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Part Number 33007B
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Retail Price:  $1,379.99
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Final check conducted individually by former world champion and Inferno developer Yuichi Kanai!
Semi-assembled kit can be ready same day for the big race!

Fine-tuned for continuous improvement by Yuichi Kanai, the new ‘Spec A’ version of the Inferno MP9 TKI4 is packaged as a semi-assembled chassis kit. Taking the previous TKI3 model’s reputation for speed to an extreme level, the new TKI4 features revised front/rear suspension that delivers improved cornering stability for sharper control. Recent demand for precision setting for aerodynamic performance is met with a newly designed body and rear wing that enhances both cornering stability and traction. A thorough revision of all key components focused on delivering an edge in the heat of racing battle through superior maintenance, durability and reliability. In addition, the ‘Spec A’ version is semi-assembled with complex components such as Big Bore Shocks and gear differential pre-built using the special knowledge of skilled staff. Before shipping, Mr. Yuichi Kanai completes a final check of each model to ensure it meets the standards required for immediate racing success. Here is a model that is designed not only for advanced racers, but for anyone who wants to challenge 1/8 GP buggy racing at the highest level.

Required to complete:

  • Installation of R/C system such as receiver and servos and connection of linkage
  • Painting of body and attachment of decals
    (Body is pre-cut but requires opening of sections to suit your choice of engine head and exhaust).
  • Tires and inserts need to be purchased separately and glued to wheels.
  • Installation of engine, clutch, manifold and muffler. Clutch assembly and installation of fuel tubing, linkages, and air cleaner.
  • Wing assembly and installation.

                                   Differential Assembly - Checkpoint

Sealant is applied to the set screw on the diff case.

Screw tension is one of Kanai san's key points.

Diffs are filled with #5000 Front & Center, and #3000 for rear.

Oil volume in every diff is controlled at this point.

Gears are sprayed off to remove oil.

Sealant has been added to gasket to prevent oil leakage.

Movement is manually checked once assembled.

Of course, front, rear, and center are all checked.

Once cleaned, this completes the diff assembly.

                                   Shock Assembly - Checkpoint

#500 for the rear and #600 for the front shocks.

New 1.5X5 hole pistons are used in the TKI4.

Oil is filled once pistons and shafts have been installed.

Shocks are left to rest to remove air bubbles.

A thin coat of oil can prevent deformation once cap is fitted.

Kanai san says "This is a key step in shock assembly".

Shocks are checked for smooth movement.

Shock assembly is now complete!

                                   Geometry Checkpoint

Once an actual engine and R/C system have been installed to adjust the chassis height and alignment, measurement of front/rear shocks, front/rear upper arms and tie rods is conducted. Precise measurement of each machine produced is undertaken at this stage.

With its complete quality control process of assembly and setting, the ‘SPEC A’ represents the latest and strongest ‘works version’ machine ever released. Install your R/C system and engine to experience what it's like to compete at the highest level!

<Required For Operation>

  • 2ch, 2 servo R/C system for cars
  • .21 class engine
  • Muffler & manifold
  • Tires & inners for 1/8 buggy
  • Fuel
  • Fuel bottle
  • Plug heater
  • Starter box
  • Batteries for R/C systemOil for air cleaner (No.96176 HG air cleaner oil is recommended)
  • Paint for body                       

<Kit Contents>

  • MP9 TKI4 pre-assembled chassis kit
  • Wheels
  • Pre-cut clear body
  • Wing
  • Fuel tube
  • Linkage parts
  • Logo decals

Chassis Technical Data

Length                                                           490mm
Width                                                             307mm
Height                                                            180mm
Ground Clearance                                            28mm
Wheelbase                                                      325mm (4 settings / by changing rear hub collar position)
Tread (F/R)                                                     254mm (rear 3, front 2 settings / by replacing bushes)
Tires (F/R)                                                      sold separately
Gear Ratio                                                       11: 7 :1
Weight                                                            2,950g approx.
Engine                                                            21 class (sold separately)