RCScrapyard ► Iconic Vintage Radio Controlled (RC) Model Car Archive ► Tamiya Subaru Impreza WRC. ITEM #58226 TL-01.
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Tamiya Subaru Impreza WRC - #58226 (Radio Controlled Model)

1/10 Scale Electric Rally Car - TL-01 Chassis:

  Released by Tamiya on December 8, 1998, this TL-01 Chassis based, self assembly electric RC model, is of the Subaru World Rally Team Impreza in which Colin McRae took overall 3rd place in the 1998 World Rally Championship (WRC).

  The lightweight Lexan polycarbonate body shell in this kit is an accurate copy of the cars classic lines. Decals of the distinctive Subaru livery are included in the kit.

Tamiya Subaru Impreza WRC - #58226 TL-01

  The TL-01 monocoque frame chassis is shaft driven four wheel drive, with orbital gear differentials front and rear. The suspension is four wheel independent double wishbone with coil spring over friction shock absorbers.

  The stick battery is positioned in the middle across the width of the chassis. Steering is via two plastic track rods of fixed length. These can be replaced with appropriate length turnbuckles if desired to allow some toe-in adjustment for improved cornering.

  The kit comes with nylon/plastic and sintered brass bush type bearings that after a short while, when dust and grit get into them, will abrade the metal cup drive shafts that spin in them - if you are building this kit to race seriously these should be replaced by steel, rubber shielded ball bearings.

  To drive, with the standard silver can motor and smooth operating ESC, the TL01 is the ideal car for the beginner. Steering is precise and handling is predictable.


      Rating: 44 Stars out of 5 Reviewed by: RCScrapyard     Manual.





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Tamiya Subaru Impreza WRC #58226 TL-01 - Chassis
Tamiya Subaru Impreza WRC #58226 TL-01 Chassis
Tamiya Subaru Impreza WRC #58226 TL-01
Tamiya Subaru Impreza WRC #58226 TL-01 Body Shell

Buying a Used Tamiya Subaru Impreza WRC
Rally Car (and What to look for)


   Buying a used Tamiya Subaru Impreza WRC Electric Rally Car, 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 Tamiya website, or purchased separately on eBay. With an instruction manual, any problems with your model Rally Car you may discover can easily be fixed.

Dampers
   When you receive your used Tamiya Rally Car, 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 Tamiya 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 Tamiya Subaru Impreza WRC 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 Subaru Impreza WRC 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 Subaru Impreza WRC Rally Car model at a competitive level, I would also recommend you obtain and fit titanium pivot shafts, turnbuckles, tie rods and steering rods.

   On Belt driven models, the Drive Belts need checking at regular intervals for wear, tension and damage. If deemed necessary, adjust the tensioning pulley until the belt can be depressed in the centre by no more than around 5mm. If the belt was slack, also examine the drive pulleys for wear. The teeth should provide a well seated fit for the belt teeth and not be rounded on the corners. If the belt teeth do not fit snugly, change the pulleys as soon as possible. For top level racing it may be prudent to replace all belts and pulleys after each race meeting.

   For Gear driven models, the gearbox of your used Rally Car 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 Rally Car 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 Rally Car 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 Rally Car 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 Subaru Impreza WRC 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 Tamiya Subaru Impreza WRC 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 Tamiya Rally Car 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 Subaru Impreza WRC model and good racing.


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














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Ball Differentials


   Ball differentials were developed in the late 1980s to replace the high friction Gear differentials. Mainly used on Tamiya Touring Cars, Le-Mans and Formula One Cars, Ball Differentials are designed to be totally frictionless and smooth in action to provide effortless drive to the wheels on cornering, where the inside wheels must rotate slower than the outside wheels for controlled stability.

   Basically, the configuration of the Ball Differential is a number of small case hardened steel balls, spaced in a plastic cage that is in effect the drive gear for the axle. On each side of the gear are two hardened and tempered pressure plates that clamp over the steel balls, held in position by a screw through the centre of the assembly, incorporating a small thrust bearing and coil spring. The adjustment of this screw is crucial to the effectiveness of the differentials action. Too tight and the free movement of the diff is restricted. Too loose and the balls will slip on the plates when accelerating out of the corner, not only reducing drive, but damaging the balls and pressure plates not good. The optimum setting is obviously somewhere in between and is where the small coil spring is important. It must be compressed, but not fully, to provide the desired exact pressure required. With a little practise setting up the diff become second nature. Patience is the word for this procedure.

   Lubrication of Ball Differentials is essential for that smooth operation and special greases have been developed that allow the balls to roll freely in the cage and push aside as they roll over the pressure plates.

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



Hints and Tips

Gearing to Win

   Just because you have the latest model, the best available batteries, the most powerful electric motor or nitro engine, doesn't mean you will go out and win everything in sight. The fastest car on the track is rarely the one that wins, it's the one that can accelerate out of corners under control and remains consistent and efficient from the start to the end of a race.

   In days gone bye, all you had to consider was the number of mili amp hours (Mah) in your battery and the current draw of your high powered motor. Gearing for a five minute race was a balancing act. But with the development of the new high capacity batteries, brushless motors and smart ESC, all that changed. Now, gearing is more of a matter of what suits your driving style and how quick your reflexes are on the sticks, the trigger and steer wheel of your transmitter. So, where do you start?

   At your local club track, you quickly find the right combination and set-up for your car by talking to the more experienced members. After a while, as your knowledge grows, tweaking a few things here and there can give you that small edge to keep you competitive. So, it follows that on tracks you don't know, you should talk to the locals there, who may be racing a similar model to your own and adjust your set-up to suit.

   Gearing correctly for any given track is absolutely crucial if your car is to be competitive.

   Too high a gearing may get you in front at the start of a race, but as your motor begins to overheat and lose efficiency, that initial advantage will soon be lost.

   Too low a gearing and although it may get you past your opposition accelerating out of the corners, you will loose that place again on the fast straights. Gearing low will always get you to the end of the race, but it will hardly ever get you on the winner's rostrum.

   Having said that, on tracks you don't know, initially it's always best to err on the side of low gearing. For your first practice laps on a new track, choose a motor that has a reasonable current draw and with a fully charged battery, try a race length run, learn the corners what line to enter and exit, where you can accelerate to overtake and how fast you need to be on the straights to keep up (not overtake) the opposition. After your practice race, check the remaining capacity in your batteries and the temperature of your motor, (keep records of each motor and discover at what temperature a specific motor loses efficiency all this helps when selecting the right gearing.)

   Armed with this knowledge you can then consider how to alter your gearing.

   If the motor is cool (in comparison) and your battery has ample remaining charge, try a larger pinion perhaps one or two teeth more. Don't overdo it.

   An overly hot motor and low remaining capacity battery speaks for itself. The race timed practice run should have given you an insight to this problem. Obviously, in this instance you must use a smaller, less teeth pinion, or start again with a milder, less powerful motor.

   If the motor is hot, but not too hot, the battery has ample remaining charge and you did not notice any drop in efficiency towards the end of your practice run, then you are close to the optimum set up for that particular motor.

   Depending on how competitive that set-up is, you can stick with it, maybe tweak a tooth up or down, or repeat the process with a different motor to get you where you want to be.

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









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