TECH: STAGE6 PVL

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STROKE 39.2-39.3mm 50-70cc Cranks
Rod 80mm 2.20mm (Stock DRR/Apex)
Rod 85mm 2.25mm (Malossi Team 50cc, 70cc Cross)
Rod 90mm 2.30mm

STROKE 44mm
Rod 80mm 2.55mm
Rod 85mm 2.60mm (Malossi Big Bore)
Rod 90mm 2.65mm (2Fast)

STROKE 45
Rod 80mm 2.60mm
Rod 85mm 2.65mm (Stock Apex/DRR)
Rod 90mm 2.70mm

STROKE 45.8mm
Rod 80mm 2.65mm
Rod 85mm 2.70mm
Rod 90mm 2.75mm

MHR Team ignition is a great innovation!!!

Manages multiple maps simultaneously without having to resort to a hand-held device, with just a simple click. Ability to shift the selected map by moving the OFFSET (± 2°).

The inner rotor ignition systems designed by Malossi are based on the state-of-the-art technology applied to racing. Such a new system resulted from the need to overcome the technical limitations imposed by conventional flywheel ignition, which cannot ensure consistent performance over 10,000 rpm and causes severe setting-up problems for racing vehicles.

We dramatically modified the control unit to create two new Inner Rotor Ignitions: MHR and MHR Team.

We made the control unit even more immune to interferences developing an uP STM8 - 8 bit microprocessor with processing speed of 20MIPS, guaranteeing spark timing with greater accuracy than prior versions!

The MHR version includes a control unit with variable spark advance timing, not adjustable.

The MHR Team includes a control unit with variable spark advance timing and with 3 trimmers:

• the first trimmer (MAPS) is for selecting the spark advance timing map
• the second trimmer (OFFSET) allows you to shift the selected map ± 2°
• the third trimmer (LIM) used especially for 4-stroke engines, permits you to vary the rev limit between 11.500 RPM to 14.300 RPM and also allows you to disable the rev limiter

It also features 8 preset maps described as follows:

• 2 variable spark advance maps for 4 stroke engines
• 5 variable spark advance maps for 2 stroke engines
• 1 fixed spark advance map

The installation instructions graphically illustrate the best spark advance setup for different engines.

Technical features

CDI

Control unit with variable spark advance timing and with 3 trimmers:

• trimmer MAPS: selects the spark advance timing map
• trimmer OFFSET: shifts the selected map ± 2°
• trimmer LIM: selects the rev limit (16 possible settings)

8 preset maps:

• 2 variable spark advance maps for 4 stroke engines
• 5 variable spark advance maps for 2 stroke engines
• 1 fixed spark advance map

• System based on a uP STM8 - 8 bit microprocessor with a processing speed of 20MIPS (Million Instructions Per Second).
• Reduced processing time, improved spark advance precision and stability.
• Hardware architecture with improved immunity to interferences.
• Temperature class 105°C cable.
• Compensation for flywheel fitting error of ± 2° with 0.5° increments via an external trimmer
• 8 spark advance tables selectable via an external trimmer
• Vector spark advance tables comprised of 24 breakpoints with linear interpolation.
• Adjustable rev limit via an external trimmer with 16 settings.
• Soft cut feature insures a gradual rev limit cut-off.
• 15 settings to adjust the rev limit between 11,500 RPM and 14,300 RPM with 200 RPM increments plus a setting to disable the rev limiter.

High voltage coil

• Capacitive discharge
• Ultra high efficiency
• Constant 30,000 V discharge voltage up to 20,000 rpm

Rotor-stator unit

• Small (Ø 58 mm) and light inner rotor
• Permanent magnet rotor ensuring excellent performance
• Unprecedented efficiency with minimum weight

WARNING : with this kind of ignition the lighting set is disconnected.