Serpent Cobra 811 1/8 Nitro Buggy Sport Edition

Jul 31, 2012 No Comments by

First offered as a Team Edition kit, now Serpent has releasesda Sport version of their popular 811 1/8 nitro buggy. Check out all the features in the press release below:

Cobra 811 Buggy Sport 1/8 Gas-powered The Sport version of the successful high end Serpent 1/8 Cobra 811 Buggy. 4-wheel-drive, 3 gear diffs, race clutch, 16mm big bore shocks, aluminum shock towers and chassis, easy radio box, side guards, rear wing. Fully upgradable with parts and options from the high end race-version. This super durable Buggy chassis allows a great entry in the racing scene, at a lower cost, and will make you finish your races!

Chassis plate

Chassis plate in 3mm 7075 T6 aluminum , with machined pockets to create flex and or make lighter. Kick-up angle on front for easier landings. Countersunk holes. Slots to locate the front and rear suspension mounts precisely. Angled sides to increase stiffness. Open pockets to access flywheel . Laser engraved Cobra logo.

Bumper

Large rounded nylon bumper that withstands impact after large jumps, and makes landing more subtle. Protects also the front swaybar assembly and front suspension brackets.

Chassis stiffeners

Composite stiffener front and rear, to give extra stiffness, but still allow some flex as needed.

Central disk brake system

Very low and centrally placed brake system for low center of gravity with glass fiber brake disks, combined with thick steel plates which won’t bend under pressure.

Radio-box

Composite radio box 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 receiver box. The whole assembly including linkages can be taken off easily and fast in one go, when cleaning the car, or doing maintenance.

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

Durable nylon suspension brackets. Precision fit for the nylon roll center inserts and pivot balls / pins.

Steering blocks assembly

Composite steering blocks combined with 10 degree C-hubs for precise steering. Steel wheel-axles with large size bearings and larger inner with precision threaded aluminum wheel-hubs . Flanged and serrated wheel nuts to guarantee that you will not lose a wheel nut in a race.

Front suspension

Durable oversized lower suspension arms in strong composite nylon. On the lower side down stops setscrews are mounted. The lower shock-mounting pins are secured with a small grub screw from the bottom.

Front anti-roll bar

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

Shock tower and body mounts front

4.0mm thick anodized aluminum shock tower with 3 upper positioning holes for the shocks and 5 holes for roll-center positions. 1 centrally located adjustable body mount , and 2 forward mounted adjustable body mounts, 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

Ackerman plates

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 oversized lower suspension arms in strong composite nylon. On the lower side the down stops set-screws are mounted. The lower shock-mounting pins are secured with a small grub screw from the bottom.

Rear uprights assembly

Composite uprights with 3 upper roll-center positions. Strong steel track-rods with L/R threading and strong ball joints to pre-set camber. Steel wheel-axles with large size bearings 8X16X5 (2) and 15x21x4 (2) with precision threaded aluminum wheel-hubs with XX offset .Flanged and serrated wheel nuts to guarantee that you will not lose a wheel nut in a race.

Rear anti-roll bar

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

Shock tower rear

4.0mm thick anodized aluminum shock tower, integrated into the rear section for extra stiffness, with 3 upper positioning holes for the shocks and 5 holes for roll-center positions.

Wing mount and body mounts rear

Composite rear wing, with strong nylon adjustable rear body mounts 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 steel hinge pins are either captured or bolted in place. 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 big-bore 16mm

Coated aluminum shock bodies with 4mm shock-rods. Black anodized aluminum screw on shock-tops . Pre-load adjusters with nylon spacers. Shocks use large diameter membranes and large diameter O-rings and bushings to create a super smooth 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 color-coded shock springs are supplied for the 1st standard set-up Springs are grinded flat top and bottom, and checked individually for tension and length.

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 durable outdrive cups in steel. Hardened spring-steel diff-coupler 10T with connector running in 2 oversized bearings 8x19x6 and 13x19x4

Front cvd-set, rear dogbone style

Both front steel drive shafts are being used with CVD system. Durable steel drive shafts with hard steel pins. In the rear a dogbone type system is applied.

Strong steel transmission parts

The front and rear steel carbon shafts connect the differentials with the gearbox section.

Engine mount

Machined aluminum engine mounts for a stable engine mounting .

Coil exhaust wire and alu mount

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

3-shoe clutch

Full carbon 3 shoe clutch-set with medium type springs. Easy to assemble with light and durable anodized aluminum flywheel.

125cc fuel tank

Composite nylon fuel-tank with super sealing spring-loaded 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.

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 air filter elements to keep your engines clean inside.

Body

Sleek, low style polycarbonate buggy body, with lines provided for cut out for engine and tank.

Rear wing

Large rear wing in durable nylon with good down force and special shaped for best airflow over and through the wing.

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.

Decals

Black and white promo body-decals ; Serpent generic and Cobra 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 and the member section and the YouTube channel provides lots of information.

Needed to complete the car

  • radio and receiver
  • rx battery pack
  • engine and pipe system
  • wheels and tires
  • fuel

Upgrading the Serpent Cobra Sport buggy

All the regular parts and the option parts of the race version of the buggy also fit this Sports-buggy. This Sport buggy can also handle higher level racing for sure, but to be even more constant and faster some optional will help. So you can select the sections which you like to upgrade step by step. Start with shock springs and anti-roll bars, which together with other diff-oils and shock-oils and tires, will already offer a good tuning range.

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If you like this article, check out this additional article on Serpent.

Featured News, Nitro

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Bringing you RC product news you can use on a daily basis as Car Action's Online News Editor. I have over 15 years of RC experience, plus a background in print and broadcast journalism, engineering, information technology, direct marketing, and even banking. Currently I enjoy racing 1/10 electric off-road, and have been bitten by the short course bug.
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