V12 Model Engine Combo | MCU

First working miniature V12 model engine and its 4-speed transmission match in the world


* The prices do not include duties and taxes. They will be charged when goods arrive at your local customs.



  • Dimension: 216 (L) x 161 (W) x 159 (H) mm
  • Weight: 4.5kg
  • Type: Single Over Head Cam, 24 Valves, four stroke
  • Fuel: Gasoline
  • Stroke: 18mm
  • Bore: 16.68mm
  • Compression Ratio: 9.5
  • Displacement: 49.89CC
  • Rev Speed: 2000~12000rpm
  • Spark Plugs: Iridium Spark Plugs
  • Cooling: Water Cooling & Dry Sleeve, Gear Water Pump
  • Lubrication: Splash Oiling with oil passage
  • Starter: Brushless Start Motor
  • Piston: Aluminum Alloy, Dual Ring
  • Ring: 1 × Ductile Ring & 1 × Fluorine Rubber Ring
  • Firing Order: 1-9-4-11-2-7-6-10-3-8-5-12
  • Crankshaft & Camshaft: One-Piece, Alloy Steel, Fully Supported
  • Carburettor: Big Dint, four stroke type
  • Others: reserved ports for upgrading to independent lubrication


  • Gears, crankshaft, camshafts, cylinder sleeve are made of steel
  • Engine block, pistons, piston rods are made of aluminum alloy
  • Valve spring is made of spring steel


Output Shafts

  • Diameter 6mm, with pin hole
  • 3 Output Shafts: A, B, C.
    Possible config: single A, single B, single C, dual AC, dual BC (Please refer to below description).
    Default delivery: AB type.
    Note: The more output shafts, the less effciency.
    Note: Shaft B turns in direction opposite to engine’s output.

Gear Shifts

  • 6 Shifts: 1, 2, 3, 4, N, R. Sequential gearbox, shifting by servo, with reverse inhibit feature.
  • Up-shifting sequence: RN1234.
    Down-shifting sequence: 4321NR.
  • Gear ratio (in/out):
    Gear 1: 2.88:1
    Gear 2: 2.07:1
    Gear 3: 1.32:1
    Gear 4: 1:1


整体 01 整体 02 整体 03

Shafts Layout

Dual Shaft

Dual shaft AC or BC is suitable for front engine & four wheel drive car with high ground clearance. This config will need a transfer case or a differential to offset speed difference.

AC或BC轴 02

Single Shaft

Single shaft A or B is suitable for front engine rear wheel drive layout.

AB轴 02

Single Shaft

Single shaft C is suitable for middle engine rear wheel drive layout

C轴 02

Single Shaft

Single shaft C is suitable for this middle engine four wheel drive layout. However it needs to install a PTO ( power take-off ) at rear differential to drive front wheel. Differentials are needed.

C轴 2 02


Operation Instructions (MCU) Download
Dimensions Download
Gearbox Configure Download
Output Shaft Options Download
Water Inlets & Outlets Download


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