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1/10 Scale Electric Buggy:

Kyosho Ultima - 3115 (Radio Controlled Model)


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History, Info (and How To Set-up Tips) for the Kyosho Ultima:


  Released by Kyosho in 1987, the Ultima - # 3115 - is a 2WD buggy, with an alloy formed chassis, gear type differential, coil spring over oil filled dampers, dogbone drive-shafts, plastic ring type bearings, front anti roll bar, Mabuchi RS-540S Motor and Mechanical speed controller.

Kyosho Ultima
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  To race the Kyosho Ultima, it must be fine tuned to improve handling, provide responsive steering and give you the grip to cruise around corners at high speed, without slipping off the track. Small adjustments can make a Big difference and our step by step procedure, will guide you to the best Set-up for your individual driving style.

  Using plain language, our guides will help you choose the right Electric Motor for your Ultima and achieve the best Gearing, for any racetrack, to suit your particular needs.

  Discover what the top racers do to reduce friction and get more from their Bearings with a few common sense hints and tips. Learn how to avoid Radio interference, and we reveal the secrets of Charging your Batteries to give more punch, duration and increased performance.









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Items For Sale:






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★ Kyosho Ultima ★
Kyosho Ultima

★ Kyosho Ultima Chassis ★
Kyosho Ultima Chassis

★ Kyosho Ultima ★
Kyosho Ultima


Buying a Used Kyosho Ultima Buggy (and What to look for)


   Buying a used Kyosho Ultima Electric Buggy, or any used RC Model, has a number of advantages. It is generally cheaper than new, ready built and may come with a variety of expensive hop-ups already installed. Cheap, pre-loved bargains are always becoming available. However, depending on the age of your purchase, it may need a little tender loving care before you can take it out on the back yard.

   The one thing you will always need is an instruction manual. If not supplied with your purchase, they can often be downloaded from the Kyosho website, or purchased separately on eBay. With an instruction manual, any problems with your model Buggy you may discover can easily be fixed.

Dampers
   When you receive your used Kyosho Buggy, make a general visual inspection of the chassis, front and rear wishbones, suspension shock towers etc, for any broken parts that may need to be replaced. Then, take a screwdriver and box spanner and check each self tapping screw and nut for security, taking care not to over tighten.

   Next, for those Kyosho models with oil filled shock absorbers, remove them from the chassis and dismantle the coil springs. The damper shafts should push in and pull out with a smooth action. If you feel a jolt as you change direction, this means the oil has leaked out and must be topped up. At the same time, change the O-Ring seals to prevent more leakage. Also check the damper shafts for damage. If they are scratched, change them as soon as possible.

   If the body shell of your Kyosho Ultima is broken, ripped or damaged in any way, this can be easily repaired with rubber solution glue. Also, for added protection and if available for your Ultima model, fit an under guard to stop dirt and gravel entering the chassis.

Titanium Turnbuckles
   Examine the drive shafts for wear and replace as required. If possible, change them for titanium. The steel shafts wear and bend too easily.

   If you intend to race your Ultima Buggy model at a competitive level, I would also recommend you obtain and fit titanium pivot shafts, turnbuckles, tie rods and steering rods.

   The gearbox of your used Buggy should be opened up to check for gear wear and lubrication. A thin coat of grease is often used on internal gears and although this is fine for basic running around on the back yard, if you intend to race your Buggy at a higher level, this should be removed and replaced with racing oil (ZX1 or Teflon Oil). Of course, this should be reapplied after each race meeting.

Spur Gears
   Gears are a weakness on all Buggy RC models. Head on collisions can easily damage the gear teeth on nylon and plastic spur gears. Heavy impacts can also loosen the nuts or self tapping screws that hold the Electric Motor in Position, allowing the pinion gear to pull out of mesh slightly and rip the tops off the teeth on your spur gear. To minimise this possibility, fit bolts with locking nuts to the Electric Motor mount and remember to check them for security after every two or three runs.

   Ball joints always cause problems. For top level Electric Buggy racing, the plastic ball connectors should be checked and if deemed necessary changed after every meeting. A simple thing like a loose fitting connector popping off could easily end your race, so better safe than sorry.

Servo Gears
   The Ultima steering servo is also prone to damage. In high speed crash situations, the fragile gear teeth of the servo can be broken off, rendering your expensive servo useless, so be sure to obtain a good quality "Servo Saver". Check out my Servo Information article.

   If body roll on your Kyosho Ultima is a problem, handling can be improved with the use of stabilizers, anti roll or sway bars, stiffer tuning springs and, or, thicker silicone oil in the dampers.

Ball Bearings
   If your used Kyosho Buggy comes with plastic and sintered brass bushings (ring type bearings), check the shafts that run in them for wear. Dust and grit can get into these bearings and abrade the shafts. Therefore, you should replace them all with shielded ball bearings. If the model has been run with ring type bearings, you may have to change all the axles and driveshafts. For more information, take a look at my article, How to get the best from your Bearings.

   Finally, good luck with your Ultima model and good racing.


For More on how to Setup your Buggy, check out my Hints and Tips page.


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Manufacturers and Brands Catalogued and Listed by RC-Scrapyard.


   At present, the RC Model Manufacturers, Brands and Distributors covered by us are: ABC Hobby, Academy, Acme Racing, Agama Racing, Amewi, Ansmann Racing, ARRMA, Team Associated, Atomic RC, Axial, AYK, Bolink, BSD Racing, Capricorn, Carisma, Carson, Caster Racing, Cen, Corally, Custom Works, Durango, Duratrax, ECX - Electrix, Exceed RC, FG Modellsport, FS-Racing, FTX, Fujimi, Gmade, GS-Racing, Harm, HBX, Helion, Heng Long, Himoto Racing, Hirobo, Hitari, Hobao, Hong-Nor, Hot Bodies, HPI, HSP, Intech, Integy, Jamara, JQ Products, Kawada, Kyosho, Losi, LRP, Maisto, Mardave, Marui, Maverick, MCD Racing, Megatech, Mugen, New Bright, Nichimo, Nikko, Nkok, Ofna, Pro-Pulse, Protech, PTI, RC4WD, Redcat Racing, RJ-Speed, Robitronic, Schumacher, Seben, Serpent, Smartech, Sportwerks, Step-Up, Tamiya, Team-C Racing, Team Magic, Thunder Tiger, Tomy, Top Racing, Traxxas, Trinity, Tyco, Vaterra RC, Venom, VRX Racing, WLToys, X-Factory, Xmods, Xpress, Xray, XTM, Yankee RC, Yokomo, ZD Racing and Zipzaps.

   This is an ongoing project, with new and "lost in time" RC Model Brands being added as they are found and although most of those listed above have been covered in relative detail, some are still being researched and will be completed in the near future.


















Hints and Tips

On Road Drifting

   Drifting is the greatest fun you can have on four wheels, but it isn't as easy as it might look. There are lots of different methods and ideas on how it should be done and it takes lots of practice to get it right.

   On the street or in the parking lot, drifting is fine, but until you have had hours and hours of practice to master the technique, don't try it on your local race track. If you don't have the total control of your car, you will not make many friends amongst your immediate competitors.

   Controlled Drifting is a beautiful thing when done correctly and in this article I will endeavour to give you a few pointers on where to start. After that, your own personal style will soon blossom.

   As I mentioned before, there are a number of different ideas about drifting, but basically this is what you do.

   Consider a 180 degree turn. Enter the corner at speed, start to turn a little sooner than you might, then just before the apex, touch the breaks for a split second, enough to break the rear of the car free as you enter to turn. When the car begins to slide sideways, steer into the slide, increase the throttle, just enough to balance the car as it drifts around the turn. Coming out of the corner, steer the car straight and apply full throttle.

   Often referred to as a power slide, drifting is much more fun than the basic "Rounding" style, described in a previous article, but also takes more skill, not just in its execution, but in car set-up.

   A little "body-roll" is the thing to aim for when setting up a drifting car, but be careful. With too much body-roll, the car will be difficult to control and tumble sideways off the track. Too little and the weight transfer to the leading wheels will not be enough to induce the slide. A lot of trial and error, with tuning springs, damper oil, damper pistons, stabilisers, tires and inserts is required to get your car as you want it, but believe me, if you can get it right, it will be well worth all your effort.

For More Setup Information check out my Hints and Tips page.







Hints and Tips

Driving On Road

   The basic driving style most commonly used for all forms of on road, tarmac and carpet racing, involves using the full width of the road available and cutting each apex as tight as possible, whilst keeping complete control of the car on the track. The style, often referred to as "Rounding" looks quite simple to those watching, but to get it right needs good hand eye coordination and lots of practice.

   Consider a 180 degree turn. Start with the car positioned towards the outside of the track, then as you approach the corner brake hard and as smooth as you can, guide the car across the point of the apex, gently sweeping round until you are approximately 75% around the corner. At this point, gradually increase the throttle out of the corner, maintaining control and guiding the car to the opposite outside line. By the time the car is straight on the track, you should be at almost full throttle, before you brake hard again for the next corner.

   Developing this driving style comes in stages. Don't try to run before you can walk, install a low powered motor and practice, practice, practice until it becomes second nature. Then, as your skills improve, try something with a little more power.

   Initially set your transmitter to aggressive breaking and gradually reduce this as you get the feel of the car around the corner. Remember, the faster you enter a corner, the faster you exit it.

   When you first try out this style in a race, be patient, keep the car smooth and controlled. Remember the story about the hare and the tortoise? Well, believe me, when you first start in RC, it works.

   To make this driving style work, the car needs to have the right tires, inserts and a low centre of gravity, low body-roll set-up. Grip is the keyword in this instance, without that, your car will slide out of control and you will loose the race.

   If the style you are looking for is to drift slide your car around the corners, I would recommend you perfect the rounding style first, then check out my other hints and tips to learn how.

For More Setup Information check out my Hints and Tips page.










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