uprights assembly
Composite 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 and larger inner ones with precision threaded aluminum wheel-hubs with offset . Rubber dustcovers in the rear to protect the cvd system and keep the lubrication inside. Flanged and serrated wheel nuts to guarantee that you will not loose a wheel nut in a race.
Composite mud scrapers which mount to the new uprights, and will keep the inside of your wheel cleaner in case of muddy conditons.
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.
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.
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.
Captured pivot pins and 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.
Shockabsorbers big-bore 16mm
Hard Teflon coated threaded shockbodies with 4mm shock-rods. Hard anodized aluminium screw on hard anodised 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. The shock-shafts are protected by rubber boots.
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.
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 . Drive ratio 4.3:1. This drive ratio will provide amazing acceleration combined with the low vehicle weight. It is a sure win, to help improve fuel mileage
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.
Spring steel transmission parts
The front and rear thin but strong spring steel cardan shafts connect the differentials .
Throttle and brake lever ball cups
Helps provide consistent pulling on the brake lever or carburetor if you do not have the linkage perfectly aligned.
Piston Braking system
Provides more stopping power than you could have ever imagined before with a whole lot less servo power. Also is fully adjustable with 3 types of pistons, solid, O ring type, spring type. In turn you can adjust your bias or braking feel to your liking in more ways than ever before.
Fiber Glass disc brakes
Fiber Glass brake disks with oversized front disk.
Brake plate springs
Will keep the plates spread open to insure un-wanted dragging of the brake discs.
Racing clutch 4 - shoe
Allows you to mix and match shoe materials evenly in pairs. Also provides more surface area contact to insure the engagement. 4 carbon shaped shoes are standard ( alu ones optional).
Coil exhaust wire and alu mount
Helps aid in the front to back movement of the pipe when chassis flex occurs. Helps prevent damage to your exhaust gaskets.
Machined 7075 T6 aluminium engine mount, with side cooling-fins.
Splash basin on tank top, self centering Fuel tank seal, The fuel tank seal is angled to self guide its way into the bore of the tank. At the same time will provide a seal on the chamfered and flat edges of the seal, providing consistent engine performance from one pit stop to the next. Built in tank splash guard which helps prevent fuel from splashing onto your air filter in the event of an overly excited pit man.
Fueline and stoppers
Kit included topqualiity soft silicone fuelline to connect to tank, car and pipe, and also includes small composite stoppers to close yr fuelline when taking out tank, engine and or pipe.
Tank with swiveling nipple and floating clunk.
With the swiveling nipple you are able to adjust the angle at which you want you fuel line to travel. At the same time the floating clunk helps when you go upside down. The clunk by gravity will fall back into the fuel, utilizing the flexibility of the silicone fuel tubing.
Oversized Tank with adjustable volume.
With the insertion of a simple screw and volume reducer you can have ROAR, IFMAR and any other organizations legal tank volume.
Low profile air filter
Centralized air filter design to minimize cab width and height. Flexible rubber boot combined with strong nylon case to support the foam elements. Excellent dense foam airfilter elements to keep your engines clean inside.
Serpent cab forward Avenger body, with film and masking tape is included in the kit.
Low version strong rear white aero rear wing is included for great downforce and straight line stability.
Oils and grease
The shock-oil, diff oil and some grease is supplied to meet the standard set-up.
Manual and set-up
Full color manual 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.
Black and white promo body-decals ; Serpent generic and Cobra ones.
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 and the member section and the Youtube channel provides lots of information.
Needed to complete the car:
- radio and receiver
- .21 gaspowered engine and pipe-set
- fuel with 16% or 25% nitro and fuelbottle
- wheels and tyres
- starterbox, glowstarter
- charging equipment