RCScrapyard ► Iconic Vintage Radio Controlled (RC) Model Car Archive ► Tamiya XB Subaru Impreza WRC 2003. ITEM: # 57722 TT-01
RCScrapyard Radio Controlled Models
Flags

Tamiya XB Subaru Impreza WRC 2003 - # 57722 (Radio Controlled Model Review)

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

  Released by Tamiya in September 2003, the 4WD XB Subaru Impreza WRC 2003 (#57722) is No.22 in the RTR Pre-Assembled Expert Built Series, based on the TT-01 chassis. The Tamiya Subaru Impreza WRC 2003 kit (#58305) was introduced in July 2003 and although it is Mäkinen and Lindstrom that are listed on the car, it the same Subaru Impreza that Petter Solberg drove to win the 2003 drivers World Rally Championship.

  A pre-painted lexan bodyshell, a 540 motor and radio system are included, but may require a battery, charger and speed controller to complete (specifications differ from country to country).

Tamiya XB Subaru Impreza WRC 2003 - TT-01 # 57722
▼ Scroll Down for More Images ▼


  The TT-01 is shaft driven, on a molded plastic chassis, with gear type differentials, coil spring over friction dampers, dogbone drive-shafts and bushings.

  Like the majority of Tamiya models, this model comes with plastic bush type bearings, that after a short while, when dust and grit get into them, actually wear into the metal drive shafts - our recommendation is that these should be replaced by steel shielded ball bearings ASAP.

  To get the best from the Tamiya TT-01 Chassis, it needs to be fine tuned, for smooth acceleration under control and handle corners at high speed, without slipping off the track. Small adjustments can make a Big difference and our simple to understand, step by step procedure, will guide you to the best Set-up for your driving style.


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

ebay




Gas/Nitro Engines Body Shells Radio Transmitters etc Tires Wheels/Rims Electronic Speed Controllers Battery Packs / Chargers Electric Motors












Items For Sale:











Flags


Tamiya XB Subaru Impreza WRC 2003 - TT-01 Chassis
Tamiya TT-01 Chassis

Tamiya XB Subaru Impreza WRC 2003 - TT-01 Chassis
Tamiya TT-01 Chassis

Tamiya XB Subaru Impreza WRC 2003 - TT-01 Chassis
Tamiya TT-01 Chassis

Tamiya XB Subaru Impreza WRC 2003 - TT-01 Chassis
Tamiya TT-01 Chassis


Buying a Used Tamiya Subaru Impreza WRC 2003
Rally Car (and What to look for)


   Buying a used Tamiya Subaru Impreza WRC 2003 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 2003 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 2003 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 2003 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 2003 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 2003 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 2003 model and good racing.


▼ Scroll Down for More Articles and Advice ▼

Or, check out our RC Model Car Setup Guide














^ TOP ^












Tamiya Buggys Tamiya Trucks Tamiya Monster Trucks Tamiya Rock Crawlers Tamiya Off Road Chassis Types Tamiya Touring Car Tamiya Drift Car Tamiya WRC Car Tamiya M Chassis
Tamiya Tractor Trucks Tamiya Touring Car Chassis Tamiya F1 Tamiya F1/Le Mans Chassis Types Tamiya Military Tamiya Tanks












Hints and Tips

Look after your Gears

   In RC there are a number of different gear teeth sizes we tend to use, based on two systems. Imperial and metric. The imperial system has sizes 24dp, 32dp, 48dp and 64dp. DP stands for Diametral Pitch and the number refers to the number of teeth per inch. The metric system has sizes 0.4m, 0.5m, 0.6m, 0.7m, 0.8m and 1m. M stands for Module and is the ratio of the reference diameter of the gear divided by the number of teeth.

   The different sizes are used basically for strength. 32dp gear teeth are larger than 64dp gear teeth, therefore the 32dp gears are by design stronger and for this reason are more commonly used on a number of entry level buggys, to help them withstand the knocks and crashes by drivers new to RC and nitro models because of the higher torque levels involved. Also, the bigger the scale of the model, the stronger the teeth need to be.

   64dp and its metric equivalents are generally the choice of 1:10 electric on-road racers, because of its higher range of ratio options and smoother action in comparison to other sizes. On-road models are not as hard on the gears as off-road, so the weaker, small tooth size is not a problem.

   48dp and its metric equivalents tend to be preferred by 1:10 off-road racers, mainly because of their strength in comparison to the 64dp and smoother operation than 32dp. Off-road models need gears that can handle all the knocks and bangs, as well as heavy landings off high jumps.

How to set Backlash between Gear Teeth


   Setting your gears is the most important part of looking after your gears.

   Backlash is basically the gap between the teeth in mesh. The perfect gear setting must have a small amount of backlash. To achieve the best setting use a very thin sheet of plastic between the pinion and spur gear teeth as you press them into mesh. After tightening the motor mount screws, use your fingers to spin the spur gear and roll out the plastic sheet.

   If the setting is correct, there will be a small amount of movement (backlash) between the gear teeth before they catch. If the mesh is too deep, there will be no movement between the teeth, this will create friction and if you run them like this, they will grind together, wear and break. If the mesh is not deep enough and only the tips of the teeth are touching, the excessive backlash will soon damage and strip the tops off the teeth rendering the gears useless.

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







Hints and Tips

Tire Inserts

   Once upon a time, all RC model tires were equal … they were all trash. None of the old tires had any kind of internal support, because the hard compound they were made of didn't need it. But that was before the newer soft compounds were developed. These new tires were so soft that if some kind of insert was not used they would just lay flat under the weight of the car. Thus, the new science of tire inserts was born.

Inserts for Off-Road Tires


   The basic soft foam inserts that come with many off-road rubber tires can be in one of two types. They can be basic rings of sponge, or the cheap and nasty strips of sponge. Many of the latest foam inserts now come pre-shaped, but more than often, they will need some work done to them before they are inserted into the tires.

   To insure the tires works efficiently, the foam inserts must be carefully trimmed around the edges, where they make contact with the inside of the tires. The idea is to reduce the effect of any hard edge when the tire hits the ground and vastly improves grip when cornering.

Inserts for Tarmac On-Road Tires


   On-road cars on the other hand have the luxury of only having to make the choice between hard, medium and soft, molded sponge or rubber inserts that fit snugly inside the wheels and I can testify, the effect of these inserts can make a big difference on the track.

   When you get to the race track, the first thing you check is the track temperature. This gives you an insight into which tire to try first. In my hay day, I would use three compounds, soft medium and hard, each prepared, glued to the wheels with soft, medium and hard inserts, so a total of nine sets of wheels with tires and inserts. Depending on the track temperature, my first practice session would be with the medium insert, then depending on the grip I got from those, I would either stick with them or for more grip try the softer insert. If the car had too much grip and a tendency to over-steer I would move on to the harder insert. Once the right tire and insert combination is found, only then I would try other settings to improve the cars handling. Remember, one change at a time.

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








^ TOP ^


On/Off Road
RC Models:

Radio
Equipment:

Accessories: