Serpent Viper 990 4wd 1/8 GP (SER903020)
The Serpent Viper 990th is the successor of the successful 989.
We have spent a lot of testing and research to improve the 989 platform.
We put a lot of emphasis on the flex characteristic since that showed very promising results.
On top of that we improved weight, weight distribution and ease of maintenance.
Beside all these b=new features we kept 90% of our proven transmission and our excellent shock absorbers.
Downloads
| 04-13-22 | Manual Viper 990 V1.1 | 13 MB | Download |
| 04-04-22 | Ref guide Viper 990 V1 | 67 KB | Download |
Setups
| 04-04-22 | 990 - Editable setup sheet | 1 MB | Download |
| 04-04-22 | 990 - Blanck setup sheet | 1 MB | Download |
Description
The ultra-narrow chassis is milled down to allow the lower radio plate as well as improved flex.
keeps the improved flex characteristics.
The central hole underneath the tank is narrower, as a consequence of the narrower chassis.
The central weight bridge is now mounted from underneath and allows for a quick change of the weight.
The weight itself is now fixed using a nylock nut. Bulletproof!
The front weight bridge is now also mounted from the bottom to allow easy access to the weight.
Also the front weight is now adjustable from the bottom.
There are 2 additional locations to put a small weight, just behind the servo-saver.
And in front of the engine.
The engine has been lowered 1mm for improved flex as well to lower the CG
The rear of the chassis has a slot. This will be explained later here. It has to do with adjustable flex.
It also carries 2 steel countersunk screws that act as a counterpart of the down-stop screws.
This helps to keep the down-stop more accurate and consistent
Talking about flex: we tested a lot and one of the improvements came from lowering the radio plate by 2.5mm. We also change the shape of it.
The front of the car can be adjusted to more flex by removing the front stiffener bracket
The rear of the car is also adjustable regarding the flex.
To regular rear end features the proven, one-piece rearplate
As an option it is also possible to use a softer rear end using a optional 2-piece rearplate
The radio-box is completely new. The “backbone” of it is a carbon plate and an aluminium frame.
The aluminium servo mounts are eccentric and can be mounted in 2 ways to adjust them to the brand of servos.
The receiver box is more spacious than the one used in our 988, still it is very compact.
This new box is mounted to the radio plate in a flexible way in order to not influence the flex of the car.
The extending arm of the frame helps to keep the radio box in the desired position without influencing flex.
The rear end is completely new.
It features a new design to allow an re-active toe-change as well as avoid any binding at all!
By changing the position of the link the amount of toe-gain under compression can be adjusted.
The position shown is the “neutral” position.
Since the upper link is replaced by a suspension arm, we also changed the upper pivot on the upright.
It is now super easy to adjust the correct camber.
The height of the pivot ball is adjustable by changing the aluminium insert.
There are 3 positions
The upright carries an aluminium insert where the ball bearings of the wheel axle sit.
In that way we can achieve the perfect roundness even under load to achieve the least friction of the transmission possible.
In this way it is also really easy to remove the wheel axle/driveshaft for maintenance
The front steering-block features a similar construction.
The aluminium insert gives the same advantages as in the rear with improved drivetrain effectivity and improved ease of maintenance
But because this insert is eccentric, it is also possible to change the roll-centre as well las using a trailing or leading set-up.
Of course the steering-blocks are still left/right symmetrical and can be used with option1 as well as option2 levers.
The front upper suspension bracket now has an improved design takes provides a better placement to avoid camber or caster irregularities by using bushings.
The new lighter 2-speed shaft is 10g (!) lighter and features a super-true mounting of the 18t pulley adapter.
7075 T6 Aluminium 5mm chassis plate
The 5mm aluminium chassis has perfect symmetrical shape for even flex and weight distribution.
The wire type front anti-roll bar is ball raced.
It is easy to change and adjust due to the open front end design.
The standard wire is 2.5mm and 2 optional thicknesses are available.
The pivot ball link system directs the suspension movement to the bar and allows easy tweak adjustment.
The steering blocks are connected to the arms with spring steel 8.5mm pivot balls, which run very smooth and well protected in nylon cups, and are easy to adjust with a 2.5 hex tool.
The long durable front lower wishbones are the open-style arms similar to the 977.
An aluminium shock mount plate is screwed onto the lower wishbone.
This allows the shock attachment point to be placed further outwards improving shock motion.
The front lower arms are mounted to the front brackets with nylon holders.
The kit includes 2 versions: in and out.
This system also enables quick and easy front drive shaft maintenance.
Of course the 988 closed arms are usable as well
The left and right interchangeable upper arms are mounted with 3 position nylon suspension pin inserts.
The 3 position inserts allow camber-change adjustments and are held in place by the anodized aluminium top brackets.
Below the top brackets, spacers can be used to change their angle or height.
Caster is adjusted with clips on the upper pivot pins.
The same clips are also used on the lower pivot pins to change wheelbase.
The black anodized aluminium front axle has Japan made one-way bearings. Spring steel drive cups connect to the long and thin spring-steel drive shafts with CVD system.
The ball raced spring steel wheel axles have aluminium quick-change levers.
The open front end design allows for very fast and easy removal of the front axle and driveline parts.
The central mounted seervosaver allows easy and fast Ackermann adjustment.
The servosaver features a top mounted insert which can be used in 3 positions. Another 2 Ackermann positions are available on the steering blocks.
The rear end construction with aluminium brackets is a very open design, which allows for easy of maintenance and cleaning.
Dis-assembly requires the removal of only a few screws. Replacing a belt if needed, is a simple task.
The eccentric bearing holders on the rear shaft allow adjustment of belt tension.
The whole rear end can be removed as one unit from the chassis by removal of only a few screws.
The wire type rear anti-roll bar is ball raced. It is mounted in the rear bearing blocks and is easy to change and adjust.
The standard wire is 2.5mm and 2 optional thicknesses are available.
The pivot ball link system directs the suspension movement to the bar and allows easy tweak adjustment.
The narrow solid rear axle in Serpent spring steel has a lightweight 9mm wide 48T pulley.
The axle has a double slot for the driveshaft pin for lightness and long life.
Spring steel, CVD type, drive shafts connect the rear shaft to spring steel wheel-axles with aluminium quick-change levers.
A very durable and long lasting drivetrain.
The rear floating body mount which is mounted on the up-rights with 2 arms is centred by a carbon-fibre and steel guider.
The mount has 4 positions on each side to choose from, depending on body shell used and traction available.
The threaded holes on the end of the body mount give the option to add further body-supports.
Optionals
A large selection of optional parts is available to even further improve performance, speed, weight and looks.www.serpent.com/903020
Communications
- Website
- Promo page
- Facebook page
- Viper 990 Facebook user group
- YouTube video’s
- Online set-up sheets
- Support from distributors, dealers and team drivers worldwide
Merchandising
A nice selection of shirts, sweaters, jackets, caps, bags, tools and decals.
Design
Serpent Viper 990 . Designed by Michael Salven.
With great help from all team-drivers and 989/988 drivers!
50,000원 이상 주문시 무료배송! (단, 50,000원 미만 주문시 배송료 3,000원이 추가됩니다.)
- RC용품 제조사 A/S규정안내
- 변속기,배터리,모터,수신기 킷트 등의 모든 RC용품은 제조사의 공장 출고시 불량을 제외한 어떠한 경우에도 제조사의 규정에 의해 일체 교환 및 무료 A/S는 불가합니다. (알씨마을의 규정에 의한 것이 아니니 이점 이용에 참고하시기 바랍니다.)
- 최초 불량이 아닌 사용중 파손시 고객님께서 직접 수리 및 부품교환을 하셔야 하나 수리가 어려울 경우 알씨마을로 문의 주시면 부품 + 공임(공임은 작업량에 따라 약 1만~5만원)으로 유료 A/S(수리)를 해드릴 수 있습니다.
- 제 1 조 알씨마을의 부담으로 재배송 또는 반품, 교환, 환불해 드리는 경우
- 1. 주문한 상품과 다른 상품을 배송한 경우
- 2. 주문한 상품의 수량과 수령한 상품 수량이 다를 경우
- 3. 상품의 파손 손실된 상품을 배송한 경우
- 4. 상품(택배)을 받지 못했을 경우
- 제 2조 고객께서 비용을 부담 하셔야 하는 경우
- 1. 고객님의 변심으로 반품, 교환을 원하는 경우(단, 개봉한 상품은 불가)
- 2. 주문시 배송지 주소를 잘못 기입하여 배송받지 못한 경우
- 3. 주문시 호환여부를 잘못 판단하여 사용할 수 없는 상품을 주문한 경우
- 4. 수령한 상품을 사용중에 부품이 파손된 경우
- 5. 수령한 상품을 사용중 초기셋팅값을 변경하여 시동 또는 작동이 되지 않을시 유선상 처리가 불가한 경우
- 제 3 조 기타 유의 사항 안내
- 1. 알씨마을 쇼핑몰의 상품상세정보는 실제 상품정보와 약간의 차이가 있을 수 있습니다.
- 2. 옵션 상품등 호환되는 상품 주문시 꼼꼼히 호환여부를 확인 후 주문하시기 바랍니다.
- 3. 파손된 상품 또는 불량에 대한 이의 제기는 택배수령후 3일 이내에 하셔야 합니다.
- 4. 개봉한 상품은 반품, 교환되지 않습니다.
- 5. 반품, 교환시 배송중 파손될 경우 그 손해는 고객님께서 부담하셔야 합니다.
- 6. 구매자의 사용 미숙으로 발생한 신체 또는 재산상의 손해에 대하여 일체 책임 지지 않습니다.
