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Rear camber

Front camber

Front caster

Rear anti roll-bar

Front anti roll-bar

Gear-ratio

Ackermann

Basic Tuning

Springs

Shock-angle

Springs:

 by using a softer spring you will have more sag, more chassis 

    roll/lean, more dive and a less responsive car this might be better on low-grip  

    surfaces; by using a harder spring you have less sag, less body lean, less dive 

    and a more responsive car. What to apply depends on driving style and 

    grip-level surface. This is more suitable on high-grip surfaces.

Shock-angle:

 the angle at which the shocks are mounted create a different 

    suspension feel; the more vertical, the harder it feels, the more horizontal, 

    the softer it feels. 

Oil:

 the viscosity of the shock-oil defines the dampening of the shockabsorber. 

    Thinner oil will be softer, with slower response, thicker oil will be harder 

    dampening with faster reponse. The dampening can also be fine-tuned by 

    fitting other pistons with more or less holes, which is an optional. 

Differential:

 you can make the gear differential harder or softer by using a 

    different oil viscosity.  Lighter oil will create  a looser diff which increases rear 

    traction on acceleration, but also more understeer , and a harder differential 

    will  decreases rear traction on acceleration, but also more on-throttle steering

Front anti-roll bar:

 by using a softer anti-roll bar you will have more sag, 

    more chassis roll/lean, more dive and a less responsive car. But you will 

    have more steering once you have entered the corner

Rear anti-roll bar: 

by using a softer anti-roll bar you will have more sag,  

    more chassis roll/lean, more dive and a less responsive car. But you will 

    have more rear traction  and a more stable car

  

Toe adjustment: Front: 

adjusted with the track-rods, make longer  

    or shorter. More toe-in will create more steering, but less stability; 

    toe-out will create a more stabile car, with less steering.

Toe adjustment: Rear: 

adjusted with suspension blocks (optional). 

    More toe-in will create more traction, more stability, but less speed.  

    Less toe in will create a less stabile car, with less traction but higher speed.  

Front camber:

 using more negative camber in the front will  give you more 

    steering but also increases possible traction roll.

Rear camber:

 using more negative camber in the rear will create more grip 

    in the rear meaning also creating more understeer.

Front caster:

 use optional caster blocks to change caster,  more  caster will 

    create more steering but also increases possible traction roll. And less caster 

    will create less steering but also decreases possible traction roll.

Wheel-base  length:

 a longer car will be more stabile and react slower, 

    a shorter car will be more nervous and more direct. 

Gear-ratio:

 spur and pinion: for correct gearmesh keep a pieces of notebook 

    paper at hand, to put between the spur and pinion for correct mesh.

Ride-height:

 you can change the ride-height of the car, by applying more or 

    less pre-load on the springs, turn the pre-load adjusters to set the desired 

    height and keep left and right the same.

Rear caster

Rear 

camber link

Speedcontroller

Shocktower rear

Race-tyres

Summary of Contents for S811-Be Cobra RTR 2.0

Page 1: ...1 8 scale Ready To Race electro Buggy USER MANUAL REFERENCE GUIDE...

Page 2: ...2 Note car shown in images may differ from box content...

Page 3: ...cations and leads the way in 1 8 scale electro offroad chassis design using all the knowledge our designers have gathered from racing offroad cars for over 15 years into this design too Continuously p...

Page 4: ...years Important pre cautions gOnly run the car is designated areas or areas with very few people so no one can get hurt gThe car has a lot of power and the turning parts on the car can cause damage al...

Page 5: ...aning gum g Tools selection of allen tools and screw drivers g Thin bearing oil g Hobby knife g Transmission grease g Camber gauge g CA glue g Degreaser 5 Equipment Included with your model g Serpent...

Page 6: ...k Front wishbone Steering servo Steering system Steering link Chassis Center diff Battery cover Spur gear Rear camber link Differental Central rear driveshaft Speedcontroller Brushless motor Rear stab...

Page 7: ...ar But you will have more steering once you have entered the corner g Rear anti roll bar by using a softer anti roll bar you will have more sag more chassis roll lean more dive and a less responsive c...

Page 8: ...lay and pins Clean thoroughly as needed and lubricate the touching parts with a small amount of grease or oil Differentials Check the differentials and gears for wear and dirt and clean as needed Chec...

Page 9: ...FR FR std 600241 Antiroll bar front 2 5mm 600242 Antiroll bar front 2 7mm 600263 Washer M3 alu 12 600284 Shocktower FR alu light 600297 Lightwheight wheel nut 17mm 4 600303 C hub 10 L R alu 600304 C h...

Page 10: ...90185 T shirt Serpent Splash white XL 190186 T shirt Serpent Splash white XXL 190187 T shirt Serpent Splash white XXXL 190188 T shirt Serpent Splash orange S 190189 T shirt Serpent Splash orange M 190...

Page 11: ...600147 600421 600198 600480 1396 110127 600376 600202 600209 600110 600210 600215 600144 600425 FRONT REAR CENTER 600213 1396 600214 600110 600202 600200 110124 110102 600446 600624 600443 600324 6003...

Page 12: ...0237 110116 110116 600546 600531 600531 110402 110401 600124 1393 600534 600552 600122 600551 600125 600126 110148 600641 1396 600634 1337 110138 600112 600680 110141 600633 110175 110142 600126 11013...

Page 13: ...26 600137 600215 600223 110148 600137 1396 110115 1337 600481 600190 600126 600129 600151 A 5 A 6 110138 110105 600141 600197 600535 110216 600537 1337 110115 600539 600481 600539 110137 600223 110148...

Page 14: ...70 600128 600128 600105 600109 600169 110437 600167 110140 110159 600555 110153 110127 110140 600195 RR 600576 RR 600252 600245 600575 FR 600194 FR 600111 600574 600145 600577 600573 110130 600180 600...

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Page 16: ...w w w s e r p e n t c o m i n f o s e r p e n t c o m 82354 2 Manual ref guide 811Be RTR 2 0 www serpent com 600006...

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