Quaife's range of Clubman and heavy duty H-pattern synchromesh gearboxes retain the standard synchromesh engagement parts from the original gearboxes, and offer optimised gear ratios for motorsport to make the most of the power and torque from the engine in any given gear.
These are the next progression from a synchromesh gearbox, and are for those looking to decrease the time spent shifting gear by removing the necessity of operating the clutch for each gear change. Many of these dog boxes still use the same ratios as the synchromesh boxes.
The ability to shift gear without using the clutch reduces the time spent off the power and allows drivers to get back on the power sooner, resulting in faster overall race times.
Shifting with a dog box is different to a synchro box in that gear changes need to be fast and positive rather than slow and smooth.
For those looking for the ultimate in fast gear changes, our range of sequential gearboxes is the logical progression from H-pattern gearboxes, offering ultra-fast gear changes through use of Quaife's proven drum change technology.
These sequential gearboxes are fully compatible with flat-shift ignition cut systems to allow full throttle gear changes, so unlike an H-pattern dog box, where lifting off the throttle is required, gear changes can be made with no noticeable interruption to power delivery.
Quaife Speed Calculator
Optimise your gear ratios to suit your requirements with our Free Speed calculator. Click here to download. (Self Extracting EXE).
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