Quaife Box on Trial at Mountune
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Quaife QBE46Z Ford MMT6 5-Speed Sequential Gearbox
Our two Ford Focus sequential transmissions are currently undergoing testing by Mountune. The eagerly anticipated Quaife QKE45Z and QBE46Z 5-Speed Sequentials cater for the Mk2 and Mk3 Focus ST/RS models respectively. The former is at Mountune in the UK, whilst the latter is over the pond at Mountune USA in California.
Ford’s MMT6 gearbox is most associated with the current generation Mk3 Focus ST and RS.
One of the most popular and accessible hot hatchbacks on UK roads, the Mk3 Focus ST was launched in 2012, producing a healthy 252bhp from the company’s 2.0-litre EcoBoost engine. Although it did away with its predecessor’s Volvo sourced five-cylinder engine, which was beloved by many an enthusiast, the current Focus ST has still remained at the upper-end of the hot hatch rankings. Practicality was addressed by the firm sticking with a 5-door only format, along with interestingly, an estate.
The current Focus RS was launched to great fanfare in early 2015 and has been powered by the 2.3-litre turbocharged inline-four engine, also found in the EcoBoost Mustang. Producing 350bhp with power being sent to all four wheels, the RS can undertake the 0-62 mph sprint in just 4.7 seconds.
Interestingly, many owners of these two sporting Fords have opted to fit Quaife’s Automatic Torque Biasing Differential to improve traction and increase their vehicle’s performance envelope. Indeed, the ATB differential for the Mk3 Focus RS is now approved by Ford when fitted by Mountune or a Ford authorised dealership.
The Quaife QBE46Z 5-speed sequential gearbox is a product designed specifically for use in the Mk3 Focus ST & RS, vehicles initially fitted with Ford’s MMT6 transmission.
Key features include:
- Gear-kit reuses original bell-housing from gearbox.
- Drum style shift mechanism for fast reliable gear changes.
- Retains OEM clutch, differential, drive-shafts and mounts.
- Optional Quaife ATB differential.
- Strengthened outer casing.
- 5 wider than standard gears for additional strength.
- Choice of straight cut or helical gears.
- New generation of gear-change mechanism allows fitment into front or rear wheel drive configurations.
- Compatible with flat shift systems.
- Includes Oil Temperature Sensor. Supplied with either a lever and cable or air actuator.
Gear ratios:
1st 2nd 3rd 4th 5th
3.000 – 2.067 – 1.556 – 1.263 – 1.087 – Straight Cut
3.214 – 1.950 – 1.400 – 1.069 – 0.935 – HelicalFinal drive ratios:
3.944 – 3.450 – Straight Cut
3.542 – HelicalRS Edition.
FPM375 Rocks
The rest of the “M” maps suck
I obviously know funk all about gear gearboxes or diffs or gear ratios..
all the folk Ive built diffs and boxes for and worked out what size wheel/tyre and diff/gearbox ratios are best for them must be wondering how I do it as I know nothing.
No nothing.
No Mods. No rockers. Just a chunky knob, thats now been replaced by an RS knob innit.
No tackiness.
Std as Ford intended, but with a space saver wheel and jack and nuts and wheel brace. oh.. and flaps, a man has got to have flaps.
Innit?
