Serpent Cobra SRX8 Truggy EP 1/8 4WD SRX8Te

Using a similar design as our hugely successful SRX8-E, the 4mm 7075-T6 aluminum chassis continues to provide a solid foundation for one of the best E buggies ever produced. Let’s use that DNA and produce one of the best E-Truggies ever made. Being that the chassis is flat, it will provide us the absolute most flexible design today and into the future. Having weight of this chassis the lowest possible, it really helps to prevent traction rolls, as well as helps give better control while in flight. Aiding in lowering the CG, it also helps the polar moment and helps the car track straight even in the roughest terrain. 

The SRX8-E motor mount continues as a carry over and is an excellent fit for the SRX8-T electric. This motor mount could be the best we have designed, as well as the most versatile. Having a solid track record of reliability, as well as being resolute in its ability to hold mesh, this mount continues to elevate the game. 

The main motor mount, Diff insert, motor slide, and universal mount are all made from 7075-T6 aluminum, lightweight and built to last. You can mount the motor to the slide using m4 metric socket head screws, for supreme fixing power. 

On our previous S811-T we used an internal ratio of 10/43, and then had to use a clutch bell with 13 teeth and a spur gear that was 50 teeth. In an effort to maximize carry over parts from the entire SRX line of cars, we completely re-configured the internal ratio. We determined a new pinion and diff gear were needed. We chose a 10t pinion with a 46t ring gear. By using this ratio, it allowed us to carry over all clutch bells and spur gear options, while having the perfect final drive ratio. The end result was a faster accelerating truck, while reducing rotating mass. All of these choices then lead to less strain on the clutch and even more acceleration than expected. In addition to a better performing clutch, it also decreased engine temperatures, ultimately resulting in longer run times. 

When delivering 4S Lipo power to the wheels, the SRX8-E driveline has proven to be extremely durable. As a carryover from every model of SRX8-E we have ever made, the 7075-T6 center front driveshaft has served us well. The driveshaft is not only light weight but is extremely strong. Couple the front aluminum shaft with the spring steel rear shaft, and you will never be let down. Delivering the power from most any KV motor on the market, this driveline will propel your model to the finish line every single time without question. With years of experience under our belt in Electric 1/8 racing, our proven drive-train is without question, class leading in durability. 

These new differentials were a topic of concern for racers of the SRX-8. The reliability and performance of the original differentials were actually pretty good. The market though has other plans for what a high quality race car must have. 

One of those must haves are high volume large internal gear diffs. We manned up here, and went back to the drawing board and completely re-tooled our differential approach. The internal gears are a staggering Mod 1.25 which puts them at the largest in the market place.

With a maximum engagement surface on the tooth for earth shattering oil shearing, coupled with larger volume housing, these differentials reduce any fading or loss of performance. The internal ratio is industry 10/20. Make no excuses now boys, these babies will deliver the performance when you need it most. 

16mm threaded shocks with x ring seals. These shocks have been refined and perfected. The shock action is almost friction free, seal pack is 2nd to no other and the seals are like that everlasting candy people dream of. 

They have extremely tough 3.5mm shock shafts and the piston is fixed by a nut for maximum reliability. The threaded bodies and collars make it super easy to get the ride height regardless of spring rate. The shock can be set up in a variety of ways depending on your configuration. 

The kit includes our “Pro “cap which gives you maximum versatility and value so you can use them as emulsion or bladder shocks all in one cap. The cap and shock bodies are both Hard anodized to extend the life of the shock as well as improve the shock action.

Included in the kit are machined Delrin 6 hole pistons for ultra smooth shock action.

All new super durable suspension arms. They are longer, stronger and more adjustable than the S811-T ever dreamed.

The front and rear suspension arms have been beefed up to the max. Why…because we love to finish every race we start. The front and rear suspension arms, both feature arm plates that can be added, removed or swapped out for Carbon fiber. 

This feature can be used for a host of reasons, which can include looks and or performance. Depending on your grip level and track surface, you can adjust the stiffness of the SRX8-T’s arms. 

Generally stiffer arms have a more linear feel but can reduce grip. This happens by forcing the shock to do more work. 

A softer arm can increase grip by reducing the shocks importance, but can also give the car a less direct feeling. All of these adjustments can have a huge impact on your lap time and results.

On our first S811 we introduced the world of off-road to Ball bearing raced sway bars. Now becoming more fashionable by other brands, we love to innovate and advance the hobby. Both the front and rear suspension of the SRX8-T will have been given this advancement in design. The sway bar will be securely fastened with collars and the left and right play can be adjusted. You can be rest assured there is no un-necessary friction and your roll bar is operating properly when driving your race car. 

In addition to the ball raced roll bars. The arms have a captured pivot-ball for the sway bar. This design allows you to adjust the play of the ball as well as make sure you have no binding in any direction when your suspension operates. The plastic nut, keeps the ball retained into position. You can replace the plastic cap with an aluminum optional version if you like a more secure nut.

When we increased the length of the front and rear arms, and based off testing of the S811t, we simply needed more support. The solution was to re-position the sway bars leverage on the suspension arm. The net result is the ability to run much softer wire diameters, and still achieve the same roll stiffness. The net result is a more linear lean in the suspension, which translated into more grip, and faster corner speed. 

The sway bars can be purchased in a variety diameters ranging from 2.2, 2.3, 2.4, 2.5 and 2.6mm for the front and rear.

Building a reliable and long lasting race car starts at some of the most fundamental levels. The outer driveshaft’s joints are exposed to some of the harshest conditions, you can imagine. With those being dirt, heat, rocks, and friction, the only way to keep them well lubricated and maintenance free is a securely fastened boot, where you can safely place grease. 

The SRX8 has a simple to assemble and high tech rubber boot to complete the task, with ease. The life of the driveshaft is increased over 50% by being sealed, and keeps your models performance consistent no matter the conditions all the while reducing the need for replacement parts. 

With longer life as well as Load distribution, we increased the outer driveshaft ball diameter from 9mm to 10mm. We also increased the inner diameter of the axle, and also increased the length of the coupler. This additional 1mm increased the life of the pin as well as the binding when under heavy load.

Although these things seem small in nature, they pay huge dividends in the life and performance of your SRX8-T. The roll and lean of the suspension became more consistent, joint temperatures were lower, which enhanced our ability to ask for more from the setup of the truck. 

Lower maintenance costs, as well as better performing CVA’s, are just some small details you can expect to find on the all new SRX8-T

We understand the importance of how fast people want to be able to clean/maintenance and re-assemble their cars. To minimize parts as well as reduce the screw count, this electronics/servo mounts not only saves you time working on your car, but also reduces maintenance times. 

This mount is also extremely durable as well as securely mounts the servo, with minimal flex.
The speedo mount also doubles as the front brace, again, reducing the parts count and the need to carry more spares than necessary. 

The receiver box can be mounted in multiple locations depending on the layout you wish to use. The receiver box can be mounted directly to the speedo mount for a saddle layout, or to the chassis when using the block layout. 

When it comes to the Lipo Battery, you have many options, 2s, 4s. The SRX8-E Pro kit, comes with the Block Layout. This layout has been selected by our team drivers during testing to be the best performing, so it was opted for in the kit. The lower plastic mount is securely fixed to the chassis and mounted directly to the surface to ensure lowest possible CG. This design has a large variety of advantages, but for sure one of them, is the ability to run just about any battery you can find. Whether you want to double up a couple of 2s lipos as a 4s battery, or run any size of 4s battery, this car will have you completely covered. The Velcro is the lightest weight, while being some of the strongest ways to fix the battery. The Velcro is supplied in the kit and the Serpent logo is embossed on them. 

When it comes to racing in the mud and/or wet conditions, keeping the mud from building up on the rear arms can be a problem. Included in the kit is a pair of light weight polycarbonate mud guards. With the intent of keeping the mud and dirt from caking up on your car, which can weigh it down and reduce performance, these babies will answer that call. You can keep them clear, or paint them to match your stylish paint scheme. If they are not for you, of course you can run your car without them too, it’s up to you to decide when and how you will use them.

No matter what model of SRX8 or SRX8-T you have purchased, all models have been given upgrades in durability at the shock tower locations. With reliability as a top goal in mind and the fact we want each and every racer to finish ever race they start, aluminum shock towers are up to that task. We use the highest grade 7075-T6 aluminum money can buy, to ensure they are a no compromise when it comes to strength and reliability. The towers are a staggering 5mm thick, stylishly machined and then anodized to give them an even more durable finish. Carbon fibre shock towers are also available as optional if that suites your fancy. 

When racing the truggy class, steering is of the utmost importance. Without it, you will be pushing your brains out all over the race track. In our extensive testing, it was determined; that the 0 degree steering spindle coupled with a 15 degree caster block was absolutely perfect. With enough steering on tap to rip any corner, while balancing that with the correct amount of rear grip, the SRX8-T is a corner shredding machine. 

The steering blocks and caster blocks are made from super high strength 7075-T6 aluminum alloy. The parts were anodized black, and re-machined to have a stylish shiny silver edge. The looks match performance here ladies and gentlemen. Additional Caster blocks are available in 13, 17, 19 degrees, if the need for more or less steering is demanded.

In order to increase the life of the Steering spindle and Rear upright bearings, we lengthened the axles, and spread the distance between bearing faces out. 

This enhancement not only improves bearing life, it also reduces play, and gives you more stable camber settings on a vehicle with massive tires like a truggy. Expect more consistent cornering, and improved tire wear.

The Front steering spindle, made from 7075-T6 is black anodized with silver machined edges, beyond sexy.

The steering spindle also accepts 5 different Ackermann plates. 0,1,2,3,4. Generally 0 is the easiest steering while 4 is more aggressive. You can fine tune your SRX8-T’s steering to fit your driving needs. All plates can be easily identified by the notch marks in the side of the plate. 

With the tracks reaching higher traction levels and higher speeds, the demands of more grip and stability are in hot commodity. Aerodynamics is nothing short of a way to enhance your models performance. We took our super tough and durable original wing mount design and made it taller. 

With an additional 15mm of height, this mount puts your wing up into “fresh “air providing even more down force as well as Lateral stability. With the additional aerodynamic gains your wing is now capable of producing you can pull the throttle harder and approach turns with even more confidence. Don’t be afraid to push it with this bad boy mounted on your new SRX8-T…….

As a recent upgrade in all of Serpent’s Racing kits, the SRX8-T kit is loaded with NSK Ball Bearings. The Japanese bearings are super high quality and prolong the life of your model race car. Lower friction, increased efficiency, reduced time between replacements, these NSK bearings are no joke, and we hope you enjoy the added value in your kit. You can find the NSK bearings, at the wheels hubs, steering spindles, throughout the drive train and steering.

The body business is as subjective as you can only imagine. With so many people having a difference of opinion on what is cool, we really hit this area hard with a good focus group. We pooled together dozen of individuals, to decide what direction we should go. In the past we have some great looking bodies, and well some that were less than great. It was time to get this right for the SRX8-T and also fit the SRX8-T Electric. We took all the great styling we could find in a larger variety of bodies, and then placed some of our own stylish concepts from all bodies we have previously made. The end product was a body that looked rough, tough and stylish, fit for a real Truggy. We hope you love the appearance as much as we do, and find confidence in the way your truck looks like on the race track.

When embarking on the mission to create an all new Electric Truggy the only option moving forward was to carry over as many parts as possible from the SRX8-T. With the feedback from our team drivers racing the previous S811-T Electric we had some real big shoes to fill, we often heard, better this, better that, better here and better there. With this mindset, we were aware average execution was not going to be good enough. Spending countless hours on the styling, fit and finish of the components as well performance aspect, we wanted to raise the bar of what is expected from a high quality racing truck. Thankfully, the fundamentals of the SRX8-T were a fantastic foundation to begin with; it really helped us to cut down on lost development time as well as excess spending. With the demands of a Truck, being more so than a buggy, we had to innovate in areas not seen on any of our previous SRX8 line of vehicles. As a brand we take pride in moving forward, no matter how big or small those steps are… Just keep moving forward. When it’s all said and done, we are very proud to introduce you, the long awaited SRX8-T Electric. The SRX8-T Electric is super durable and savage in nature on the race track. The more you feed it in skill, the faster lap times it will give as a reward. It is truly a fantastic truck, and we wish you the absolute best results on the race track.

Sincerely,
Billy Easton
Serpent Designer