The nissan consult 3 gearbox role and retrofitting

The role of the gearbox
A car's transmission system nissan consult 3 on the car's speed, fuel consumption and even bend on the performance have a decisive impact, but this part has been less attention for domestic modification fans. The car's transmission system, including the gearbox, clutch, flywheel, differential and drive shaft. Let me talk about the gearbox, it is a part of the best big man in the transmission system. Its name implies, the gearbox is used to "change" speed, any engine has its optimum working range, also known as dynamic area (power band), refers to the engine can be issued the maximum or close to maximum power and maximum torque speed (rpm) range. In general, the driver is able to engine speed to maintain hope in the driving power the region in the most efficient transmission function is in maintaining the premise of constant engine speed, variable-rate through different gear to change the driving speed of the car.
Gore variable rate table, we can see that the factory designed deliberately to Gore's 3-5 (3-5 gear of the speed difference of 28km / h and 31 km / h gear variable rate difference Widen general power comparable to the difference between the sports car should be 25km / h or less), with benefit to reduce Gower fuel consumption and engine noise in a high-speed cruise (100km / h and above), but also   X-431 Diagun  weakened the car in 4 block (especially) and 5-speed acceleration force Gore to reach top speed in most cases, only 4 block.
The gearbox modification: replace the final pass
For performance-oriented modification fans, how to strengthen the force of the speed of the car is the issue they care about. In fact, in addition to modified engine, the most to improve the ability of the speed of the car is modified gearbox (rate), in the case of Gore, if you can increase the variable rate, for example, the final pass ratio (final drive ratio, the main deceleration ratio) to 4.5 (15% increase), once they are full gear within the engine speed pulled 15% and shorten the engine from low speed even the time required by the maximum the hp peak value point raised to the power zone, directly improve car speed on each block.