Serpent Cobra 811 Sport 1/8 Electric Buggy

Jul 05, 2012 1 Comment by

Designed by Billy Easton and first released as a Pro kit, Serpent has now released a sport kit version to meet your race budget. Check out the press release below for more info:

The Sport version of the successful high end Serpent 1/8 Cobra 811 E-Buggy. 4-wheel-drive, 3 gear diffs, 16mm big bore shocks, aluminum shock towers and chassis, easy radio box, side guards, battery boxes, 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!

Features:

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. Laser engraved Cobra logo.

Bumper

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

Chassis stiffeners

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

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 sidle downstops 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 downstops 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 .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.

Wingmount and body mounts rear

Composite low 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 13T 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 cardan shafts connect the differentials with the gearbox section.

Servo / speedo mount

This section is positioned in the front for optimal weight distribution. The servo is in standing position with a very short and effective steering arm. The space for the speedo is large enough to suit most commonly used. The receiver-box is on top for easy access and low weight.

Motor mount

The motor is placed in the most optimal position in the car, keeping motor-forces and transmission parts / alignment in mind. Only one-screw is needed to secure the BL motor, in the nicely designed durable machined aluminum motor mount. Space for additional motor-cooling available as needed.

The space for the motor allows a maximum motor-length of 68mm, which covers most widely used motors.

Battery-cases / side-guards

The main eye catchers are the extremely low laydown longitudinal placed battery-packs at each side of the car, being part of the side-guards, securely fastened with a flip-lid, for easy and fast battery changes. The weight low in the car and in the right position, well balanced. The Lipo holders comply with ROAR legal packs / dimensions.

Lightweight Differentials and center spur.

Very compact and light gear-diffs. By reducing the rotating mass, you can further increase the amount of out of the corner acceleration.

Body

Sleek, low style polycarbonate buggy body, with lines provided and masking sheet too.

Rear wing

Large low 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
  • speedo, BL motor, battery
  • wheels and tires

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.

Specs:

wheelbase: 330mm
width: 305mm
weight: 3.300 grams ( race ready, depends on radio-gear and engine)
clutch: 3-shoe centrifugal, carbon shoes
differential: lightweight, small gear diffs , front, central and rear
brake: piston type with glass fiber disks
shocks: 16mm big bore
fuel tank: 125ccm, with integrated bronze filter
gear-ratio: 4:3:1
included: Kit, body, wing, silicone oil, full color manual, decal sheet.
not included: Radio-gear, tires-wheels, motor, esc, batteries.

#600005

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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.

One Response to “Serpent Cobra 811 Sport 1/8 Electric Buggy”

  1. Latest Buggy Rolling Chassis News | Best Selling Automotive Products says:

    [...] Serpent Cobra 811 Sport 1/8 Electric Buggy This super durable Buggy chassis allows a great entry in the racing scene, at a lower cost, and will make you finish your races! … 4.0mm thick anodized aluminum shock tower with 3 upper positioning holes for the shocks and 5 holes for roll-center … Read more on Radio control Car Action (blog) [...]

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