DYNA STORM

Dyna Storm is named after the first model released for sale that uses this frame:

– Dyna Storm, model number 58116 put on sale in 1992 and available on the market until 1995,
– Dyna Blaster, model number 58123 put on sale in 1993 and available on the market until 1999.

The Dyna Storm frame is the latest development in the line that began with the Astute model number 58080. The two models share the design philosophy, but Dyna Storm and Dyna Blaster have more differences than commonalities. In the early 1990s, the Tamiya TRF team (the acronym stands for Tamiya Racing Factory) developed a new racing prototype, code number TRF 211X, based on the Super Astute. The Dyna Storm model was derived from this project made for racing in about 100 examples. Parts list for the Dyna Storm.

The main features of this model are:

– traction on the rear wheels,
– newly designed ball differential development of the one installed on the Astute.
– MDC multi-disc clutch system, the acronym stands for “Multi Disk Clutch.” This new clutch is the development of the TTC (the acronym stands for “Tamiya Traction Control”) installed on the Astute. The operating principle of the MDC is based on friction between moving parts. On the drive shaft there are three disks we call friction “rotors” (highlighted in red) interspersed with four “flat washers” we call stators (highlighted in blue). These seven elements work by yielding friction between them to transmit motion from the gear to the axis. On the axle is a 4 mm nut (highlighted in green) that determines the level of torque to be transferred by varying the pressure on the spring (highlighted in orange) that generates the force that regulates the friction between the rotors and stators. This very complex system is intended to improve the transfer of torque from the electric motor to the wheels by limiting slippage and protecting the electric motor and gears.

To calibrate the clutch, it is best to start from a condition in which the rotors and stators slip between them transferring less torque to the wheels. Under these conditions, the effect is that the electric motor runs at full speed and the rotation is not fully transferred to the rear wheels. Act on the 4-mm adjusting nut by applying quarter-turn adjustments; in the above case, tighten to increase the torque transmitted by the electric motor to the wheels.
Conversely, if there is too much wheel slip relative to the track surface, it means that the transmission is transferring too much torque; under these conditions, unscrew the 4-mm adjustment nut by a quarter turn. The clutch is to be calibrated according to the grip conditions, which are determined by the track surface and the wear condition of the wheels.

– four independent suspension with CVA shock absorbers,
– the battery is arranged longitudinally to improve weight distribution.
The two models are distantly related; the Dyna Blaster is a simpler and less complex development of the Dyna Storm. The parts that are in common between the two models are A, C, D, E and H to which are added gears, axles, some nuts, bolts and screws.

The two models differ in:
– different conformation of the main frame consisting of FRP sheet (the acronym stands for “Fiber Reinforced Polymers”) for the Dyna Storm and a plastic tub for the Dyna Blaster (right in the picture)

Both frames offer excellent torsion resistance as they feature a second upper half frame that is FRP for Dyna Storm (highlighted in green) and plastic for Dyna Blaster.
The Dyna Storm frame also features a right side guard and a left side guard made of plastic. These parts further increase the frame’s torsion resistance

The lower FRP frame of the Dyna Storm (right in the image highlighted in orange) is an evolution of the frame of the Astute (left in the image highlighted in blue).

– the four Oil shock absorbers; on the Dyna Storm they are blue low-friction metal alloy and on the Dyna Bluster they are black plastic. The alloy shocks are exclusive to the Dyna Storm model throughout Tamiya’s production portfolio; they are an accessory also available as spare part number 53125.

– In the Dyna Storm the rear suspension is an evolution of that of the Madcap chassis, while the front suspension is an evolution of that of the Super Astute chassis. The suspension configuration of the Dyna Blaster is the same as that of the Dyna Storm with the difference that in the Dyna storm the suspension towers are FRP, while those of the Dyna Storm are plastic. The towers of the two models while taking up the same geometry are not interchangeable because of the different holes for attaching the shocks to the suspension arms. The front suspension towers are tilted backward improving the action of the shock absorbers: in suspension design it is necessary to find the right compromise because greater tower tilt improves handling of bumps, less tower tilt improves steering response. Pictured are the front suspension towers and the front and rear suspension arms, on the left the Dyna Storm solution and on the right the Dyna Blaster solution.

– Tamiya releases these two models for sale without including a motor in the box and offers the Acto Power motor code 53122 as an accessory

– electronics of the two models are arranged differently, the optimal solution is the one that finds space in the Dyna Storm. In the Dyna Storm the receiver and speed controller which are installed to the right and left of the battery respectively. In the Dyna Blaster the receiver and speed controller are installed to the right and rear above the battery, respectively. On the left is the Dyna Storm solution and on the right is the Dyna Blaster solution.

– the two bodies are different.

Re-release

To date (2024) there has been only one re-release of the Dyna Storm model number 49190, offered for sale in 2001 and available on the market until 2002; there are no substantial differences with the original model. The re-release comes with an electric motor and some gearbox bearings have been changed.

Nitro-powered evolution

In 1993, Tamiya’s first model equipped with a Nitro-powered engine was released: TR-15T code 44001.

The TR-15T shares some parts with the Dyna Storm and Dyna Storm, but these parts are reinforced with fiberglass for the heavy-duty engagement with the Nitro engine.

The TR-15T shares with only the Dyna Blaster model the front and rear suspension arms, which, however, are reinforced with fiberglass for heavy-duty engagement with the Nitro engine.

In addition, these two families share the MDC multi-disc clutch system, the acronym stands for “Multi Disk Clutch.”

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