Specifications 6 Speed 3MO ETV Sequential Gearbox
SPECIFICATIONS
3MO FRONT WHEEL DRIVE GEARBOX
Torque 500 Nm / 370 lb-ft
FWD 500 6 Speed
OVERVIEW
The 3MO ETV 2WD 6 Speed sequential gearbox has been designed to fit both front and rear engined saloon and prototype race cars where the engine is mounted in the transverse position..
3MO's extremely versatile ETV gearbox is well proven with over 500 units running in Motorsport vehicles around the world. This 500 Nm capable gearbox has been fitted to championship winning cars in Europe, Asia and the South Pacific in Circuit, Road Racing, Hillclimb, Off-Road, Rally-Cross and Rally motorsport disciplines.
This 3MO transmission has been and is fitted to a number of Global OEM car manufacturer's "one make race" programs. Some examples are:
- Citroen's rally program with the DS3 R3.
- Lamera's 8, 10, 11, 12 and 30 hour circuit racing endurance events.
- VW Polo and Ameo Cup.
- Renault Megane TCR.
- Kia Ceed TCR.
High torque handling capacity of 350 Nm with short final drive ratios and up to 500 Nm with long final drive ratios, combined with fitting flexibility makes this transmission extremely popular with race car drivers around the globe. There are two versions - one for clockwise rotating engines and another for counter clockwise rotating engines e.g. Honda B Series.
To optimize race vehicle performance, there's a wide range of gear ratios to choose from. When combined with the 10 final drive ratio options; there's a ratio for almost every situation out there - be it on the tarmac, gravel or dirt. Gearbox lubrication is provided by either an external pump feeding internal oil galleries, or splash lubrication depending on the customers preference and budget.
The standard self-locking-differential has 3 plates and 12 friction discs with (40 °/ 60 °) or (30 °/ 60 °) ramps, and will meet customer needs in 90% of race conditions. However; for extreme applications there's also a 4 plate with 16 friction disc option. Our differentials are fitted with new molybdenum-coated friction discs. Molybdenum is a high performance friction metal. It has a high level of elasticity and improves the characteristics of steel at high temperatures providing better progressiveness, higher coefficient of friction, and a longer service life. We have a range of gearbox accessories available too.
These gearboxes meet FIA R3 specifications for Rally, and TCR / WTCC & CTCC specifications for Circuit Racing. We have 3MO sequential transmissions for sale now.
APPLICATIONS
Circuit Racing - Road Racing - Time Attack - Rally - Hillclimb
BENEFITS
Reliability - High Torque Capacity - Optimized Gear Ratios - Flexible Fitting
SPECIFICATIONS
- 6 speed sequential gearbox with straight cut and dog engaged gears
- Maximum engine torque 350 Nm / 260 lb-ft (short final drive ratios) to 500 Nm / 370 lb-ft (long final drive ratios)
- 20mm / 0.787" gear tooth width on 1st, 2nd, 3rd and 17 mm / 0.669" on 4th, 5th, 6th
- 89mm / 3.5" shaft centreline
- 11 final drive ratio options
- 35 gear ratio options
- Self locking differential with two disc and ramp options
- 3 plates with 12 friction discs, ramps 40 ° / 60 ° (or 30 ° / 60 °)
- 4 plates with 16 friction discs, ramps 40 ° / 60 ° (or 30 ° / 60 °) - Splash or External Oil Pump lubrication channelled through internal oil galleries
- Input shaft lenght and spline to suit customer needs
- 52mm hydraulic clutch bearing + feeder hoses
- 0-5V gear position sensor
- Lock out cable for reverse
- Weight: 41kg / 90lb
RATIOS
Final Drive Ratios |
Gear Ratios |
Gear Position |
||||||||
Teeth | Ratio | Teeth | Ratio | 1st | 2nd | 3rd | 4th | 5th | 6th | |
Ultra Short | 11 x 53 | 4.818 | 12 x 37 | 3.083 | ||||||
Ultra Short | 13 x 60 | 4.615 | 12 x 35 | 2.917 | ||||||
Short | 12 x 52 | 4.333 | 13 x 34 | 2.615 | ||||||
Short | 12 x 50 | 4.167 | 15 x 36 | 2.400 | ||||||
Medium | 12 x 45 | 3.750 | 13 x 31 | 2.385 | ||||||
Medium | 16 x 53 | 3.313 | 14 x 33 | 2.357 | ||||||
Long | 17 x 53 | 3.118 | 13 x 30 | 2.308 | ||||||
Long | 16 x 47 | 2.938 | 14 x 32 | 2.286 | ||||||
Ultra Long | 18 x 51 | 2.833 | 13 x 29 | 2.231 | ||||||
Ultra Long | 15 x 41 | 2.733 | 14 x 30 | 2.143 | ||||||
Ultra Long | 17 x 45 | 2.647 | 15 x 32 | 2.133 | ||||||
14 x 29 | 2.071 | |||||||||
16 x 32 | 2.000 | |||||||||
17 x 33 | 1.941 | |||||||||
15 x 29 | 1.933 | |||||||||
17 x 32 | 1.882 | |||||||||
17 x 31 | 1.824 | |||||||||
15 x 27 | 1.800 | |||||||||
17 x 30 | 1.765 | |||||||||
18 x 31 | 1.722 | |||||||||
17 x 29 | 1.706 | |||||||||
18 x 29 | 1.611 | |||||||||
16 x 32 | 2.000 | |||||||||
15 x 29 | 1.933 | |||||||||
15 x 27 | 1.800 | |||||||||
18 x 31 | 1.722 | |||||||||
16 x 27 | 1.688 | |||||||||
17 x 28 | 1.647 | |||||||||
18 x 29 | 1.611 | |||||||||
17 x 27 | 1.588 | |||||||||
17 x 26 | 1.529 | |||||||||
18 x 27 | 1.500 | |||||||||
17 x 25 | 1.471 | |||||||||
18 x 26 | 1.444 | |||||||||
19 x 27 | 1.421 | |||||||||
18 x 25 | 1.389 | |||||||||
20 x 27 | 1.350 | |||||||||
19 x 25 | 1.316 | |||||||||
21 x 27 | 1.286 | |||||||||
21 x26 | 1.238 | |||||||||
22 x 27 | 1.227 | |||||||||
19 x 23 | 1.211 | |||||||||
21 x 25 | 1.190 | |||||||||
20 x 23 | 1.150 | |||||||||
23 x 26 | 1.130 | |||||||||
20 x 22 | 1.100 | |||||||||
21 x 23 | 1.095 | |||||||||
28 x 30 | 1.071 | |||||||||
28 x 29 | 1.036 | |||||||||
23 x 23 | 1.000 | |||||||||
25 x 24 | 0.960 | |||||||||
32 x 30 | 0.938 | |||||||||
23 x 19 | 0.826 |
ACCESSORIES
- Bell housings and Adaptor plates
- Mounting kit
- Gear lever
- Shift Cut Knob for Gear Lever
- Paddle Shift Solutions
- Breather Kit
- Programmable gear position display
- Hydraulic feeder release clutch tubes kit
- Clutch cover & disc
- Flywheel
- Starter Motor
- Output flanges / CV Joints
- Drive Shafts - custom made 28mm maximum
- Clutch - 184mm maximum
NOTES
- This gearbox is defined for a ceramic single-disc clutch or Sintered double-disc 184mm max; with clutch disc (s)
- The original flywheel cannot be kept because it is not compatible with a rigid clutch 184mm.
- The box is designed to accommodate standard tulips Peugeot Citroën Boxer / Jumper in 41 grooves.
- A minimum 0.7" master cylinder can be installed on your original clutch pedal.
- It is imperative to install an adjustable end stop on the clutch pedal, because the hydraulic stop does not have an output stop.
- Depending on your application an oil cooler may be needed, if so then a 13 row cooler measuring 210 x 98 x 50mm with AN6 inlet / outlet fittings will work well.
- Motul HD 85W-140 Mineral or Motul 75W-140 Gear Comp Synthetic are the correct lubricants for this gearbox operating at 95-110°C or 203-230°F.
- Oil Capacity is 1.4L excluding lines and cooler