Viper 977 EVO-2 1/8 GP 4wd Gaspowered toplevel racecar with 4wd, belt-drive, Centax real motion clutch, XLi-8 gearbox, flex-system front side and back, braking system on rear axle, front one-ways, rear solid axle, ballraced anti-roll bars, low big bore shocks, slim rear end pivots. A totally adjustable battle framework to the latest spec and technology. EVO-2 variation features brand new big bore shocks and the brand new rear end geometry.
Serpent was developing 1/8 scale onroad rc automobiles since 1977, officially as business since roughly 1980. Which over 35 many years of of competition and development experience combined !
The Serpent Viper-EVO-2 is the next step in the constant development of this very demanding 1/8 scale rushing course, the peak of rc vehicle race. The Viper 977-EVO is about refinement, in order to make an excellent vehicle better still. Ready to guard the 2013-2014 World Championship TQ and name by Tadahiko Sahashi from Japan.
Specs:
- Course: 1/8th scale gas on-road, IFMAR guidelines
- Function: High-end competition
- Body weight: 2.420kg (based on radio gear)
- Track-width rear: 260mm - 266mm
- Track-width front side: 250mm - 260mm
- Wheel base: Adjustable 296 - 300mm +/-1.7mm
- Chassis: 5mm 7075 aerospace quality aluminium
- Broadcast dish: 2.5mm carbon fiber,
- Suspension: Independent double wishbone suspension
- Shock absorbers: RCM shock absorbers
- Gas tank: 125cc design
- Rear axle: Solid rear axle
- Front axle: Aluminium front side axle with one-way bearings
- Gearbox: Lightweight 2-speed XLi8
- Clutch system: Centax true Motion clutch system
- Instructions: Full colour Instruction manual on the web / PDF
- Adjustability: Camber, Caster, Down-stops, Up-stops, Toe-in, Track width, Wheel base, Front & back roll centre
Features:
- 4wd belt-driven race automobile
- 2-speed gearbox and Centax competition clutch
- Independent suspension with hydraulic shocks
- Front shaft with oneways and back solid axle
- 5mm aluminium framework with fat slider system
- 2.5mm carbon radioplate with flex system
- Aluminium bearingblocks front and back
- Central rear axle brake
- Front cvd , rear dogbone drive, both with fast change wheel system/axles
- Ball raced front and back anti-roll bars
- 2-speed gearbox SL8 XLi with superlow inertia
All elements of the gearbox happen made smaller and as light as you are able to, to lessen inertia further, still maintaining durability along with record. The gears changed to a 0.8 pitch which will be smoother compared to initial one. The Serpent gearbox system had been our innovation into the belated 80-ties and also the system hardly changed, only optimised, and now as system used with all other brands .
Key features:
- 2-speed gearbox SL8 XLi with superlow inertia
- Composite 2-speed gears with 0.8 pitch
- Centax hardcoated alu clutch gears with 0.8 pitch
- Aluminium chassisplate in 7075 T6 with optimised flex and weights slide
- carbon fibre 2.5mm radioplate with aluminium mid-flex system
- aluminium central flex system with bearings
- front bumper with inserts
- geometry with narrower front end
- improved backside bodymount
Centax
Centax hardcoated alu clutch gears with 0.8 pitch
To go with the 0.8 pitch gears, the Centax gearpinions additionally needed seriously to go to the 0.8 pitch. The precision machined and hardcoated gears are durable and smooth. The Centax clutch is a Serpent innovation from the early nineties, and it is in use by almost all brands now.
Framework
Aluminium chassisplate in 7075 T6 with optimised flex and weights slide
The chassisplate is an essential component as main unit inside car. The flex-characteristic is a significant point, plus weight stability because of the sliders we use and the dissipation of temperature from engine. The framework is narrower in front side to enable a slightly various geometry. 2 sets of front side lower pivotpins holders are included to alter the geometry, run it narrow or wide. Machining of this chassis permits flex in an alternative area as prior to, and can be affected by using the carbon brace.
Brand new geometry with narrower front end
The narrower chassis in the front allows to operate a slighly different geometry in the leading.
Radioplate
Carbon fibre 2.5mm radioplate with aluminium mid-flex system
The stiff carbon fibre radioplate is one piece once more because of the flex system moving toward center for the automobile, simply behind the tank.
Central flex
Aluminium central flex system with bearings
The device consist of a lower and top anodised aluminium section, linked with screws for zero flex, or with bearings inside for many controlled flex. It takes removal of just 2 screws to get from fixed to managed flex.
Bumper
Front bumper with inserts
The newly developed front aero kind bumper is a tremendously durable product, which as additional feature provides detachable inserts. Its very easy and fast to try with or without inserts in a matter of moments.
Bodymount backside
Rear drifting bodymount
Extra ribs and much more material is added to raise the tightness for the backside bodymount and a 4th gap is added both edges for more tuning choices
General overview
General Features:
5mm aluminium framework in perfect symmetrical shape for even flex and weight distribution. Aerospace quality 7075 T6 aluminium with engraved logo. Improved tightness around the motor for better motor performance. Countersunk holes, chamfered edges for more cornering, ground clearance. Area in center section of the framework to permit mounting of metal sliding loads, that are utilized as set-up device, to relax and play with chassis stability. This has big influence on steering, grip and tyre wear and is very easy and quick to improve. All screws from the base are with 2.5mm allen size.
The strong aerodynamic shaped composite bumper. The upward sides ensure it is more stabile, so these wont touch the outer lining under impact or with high conditions. As extra function offers removable inserts. Its quite simple and fast to test with or without inserts in a matter of moments
The durable composite front bodyposts are excentric , to permit going the body to front side or right back a few mm to optimize steering / downforce.
The steeringblock , and this can be installed kept or right, offers something to change the axle place more to front or right back providing a trailing or leading steering, together with power to change the kingpin-inclination and offset. The steeringblock features an aluminum dish to connect the steering-rods, 2 choices for Ackermann.
The spring-steel steering-rods are fastened toward alu steeringplates, which mount towards the brand new steeringblocks. Optional carbon fibre disks are installed quietly of uprights to stiffen the construction and for aerodynamic reasons.
The long durable front lower wishbones, are installed superlow in vehicle, and feature a semi covered leg for the internal suspension pin plus the pivot link for leading anti-roll club system, its has also an expansion the down-stop screw . The low hands contain the reduced alu shockmount dish, makes it possible for a further away and higher mounting point the front shocks. The strong upper hands in can be utilized left and right. Leading lower arms hook up to the alu front bracket on very low nylon holders. The kit includes 2 variations, wide and narrow . This whole system also lets you replace a front driveshafts extremely swift and effortless.
The longer upper hands are mounted between the anodized aluminum top brackets, which also hold the suspensionpin inserts allowing camber-change changes with 3 feasible inserts . Below the alu top-brackets spacers may be used to change angle or height. Caster spacers are used as simple videos on the top pivot pins. Same videos will also be utilized on the reduced pins to improve wheelbase.
The topmounted composite bracket offers extra stiffnes toward front side part, it holds the 3mm thick carbon fibre front shocktower and invite the down-stop screws.
The ballraced front side anti-roll bar is a wire type, with very easy and fast start access regarding front, captured inside alu front side braces. The standard cable is 2.5mm and 2 other as choices. The pivotballs link system directs the energy to the bar in a smooth way and easy to modify the tweak using the captured pivotball.
In front the alu front axle with Japan-made one-way bearings features now a better pully construction, without any play and super-true. Springsteel drivecups, strong, long and thin spring-steel driveshafts with CVD system, and ballraced springsteel wheelaxles with alu quick-change levers. The available front end design allows for quickly and simple elimination of the leading axle or components.
The springloaded servo-saver permits easy and fast Ackermann settings. The servo-saver features a high installed insert that can easily be utilized in 3 roles. Another 2 Ackermann roles regarding steeringblocks.
The steeringblocks and back uprights connect to the arms with springsteel 8.5mm pivotballs , which run really smooth and well protected in nylon cups, and tend to be simple to adjust with an allen device.
2.5mm carbon fibre radioplate with all the the guts flex-control system. The radioplate holds the fueltank, the receiver battery pack while the built-in electronics bracket/box, as well as the center flex system
The new center flex system consist of a lower and top CNC machined aluminium bracket and a smal carbon brace. The top of one is fixed towards radioplate and the lower anyone to the center radioplate mount.
In rigid standard positon the upper and lower brackets are installed fixed with 2 screws.
Into the flex position the 2 bearings have been in place along with the 2 screws dis-assembled, provide main framework flex.
Compact composite brace and package in one single, which holds and protects the receiver and mounts both servo?s, which both lay on the edges, as low as possible, just a tiny clearance to permit for framework flex. The cap associated with receiverbox provides a unique yet simple and easy safe holder the cable connectors for the receiver, which works as a simple switch and is very accessible.
The optional carbon transponder brace mounts toward integrated electronic devices brace. When using a small receiver, the box has space to put on the transponder too, but should be tested for function prior to the race. Inside our test it worked.
Low 125ccm fueltank in a lengthy and slim design, with a premounted bronze filter. The narrow tank will guarantee a better fuel-supply towards the motor, because the gas can move less back and forth. The labyrinth within the fueltank may also keep carefully the gas more stable and prevents foaming. The tank has also elevated sections in the front side, which can make sure the fuel stays near the filter if the tank is practically empty. This produces like a warning signal a couple of seconds ahead of the tank goes completely empty, so you can try to look for a safer place to park. The fueltank has a strong springloaded cap and silicone rubber shaped seal, and has a link for the force line. The internal bottom for the tank permits mounting inserts to lessen volume if required.
The composite nylon radioplate bracket, holds a corner area of the radioplate therefore the strong chromed angled roll-bar, and in addition mounts the adjustable ballraced belt-tensioner. An aluminium one is optional.
Most of the topmounted screws come in allen 2.0mm size, except for the top suspension brackets in 2.5mm.
The batteryholder involving the tank and side belt , is made to fit the greater common Lipo packs. Additionally there is enough room to suit an everyday batterypack. The owner incorporates an easy spacing system allowing this.
The light, hollow 8mm hardcoated aluminium center shaft is held rigidly in destination a tiny, low put and light alu holder, that also holds the spring-type exhaust-wire.
The ultimate drive ratio of vehicle is 2.286
28T front side pulley
18T mid-inner pulley
25T mid-outer pulley
19T exterior lay-shaft pulley
21T inner layshaft pulley
48T rear axle pulley.
All superround and real pulleys have actually holes in the side flanges to permit dirt and dirt to move out easier. The 977 has the latest pulleys, with increased teeth, so larger diameter which makes the belts run smoother, with less friction.
The belts are low friction type as standard, back one as 8mm, side in 6mm and front 6mm too. The adjustable ballraced belt-tensioner ( carbon, alu) keeps the sidebelt operating smooth.
The low seated anodized aluminium motor mounts keep the engine well positioned and aligned and transfer heat to the framework inside simplest way.
A corner end construction because of the alu brackets holds the brake and back axle. Its available design permits eas of upkeep and cleansing, and requires hardly any screws to dis-assemble. Changing a belt just in case required, is straightforward and incredibly fast too. The eccentric regarding backside shaft enables belt tensioning. The entire tail may be removed as one product from framework, with hardly any screws.
The rear axle sits low inside car, to quickly attain more mechanical hold.
The brake is regarding rear axle, next to the solid axle pulley. This decreases the inertia aftereffect of the brakedisc a great deal as the back axle spins much slower compared to twospeed shaft. Also the brake-stress regarding the back belt is nearly gone. It's a really compact system and well protected against dirt, but nonetheless open enough allowing for adequate coolng. The swimming ventilated brake-disk rotates on the rear axle together with springloaded cam-operated brake pads will give you all the stopping energy you might need. The competition braking system pad product is baked on strong steel plates and allows extremely precise braking with a lot of brake-feel / feedback. In place of a cable we plumped for the well-proven wire-linkage of most Serpent cars.
The ballraced brake activator is bolted in a light alu holder to your right rear bracket.
The ballraced rear anti-roll club mount in metal adaptors, which run in nylon spacers in the alu holders as built-in part of the rear brackets, with 2.5mm as standard cable and 2 other as options. The anti-roll bar links towards backside lower hands with adjustable trackrod guidance.
The solid rear axle with lightweight 48T pulley in Serpent springsteel, 9mm wide with 4 slots the pin.
The aluminium rear brackets therefore the 2-speed layshaft holders have small ears which permit mounting associated with the optional alu or rubber spacer, to control flex. Either full flex, no spacer, or some flex with plastic spacer, or zero flex with the aluminium spacer.
The suspension bracket and backside plate contain the pins securely and have now composite roll-center inserts to allow for fast and precise modifications.
In the back strong springsteel driveshafts , springsteel wheel-axles with alu quick-change levers and a springsteel backside axle. Very durable and enduring drivetrain
The long durable backside reduced wishbones can be used kept and right. The low back arm holds the lower installed website link for the rear anti-roll club and holds the alu mounting plate of a corner shocks, makes it possible for a posture that is extremely far to the rear and to the exterior for most useful performance/ geometry. The lower hands additionally support the easy to get at down-stop screws. Nylon videos are used on the lower rear pins to improve wheelbase.
The durable composite uprights hold the ballraced springtime steel wheelaxles, with aluminium quick-change levers. The 8.5mm piotballs are used to adjust camber easily using the smooth hex-shaped plugs . The hands of this floating bodymount mount on top of the uprights. Together with the up-right spacers can be added beneath the pivotball to change rollcenter and camberchange.
Optional carbon fibre disks are mounted on along side it regarding the uprights to stiffen the set up and for aerodynamic reasons.
The adjustable back upper camber links mount to the back carbon camberplate with 2 positions .
A corner floating bodymount is mounted on the up-rights with 2 arms and held in position by a carbon-fibre-steel guider. The mount has 4 positions each part to select from, depending on human anatomy In use. The finish of the mount allow for mounting body-supports , with full threading to permit precise placement. The device leads the available downforce direct onto to your uprights towards the tyres.
2-speed gearbox SL8 XLi with superlow inertia
All of the parts of the gearbox have already been made smaller and also as light possible, nevertheless keeping durability along with the list. The gears changed to a 0.8 pitch which can be smoother compared to the initial one. The Serpent gearbox system ended up being our innovation in the late 80-ties and system hardly changed, only optimised, now as system in use with other brands .
Composite 2-speed gears with 0.8 pitch
Smaller lighter gears along with 0.8 pitch for smoothness and gratification. The accuracy machined and hardcoated gears are durable and smooth.
The innovative Serpent True Motion Centax clutch is equipped. Serpent as inventor associated with initial centax clutch, has developed the clutch over time together with present variation excels in power throughput , reliability and eas of environment. The typical version is sold with a metal clutch bell, red centax show and hard anodized clutch-gears.
The kit features high rate ballbearings, mostly sealed people with aeroshell lubrication or oil. All bearings in the automobile ( excluding the servosaver and brakecam) are seated in nylon bushings to lessen vibrations and play.
The shockabsorbers are the latest Serpent RCM units with membrames. The threaded houses with setting-nuts ( o-ring inside) makes ride height changes simple and precise. The RCM shocks are very smooth, and easy to put together and fill. The shocksprings are chosen, matched, flatgrinded, colorcoded units, equal size front side and backside.
The kit will not add engine-pipe, airfilter, body, tyres-wheels or electronics.
The silicone shockoil , silicone fuelline and force line is roofed.
The 977-evo includes the full color construction manual Online as PDF , guide guide and exploded views all in a single. Set-up sheets ( blank and default) are prepared to download seperately, and 2 decalsheets are within the package .
Set-up possibilities:
- Wheelbase
- Caster
- Trailing/leading steering
- Offset
- Kingpin-inclination
- Camber
- Camberchange
- Roll-centers
- Ride height
- Droop
- Width
- Toe-in
- Body weight balance
- Shocks for dampening and springs, shockangle
- Gear ratio with pulleys and 2-speed and clutch
- Anti-roll bar depth
- Flex/no-flex
